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2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself


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1691374 No.1691374 [Reply] [Original]

Do you need a license to use radio?
I mean who's stopping me from buying a class D amp and talking over everybody?

>> No.1691391

>>1691374
>Do you need a license to use radio?
Yes, depending on frequency and power output.
>Who's stopping me?
The FCC.

>> No.1691427

>>1691374
It's not that hard to locate where radio signals are coming from. If you want to see how quickly they can do it feel to test out how much the military would enjoy you going on their channels.

>> No.1691436

>>1691374
Do not underestimate how protective of their bands hams are. They often assist police and fire when some kid with a Bao starts talking on public safety bands so the cops often return the favor when someone is QRMing ham bands.

A pseudo-Doppler triangulation set can triangulate you in a matter of seconds.

>> No.1691525

>>1691436
I always knew that ham are fucking scumbags.

>> No.1691572

>>1691525
No. They're usually just aspies with low social iq. And I mean low compared to other aspies, not normal folks.

>> No.1691597

>>1691525
hams eat the fccs shit and thank them for the opportunity

>> No.1691639

What's the point of ham if you can't send encrypted messages with it? It would be super useful to creating personal networks, but nope.

>> No.1691674

>>1691597
>>1691572
I have stupid question. Do airplane pilots get FCC license, or they shitpost just kuz they airbus drivers and sheit?
I have an idea.

>> No.1691678

>>1691674
No, they don't need one because it's dual licensed. I know that a private pilot traveling internationally needs to get some silly card from the FCC, but they don't actually take a test or get licensed.

>> No.1691698

>>1691436
The local ham club plays hide and seek, one goes and broadcasts from some random location and the others find him. Guess it is fairly tricky in these parts due to the hilly terrain. Friends dad used to do it. They also do hunt down and report those that broadcast illegally, playing hide and seek is just practice for when they have someone to hunt down.

>> No.1691741

>>1691436
fucking ham faggots

anyone want to form a ham trolling network with class D amp on their cars that relays voice message from 4G just to shit on licensed ham operators? The thing connects to OBD port and only switches on randomly when the car is above 30mph.

Try triangulating that.

>> No.1691743

>>1691374
>Do you need a license to use radio?
I've been operating my car's FM radio for 20+ years and have yet to get licensed.
Sometimes I operate while simultaneously operating my vehicle. Sometimes I even switch to AM.
COME AND GET ME, FCC!!!!!!!

>> No.1691746

>>1691741
I know better solution. My electric scooter close to their house. Shit blocks FM radio, so it is good.

>> No.1691986

>>1691743
we got a bad arse over here!

>> No.1692017

>>1691698

ARDF is fun as shit.

Around here FCC will roll up on you within an hour of unlicensed transmission on damn near any band.

>> No.1692019

>>1691374
lol dude no no no no you dont

i usually wait til the sunday meetup on the local repeater tower to start transmitting my burps and farts over my handheld baofeng. at first it was really funny as these idiots try to explain how interrupting people is bad etiquette. then they start asking for some kind of numbers implying i would even give them if i had them

then they just ignore it but they cant because they have to repeat themselves to be heard over my burp noises. yea dude its really hard to get caught if you are in a densely populated area with a hidden antenna

>> No.1692029

>>1691639
Send your call sign in the clear and everything else encrypted. If challenged just say you're using an experimental encoding. Experimentation is one of the main justifications for Amateur Radio.

>> No.1692058

>>1691698
>playing hide and seek is just practice for when they have someone to hunt down.
what is this, the promised neverland?

>> No.1692060

>>1691374
>Do you need a license to use radio?
Depends on where you are.
In the UK you need a license to operate a TV.
It's issued by the BBC.
>brits suck bbc...

>> No.1692423

>>1691741
I want to drive around with my 2m transceiver and play sounds of dudes getting pounded in the ass on the repeaters.
How would they find me?

>> No.1692770

>>1692423
I don't know, but I recommend 121.5 MHz.
Bonus points for calling pilots bus drivers.

>> No.1692783

>>1691374
what's up with CB users and those echo mics?

>> No.1692827

>>1692783
>echo mics
Make you sound like God.

I used a 100W amp to drive two 1000W amps connected to separate antennas.
Was next to the freeway listening to all the trucker chatter. I keyed down on CH19 with my echo mike and said,"Everone be quiet for a moment."

Dead silence. After a minute, one voice came on and asked,"A-a-are you God?"

I didn't answer and after a bit the chatter started picking back up - mostly wondering who, what, and where that came from.

