Hello from Puerto Rico!

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WP3BM
Posts: 7
Joined: Sun Feb 02, 2020 6:08 am

Hello from Puerto Rico!

Post by WP3BM » Thu Feb 13, 2020 7:28 pm

Greetings!

I am relatively new to DMR, and a good friend pointed me to this forum. Hope to learn a lot in this interesting project, 73 de WP3BM- Gabriel

VK3KYY
Posts: 1586
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia
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Re: Hello from Puerto Rico!

Post by VK3KYY » Thu Feb 13, 2020 8:48 pm

Hi Gabriel

I am not sure if you will learn a lot about DMR on this forum, but you will learn a lot about the OpenGD77 firmware ;-)

WP3BM
Posts: 7
Joined: Sun Feb 02, 2020 6:08 am

Re: Hello from Puerto Rico!

Post by WP3BM » Thu Feb 13, 2020 9:56 pm

That is why I say "This interesting project"! ;)

VK3KYY
Posts: 1586
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia
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Re: Hello from Puerto Rico!

Post by VK3KYY » Thu Feb 13, 2020 10:18 pm

Well.

I think what will be really interesting is if we can eventually port this code to other radios and even other devices.

If someone had the schematic for the Baofeng DM-1801 I think it would be simple to port the firmware to that radio. But its a non-identical clone inside the box, even though it looks almost the same on the outside.

The RD-5R is almost the same as well, but uses a different display.

I've also got an idea to use the firmware, to build a board that can convert a FM repeater to allow it to connect to the DMR network, as if the original signal was DMR rather than FM.
Perhaps use a GD-77S as a donor radio for this to start with, (but don't use any of the RF side of the GD-77S)

VK3KYY
Posts: 1586
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia
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Re: Hello from Puerto Rico!

Post by VK3KYY » Sun Feb 16, 2020 6:23 am

BTW.

If anyone wants to see what happens if you try to load the OpenGD77 into a Baofeng DM-1801

Load the attached firmware.

NOTE. This firmware is encrypted using DM-1801 encrytion and won't load on a GD-77

Also note, it wont receive or transmit, although I think the receiver is being configured correctly, the speaker etc is not.
Attachments
NOT_WORKING_OPENDM1801_NOT_WORKING.sgl
(481.11 KiB) Not downloaded yet

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