/diy/ - Do It Yourself

>>1447817
>CRT One
That's a cheap and tiny multi-norm AM/FM CB radio sold mainly in the EU. It doesn't offer duck-talk (a.k.a. SSB) but 40 AM and up to 80 FM channels instead. In the US, the use of FM is still ruled out by the FCC.
>>1448159
>No ATU
No typical CB radio has that, because it is not necessary. It is almost impossible to accidentally damage the PA of modern CB radios even if you transmit with disconnected antenna or shorted output. The one just mentioned (like many of its kind) has a well cooled 100V 12A QFET as a PA transistor that can easily handle the reflected power. The SWR hysteria on exhibition here is largely based on ignorance.