/HAM/ Amateur, CB, Shortwave Listening, Pirate Radio General

[Anonymous No.2529822]

Chad CW edition, other modes: wait your turn

Old thread got spam-kerchunked by zoomers with 'fengs >>2516053

Eternal thread theme: https://www.youtube.com/watch?v=7gd43b_ZcuU

>New to /ham/? Read this shit!
http://www.arrl.org/what-is-ham-radio
https://www.fcc.gov/wireless/bureau-divisions/mobility-division/amateur-radio-service
>Your search engine of choice works well too!

The FAQ is now back:
https://wiki.cybsec.io/index.php/HamFAQ
>NEW FAQ is updated to preview 13
https://files.catbox.moe/3xr6gh.htm
>The wiki is down but is archived: https://archive.is/PjR5s
>Idiot's Guide to Coax Cable
https://www.pcs-electronics.com/guide_coax.php
>Looking for frequencies to monitor near you?
http://www.radioreference.com
>Basic Rx loop fundamentals
https://www.w8ji.com/magnetic_receiving_loops.htm
>DIY SWL Mag. Loop
http://www.kr1st.com/swlloop.htm
>Small Tx Loop
http://webclass.org/k5ijb/antennas/Small-magnetic-loops.htm
>In Depth Loop articles
http://www.kk5jy.net/magloop/
>Homebrew RF Circuits
https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Homebrew_RF_Circuit_Design_Ideas.htm
>NEW Library
https://mega.nz/file/UCgEGAjb#rwNcnMAQCUUbSp8supsFvn9QEHCWUW86eLcZa16ZG4Y

>Online Practice Tests:
http://aa9pw.com/
https://hamstudy.org/
https://hamexam.org/
> Real-Time Propagation Data
http://prop.kc2g.com/
>Space Weather
https://www.swpc.noaa.gov/communities/radio-communications
>WSJT-X 2.1 User Guide
https://physics.princeton.edu/pulsar/k1jt/wsjtx-doc/wsjtx-main-2.1.2.html
>Homosexual (ft8) guide
https://www.g4ifb.com/FT8_Hinson_tips_for_HF_DXers.pdf
>APRS
http://www.aprs.org/
>how do I into Morse code in a good way?
https://pastebin.com/XwATbRrH

[Anonymous No.2529833]

>>2529822
Do some clubs set up repeaters to vary how often they ID based on how often they're used? I got out my old scanner to start listening again and it seems like some of the repeaters that aren't getting activity are IDing much less often than they used to, going from once an hour like they used to to about once a day.

[Anonymous No.2529834]

>>2529822
>how do I into Morse code in a good way?
>https://pastebin.com/XwATbRrH
New pastebin https://pastebin.com/HByjfN4F

[Anonymous No.2529835]

>>2529833
Yeah, as you are required to ID every transmission and while transmitting in certain intervals, there is no requirement for them to ID when no activity happens.
Some get triggered to ID when first keyed up after a long inactivity.

[Anonymous No.2529870]

>>2529835
Alright. I was worried at first that some of the repeaters here had shut down or that I was getting a shit ton of interference from something due to how little I hear when scanning now. I used to hear all of the repeaters on my scan list ID regularly, but now it's just 2 out of 6 that do.

[Anonymous No.2529901]

>the Chad repeater

[Anonymous No.2529977]

>>2529833
The ones around here don't bother IDing at regular intervals. They just do so when they're opened, every 10 minutes while people are talking on it, and 10 minutes after the last transmission.

[Anonymous No.2530220]

bought myself a little sdr dongle to start wrapping my head around all of this (I am VERY green.) Using CubicSDR. Seems like I can't just pop in a frequency and have it work. It's like I have to put in the frequency, then I have to "wobble" the center frequency back and forth start seeing anything other than static. I guess what I'm getting at is...why do I have to do that lol

[Anonymous No.2530227]

>>2529822
CQ CQ calling CQ my diaper needs changing.

[Anonymous No.2530228]

>>2530227

[Anonymous No.2530229]

>>2530227
I'll send my nurse over 73

[Anonymous No.2530230]

>>2530227
>>2530229
BREAK BREAK BREAK

[Anonymous No.2530232]

>>2530230
Bye Bye Bye

[Anonymous No.2530265]

From last thread: >>2529032
Any inputs to the FAQ?

[Anonymous No.2530267]

>SFI: 0
It's all happening!

[Anonymous No.2530268]

Can you explain what are you discussing with a complete stranger who barely speaks English just like you? "Hello I'm anon, how is the weather where you live? Why you want to nuke us?"

[Anonymous No.2530376]

>>2530227
>>2530228
>>2530229
>>2530230
>>2530232
>samefag spammer

[Anonymous No.2530504]

i love driving around and chatting with random boomers on my CB radio

[Anonymous No.2530570]

>>2530504
Tell me, what CB channel are you using to talk to these Boomers? I don't think you have CB at all.
CB is all Basketball-Americans running KW amps, or local Mexicans.

[Anonymous No.2530577]

>>2529822
Speaking of SAQ, did anyone in western North America pick up their Christmas Eve morning transmission? I hooked up my Palomar VLF converter to 20 metre long wire hastily thrown up in a tree near my 3rd floor balcony. Heard nothing. :-(

[Anonymous No.2530578]

>>2530577
It seems to have been cancelled..

https://swling.com/blog/2022/12/saq-transmission-scheduled-for-christmas-eve-morning-dec-24th/

[Anonymous No.2530580]

>>2530578
Apparently they had the coof SOOO bad they couldn't xmit.

[Anonymous No.2530678]

Stop interfering with emergency services.

[Anonymous No.2530680]

>>2529901
Why would anyone use a repeater and not just crank power on simplex?

[Anonymous No.2530826]

>>2530680
First iff there us the inverse square law, secondly a repeater is normally located where it has good line of sight coverage.

[Anonymous No.2530905]

>>2530826
So why not move your antenna higher? A repeater makes sense for industrial use but I can't see why I'd want to play repeater warrior all day when hf exists.

[Anonymous No.2530918]

>>2530905
>So why not move your antenna higher?
That is always a good idea if possible. HOA typically forbid such things.
>A repeater makes sense for industrial use but I can't see why I'd want to play repeater warrior all day when hf exists.
Some prefer VHF/UHV, but yes, HF can have better coverage, though it deends on time of day.

[Anonymous No.2530965]

>>2530376

[Anonymous No.2531167]

I've been to a few ham radio club meetings. I am disgusted by boomers and their lackeys. 90% are self proclaimed librarians but they all suck the FCC's dick.

[Anonymous No.2531169]

I've been to a few ham radio club meetings. I am disgusted by boomers and their lackeys. 90% are self proclaimed libertarians but they all suck the FCC's dick.

[Anonymous No.2531281]

How would you use a handheld radio that is 15m underground? Is there a simple repeater that you could use to transmit to and just hook a long antenna cable up to that which leads to the surface? Would it be impossibly complicated to set up a dozen or so of these? Or would that many repeaters and handsets complicate it? If you can understand what I'm talking about, apologies for my autism.

[Anonymous No.2531285]

>>2531281
Maybe if I elaborate a bit more on my intentions it might make sense. Basically I just want an emergency call function in an underground mine. There are quite a few other miners that would be interested if I could sort out the logistics.

[Anonymous No.2531323]

>>2531169
Another /k/ refugee, I see.

[Anonymous No.2531521]

>>2531281
Look up "cave radio", this is a known problem with solutions. Depending on the situation, you could have an underground basestation connected with cable to an overground relay.

[Anonymous No.2531523]

Just your threadly reminder that all you need for DX contacts is 100 watts and a wire. Don't fall for the antenna jews and have them jew you out of a lot of money.

[Anonymous No.2531535]

Looking to buy a shortwave radio but I can’t decide between the Tecsun PL310ET or the PL380 I’ve heard good things about both of them which would you guys recommend?

