O baliza RAW este de forma:
$LRPRS,YO3HJV-15,01,02,2018,12,03,56,44.423229,26.111504,3100,29,97390000,415 *
Unitatea de receptie furnizeaza pe serial info de forma:
RX Packet String is :
$LRPRS,YO3HJV-15,01,02,2018,12,03,56,44.423229,26.111504,3100,29,97390000,415 *
Last Packet RSSI = -40
Preamble = $LRPRS
Target Callsign = YO3HJV-15
Last RX Date = 01/02/2018
Last RX Time: 12:03:56
Last Received Lat = 44.423225
GPS Lat = 44.423149
Last Received Long = 26.111503
GPS Long = 26.111181
Last Distance to Call m: 27.18 m
Last Distance to Call Km: 0.03 Km
Last Course to Call: [ENE]
70.00 degrees
Last Known Altitude = 31.00
Last Known Speed = 0.3
Last Known Course = 97.39
Battery = 4.15
Location: 44.423145,26.111177 Date/Time: 1/2/2018 10:04:02.00
Location: 44.423145,26.111177 Date/Time: 1/2/2018 10:04:02.00
Location: 44.423149,26.111175 Date/Time: 1/2/2018 10:04:03.00
Location: 44.423149,26.111175 Date/Time: 1/2/2018 10:04:03.00
In partea de inceput este sinteza informatiilor obtinute din primirea unui packet $LRPRS comparate cu informatia de la GPS-ul receptorului.
In partea de jos este un flow continuu de date de la GPS-ul receptorului.
La receptie, se verifica preambulul apoi se procedeaza la extragerea informatiei din sirul CSV.
-$LRPRS- pachet de pozitie
-$LRMSG-pachet cu mesaj
-$LRTLM-pachet exclusiv cu telemetrie
Variantele de modulatie LoRa:
rf95.setModemConfig(RH_RF95::Bw125Cr45Sf128); ///< Bw = 125 kHz, Cr = 4/5, Sf =
128chips/symbol, CRC on. Default medium range
//
rf95.setModemConfig(RH_RF95::Bw500Cr45Sf128); ///< Bw = 500 kHz, Cr = 4/5, Sf =
128chips/symbol, CRC on. Fast+short range
//
rf95.setModemConfig(RH_RF95::Bw31_25Cr48Sf512); ///< Bw = 31.25 kHz, Cr = 4/8, Sf =
512chips/symbol, CRC on. Slow+long range
//
rf95.setModemConfig(RH_RF95::Bw125Cr48Sf4096); ///< Bw = 125 kHz, Cr = 4/8, Sf =
4096chips/symbol, CRC on. Slow+long range
