![Anytone ranging and remote monitoring](https://9a1gs.com/wp-content/uploads/2020/04/youtube_anytone-1024x630.png)
Among other great functionalities available on Anytone DMR radios, I just recorded how you can initiate a remote monitor and ranging request from one radio to another.
With ranging request, the receiving station is replying with a location. On a successful receive, initiating station either shows you distance/bearing between two radios or GPS coordinates of the second radio. If a receiving radio, that initiated a request, has a GPS lock, distance and bearing will be shown. Without a GPS lock, just a GPS coordinates of a remote radio will be shown. Of course, remote radio needs to have a GPS lock.
With remote monitoring request, after initiating radio sent a request, remote radio will immediately initiate a private call back. Then you can eavesdrop remote location.
I made test on a simplex channel. So far, I was able to successfully make it with this settings on a simplex channel:
- APRS receive disabled
- DMR mode simplex
- M-SMS SMS format
- Ranging checked
I have also a SMS confirmation checked.
On Anytone 578, there is a DMR MODE setting and as you can see, it is set to Simplex
![](http://9a3gos.com/wp-content/uploads/2020/04/578ranging.png)
On a Anytone 878, you can choose it on a radio through menus, and after comparing settings afterwards, it seems that for a DMR MODE simplex you need to check a ‘Through Mode’ on.
![](http://9a3gos.com/wp-content/uploads/2020/04/878ranging.png)
For both radios, SMS format most be set on Motorola type M-SMS under Optional Settings.
Also Remote Monitor must be On (if you wish to send remote monitor requests to that radio)
![](http://9a3gos.com/wp-content/uploads/2020/04/578-878digital_options.png)
You can set keys (key function) for ranging and for remote monitor.
![](http://9a3gos.com/wp-content/uploads/2020/04/878_key_function.png)
On a 878 I have PF2 long for a ranging request.
Here is a video demonstration of both