ISS: Information Sending Station
IRS: Information Receiving Station
A ping frame, for "pinging" the other station, to see if a connection could be possible. Will be acknowledged by a ping ack frame.
frametype | IRS callsign CRC | ISS callsign CRC | ISS full callsign | empty | empty | empty |
---|---|---|---|---|---|---|
1 Byte | 2Bytes | 2 Bytes | 6 Bytes | - | - | - |
60 | CRC16 | CRC16 | Callsign as str | - | - | - |
frametype | IRS callsign CRC | ISS callsign CRC | IRS gridsquare | empty | empty | empty |
---|---|---|---|---|---|---|
1 Byte | 2Bytes | 2 Bytes | 6 Bytes | - | - | - |
61 | CRC16 | CRC16 | Gridsquare as str | - | - | - |