OK, so my first PCB design is complete. This is the antenna switch / routing PCB. It includes:
- Antenna / aux receiver inputs, similar to HPSDR Alex;
- VSWR bridge and buffer
- Signal sampler for Puresignal
- 10/20dB switched attenuators for RX1 and RX2
- Arduino interface to control relays, external filters and a heatsink fan
This will give similar capabilities to the Alex unit, but with external filters. Also it selects a signal path for the second receiver input. While this is being manufactured I will write the Arduino code. That will provide a debug/test interface, but it will be used operationally too.
