goebish

github still doesn't allow sending private messages ... go to rcgroups.com and send a private message to hpnuts (Pascal)

If I remember well it's vbat*10, ie 42 for 4.2V, but this has to be checked.

Yes, that's a CX10 sub protocol, I'll add it to my todo list ;)

I don't remember, just try and add some serial logging if required ;)

Also, keep in mind telemetry range is very short as the H8 mini, B03 and other "Silverizable" quads do not have a PA.

RTL-SDR (RTL2832U) goes only up to 1.75 GHz, that's a cheap and nice tool to start experimenting with SDR (ADS-B ;)) but not enough for 2.4 GHz

The JJRC H20H is using yet another protocol, I need more captures to thoroughly understand it: http://www.deviationtx.com/forum/protocol-development/4724-jjrc-h20-hex-quad?start=180#56649

Same as B03, none of the supported model has a PA onboard.

Actually you can use a RTL-SDR for 2.4 GHz, by using a down converter: https://www.rtl-sdr.com/tag/2-4-ghz/ Not sure that's worth it. Also, decoding signals from an unknown chip is not straightforward.

No hurry, the H20H isn't on the top of my list yet, I want to add the CX10D and CX10WD first.