An I/O Processor (IOP) for the uBITX V5... a Teensy 3.2 microcontroller with Audio Adapter Shield, housed within the uBITX enclosure, to provide TX and RX Digital Signal Processing (as well as a single USB interface to the computer).
Raduino. It was intended to be more extensive, but I had to roll some of it back. Mostly just sharing of enums/types currently. Currently in "factory calibration" mode. Comms (CAT) in normal mode needs to be re-checked. Added two tone test mode, with two new modes available via Raduino menu: TTL and TTU. Using test mode, I'm thinking that the proper TX output calibration, assuming a full-scale 700/1900 test tone, is either: 0.061 (which I believe gives a 25 mV RMS output), or ~0.100 (which is just before the audio starts to distort, in terms of visible harmonics in the spectrum at the 45 MHz IF. |
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iopcomm | ||
ubitx_iop |