Hi everybody,
I've been helping out with the development of VHF and up FreeDV and
the minimalist VHF SDR. I've gotten to the point, on the analog side
of things, that it seems appropriate to get a board made. What I've
designed is a VHF frontend for further experimentation. It's based
heavily on the VHF section of the DSP-10 transceiver, a DSP based
radio described in the links below. Before I buy parts and send the
board off for fabrication, I'd like someone with a little more radio
design experience look over the schematic and maybe PCB layout. I'm
using Kicad to design this. As this board is just a stepping stone,
I'm going to keep it out of the Freetel SVN repo, at least for now.
Schematic for the front end:
https://github.com/baobrien/vhf-radio/blob/master/exp-1/exp-1.pdf
Github repo: https://github.com/baobrien/vhf-radio
DSP-10 Part 1:
http://www.arrl.org/files/file/Technology/tis/info/pdf/9909033.pdf
DSP-10 Part 2:
http://www.arrl.org/files/file/Technology/tis/info/pdf/9910034.pdf
DSP-10 Part 3:
http://www.arrl.org/files/file/Technology/tis/info/pdf/9911042.pdf
Thanks,
Brady O'Brien KC9TPA
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