Tinypico Radio Part 8 - FInal Receiver with 8 Pole Cheby
This is the final video in the receiver side. I'll move on in the next videos to a phasing SSB exciter. I ended up with an 8 pole Chebyshev filter the design files for use in the filter design tool https://tools.analog.com/en/filterwizard/ are here:
In this video I have the Tiny mounted to a PCB which I created. I have the kicad project files here:
https://github.com/thaaraak/Tinypico-Radio/tree/master/kicad
I have decided to move away from using Eagle and onto Kicad. That change took a bit a pain!
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https://www.youtube.com/watch?v=wyRaee28-6Y
In this video I install the AD8307 logarithmic amplifier. If you want to skip the Hot Air gun work go to approx 09:10.
The board I made is on github at
https://github.com/thaaraak/QST-Watt-Meter-
I have an Eagle schematic and board and also a PDF of the board. Dont forget to print out mirrored.
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https://www.youtube.com/watch?v=WEw7npUQ6WQ
Not much talking and no building in this one. There is a contest this weekend and I thought it would be good to get the Magnis on the air and listen to some QSOs
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https://www.youtube.com/watch?v=vuxN84leioI
In this video we put together the phase shift network as a part of the Quadrature Sampling encoder. Then test and confirm operation
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https://www.youtube.com/watch?v=pODCoxg6Dec
In this video I pull together the USB interface.
**** Note **** Going through the device setup I don't think my setup is correct. There should be a driver underneath the sound devices and there isn't. Also the device name should be "Multus SDR Controil" not "Magnis". I am not sure but it could be because the circuitry on the audio side of the PCM3060 isn't complete. More to come.
Zadig
https://zadig.akeo.ie/
Config Softrock
https://pe0fko.nl/CFGSR/
0:00 Intro
0:52 The USB section of the PCB
1:23 A close up of the PTR ESD protection diode
2:03 USB circuitry installed
2:32 Initial tests
3:08 Testing the USB connection on the laptop
4:23 Setup on windows
6:11 Using the Config Softrock software to change the LO frequency
7:25 LO waveforms on the oscilloscope
8:12 Zadig (I think the device is setup incorrectly here)
8:53 Wrap up
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https://www.youtube.com/watch?v=9sZSJ9BTql0