The PAPA System

PAPA D-Star

Programming The Radio

Programming Your D-Star Radio

To operate in digital mode you need to program at least two call signs for simplex operation (“MYCALL” and “URCALL”) and a third call sign for repeater operation (“RPT1”). Many variations are possible, that are documented in the radio’s manual, which allow for functions such as call sign calling, call sign squelch and automatic call routing.

The basics are as follows. For simplex operation you need only program “MYCALL” (whatever it is) and “URCALL” (whatever it is). An option for “URCALL” is CQCQCQ, which means that anyone on the frequency will hear your call.

For repeater operation you need also to program “RPT1” (the nearest repeater). Each repeater has a unique call sign, which typically is a club call. The call sign field has eight positions—up to 7 for the call sign itself (e.g, 2x3 plus a special distinguishing character, if needed) and an 8th position which designates which band on that repeater you wish to use. This band designator must be in the 8th position of the repeater call sign, regardless of the length of the actual repeater call. The convention is that the letter A stands for 1.2 GHz, the letter B for 440 and the letter C for 2 meters. (Currently PAPA operates only on 440, though we have the hardware for 1.2 GHz Voice and Data as well.) So, for example, a valid call sign for “RPT1” would be “KA5BX  B”. Notice that there are two spaces before the band designator in this case to ensure that designator is in position 8.

PAPA D-Star Repeaters

Programming information for currently operational PAPA D-Star repeaters is as follows:

 

Mount Palomar

RX 445.860

TX 440.860

Callsign: WB6YES B       (one space)

 

Oat Mountain

RX 447.200

TX 442.200

Callsign:WB5EKU1B      (no spaces)

 

Sadde

RX 449.080

TX 444.080

Callsign: KF6BQK B       (one space)