Radioddity DB20G

[WRYS709]

6 hours ago, WSIA835 said:

Talk about extra handicapped...

That’s why I unlock mine and use my FCC Part 95E-compliant GMRS codeplug for "unlocked" mode:

 

[WRYS709]

On 9/7/2025 at 6:52 AM, WSIA835 said:

Yup, I was able to save one of the default repeater channels into 39, but 31-38 aren't an option through the radio menu...

I relocked my Anytone back to GMRS.

What I did was I used the Radioddity CPS software to setup Channels 31 - 39 as a repeat of Channels 23 - 30 as "dummy" repeater settings and hope to use the keypad/mic to change the Tones needed on the fly!

Refresh my memory. How do we manually set the Tone from the keypad/mic in Channels 23 - 30 in locked mode, so that we can see if this will work on the dummy repeater Channels 31 - 39?

Here is that "locked" codeplug: 

 

Anytone AT-779UV GMRS 202509081100.dat

NOTE: I updated this codeplug slightly, so that if you downloaded the original one, please delete it and redownload this one, named Anytone AT-779UV GMRS 202509081100.dat

[WSIA835]

I change the radio transmit tones by:

A+* to get into the Funnction Menu

Using B/C to get to Menu 1 T-CTC

UP/DN to choose a value

D to save and exit menu

 

I could make duplicates of each repeater pair, but that's not exactly what I'm trying to do.  The scenario is I'm on vacation for a week, out of state, and I want to save that area's repeaters into say ch. 36 and 37.  And to make it more complicated let's say they are on frequencies already saved in ch. 32 and 34

I think the simple answer is the change the tone on the default repeater channels and just live with it.  Or be limited to channel 39.

[Northcutt114]

On 9/6/2025 at 10:25 PM, amaff said:

Naa naa naa see, that's TOTALLY different. You need a screwdriver and a soldering iron to unlock MARS mod that radio! You can't do it in software!!

OK, pretend I'm newish to this hobby and know next to nothing. I had to google MARS mod.

So if that video is correct, you pop off those two transistors on the board and you can talk HAMS and GMRS?

 

[WRYS709]

2 hours ago, WSIA835 said:

I change the radio transmit tones by:

A+* to get into the Funnction Menu

Using B/C to get to Menu 1 T-CTC

UP/DN to choose a value

D to save and exit menu

 

I could make duplicates of each repeater pair, but that's not exactly what I'm trying to do.  The scenario is I'm on vacation for a week, out of state, and I want to save that area's repeaters into say ch. 36 and 37.  And to make it more complicated let's say they are on frequencies already saved in ch. 32 and 34

I think the simple answer is the change the tone on the default repeater channels and just live with it.  Or be limited to channel 39.

Did you try my codeplug?

Let's say you drive I-95 to the Baltimore suburbs and want to enter the Ellicott City 650 repeater.

https://www.mygmrs.com/map/2440

Go to Channel 36, and use your instructions to change the Tone in Menu 1: to 192.8 and this should work!

What is wrong with this methodology?

NOTE: I updated this codeplug slightly, so that if you downloaded the original one, please delete it and redownload this one, named Anytone AT-779UV GMRS 202509081100.dat

[WRYS709]

2 hours ago, Northcutt114 said:

OK, pretend I'm newish to this hobby and know next to nothing. I had to google MARS mod.

So if that video is correct, you pop off those two transistors on the board and you can talk HAMS and GMRS?

 

I actually have never attempted a hardware mod to any of my legacy Ham radios (pre-CCR), primarily because I am not involved with MARS/CAPS.

I did not get involved with GMRS until I discovered that the UV-5R that I purchased from Amazon would communicate with my grandson's Motorola FRS radios.

That being said, I note that Ham Radio Outlet and DX Engineering often sell a "MARS/CAPS" modification to many of their amateur radios being sold by them, that are capable of such modification.

Given warranty issues on new purchases, I would suggest that is the way to go when purchasing a new radio.

[amaff]

3 hours ago, Northcutt114 said:

OK, pretend I'm newish to this hobby and know next to nothing. I had to google MARS mod.

So if that video is correct, you pop off those two transistors on the board and you can talk HAMS and GMRS?

 

Basically. Unlocks the radio to transmit wherever it's capable (ham, GMRS, and other places it probably shouldn't ever transmit). Similar to unlocking through software.