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Schematic attached. There is big chance, that PIC didn't survive.

Snake oil was never cheap.

No SSB on TX anywhere.

400+ $ for chickenbander is a rip off :)

It can, no noticeable profit. Just complication. Antenna built based on your idea will be GP for 10.4 MHz. That how it looks on 27:

Metal roof skew antenna pattern and affect it's performance. In bad way. Mike

No. It is 1/4 GP antenna. That's all. Lightweight means fragile. Not good for windy areas. Mike

I use electric fence as antenna with excellent results, but it doesn't make it decent antenna. Why Antron 99 (Imax2000) is crap was elaborated on that forum with measurements and EzNec simulations. No fairy tales, just ruthless physics. Mike

There are 2 issues you need to deal with. 1. Low antenna height. 30ft is nothing regarding long communication range on ground wave. 2. Crap antenna. Antron 99 is pure junk. Get decent aluminium vertical and put it higher. Directional antenna for local talk will be pain. 30mi is easy-peasy. I...

In your amp flip switches to TX and ON and short PTT socket. Is it going to TX?

https://www.rigpix.com/poweramps/linearampuk_ranger811h.htm Connect ALC, PTT and you are good. Mike

It is because it is AM :) On Frequency Modulation no chance to happen.

Check cable connecting that box with radio

What is best receive?

No. It is biased amp. Mike

Does it squeak on dummy load or not?

Simple solution. Get 2x 1nF (102) ceramic capacitor. Put one across electret capsule and the other between modulation output and ground. Mike

Perfect SWR means only that antenna match your transmitter. That's all. Get dummy load. It is basic gear for radio testing. Mike

Test on dummy load. For me it looks like CMC issue. Mike

Here they sell/buy on facebook CB related groups