Yes! This is right in line with what I was thinking. That VHF/UHF board looks like the perfect base design....except that specific product appears to be mainly for packet operations (full disclosure, I just skimmed the page, they do mention single channel voice, my guess is NBFM).
But yes something like that! But add in the open source/open hw angle (for kit enthusiasts) and SSB capabilities. The Arduino control feature sounds like the perfect opportunity for a Bluetooth interface to a phone for the Doppler control. I have visions of a cheap 'add-on' board with QLED or LCDs and rotary encoders as well for manual control if desired if doing our own version of this.
I'm even seeing key words that are resonating with me (hihi) like Qorvo PAs/LNAs (also the PGA-103 from miniciruits for LNA), exactly to the type of devices I would look at if starting from scratch. Plethora of devices on the market for this sort of thing.
Good stuff.
-Zach, KJ4QLP
--
Research Associate
Aerospace & Ocean Systems Lab
Ted & Karyn Hume Center for National Security & Technology
Virginia Polytechnic Institute & State University
Work Phone: 540-231-4174
Cell Phone: 540-808-6305
-----Original Message-----
From: AMSAT-BB
amsat-bb-bounces@amsat.org On Behalf Of Stephen DeVience via AMSAT-BB
Sent: Friday, May 8, 2020 2:40 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] FM vs Linear Transponders
I'm thinking about some kind of hardware/software combination kind of like
this company's products:
https://www.hobbypcb.com/
I have two of their HF and VHF/UHF radios. All frequency control is done
via usb and an arduino nano, which I'm sure can be adapted to a phone app.
There are a lot of plans for simple SSB transceivers that could probably be
combined with that.
I like SDRs too, but then you probably need at least a laptop to get enough
computing power to do a good job.
I'm glad you're thinking about this too.
-Stephen, N8URE
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