Timz GMRS Repeater click HERE for details on specific radio models
click HERE for a GMRS FAQ - click HERE to reprogram your radio
APRS - GPS through Timz repeater
There are GMRS radios that will transmit a short data burst; this data being either GPS coordinates or a digital ID of that particular radio n(and Texts, please read further about testing). If the same brand of radio happens to be receiving it, they will get a heading and distance value.
Of the many methods of sending this data burst, here are the most common:
* at the end of every voice transmission.
* at a timed interval, an automatic broadcast from your radio every 1, 2, 5 minutes of operation. These occur automatically at the set interval.
Timz repeater will allow the first type (added to the end of a voice transmission).
Do not text through this repeater, either use simplex or your own repeater for this task.
During a net… it is not polite to send your GPS data at all. Also, do not "kerchunk" just to send a GPS data burst. Remember, it's OK to send GPS data through Timz repeater at the end of a voice transmission; kerchunks do not have a voice content.
Not allowed is the "timed" method. If you need this type, then operate on a different simplex channel… or through your own repeater. Timz GMRS repeater (like so many others) is not a data collection point for APRS-GPS; not to be consumed by data packet transmissions.
Amateur (Ham) radio did this right, they assigned one channel (144.390 mhz) specifically for these GPS data bursts. No matter what channel you are talking on... when it's time to send your GPS coordinates the ham radio switches to this different "data only" channel… sends the data… and switches the radio back to the channel it was originally being used on. It's all done in the background automatically. The GPS data bursts are never heard on, nor are they tying-up... a voice channel. To use this 144.390 frequency, you'll need a Ham radio license.
Interested in Amateur (ham) radio? Click HERE click HERE for a GMRS FAQ
click HERE for details on specific radio models
click HERE to reprogram your radio
Interested in Amateur (ham) radio? Click HERE
Contact Tim