Also thanks to the anon on /g/ who told me to post here

[Anonymous No.2531545]

newfag here, just got my tyt uv380. trying to make a codeplug to listen to my local BM repeater to start off and not piss off any boomers while at it, wish me luck

[Anonymous No.2531547]

>>2531545
Good luck.
t. programming all my radios by hand

[Anonymous No.2531600]

>>2531535
>PL310ET
This one has a nice frequency knob, you don't want to listen to SSB ?

[Anonymous No.2531623]

>>2531600
Do you think I should get one with SSB? I’m just getting into radio and I’m more just trying to hear foreign radio stations but I wouldn’t mind hearing HAM conversations

[Anonymous No.2531624]

>>2531623
It's really up to you, what you want to do and how much money you are ready to put into that, it can be a step into HAM activity, you can listen to weather broadcasts for airplanes, decode weather fax with a computer and audio input or your phone

[Anonymous No.2531628]

>>2531624
I might go ahead and get a radio with SSB
Do you have any recommendations?

[Anonymous No.2531634]

>>2531628
Something from tecsun would be ok, I have the PL-660 and it's fine with an external antenna to listen to HAM or you get a FT-817 or FT-818 it also does VHF and UHF, all modes (although I am not sure it does the broadcast wideband AM) but you also need an external speaker or headphones cause the embedded one sucks ass (too small) and an antenna...

FT-818ND :
Receive: 100 kHz-56 MHz
76 MHz-154 MHz
420 MHz-470 MHz

Tecsun PL-660
FM: 76-108 MHz
LW: 100-519 kHz
MW (AM): 520-1710 kHz
SW: 1711-29999 kHz
AIR: 118-137 MHz

[Anonymous No.2531640]

>>2531628
Get one with SSB. HF airband, utility, military and amateurs use SSB.

[Anonymous No.2531662]

>>2531634
Alright I’ll check those ones out thanks for your help

[Anonymous No.2531665]

>>2531640
What radio would you suggest?

[Anonymous No.2531670]

>>2531665
Yaesu FRG-7700 or any other ham-sized rig, get you used to operating one plus they're the best you can get

[Anonymous No.2531671]

>>2531670
Thanks man

[Anonymous No.2531972]

>>2531323
that knife placement is one of the most retarded things i've seen this year

[Anonymous No.2532245]

>>2531523
wouldn't endfeds require at least 1:49 or 1:64 ununs ?

[Anonymous No.2532292]

Any idea what this could be, it's in an abandoned car in the Brazilian army

[Anonymous No.2532294]

>>2529822
I know the idea of amateur radio dying or new technology/changes to regulations killing amateur radio was already cliche before I was born, but is the current situation with digital voice modes and internet linking becoming a threat to future amateur radio use of the VHF and higher frequency bands? Consider:
>a significant portion of VHF/UHF activity these days is digital voice modes or other internet linking like AllStar, with most activity by users of those being radio -> repeater/node -> a server somewhere on the internet with no one else on that repeater/node at the time, rather than radio -> repeater -> radio
>a large number of people who use these digital modes do so via low power hotspots (normally running bluetooth level TX power) that they run themselves via their computer, reducing their radio to a fancy wireless microphone and speaker for their computer, with MMDVM hotspots that allow for people with analog radios to join in driving this point home even harder
>with few exceptions like DMR-MARC and small private servers that don't allow for hotspots, you can even communicate from end to end on many of these networks using a PC/phone client like DUDE-Star or DroidStar, without either party even touching amateur radio bands
How are amateur radio enthusiasts supposed to defend the bands from corporations wanting to gobble them up if this is how these bands are being used these days? Companies can just say lol put your smartphone in a fancy case like pic related to a lot people who use digital voice modes and internet linking at this point, or point them to one of those Zello radios or whichever CB radio manufacturer that was that let you link your CB radio to your phone via bluetooth if they want something more "authentic".

[Anonymous No.2532310]

>>2531662
Found this one too, from the 90s so maybe you can get a used one for cheap
https://www.opweb.de/english/company/Grundig/YB500
it will have poor performances but as an entry tool to a hobby, why not

[Anonymous No.2532311]

>>2532292
is there a label on the other side ?
Also what kind of army abandons cars ?

[Anonymous No.2532315]

>>2532292
>those function keys
Are you sure this isn't some fancy terminal out of a taxi?

[Anonymous No.2532324]

>>2532292
It's a terminal to configure some GPS tracker in the car ?
https://fccid.io/ANATEL/01759-09-05500/Manual/8168C3F7-8869-483F-B3EC-B19520186E5A/PDF
https://www.youtube.com/watch?v=LluzzJ9gc_c

Omnilink something

[Anonymous No.2532365]

>>2532311
>>2532315
>>2532324

Thank you all so much my father-in-law from Paraná was already crazy

especially you buddy >>2532324

[Anonymous No.2532387]

Let's talk about motorized rotating magloops.
Why are magloops superior in every aspect, and why do 1/2wave dipole cucks seethe at the 1/13th magloops chad?

[Anonymous No.2532458]

>>2532387
>Why
Please do tell.

[Anonymous No.2532556]

>>2532387
Talk like a human being you pile of shit

[Anonymous No.2532648]

>>2532294
>all but one of the digital mode repeaters in my area can be listened to online, without needing to go through a separate service like broadcastify, rather than needing a radio
>one of them regularly has traffic from people talking about using hotspots, or using AMBE3000 dongles on a computer or an app on their phone to access the system without a radio
>I only hear traffic on one of the analog repeaters in my area every couple days now, while it used to be a daily occurrence when I first got interested
It really is disappointing. Then there's the segmentation issue since there are no combination DMR/DSTAR/YSF radios to access all the repeaters in one's area.

[Anonymous No.2532806]

anybody know of a good wspr beacon kit?

[Anonymous No.2532813]

>>2532245
>require
No, but they'll work well with 49:1 and 64:1.

[Anonymous No.2532816]

>>2532245
Resonant endfeds yes, random wire/non-resonant antennas are good with low impedance like 9:1 ununs

[Anonymous No.2532892]

Soon

[Anonymous No.2533049]

>>2532806
>Radio
>Antenna
>Computer
>Internet
Why do you need a kit, laziness?

[Anonymous No.2533095]

>>2532806
QRP Lads has two kits that have been reviewed:
http://qrp-labs.com/qcxp
https://qrp-labs.com/ultimate3.html

[Anonymous No.2533153]

>>2533049
to free up my radio for other uses

[Anonymous No.2533155]

>>2533095
thanks, was looking at this one.
not sure I like the external gps board
looks like it might be a pia

[Anonymous No.2533352]

Is it okay if the ends of my antenna are looped to tie them down? I want to make a random wire shortwave antenna and I have a functionally unlimited supply of 24awg cross connect wire. I was just going to tie one end to a metal hook on my garage and run it about 45 feet to a steel awning by my window. Should I use insulators and string instead of tying it to the structure? Even with the insulator I will have to put a loop at the end of the wire to tie it on.

[Anonymous No.2533374]

Just built my first Balun
Is it normal to get continuity between the signal and the ground?
I built this design:
https://vk6ysf.com/unun_9-1_v2.htm

[Anonymous No.2533377]

>>2533374
Green hooks to yellow, yellow hooks to red, red hooks to blue. There is continuity.

[Anonymous No.2533380]

>>2533377
thanks
I'm still learning this shit

[Anonymous No.2533472]

>>2533374
>I built this design:
>https://vk6ysf.com/unun_9-1_v2.htm
That's the same I built, works like a charm with a random wire on SOTA trips.

[Anonymous No.2533473]

>>2533374
there's continuity in DC, but as the frequency raises, the inductance stops the HF current.

[Anonymous No.2533482]

I work at a facility with handheld radios and I've been trying to get my new UV-5R to transmit. I can receive transmissions but I cannot transmit on our frequency which is 469XXX, but I can transmit on the lower amateur bands. My older UV82 can transmit and recieve with no problem. Is my new UV5R factory locked to not transmit above the amateur band?

