WeatheredScientist <[email protected]> writes: > What I've come to realize is that I have to intercept the radio signal from > the ISS in order to do what I want with weewx. > > To that end I've purchased an RTL-SDR v3 dongle, which may or may not be > DOA (TBD!). But the idea is to use that as my receiver, then decode with > the rtldavis driver for weewx.
My advice is to build the latest rtl_433 from git and listen on 433.92, 315, and 915, or something else depending on what country you are in (and hence what the allowed frequencies are). Also check which librtlsdr you have, but with a v3 (vs v4) it should be ok. You should see lots of things decoded, that you didn't know existed, like temperature sensors, car TPMS and more. Only when you can decode random other stuff should you try to listen to your ISS. The Davis RF protocol is vastly more complicated than everything else, and needs synchronization, and you need to select the region-specific hopping patterns. I think it takes a while to figure out where in the cycle the pattern is and can then follow it. I haven't done this; I just know there be dragons. (You could also consider https://www.meteobridge.com/wiki/index.php?title=Meteobridge_PRO2 which seems to mostly work but has awkward interfaces if what you want is weewx. It's also real money compared to a RTL-SDR dongle.) -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/rmiwlx26fve.fsf%40s1.lexort.com.
