Hi David;
The subject (victim) is a Cobra 29LTD Classic. I built up a board with an SI5351, RP2040 Zero, OLED, and a rotary encoder to replace the PLL. The control program is written in MicroPython, which has been fantastic for projects like this. The radio will be used for 29 MHz AM, although it has good sensitivity lower in the 10m band as well. May have to get the third channel of the SI5351 to generate 455 KHz to serve as a BFO so that it can receive SSB and CW.
The circuit is really begging for a simple PC Board to be designed. Also, once all the hardware is in place, it's easy to add more functionality to support scanning, memories, etc.
10 meters has been hot lately and there's DX in the AM segment, A project like this would be great for clubs that might want to have a 10m AM Simplex channel set up for local chats.?
I still have to get the OLED installed --BEHIND-- the front panel. (hi)?
73; Steve, N3SB
