Opengd77 on the air from anywhere ?

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LY1RF
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Joined: Sun Mar 01, 2020 12:05 pm

Opengd77 on the air from anywhere ?

Post by LY1RF » Fri Jul 16, 2021 4:45 pm

Is it possible to tx/rx opengd77 radio from lets say android phone through internet ? No pistar, just for local simplex ? Something like raspberry server for remote qso from anywhere at local area of your base station ?

VK3KYY
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Location: Melbourne, Australia
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Re: Opengd77 on the air from anywhere ?

Post by VK3KYY » Thu Dec 02, 2021 2:29 am

There are phones with built in DMR radios

There are also phone apps that communciate with DMR servers so that no radio is required

These are both out of the scope of this forum.

LY1RF
Posts: 32
Joined: Sun Mar 01, 2020 12:05 pm

Re: Opengd77 on the air from anywhere ?

Post by LY1RF » Thu Dec 02, 2021 6:52 am

Question was about remote operating opengd77 radio from internet, but nevermind...

VK3KYY
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Re: Opengd77 on the air from anywhere ?

Post by VK3KYY » Thu Dec 02, 2021 8:56 am

LY1RF wrote:
Thu Dec 02, 2021 6:52 am
Question was about remote operating opengd77 radio from internet, but nevermind...
OK

There is no terminal mode etc

This would require a composite USB device to provide an audio device as well as a control device (com port).
There is insufficient space in the ROM for this, and its not known whether the processor is fast enough to support a USB audio device.

ve7mdt
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Re: Opengd77 on the air from anywhere ?

Post by ve7mdt » Fri Dec 17, 2021 2:24 pm

I guess you can cross patch it using any of the RoIP platforms (Echolink came to mind, but I am not sure about the policy side for them), with a 2nd DMR client radio that is in range w/ the Hotspot (of the GD-77) and then remote control the Hotspot system via any of the remote desktop platforms (VNC etc etc). Not sure if that's what you want, but it's doable w/ this "method".


RoIP client ----- internet----- RoIP computer <-> Echolink interface circuitry <-> 2nd DMR client radio -----OTA----- GD-77 Hotspot radio <-> Hotspot computer ----- internet ----- remote control desktop

You control both ends in the above path, while the rest of the stuff stays at the remote location.


Kind of convoluted but doable IMHO. But not sure if that's what you want.
73,
David
VE7ET / VE7MDT
DMR radios: D878UV, D578UV-III (not arrived yet), XPR 5550, XPR 4550, XPR 7550, SL 7550, VXD-7200, CS-800D, RD-5R, GD-77, RT3s, MD-340 (not arrived yet)
DMR repeater: XPR 8400 UHF

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