>> No.1692847
File: 861 KB, 1600x900, how-an-instrument-landing-system-ils-works-1518440423.jpg [View same] [iqdb] [saucenao] [google]
1692847

>>1691374
Make sure to deploy your powerful amplifier+ transmitter near airport ILS localizer and glideslope antennas. Tune them to transmit between 108MHz and 117.5MHz, preferably tuned to the exact frequency of the ILS for the runway you're deploying them near.

For best effect use your transmitter a lot during IMC, particularly on days where visibility is near zero or in heavy precipitation with strong crosswinds.

>> No.1692853
File: 377 KB, 900x600, D-VOR_PEK.jpg [View same] [iqdb] [saucenao] [google]
1692853

>>1692847
This trick also works with VORs, same frequency range as ILS, 108MHz to 117.5MHz though from 108MHz to 111.95MHz the 0.1MHz digit is always even for VOR and odd for ILS. Worth noting.

For fun with ILS use a directional antenna and point the strongest lobe in the direction of the glideslope as best you can.
For fun with VOR be within a 1-3NM of a station and use a non-directional antenna and point it straight up, Transmit at as high a power as possible.

You can have fun with NDBs too but the frequency range is different 530kHz to 1700kHz, MF. Use non-directional antenna like with VOR and point skywards.

You can also have fun with TACAN. 960MHz to 1215MHz, UHF. Use a non-directional antenna pointed skywards.

ILS and TACAN will probably generate the most luls since they're mostly used by commercial and military aviation.

VOR/NDB are older systems mostly used by private pilots and even then a lot of that has been replaced by GPS. luls potential is low.

Good luck OP. Don't get caught, but have lube anyway just in case you do.

>> No.1693783

>>1692847
This shit gets you drone striked, doesn't it?

>> No.1693829

>>1693783
It's the kind of shit that gets you thrown in prison and never heard from again.

>> No.1693830

>>1692853
Shut the fuck up, Mohammed.

>> No.1693838

>>1692847
dont do this, it makes chlorine gas

>> No.1693846

>>1691639
The "No Encryption" rule is mainly to keep businesses from trying to abuse the ham bands, as I understand.
That said, encryption isn't totally 100% illegal.
Nobody gives D-STAR or PACTOR any legal shit, despite the fact that it's not exactly an unencrypted communication scheme.

>> No.1693849

>>1693846
I guess my thing is that if I had a ham station, I'd like to set it up to use as a personal data network for myself. Maybe forwarding my home internet connection or collecting data around my property. Sending all this data without encryption is just silly to me, but it's personal and decidedly amature. I guess the "solution" is to use different frequencies.

>> No.1693859
File: 9 KB, 225x227, 1541456334335s.jpg [View same] [iqdb] [saucenao] [google]
1693859

no you can do radio wherever, however whenever

https://www.youtube.com/watch?v=95sDeTrSI_g

>> No.1693904

>>1693849
Yeah. If you want to do that, use the ISM bands.

>> No.1693985

Clearly you never watched

https://youtu.be/xLDehtTqyig

>> No.1693995

Is there a way to determine why someone's vanity call sign was cancelled? Some Muslim had his 1x3 cancelled in under three months but the fcc call sign database doesn't list a reason.

>> No.1694981

>>1691374
Sure just don't do it from your house, and they won't find you

>> No.1696240

>>1691741
There are so many ways to troll hams it isn't even funny. Imagine putting a massive amp in the drop ceiling of an unused office building and connecting to it via burner phones.

>> No.1696273

>>1693995
>Muslim 1x3
was it J1HAD or something?

>> No.1696276

>>1692029
Could also send steg images over SSTV maybe?

>> No.1696478

>>1692017
stay mobile

>> No.1696617

>>1696276
SSTV is analog, and pretty lossy depending on the mode used and interference.
You'd wind up with a super low bitrate, like on the order of 10 to 30 bits per minute, maybe more if you're clever.

>> No.1696640

>>1691741
I would subsribe and give you shekels

Pissing off boomers would be epic

>> No.1696784

>>1692019
You sound underage. Fuck off with your ebyn trolls.

>> No.1698311

>>1691374
If you want to shit out data at under 1kHz, that shit's unlicensed so go for it. But if you run into one of the time signal bands you might get into trouble.

Anyone know if you can transmit VLF/ELF using power lines as your antenna? Or just using them to transmit information through the wires themselves; so other people on the same grid could receive the data. All you'd need is a (notch) filter to avoid the main 50/60Hz, and ensure you're operating at a frequency that's enough out of the range of the filter but also not so far that it's filtered out by transformers or other natural impedances. I'm thinking 1kHz would be easy enough with a ~3rd order passive low-pass.