[Anonymous No.2533483]

>>2533482
We are replacing our old radios with baofeng. Pictured is the old radio. Maybe that helps the situation.

[Anonymous No.2533484]

>>2533482
Pretty sure those need to be opened up for gmrs in software. Going to need a programming cable and Chirp.

[Anonymous No.2533499]

Hi guys, is a balun necessary for a receiving antenna ?
I have the usual loop antenna like picrel and want to feed it in a SDR or another receiver that has a coax connector

[Anonymous No.2533500]

Will this work?

[Anonymous No.2533501]

>>2533500
PRESS THE PTT FAGGOT
JUST DO IT

[Anonymous No.2533586]

>>2533482
https://youtube.com/watch?v=2sg3RJf1ZEA

[Anonymous No.2533591]

>CQ CONTEST
>CQ CONTEST

[Anonymous No.2533595]

>>2533500
Kerchunk
>>2533482
Accidentally found your answer - the UV should be linked in the description
https://youtu.be/m1TH9FMGL58
I was hoping it'd unlock commercial FM.

[Anonymous No.2533621]

>>2533499
>Hi guys, is a balun necessary for a receiving antenna ?
It is not necessary since there is no PA stage to burn out. Reception will be slightly worse but it will work.

[Anonymous No.2533739]

hey guys, any tips for my antenna? I'm very new to this. I'm trying to listen to shortwave on a Tecsun PL-310ET. I ran a wire from my garage to the window, and fed it inside. The end has an alligator clip crimped to it to hook to the little telescoping antenna. It works GREAT for FM, but for Shortwave it's got a shit ton of bleed over from FM stations and lots of noise. I think it might work even better unclipped from the aerial, just with the alligator clip a few inches away. The wire is about 8 feet off the ground and 32 feet long from insulator to insulator. Pic related is the far end (Northeast).

Any tips? It's 24awg and the insulators are just wooden blocks. I have it running through my window to clip to the radio.

[Anonymous No.2533740]

>>2533739
Here's the other end.

[Anonymous No.2533762]

>>2533586
Wow, what an insufferable cunt.

[Anonymous No.2533778]

>>2533472
>That's the same I built, works like a charm with a random wire on SOTA trips.
Did you have to tune the wire length?
I'm currently getting over 10 swr on all band except the 15m band. I'm running a 20m wire length.

[Anonymous No.2533792]

>>2533739
You might want to add a filter, like a low pas filter to remove everything over 30 MHz. That will remove the FM stations.

[Anonymous No.2533819]

>>2533792
Thanks, I will make one on a breadboard and try it out. Do you think a ground would help too? I'm not sure how I would ground a single wire with an alligator clip

[Anonymous No.2533850]

>muh qrp
My wife's bitch ass mixer is 65X stronger.

[Anonymous No.2533905]

>Yaesu is killing the FT-818 after 22 years with no replacement
What made them do this, and how crazy are the prices for these going to get now?

[Anonymous No.2533934]

>>2533905
I heard a rumour it was component shortages.

[Anonymous No.2533956]

>>2533905
What are the options for portable HF for under $1k now? Is it just Chinese stuff and kits?

[Anonymous No.2534013]

does fabric fuck up ht antennas at all?

I bought a couple of pic related for my hts I hand out when my friends and I go camping but I'm thinking about sleeving them with paracord to try and protect the antennas from slices, scuffs, etc and also just for fun

[Anonymous No.2534114]

>>2533934
After 20+ years it is also likely that many components are no longer available. Elecraft has had similar problems for its older products.

Yaesu has a confusing lineup, some HF portables with VHF/UHF, others without, yet essentially the same form factor.

>>2533956
(tr)uSDX is cheap.

[Anonymous No.2534153]

If the ARRL lost their QSL database, they're going belly up. That's all they have regarding a reason to exist.

[Anonymous No.2534163]

>>2534013
I imagine only if it's wet, but I've got nothing to back that up.

[Anonymous No.2534205]

>>2533850
fake and gay
>>2534013
/k/ larping at it's finest
>I need a paracord condom for my rubber duck so it doesn't get scuffed

[Anonymous No.2534454]

>>2531523
Fuck that. You can homebrew much better antennas.

[Anonymous No.2534463]

So did the band plan changes giving technicians digital mode and limited SSB privileges on the 40m and 80m bands go through?

[Anonymous No.2534484]

>>2533956
Ft-891 is $600.

[Anonymous No.2534703]

>>2529822
Unlicensed newfag here. Is there any disadvantage to using a triband antenna on dual band radio?

[Anonymous No.2534710]

>>2534703
technically dual band antenna has disadvantages

[Anonymous No.2534712]

>>2530826
>a repeater is normally located where it has good line of sight coverage.
Yeah, like right besides the window with the Reichskriegsflagge hanging in it.
>>2529901

[Anonymous No.2534721]

>>2530227

[Anonymous No.2534727]

>>2533739
Very neat setup anon.
>>2533819
It us very cool you know how to do that.

[Anonymous No.2534901]

>>2534712
eagle's nest was just a big ass repeater before UStards claimed it as nazi base

[Anonymous No.2535089]

Could ham radio enthusiasts wage an effective rebellion against the FCC if pushed to it?

[Anonymous No.2535092]

Considering this anon's post: >>2532294. What's FM activity like in your guy's area? Prior to 2020, traffic in my area used to be evenly split between 2 meter and 70cm for analog, non internet linked traffic, but now days there's basically zero activity on the 70cm band in my area that doesn't involve digital modes or internet linking. Looking on Repeater Book, about 40%-50% of the 70cm repeaters in my state and the surrounding states are digital mode or internet linked as well. Part of me is tempted to get some older single band 2 meter gear now because I love the aesthetic, after deciding against it in the past because doing so would lock me out of half the local traffic in my area.

[Anonymous No.2535095]

>>2535089
Could ANY sector of citizens rebel? They were ok with mass spying, election fraud, unnecessary wars and a totalitarian response to a bioweapon unleashed by a foreign country. If that wasn't enough to open their eyes then nothing will.

[Anonymous No.2535100]

>>2535089
A rebellion for what? Amateur radio enthusiasts aren't even the primary users on some of the bands (the 60m and 70cm bands being shared with the US military for example), so push the wrong way and you'd quickly have feds of all shapes and sizes involved rather than just the FCC.

[Anonymous No.2535106]

>>2535089
>>2535095
what the fuck do you people even want? do you not have enough freedom? to do what? i want to just grill. and i do. what else do you need in life?

[Anonymous No.2535155]

We got ourselves a bunch of FCC bootlickers.

[Anonymous No.2535457]

>>2535089
If you can get neutrino communications going, you can just evade them.

[Anonymous No.2535505]

>>2535089
youre free to transmit anything on any frequency you want. just do it.

[Anonymous No.2535602]

>>2533621
thank you, I don't even know what impedance the receiver wants anyway so I'll just connect the wires to it

[Anonymous No.2536030]

>>2535092
what state? I'm in CO and there's a repeater group that links mainly 70cm towers and its pretty popular

[Anonymous No.2536036]

>>2536030
Is that the Megalink system?

[Anonymous No.2536037]

>>2536036
idk about how it all works

its called the skyhub link. I only fuck with analog and refuse to acknowledge or learn digital but there's a couple of dudes in different countries on there pretty regularly

[Anonymous No.2536042]

>>2536037
SkyHub is entirely internet linked though, and half the repeaters on it are digital. Also what the fuck are the chances that the poster replying to me lives this close to me?

[Anonymous No.2536052]

>>2536042
bruh all I know is I transmit on the 70cm frequencies with my analog radio and it just werks

[Anonymous No.2536364]

>>2529822
Just got a Yaesu FT-818 for SOTA. I'm thinking I'll use my fishing pole that I always take on backpacking trips as my mast. Do you guys think that will be tall enough?

