APRS Support

 

With the release of the Anytone AT-D878UV HT, APRS is now directly supported by this DMR capable radio
FW v1.10 released with release notes  //  D878UV PNW Stock Codeplug

 

The PNW DMR network actively supports our members.  We primarily use this IO group for indirect member support.  Search for hashtag: #D878UV to quickly locate messages pertaining to the 878 and APRS.

Here's a set of set-up screenshots for v1.09 (v1.10 is the same but...) to get anyone just started out the (i)gate, so-to-speak.  These steps will help get your 878 showing up at aprs.fi correctly.  Click on an image for larger size:

You may ignore the digital settings for now as PNW doesn't process them.  If you don't have GPS locked onto the Sats (circle on top line or radio display is not RED) and you wish to manually send data to aprs.fi, then change "Fixed Location Beacon" to ON.  PTT will send a burst on 144.39 manually.  Change the "Enter Your Sending Text" to your personal text as this is the comment line that shows aprs.fi.  The APRS Symbol table is in the PNW DMR IO Group Anytone directory.


Set these here as show.  "GPS" and "Get GPS Positioning" both should be ON, the rest is for digital mode, might at well set it now.  PNW DMR does plan to support digital geolocation with an aprs.fi gateway (we need coders to create this gateway).


Set "SMS Format" to:  M-SMS

IMPORTANT:  While not part of APRS set-up, please set the Group Call Hold Time to 1 second, this matches the PNW DMR repeater settings for best networking performance.


 

In firmware v1.10, this screenshot is for each channel if you wish to enable APRS analog or digital to be active.  Set "APRS Report Type" to Analog (or digital if not on PNW DMR network) and "Analog APRS PTT Mode" to End of Transmission ( or Beginning or Off).  You may also do this for analog channels as well.


Be patient for GPS lock...could be up to 30 minutes for the first use.  Wide open sky best as the almanac is about 12 minute download itself. GPS Test mode is an option in v1.10 at each power on cycle if you wish.  We will be testing and providing the typical 878 GPSr warm start and test start timing as soon as we have good weather and clear sky access.

Use of -6 is suggested but many others can be used.  There are conventions that are recommended, -7 or -10, so your actual implementation is up to you.

For testing of your set-up you may wish to reduce the auto and manual interval times to 60 seconds.  Be sure to go back to the longer settings when done testing!

These settings work but could be tweaked in the future.  If anyone has corrections or comments to make this sample set-up work better for our PNW users, please let us know.

 

 Revised: 12/29/2018 12:07

 

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