Development of the transceiver Minion SDR

Minion SDR Transceiver


Started a joint development with UT5QBC (Yuri). We decided to make a twin "Minion SDR" in terms of its size and functionality will inherit CCI "Minion Mini" well, only SDR.
Radio components used what is and what can be bought in Ukraine.
Controller STM32F407VGT6, two codecs CS4272 (long solved one or two, settled on two because it's easier to switch signals).
Synthesizer si5351 control mixer on FST3253. At low frequency all pass capacitors and capacitors LPF polypropylene film.
Two encoders, one for frequency control, a second volume control and transceiver settings.







































































The first sound of the Minion SDR transceiver


A lot of work on this device, positive progress.
Test reception, a lot of course not audibly written on the microphone of the smartphone.





Test CW key (iambic A) Minion SDR.



Minion SDR. Test TX.

The first tests for the transfer. Yuri (UR5FYG) is not the best place for noise, urban obstacles at S9 points.





Minion SDR. First test spectrum.

Have not decided yet whether the spectrum on this screen.
I decided to play and see what happens.





Minion SDR. Test RX CW.



Minion SDR. Мій перший тест на передачу.




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