[Anonymous No.2536366]

Any news from the anon doing the infographics?
I just learned that 817 and 818 are now discontinued, leaving a rather large segment vacant.

[Anonymous No.2536375]

>>2536366
I think it leaves out a cheap option but there still is the IC-705 if you're looking for an all mode all band radio. I think Elecraft also does all bands but I'm not sure.

If I were you I'd buy up an 818 now before they get more expensive

[Anonymous No.2536385]

>>2536366
Those plus the Yaseu Ftm 400xdrs are discontinued and sold out. I think I got one of the last NIB 400s in the country

[Anonymous No.2536388]

>>2536364
>Do you guys think that will be tall enough?
how long is your fishing pole ?
Also it must be made of glass fiber, not carbon fiber.

[Anonymous No.2536441]

>>2536375
Elecraft does HF and I don't think their KX line transceivers do VHF or UHF.

It seems the main manufacturers are stuck in the 3 stage superhet era, while truSDX and the like do SDR tech. Much of the functionality of FTDX 9000 should be possible to repackage in a 818 form factor. Place the display and controls on the large surface rather than the tiny end surface, and you are golden.

[Anonymous No.2536677]

hi. I got a chinkshit handheld for Christmas and I'm listening to the weather. how are you guys

[Anonymous No.2536700]

I am
>>2533482
>>2533483

I tried what these friends suggested and it unlocked the radio to be able to transmit on one of the channels, but the other channel cannot hear me. When I call channel 2, the other radio will light up green saying it received it, but no audio is heard. Any ideas why this could be?
>>2533484
>>2533586
>>2533595

[Anonymous No.2536834]

>>2536677
I got a chinkshit Wouxon UV-7D 6m HT. I love this thing. There is a certain repeater that I couldn't hit before on 2m (it has repeaters for 2m and 6m), but can now hit it on 6m and have full clear.

[Anonymous No.2536914]

>>2536700
>friends
>4chan(nel)
What part of the world are you in?

[Anonymous No.2536930]

>>2536677
hello I got a TecsunPL-310et and I was able to just barely barely get the Voice of Korea north korea broadcast at 8am this morning.

[Anonymous No.2536971]

>>2536930
How are you liking that Tecsun? I've considered getting one for listening when camping instead of having to worry about my 817nd getting damaged or lost.

[Anonymous No.2537022]

>>2536914
All Anons are my friends, except for you. Nigger.

[Anonymous No.2537037]

I have decided I'm going to take up this hobby as a new thingie.

[Anonymous No.2537080]

Does shortwave generally "encompass" ham? like if I have a competent shortwave setup is that automatically capable of communicating over ham?

[Anonymous No.2537165]

>>2536971
I like it, it works well enough and it's cheap. I'm listening to 11610khz right now out of Madagascar. The only thing I wish is that it had an actual coax antenna port but I guess that's asking too much. It does have a 3.5mm jack antenna port but I need to figure out a better way to get my wire antenna hooked to it.

[Anonymous No.2537167]

>>2537080
>communicating
No.
>Listening
Probably.

[Anonymous No.2537247]

what do I listen to in Houston? it's boring here

[Anonymous No.2537251]

>>2537247
Try 9690khz

[Anonymous No.2537295]

>>2537080
>Does shortwave generally "encompass" ham?
No. Shortwave radios can normally tune around the entire HF band rather than just being locked to the shortwave broadcast bands, so if you get one that supports SSB you will be able to pick up amateur radio traffic. You'll need something larger than the built in antenna though.

[Anonymous No.2537348]

>>2536971
All tecsuns are cheap chink toys with terrible specs, they cant even be compared to the yaesu

[Anonymous No.2537388]

>>2537165
make a short pigtail with a plug and a couple of alligator clips

[Anonymous No.2537390]

>>2537022
I hear you frequent /mlp/

[Anonymous No.2537393]

>>2537348
I know that, faglord. When I'm camping I don't want to destroy my good radio with bug spray, campfire smoke, shit that falls out of the trees, etc. I was never planning on operating, just listening, so I'd rather bring a $50 radio instead of my $700 radio.

[Anonymous No.2537461]

is there actually any point to getting a non gsmr handheld?

[Anonymous No.2537462]

>>2537461
gmrs* asking because i have a baofong and its a bitch to get on a repeater

[Anonymous No.2537500]

>>2537461
Yes. Get a decent HT other than Baoshit with the CAP/MARS mod.

[Anonymous No.2537582]

How can I redesign this for 80m? Just modify the oscillating circuit?
Also, how can I create a vintage-style power supply? Bonus if it works with 12V instead of mains.

[Anonymous No.2537584]

NOVEMBER

[Anonymous No.2537616]

>be me
>tuned into a popular frequency in the background while I work
>guy comes on
>"K0FAG monitoring"
>no replies
>"K0FAG monitoring"
>no replies
>"K0FAG monitoring"
>"K0FAG monitoring"
>guy puts out his call every few minutes for almost two hours
>I take a break for lunch and decide to answer the guy
>"K0FAG this is K0BBC how are you today"
>almost immediately
>"hey man real good, hey good talking to ya I gotta run, 73s"

this is not the only time shit like this has happened
why do boomers spend thousands on equipment to be able to *talk* and then when the opportunity arises they get skittish and end their convos as quickly as possible?

[Anonymous No.2537630]

never touched radio shit but can you fun stuff with baofongs like transmit data?

[Anonymous No.2537633]

never touched radio shit but can you do fun stuff with baofongs like transmit data? easily?

[Anonymous No.2537641]

>>2537616
>fake and gay
as usual

[Anonymous No.2537642]

>>2537641
>thinking the call signs are real

[Anonymous No.2537644]

>>2537642
No shit they're fake.

[Anonymous No.2537789]

Thanks for the contact. I wish you all the best 73s'es and regards to you and yours and very good luck to you with the contest, goodbye.

[Anonymous No.2537794]

>>2537789
Not with your shitty grammar, but sometimes I respond to contesters bursting into my CQ in the slowest and most polite manner.

[Anonymous No.2537876]

>>2537582
Inductor coils L1, L2 and that 2000pf capacitor along with that parallel 500pf variable capacitor determined the resonance of that circuit. Modify those to your desired 80M 3.5Mhz band. This circuit serves as a nice demonstration to kill you with it's 900 volts (though low current) supply, but not practical to put on the air. There is no low pass filtering on the output , hence lots of harmonic energy at other harmonic frequencies of 3.5Mhz (7Mhz, 14Mhz...etc).

Try the same circuit using a bipolar or FET Transistor instead and +12volt or so power supply would be much safer. Lots of variations on oscillator designs (Hartley, colpitts, vackar, etc) can be found online.

[Anonymous No.2537951]

>>2537876
>Inductor coils L1, L2 and that 2000pf capacitor along with that parallel 500pf variable capacitor
>Modify those
Thanks, I was hoping this would be a straightforward circuit example.
Where do I start though? Just pick a value for either the inductances or the capacitance and work out the other solving the technician's formula?
>nice demonstration to kill you with it's 900 volts
I'm aware of that, but I got lots of spare 811 tubes.
>There is no low pass filtering on the output
I figure I can add that myself. Thanks for pointing that out though.
>Try the same circuit using a bipolar or FET Transistor
Same reason, I have spare 811s and this Hartley is a vintage design I want to replicate in style.
That's why I was asking how to solve the power supply issue. I have two options:
>build one working from mains
>build a different one with a buzzer and a step-up transformer and a circuit to smoothen the DC, with 12V DC as power supply. That would make the setup mobile or portable.
>inb4 more demonstrations to kill myself
I'd take precautions.

[Anonymous No.2537974]

>>2537951
The L2 and two associated capacitors set the resonant frequency of the oscillator -known as the parallel tank circuit (excluding other stray and tube capacitances). At resonance, impedance will be at max. L1 inductively couples and acts as a step-down transformer to take that high impedance and transform to likely 50 ohm for use at the antenna, though that circuit may be used with 300 ohm or 450 ohm twin lead ladder line.

