great thanks to Dani, EA4GPZ for new gr-satellite decoder :-)
The content of the GNSS part of the beacon message consists of a GPRMC NMEA 0183 message with the format given below using an example:
$GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*
The telemetry portion of the beacon contains a comma-separated list of text values of selected housekeeping parameters. The parameters values are already calibrated to SI units and only required minimal conversion or interpretation:
$HK,0x05A2008C6510,3.112,773,9,-82,-32258,0xFC*
2018-12-30 15:58:29: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A2008C6510,3.112,773,9,-82,-32258,0xFC* 2018-12-30 16:00:29: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A201048E86,3.113,773,8,-79,-30773,0xFC* 2018-12-30 16:03:30: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A201B90007,3.111,771,7,-81,32388,0xFC* 2018-12-30 16:06:45: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A2161DD42E,3.113,775,11,-74,-31882,0xFC* 2018-12-30 16:09:09: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A216971738,3.111,773,10,-77,-32196,0xFC* 2018-12-30 16:10:33: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A216D32BF7,3.113,774,9,-77,-31850,0xFC* 2018-12-30 16:11:33: $GPRMC,220516.38,A,5133.82,N,02311.12,W,13606,054.7,270816,020.3,W*$HK,0x05A2170F40B1,3.112,773,9,-75,-32143,0xFC*