[aprssig] Help for course/speed/altitude etc HF APRS
archer at eskimo.com
Sun Apr 29 01:56:57 CDT 2007
On Sun, 29 Apr 2007, Jack Chomley wrote:
> In my case, the TM1+ can look for the header ($GPRMC) and I then either set
> the sentence length or termination character and it will be sent out the radio
> port at intervals set by my Tx timer value.
You originally stated that you wanted speed/course/altitude.
If you transmit the GPRMC sentence you'll only have
time/position/speed/course sent out.
If you choose GPGGA instead, you'll be sending
Many TNC's that can send Standard APRS, Mic-E Compressed, or Base-91
packets allow you to select which of the speed/course/altitude
parameters to send, and can send them in every packet.
Curt, WE7U. archer at eskimo dot com
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