It would be poor practice and unstable to directly couple the oscillator directly to the output load without a buffer stage or two to minimize frequency instability. A CRYSTAL OSCILLATOR would be a better choice, but still need additional filtering.

It may be possible to make a 12-volt to 400+volt DC-DC CONVERTER out of parts from an old PC atx power supply. Also, you would need a 6.3 volts DC/AC at several amps to light up that 811 tube.

That circuit oscillator would drift terribly and chirp horribly everytime you pressed the CW key. Not worth the work required when you can find many old tube ham radios at ham fests for cheap.

Anyways, you can find a lot of RF DESIGN books online at ARCHIVE.ORG website.
Good luck and 73.

[Anonymous No.2537980]

>>2537951
Lots of Ham Magazines and data books, and much- much more navigating this website:
https://worldradiohistory.com/Archive-DX/

[Anonymous No.2537997]

>>2537974
>The L2 and two associated capacitors set the resonant frequency of the oscillator -known as the parallel tank circuit
Thank you, but I understand the part.
I just can't wrap my head around which part to pick first when planning a parallel tank for a certain resonance frequency.
Do I just pick for example a pair of fixed and variable capacitance as in the example and solve it for the inductance and then build the coil to fit?
>That circuit oscillator would drift terribly and chirp horribly everytime you pressed the CW key.
It is expected to produce little EIRP as the antenna system will only be very loosely coupled. That way it shouldn't be thrown off frequency too much when keyed.
Thanks for the help.
>>2537980
>all QST from the 1910s onward
I've been looking for this for a very long time.

[Anonymous No.2538003]

>>2537997
Physical constraints for the inductor size or max variable capacitor may contribute to how you approach your design. Lots of online calculators and circuit ideas and suggestions can be found. Basically a juggling match of known-unknowns to arrive at a know-known conclusion.
See resonance and reactance formula examples online.

2pfL = 1/ (2pfC)
fr = 1/ (2p √LC)

Etc....

[Anonymous No.2538009]

>>2538003
>Basically a juggling match
That clears things up for me now.

[Anonymous No.2538037]

>>2538009
An 811 tube running 900 volts on the plate may easily put out over 100+ watts of RF power up thru 30Mhz. That 0.02uf/3kv DC blocking capacitor between the plate and your L/C resonant tank circuit could cause several KILL-O-VOLTS of RF that will certainly affect your component choices for voltage breakdown and inductor wire gauge and spacing. Try pricing a variable capacitor nowadays that can handle KV's of breakdown voltage not requiring a vacuum. They were as common as dirt back in the day. Going down radio history memory lane can be expensive now.

[Anonymous No.2538044]

>>2537951
I'm aware of that, but I got lots of spare 811 tubes
You can make tidy sum selling those as sources dry up

[Anonymous No.2538147]

Why are contesters so annoying?

[Anonymous No.2538181]

[Anonymous No.2538182]

[Anonymous No.2538183]

[Anonymous No.2538184]

[Anonymous No.2538185]

[Anonymous No.2538186]

>>2538185
There was a 6m version of the FT-290 ??
I want it !

[Anonymous No.2538205]

>>2538037
>affect your component choices for voltage breakdown and inductor wire gauge and spacing
I was thinking of copper tubing and put connections on porcelain posts.
>handle KV's of breakdown voltage
>can be expensive now
Thanks for the reminder, but I am not afraid of component costs in this case.

[Anonymous No.2538207]

>>2538044
Checked
I need some as spares for my PA, and currently the 811s are not too hard to get here.

[Anonymous No.2538208]

>>2538147
My number? Number please!

[Anonymous No.2538249]

>>2538147
>CQ CONTEST
>Q
>
>C
>O
>N
>T
>E
>S
>T

[Anonymous No.2538294]

What kind of antenna do I need to listen for digital radio (DMR)? In eastern Europe that is. Google says frequency is around 430 MHz.
I've got a RTL.SDR, I've listened to FM with "piece of wire" kind of antenna, but now want to explore more. Also I am BEYOND newbie, don't know shit basically.

Would a TV antenna make do? Where to put it?

[Anonymous No.2538305]

>>2538294
For only listening, many antennas will do.
Specifically any 70cm antenna, or two-banders (2m/70cm for example) or tribanders for VHF/UHF.

[Anonymous No.2538306]

>>2538305
Will this fucker work? Nagoya UT-72 VHF/UHF PL-259/SMA-F

[Anonymous No.2538307]

>>2538306
Yes, does the RTL SDR have an SMA connection?
Also, place this antenna as high up as possible. Attic or out the roof if possible.

[Anonymous No.2538308]

>>2538307
Yeah it has SMA-F, and I think I also need SMA-M to SMA-M adapter since this antenna appears to have SMA-F connector too.

[Anonymous No.2538312]

>>2538308
Get an SMA coax cable, prefab perhaps, and put a wire of appropriate length out there, vertically. May save you some money.

[Anonymous No.2538320]

>>2538312
This one has 5m of length and 50 Ohm, would it affect receptance?

[Anonymous No.2538341]

>>2538320
Yeah, impedance doesn't matter so much for reception only.
It may even work with some surplus satellite TV cable and an SMA adapter, or you solder it on yourself.

[Anonymous No.2538447]

>>2538182 >>2538183 >>2538184 >>2538185
So, how many Japanese girls are /ham/ operators in reality? Around here there are a few female /ham/ operators, many are retired from the merchant navy.

[Anonymous No.2538555]

>>2536700
Have you tried setting privacy codes? Maybe the other radios have it built in? Try using another uv5r to listen on your freq of interest. If that can hear it, then you're transmitting audio and just need to figure out what the built in privacy codes are for the other radios and use that, ctcss codes or something.

[Anonymous No.2538678]

Using something like pic-related plugged into the "Antenna" port of my tecsun PL-310et instead of alligator clipping to the whip antenna. I'm listening to a bunch of hams on 3885khz? WQXR or W2XR and he's talking to a bunch of guys I can't really hear.

[Anonymous No.2538727]

>>2537582
You'll run into frequency drift issues and your keying will sound like ass on 80m. Can be tamed but not completely unavoidable. Look into the hams who build their 1929 style transmitters. Going this route is way more fun than operating an appliance.

[Anonymous No.2538776]

Do you guys talk on the local repeaters? Is it worth it trying to get to know the people there?

[Anonymous No.2538804]

>>2538009
Calculate the reactances of that LC resonant circuit at the frequency on the schematic. 45uH at 450kHx (~630 meters) is 127 ohms. Since this is resonant with the capacitor, use the same reactance figure for the capacitor. Then use this reactance figure at the new frequency to find L and C. 127 ohms at 3.6MHz is 5.6 microHenrys and 350 picofarads. That should get you oscillating in band.

[Anonymous No.2538828]

A Massive Searchable website of all things Radio and especially HAM Radio:

WorldRadioHistory.Com

A Non-profit
free online
library.
Webmaster
David Gleason
(if you have more magazines, contact Dave)

https://worldradiohistory.com/

[Anonymous No.2538833]

https://worldradiohistory.com/

[Anonymous No.2538870]

>>2538833
Based. I know shilling is generally frowned upon, but actively managed, useful, and updated resources are dying out as everything is subsumed by reddit or other shittier social media platforms. Thank you for sharing

[Anonymous No.2538878]

>>2538727
>frequency drift issues
>keying will sound like ass
>1929 style transmitters
You certainly know what I am aiming for.

[Anonymous No.2538879]

>>2538804
Thanks, do I understand that you
>calculated the original LC reactance for 630m
>solved capacitance by using the capacitor reactance formula with Xc=127 Ohms and f=3.5MHz
>used the resulting C to solve L in 2pfL = 1/ (2pfC) ?

