"Leon Fisk" wrote in message ...

On Fri, 23 Oct 2020 12:41:35 -0700
pyotr filipivich wrote:

snip
I think these are radio remotes, as the instructions mention
"antenna" in the receiver, so not sure what kind of app might be
available. Anyway, any suggestions for how to test if a remote is
sending a signal?

These are kinda fun to play with:

https://www.amazon.com/RTL-SDR-Blog-...dp/B011HVUEME/

You would have to install some software too but what's out there for
free is quite usable. You should be able to "see" if your remote was
outputting any radio signal, after you get done playing around
with it ;-)

--
Leon Fisk
Grand Rapids MI

======================================

I like this one:
https://www.sdrplay.com/new-reviews-...1a-and-rspduo/

The spectrum analyzer app lacks the 2 GHz sweep range of my vintage HP but
has many more useful features. The spectrum + waterfall display on a large
widescreen monitor is spectacular. The waterfall captures short pulses.
https://swling.com/blog/tag/rsp1a/