From Hentschel
* radios:
** 978 UAT: NESDR Nano2 978, 29ppm (stx:978:29)
** 1090 ES: NESDR Nano2 1090, 26ppm 28ppm (stx:1090:2628)
* change SDR id string for use with stratux:
** stop stratux service
systemctl stop stratux
:* find radion radio device number
sdrs
:* write eeprom in radio
rtl_eeprom -d 0 -s <String>:<Freq>:<PPM>
:: string format see above
==== AHRS board ====
* schematics here: https://github.com/stratux/ahrs/blob/master/AHRS.pdf
==== /etc/network/interfaces ====
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