[Anonymous No.2538885]

>>2538870
>everything is subsumed by reddit or other shittier social media
True.
>>2538833
Checked and thanks.

[Anonymous No.2538888]

>>2538879
45 microHenrys at 450kHz is 127 ohms.

[Anonymous No.2538890]

>>2538888
Then 127 ohms reactance at 3600kHz is 5.6 microHenrys and 350 picofarads (close enough).

[Anonymous No.2538900]

>>2538890
This 350 picofarads includes the miller capacitance of the tube [(Cg-p) x gain] and this is why the oscillator frequency will shift with a change of load impedance. Higher C values in the resonant circuit mean less frequency shift.

[Anonymous No.2538909]

>>2538870
>updated resources
We had this already, the problem is that OP uses outdated pasta where the links to the FAQ are b0rken.

[Anonymous No.2538912]

>>2538900
>>2538888
>>2538890
Thanks, I know why I should have stuck with IT.
Nice quads.
>[(Cg-p) x gain]
That's capacitance grid to plate times gain, but I don't even know how to calculate gain of this simple oscillator.

[Anonymous No.2538914]

>>2538909
Have you got the links to the new FAQ?
You're right, preview 13 is 404'd.

[Anonymous No.2538920]

>>2538912
>I don't even know how to calculate gain of this simple oscillator.
Depends on a lot of things but the result is clear: It's going to be large enough to be most or all of that 350pF. 811A is a grounded grid amplifier tube not suited to be a grid driven oscillator above a few hundred kHz, if even that high.

[Anonymous No.2538921]

>>2538920
So for a 80m single-bander I should start out with a different tube more suited for a Hartley oscillator?
I'm not sure whether I should go for the 630m band then and leave the design as it is, or go look for examples with suitable tubes.

[Anonymous No.2538924]

>>2538921
>So for a 80m single-bander I should start out with a different tube more suited for a Hartley oscillator?
Either that or find a circuit for a grounded grid oscillator. I suppose this is possible though I don't recall ever seeing one.
HF grid driven oscillator tubes generally have Mu between 6 and 20 with 8 being the usual choice (type 10 or triode connected 6L6).

[Anonymous No.2538936]

>>2538924
Many of these things go beyond my current understanding. Thanks for your patience.
What about this as a project, a Tx/Rx using a sigle double triode?

[Anonymous No.2538940]

>>2538936
You could probably work your neighborhood with that. Transmitter design looks OK. Receiver very weak, not sure how it couples to the antenna.

[Anonymous No.2538942]

>>2538940
First thing I ever built was this circuit. Fortunately for me I didn't know how to couple to the antenna I had. Used a color TV chroma oscillator crystal 3579.545 kHz.

[Anonymous No.2538943]

>>2538942
What power supply did you use/build?

[Anonymous No.2538944]

>>2538943
Made with old, salvaged TV parts. Used up to 450 volts DC with 6L6GC, 6550 tubes. Learned about RF burns, heave electrical shocks and all kinds of other things kids are generally deprived of now.

[Anonymous No.2538946]

I know nothing about HF, but I play radio exclusively portable when out larping

What's the easiest, lightest, simplest to erect antenna setup for say, 20m?

[Anonymous No.2538948]

>>2538946
you don't need that height, it will be very difficult, 12-15m can be done with a glass fiber mast and a small cable, vertical or sloped

[Anonymous No.2538949]

>>2538946
Probably a half-wave dipole or end-fed quarter wave vertical with ground. The rig in 2538942 would probably do best with an end-fed half wave antenna.

[Anonymous No.2538967]

>>2538946
How about a random length wire and a tuner?

[Anonymous No.2538968]

>>2538946
This >>2538967
With a tuner just for listening you basically go
>set both Antenna and Transmitter caps to middle
>set Inductance for highest noise volume
>tune Antenna und Transmitter (in your case receiver) for highest volume
Some losses are to be considered through the tuner, but a long random length antenna can catch you any band

[Anonymous No.2539006]

>>2538914
I can only find Preview 13 prepackaged with some other documents:
https://files.catbox.moe/4ghken.zip

It will take time before I reach the machine where I got Preview 14.

[Anonymous No.2539038]

>>2539006
Thanks, I hope to remember it next OP.

[Anonymous No.2539055]

>>2538946
also, does output power matter on HF? Since I only go on 2m my current antenna setup and 25 watt radio let me hit every repeater I care to hit, but most HF rigs I see offer higher power- does HF actually need higher power or is it just a "why not" thing while they're designing the radio

[Anonymous No.2539080]

>>2537584
INDIA

[Anonymous No.2539185]

>>2539080
GUATEMALA

[Anonymous No.2539190]

>>2539055
Power matters on HF, more so on 80 meters than the others.

[Anonymous No.2539193]

Vertical vs horizontal end fed wire antenna?

[Anonymous No.2539228]

>>2539055
>does output power matter on HF
Yes. With 2M FM you're really not going over the horizon. With HF on the other hand, you're sending your signal up into the ionosphere with the goal of having it bounce off and come back down hundreds to thousands of miles away. Same reason they use SSB for voice rather than FM, and why Morse code is still popular to this day.

[Anonymous No.2539231]

Is it bad to wind coax around a fiberglass mast? Or does it not affect anything because it's fiberglass and not carbon fiber

[Anonymous No.2539291]

>>2539231
The only effect is the more turns around the mast your coax does the longer it needs to be.
For VHF/UHF you may want to consider that.

[Anonymous No.2539323]

>>2539291
Ignoring that factor, is there any harm in it? As in, if my coax happened to wrap around my fiberglass mast like pic related, would it negatively affect the radio or is it a non issue?

[Anonymous No.2539465]

>>2538921
You'll be fine with an 811A; Miller capacitance is less of a concern than it may seem at first glance. The input of the tube is tapped way down on the coil so the effects of Miller capacitance are greatly mitigated. It'll be a small fraction of the 350pF that inductor sees

[Anonymous No.2539477]

>>2539193
For non-DX, use the same polarization as the receiver.

[Anonymous No.2539482]

>>2539323
>is it a non issue?
It is. But more coax will put even more mechanical strain on that mastlet of yours.

[Anonymous No.2539484]

>>2539465
Do you think it will be negligible or should I get a ham to help me calculate the necessary capacitance to get away with it?

[Anonymous No.2539494]

>>2539484
There is no 'tapped down' with the Hartley, Cg-p is directly in parallel with the tank circuit.

[Anonymous No.2539591]

Can someone help me comprehend this?
I am looking to receive DMR. Seeing something strong in range 430Mhz. I am using CubicSDR. How do I decode it?
Not asking to spoonfeed but rather guide. Maybe some good articles?

[Anonymous No.2539650]

>>2539591
Not sure if that's a DMR signal, never looked for them on the waterfall.
You may need another software like DSD+ and feed your CubicSDR audio to it.
>source: search engine

[Anonymous No.2539697]

My yard behind our house backs up against an electrical substation. Will that cause enough interference that I shouldn't bother with amateur radio while still living here?

[Anonymous No.2539706]

>>2539484
It'll be negligible, about the same as the parasitic capacitance of the circuit itself and the self-capacitance of the coil that you won't be accounting for anyways.

>>2539494
A more careful reading of the book you posted refutes your own statement. Miller capacitance is seen at the input of the tube, effective capacitance at the grid is Cg-p*gain. The coil has a ground tap not far from the grid connection, say at the 20% point for, that provides, as an approximation, a factor of 25 reduction in input Miller capacitance as seen by the whole LC circuit. The half to a third mentioned in the book is a bit aggressive for feedback; you'll be eating up a lot of power in your grid leak resistor and grid current will be unnecessarily high. Even at a third, your effective reduction in the Miller capacitance as seen by the tank circuit will be about 9.

[Anonymous No.2539748]

>>2539697
Your Rx will likely be terrible, maybe less so on VHF and above. If you have an AM radio you can see if you get a lot of buzzing or other interference with that. If you do, HF will not be worth it. My fucking neighbors have chickens (on a city lot) and their heaters make 80 and 160 unusable.

