altitude with Compressed format. Test before
you fly to see which to use.
+ ==== APRS Offset
+
+ The delay from the top of the minute before sending
+ the first APRS packet of the minute. Coordinating
+ values for this parameter between multiple devices can
+ allow a single receiver to reliably receive APRS
+ packets from multiple devices. Note that this offset only
+ takes effect while the GPS signal is locked so that the
+ transmitting device knows the current time.
+
==== Callsign
This sets the call sign included in each