[amsat-bb] FM vs Linear Transponders

[Peter Goodhall (2M0SQL)]

Zach,

Not sure what you think needs doing, there's already a pisdr image
available setup for most common SDRs on the market and most of the
common software tools see https://pisdr.luigifreitas.me

Think only improvements the image needs perhaps is the Fox decoder
added but its pretty much ready to use.

Peter, 2M0SQL

On Fri, 8 May 2020 at 19:58, Zach Metzinger via AMSAT-BB
<amsat-bb at amsat.org> wrote:
>
> On 05/08/20 13:39, Stephen DeVience via AMSAT-BB wrote:
> > I like SDRs too, but then you probably need at least a laptop to get enough
> > computing power to do a good job.
>
> This is a bit of a misconception. Single-board computers (SBCs) have now
> become ridiculously fast:
>
> "The Raspberry Pi 2 Model B is approximately equivalent to an Athlon
> Thunderbird running at 1.1GHz; again, it has the much higher-quality
> graphics, which come from using the same GPU as previous models. The
> Raspberry Pi 3 Model B is around twice as fast as the Raspberry Pi 2
> Model B, depending on the benchmarks chosen."
>
> (from https://www.raspberrypi.org/documentation/faqs/#pi-performance)
>
> The Pi 4 is super fast, but also needs a heatsink...
>
> A display can be had here:
>
> https://www.sparkfun.com/products/14776
>
> Here's a demo of someone putting it all together:
>
> https://gqrx.dk/blog/pi-sdr-raspberry-pi-3-7-touchscreen-rtl-sdr-gqrx
>
> Here's where we need a volunteer to put this onto a SD card for easy use
> by those not familiar with Linux, etc.
>
> My plate is full, but I'd be glad to test it out and give feedback.
>
> --- Zach
> N0ZGO
>
> (P.S.: ".. only thorough the sorrows of men .." -- some really heavy
> stuff right there.)
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