[Anonymous No.2539802]

Hello, I'm Starting with KiwiSDR and bought a 10kHz-30MHz antenna
https://www.aliexpress.com/item/33048902765.html

I'm wondering why that area of the spectrum is heavy charged

[Anonymous No.2539804]

>>2539802
It can be anything, switching power supply, electrical motors, try turning everything off in your house but it can come from your neighbors

[Anonymous No.2539809]

>>2539804
Well, I put the antenna above the 3phase cable + its neutral below, running in front of my building.. I'm surprised it raises that much "red".

[Anonymous No.2539839]

>>2539802
Zoom out as far as you can to see if there is one single peak or band that saturates the front end. You may have to insert an attenuator to overcome the overload.
Once you have determined there us such a peak (for instance a nearby broadcasting station) you have to add a band stop filter tuned to that frequency.

And congrats on your KiwiSDR, I am thinking of buying one. My problem is that I am close to one of the laegest power distribution centres in te entire country.

[Anonymous No.2540070]

>>2539839
>Zoom out as far as you can to see if there is one single peak or band that saturates the front end.
Yes I did zoom right inside the dirty saturated area.
Here is the 10khz-30mhz spectrum.

[Anonymous No.2540217]

I added some fine tuning. This PLC smartgrid's communication doesn't look good for RF.

[Anonymous No.2540222]

>>2539809
These active antennas need a good ground, try to connect the gutter to the ground of the antenna.
They aren't effective in a high noise area, maybe consider a wire thrown over the window on the roof perpendicular to the electrical cable.

Are you in France ?

[Anonymous No.2540264]

>>2540070
That loks bad.
Is this mains powered or batteries? Tried ferrite cores around cables?

[Anonymous No.2540336]

talk me out of buying a ft-818

[Anonymous No.2540371]

>>2540336
they are not manufactured anymore, get one before it's too late

[Anonymous No.2540376]

>>2540371
ok

[Anonymous No.2540378]

How do I upgrade from chinkshit?

[Anonymous No.2540383]

And by upgrade I mean, I'd prefer some cheaper hardware that gives me more stuff to listen to. I don't think I can get shortwave on my baofeng so I'm missing out on that. I guess a tecsun 330 or something would be good?

[Anonymous No.2540384]

>>2540383
if you find a HAM HF rig for less than 200 $ you can use that for SW, a Tecsun something will get you on SW listening too. Price will be subject to SSB capability

[Anonymous No.2540387]

>>2540222
ok I will do those tips. I'm fluent with electricity and start to learn on Antennas. Thank you

>Are you in France ?
yes I'm in KRANKREICH

[Anonymous No.2540388]

>>2540387
If you are near Lyon it will be a pleasure to help you, I am a HAM and there's a bunch of stuff I don't use anymore

[Anonymous No.2540389]

>>2540384
Can you give an example of a ham hf rig? Doesn't need to be less than $200 just want to know what to look for as far as components or whatever. I'm new to this.

as an aside, I wanted to say thanks to whoever mentioned getting a abbree antenna for my tiny baofeng bff8. it's pretty hilarious to have a gigantic fucking antenna on this and I've gotten lots of laughs

[Anonymous No.2540391]

>>2540389
>ham hf rig
I am a yaesu guy so FT-450D, FT-900, FT-920, FT-817 if you want a small thing, ICOM IC-718, IC-735
Here is a list of discontinued HF radios :
https://www.universal-radio.com/catalog/hfdisc.html

[Anonymous No.2540392]

>>2540391
Probably obvious but how do you run an antenna on those? Coax outside to an antenna?

[Anonymous No.2540395]

>>2540392
yes, depending on the antenna you might want to have a balun : balanced - unbalanced
the coax is unbalanced, it is asymmetrical but a dipole antenna is symmetrical (balanced)

[Anonymous No.2540410]

>>2540388
I have a cousin inside the Dombes. Thank you for the help offering but I'm in western Brit.

I have a wonderful rooftop with an old unused 1940 concrete chimney that route an empty pipe near my "network room". I will use it to pass wires through and plans to experiment inserting such a device in my wall, to switch antennas:
https://www.youtube.com/watch?v=d1cvk4gXyMc

I think I will also route a ground wire to my garden to have such grounding:
http://www.carnets-tsf.fr/terre.html

[Anonymous No.2540424]

Playing with Fine Tuning above CENELEC-A frequencies reveals some nice patterns
from a hacking pov, Would it be possible to TX above that to make the signal running inside the 3phase cable totally unreadable by its ending's modem ?

[Anonymous No.2540560]

Any cons or problems with the ailunce hd1? Wanting to replace my uv5r and this seems like the best option for me

[Anonymous No.2540805]

>>2539185
GOLF

[Anonymous No.2540839]

Did a comparison between my cracked gt-5r w/Nagoya 320a and my new ft5dr w/diamond srhf 40a. Can barely tell the difference in clarity between the two in most cases, in fringe cases I seem to cut through a little better when it's fuzzy on the ft5dr. ft5dr has a much better microphone and speaker. so my voice sounds nicer. That's pretty much all the comparison I can make since the baofeng doesn't have any of the other features. I'm just gonna say what everyone is thinking. Between a $50 and a $500 radio (with attachments in price) If all you are going to do is simplex talking and shitting around with your friends in a 10 mile radius just stick with a baofeng and spend the extra cash on making a baofeng repeater to extend your range if you need it.

[Anonymous No.2541148]

Seems KiwiSDR is also coming to an end:
https://forum.kiwisdr.com/index.php?p=/discussion/1536/kiwisdr-production-status-and-availability/p5

[Anonymous No.2541203]

>>2531523
I like an antenna to flex on the poorfags

[Anonymous No.2541286]

>>2541203
>I like throwing money down the toilet over nothing

[Anonymous No.2541326]

Has anyone had to deal with that mudbutt radio guy who's always on CB 19?

[Anonymous No.2541384]

So I want to make a GPS tracker for my dogs which send data using radio. What frequencies and power is required to be able to send small packets of data irregularly over 20 km using small device on a dogs neck?

[Anonymous No.2541386]

>>2541203
Nothing flexes like a Wullenweber. Nothing.

[Anonymous No.2541407]

>>2531523
Only poors engage in such dirty work like climbing trees.

[Anonymous No.2541626]

>>2536441
>FTDX 9000
Rumours are Yaesu outsources the design of new rigs. That could explain wy we haven't seen more rigs in this form factor.

[Anonymous No.2541629]

>>2531523
What length of wire do you use for a 9:1 unun? Also what about the counterpoise?

[Anonymous No.2541688]

>>2541629
If you really want to use that shitty antenna, 84 feet will get you on most bands, but will be deaf on several bands based on my own experience. For counterpoise: 17 feet. Some sources say as long as possible works since you are reliant on the tuner for matching. I used the following link when I was starting to get in hf and get on the air with a random wire: https://udel.edu/~mm/ham/randomWire/

[Anonymous No.2541899]

Is there a standard name for this type of connector, or keyword I can use to find everything that has it?
It's basically a reverse version of what baomemes use.

[Anonymous No.2542084]

>>2541899
midland connector?

[Anonymous No.2542118]

>>2541899
If you know the brand of radios it is made for, you can search for : (the brand) microphone cable
I never saw these connectors by themselves, always with microphone and earplugs or other accessories

[Anonymous No.2542245]

>>2541899
Kenwood programming cable?

[Anonymous No.2542340]

>>2539591
Start here
https://www.sigidwiki.com/wiki/Signal_Identification_Guide

[Anonymous No.2542341]

>>2539697
Move to West Virginia:
https://en.wikipedia.org/wiki/Radio_quiet_zone

[Anonymous No.2542455]

Do people chat om cw, or is it just used to make contacts ans leave?
I consider it very boring if it is just about making contacts, it would be more fun even if its just short semtences like "am in forest, comfy hammock" or something instead of just exhanging call signs and signal strength.
Whether I learn CW or not depends on this question

[Anonymous No.2542460]

>>2542455
It's rare, but conversations do happen. It's mostly now-a-days used in contesting and to get Dx awards since it's easier due to hardly anyone using it.

[Anonymous No.2542467]

>>2542460
So if I would send a longer message, people would just get annoyed and answer in a very short fashion? Or is it just less common, but possible to have small conversations?
>hardly anyone using it
So would you say it takes long to get contacts, especially with a cheap qrp setup? From watching some videos, I got the impression that cw is still reasonably active and I have some patience, but waiting an hour for someone replying to my cq would be annoying. I live in central europe, not sure how it differs across the continents

[Anonymous No.2542487]

>>2542455
It depends. If the other station is up to it and conditions are good, ragchewing can be fun.
I was on a SOTA trip and talked over 20 minutes with some guy who told me he was camping somewhere and enjoying CW while sitting there.
You can even do nets if everyone is good at operating technique and have some fun in a group.

[Anonymous No.2542524]

>>2541384
Anyone?

[Anonymous No.2542528]

>>2542524
You are probably looking for this:
http://www.aprs.net/

[Anonymous No.2542765]

>>2529822
https://youtu.be/szZlPL2h534 what do you guys think of this concept? It's interesting but do you see it getting any significant adoption?

[Anonymous No.2543015]

[Anonymous No.2543150]

>>2536366
I'm the one doing that massive flow chart, kinda ran out of ideas what else to add

[Anonymous No.2543154]

>>2540805
ECHO

[Anonymous No.2543191]

Bros I want to hook up a radio in my car but I can't see where the fuck I can even fit a drill in my engine bay without removing parts, let alone where on the firewall to drill through

[Anonymous No.2543210]

>>2543191
Cool story. Why are you drilling in your engine bay?

[Anonymous No.2543231]

>>2530570
>CB is all Basketball-Americans running KW amps
How?!

[Anonymous No.2543235]

>>2531634
What is AIR?

[Anonymous No.2543236]

>>2532311
>Also what kind of army abandons cars ?
cartels, favelas

[Anonymous No.2543240]

>>2532892
>VoLTE icon is blurry
wtf

[Anonymous No.2543274]

>>2543235
Air trafic : planes and ground control, mode is usually AM on that band, in HF (long distance navigation, weather) it's USB

[Anonymous No.2543535]

>>2542765
It doesn't look bad at all, it's still very similar to a mailbox node though like with packet radio.
But the JS8CALL protocol would make it nice for QRP and long distance.

[Anonymous No.2543551]

>>2543240
jpg compression

[Anonymous No.2543659]

>>2542765
There used to be a HF service where hams on ships could radio in their positions and status, which is close to what you ask for. Not sure if it operates anymore.

[Anonymous No.2543918]

>seventy three's

[Anonymous No.2544028]

Radars are around hundreds year old and the technology used in them is really simple. Yet I can't find a single video on YouTube, where the guy just makes a working radar from scratch. I've seen people make explosives, powerful lasers, robots, whole computers out of simple passive components. And no radars. Why? I want to make a fucking radar on my drone.

[Anonymous No.2544122]

>>2544028
here. it's not making one but explains the whole thing pretty well https://www.youtube.com/watch?v=Sgdxd2F_CFs

[Anonymous No.2544124]

>>2544122
>it's not making one
Yep.

[Anonymous No.2544129]

>>2544028
Start with an ultrasonic radar (continuous directive emission, measuring return ?), then laser range meter (a PIC running at 10 MHz is fast enough to measure at 5-10m and above), then radio maybe ?
I don't think people are confortable with sending burst of a hundreds of W of high frequency signals on things they don't own like planes, cars in bands maybe used for something else.
Maybe try to use a HAM band in the 10s of GHz, you'll be far, far above the power limit but at least you'll not receive the visit of a RC-135 Rivet Joint ?

[Anonymous No.2544146]

>>2544129
>muh power limit
>muh allowed bands
kill yourself

[Anonymous No.2544151]

>>2544129
At first
>Start with an ultrasonic radar
and then suddenly
>use a HAM band in the 10s of GHz

My man... How can I do the latter? Don't you see there's a huge gap here? Where is the tutorials to do so and why nobody did it in 2.4 and 5 ghz?

[Anonymous No.2544156]

>>2544151
very simple anon.
Amplification is difficult. Clean amplification is even more difficult.
Clean amplification at the microwave frequencies is even harder.
Not to mention that anything in the Ghz range will shit itself if your traces are wider then expected, or squiggle then expected.

Also equipment capable of measuring the the GHz with any accuracy will set you back a small family home.

On top of that the brains that can build radar from trash from the garage, don't have the time and energy to waste on youtube tutorials

[Anonymous No.2544169]

>>2544156
I am sorry, but I have to call it bullshit. People hundreds years ago did it when they maybe had electricity in half of the houses and knew barely anything about the theory behind electromagnetism.
I can agree about high frequencies, but I didn't say I need necessarily high frequencies in my radar. Anything would work for me and all this looks almost like a conspiracy.

[Anonymous No.2544174]

>>2544169
>hundred years
Not hundreds, my mistake.

[Anonymous No.2544184]

>>2544169
Yeah just do one at lower frequency. No need for expensive equipment.
Basically it's just like an antenna and a receiver. Send a signal, filter the leakage, measure delay for distance, measure frequency change for relative speed.
Disregard all gigahertzfaggotry and FCC shills.

[Anonymous No.2544246]

>>2544169
alright, well then here's a physics problem for you.
The longer your wave length, the larger the radar crosscutting needed to get a a bounce back.
You also need big brain filtering.

I'm not saying it's impossible, im just saying it's outside the skill set of your average youtuber. You can make a DUGA-3 Doppler radar with nothing but two antennas and some clever math.

Hell you could build a passive radar with an SDR dongle and some clever math.

But again, anybody with the skill and time to build something like that has better things to do with it then youtube. case in point:
https://ieeexplore.ieee.org/abstract/document/5960663

[Anonymous No.2544359]

>>2530680
It's pretty good for mobile radio in the mountains. I don't care how powerful your handheld is, because it's not blasting through a whole mountain.

[Anonymous No.2544360]

I had considered getting into HAM, but after studying for and getting my tech's license, I decided all the protocol and fiddling wasn't worth my time to talk to old strangers. Now I just use it to cover my ass for FPV output.

[Anonymous No.2544381]

>>2544146
>>2544146
Yep, you'll really stick it to the man if you disregard all laws. Just make sure to do it around an airport, military base, or federal buildings.

[Anonymous No.2544555]

>>2544381
This. And use a Baofeng UV5R with one of those Baofeng HT amplifiers.

[Anonymous No.2544850]

Newbie diy question. I made a dipole from 1.5mm stainless rods. Will aluminium 20mm hollow pipes do a better job at receiving/sending a signal? Or is it only better for off-center frequencies.

[Anonymous No.2544859]

>>2544028
>>2544146
>hurr, why don't hobbyists post videos of themselves committing violations that can result in the government stripping them of their privileges to legally enjoy their hobby?
Where do these retards come from?

[Anonymous No.2544870]

>>2544381
>>2544859
Funny how much this makes the HAMcuck seethe.

[Anonymous No.2545218]

nu >>2545217
QSY >>2545217
SWITCH CHANNELS >>2545217

[Anonymous No.2545496]

>>2541629
I use 31' on mine, 9.1 unun. There are a few "magic" lengths that play nice with most bands.I can tune 40m -10m just fine. I also get out just fine. I have no use for 80m. I don't use a counterpoise, just long feedline and MFJ line isolator.

[Anonymous No.2545783]

just bought some uv-5rs, put some weather channels in, gmrs frequencies, what else should I program this radio to do?