SteveShannon

Yeah I don't have any trouble with Chirp either

Well here you go then:
https://www.rtsystemsinc.com/AT-778_c_917.html

Well, I tried it.  It worked exactly as expected, finally making it possible to create channels based on frequencies imported from RepeaterBook or other online sources. I inserted channels and that worked.  I think I tried every menu.  There were no surprises. 
The radio I tried it with one of my two Rdioddity DB20G radios.  I read from the radio first and saved that as a working file.  Then I did an import from RepeaterBook of all the 2 meter and 70 cm repeaters within 100 miles of my zip code.  I created a new file with those channels, then inserted a blank line at the top for our club's simplex channel.  I programmed that channel and discovered that when creating a new channel it defaults to Low Power, which is about 6 watts for this particular radio. I changed that to High and wrote to the radio again.
Everything worked exactly as it should. For me the lack of decent CPS was my only complaint (well, also how they labeled the FUNC button). After reading their cautions about using the AT779UV software with similar radios and their comment about having to correctly plug in the programming cable I had a tiny bit of trepidation.  Neither of those things presented a problem.  It worked with the driver that i originally got from Radioddity, using the cable that shipped with the DB20G. I did nothing special a far as plugging in the cable.  Load the driver first, before plugging in the USB end of the cable.  Have the radio turned off when plugging the radio end of the cable into the microphone socket.  Of course the radio requires a power source.  It does not get its power from the USB port. I used a battery.  I also connected a dummy load so I had no fears about transmitting.
For me it was definitely worth the $25.

That’s right, but not only that it’s not AM, which the air bands are.  If I knew how to unlock it to transmit on the Airbands I wouldn’t tell you.

Give it time and RT Systems might come out with a Mac version. I run the RT Systems software for my Icom radios on my Mac. I would get the RT Systems software for my Wouxun radios if they had a Mac version.
Edit: I just sent an email to RT Systems asking about Mac versions for the Wouxun radios and will update when I hear back from them.

It depends on the brand of radio and on the antenna used. I have tried the Nagoya 771G and the Abbree version on my Baofeng UV-5R GMRS radios and on my Wouxun KG-935G.
I saw an improvement with the 771G and the UV-5R GMRS radios compared to the stock antennas. It was just the opposite with the KG-935G, the stock antenna did better.
I have tried the Nagoya 771 dual band antenna on the following radios: Baofeng GT-5R, Explorer QRZ-1 (TYT UV-88), and Icom IC-T10.
GT-5R - 771 did better
QRZ-1 - 771 no difference between the 771 and stock antenna
IC-T10 - stock antenna did better.
 
Your results may vary from mine.

I have never had a problem using CHIRP with my 778UV. Used the OEM software to set the frequency range and then just CHIRP ever since.

Well, I bought the software and downloaded it. After ham breakfast I’ll get a chance to try it and see whether it works for my DB20G. 

I never thought this day would actually come. No Mac version yet but still it’s a good start. I wonder if now that RT has managed to achieve this if the folks at Chirp don’t take another stab at it. Anyway I imagine this software will be very popular. Bravo RT.👏

This could solve the only issue I have with the DB20G. Who’s gonna be the first to try this?
https://www.rtsystemsinc.com/AT-779UV_c_2218.html
 

Ha!  It’s already so stretched out and worn that things just fall out.  I went looking for RTSystems coupons and found so many RTSystems receipts that they’ll be holding an intervention. I probably will later today after mulling it over.

Well, I bought the software and downloaded it. After ham breakfast I’ll get a chance to try it and see whether it works for my DB20G. 

Ha!  It’s already so stretched out and worn that things just fall out.  I went looking for RTSystems coupons and found so many RTSystems receipts that they’ll be holding an intervention. I probably will later today after mulling it over.

It's a little annoying that it even asks about a ham radio call. As if to imply some sort of relationship between GMRS and Amateur radio. 

You would be surprised just how well it works. The match is far better than the screw-on antennas you can buy. Look at the simulated SWR match and the measured results. 
This shows a simple 1/4 wave ground plane has enough bandwidth to cover the typical usable range on the Ham 70cm band through the full GMRS range. That was the goal of the project. I’ve used this on a couple of trips to the Dayton Hamvention the past few years. 
Running my NX-1300DUK5 DMR radio at the 1 watt setting, on simplex, results in solid communications while keeping the RF exposure to about 0.5 watts average due to the TDMA nature of DMR.

Contact the Chirp developer.  For whatever reason Chirp is expecting something different than it is receiving.  That’s not the kiss of death while reading, but if you turn around and write something to memory that doesn’t match you could end up with unexpected results, including possibly bricking your radio.
Or just use the factory software in Parallels.

https://www.youtube.com/@TheNotaRubicon

I fight the urge with the Vertex stuff...there was one I had my eye on, but apparently software and cables for that are NLA, along with a p25 mobile that only seems to be available in 450-512, not 400-470...
(Edit: it was the vxd-720, which looks to be a near twin to the moto xpr6xxx series)
i did give in on a Midland P25 handheld, though. something new to futz with. Have it in hand and it's a nice solid little device. Haven't had a chance to dive into programming yet.

The FCC has not "stopped allowing it", they never allowed it to begin with but they did clear up some of the wording on their website so it is now less ambiguous/more clear, but no rules have been changed.
You cannot "work around it" and "stay ok" with the FCC. The (many) repeater networks that are still online are simply ignoring the FCCs rules knowing that the worst that will happen is that they have 1 in 1,000,000 chance of getting a mean letter asking them to disconnect their repeater(s) from the internet/other network connectivity.

There really is nothing more to "the situation".

That’s right, but not only that it’s not AM, which the air bands are.  If I knew how to unlock it to transmit on the Airbands I wouldn’t tell you.

Although (as you pointed out about the BMS) there’s an even greater reason to do that now, it has been that way even before BMS.  You want the final connection to the battery (which almost always sparks) to be somewhere else other than near the vents of the battery so the hydrogen gas released by the battery doesn’t explode.
I knew of a guy who was blinded when a truck’s battery exploded with his face above it. I was 18 or 19 and working for the same oilfield roustabout company as he was.  I’ve taken it very seriously ever since.  The final connection is to a point on the chassis.

That’s right, but not only that it’s not AM, which the air bands are.  If I knew how to unlock it to transmit on the Airbands I wouldn’t tell you.

Just to clarify, 935G = GMRS with dual band receive and IP66. The 935H = Ham tri band (which like the Q10H can be unlocked if desired) and IP66. Q10H = quad band with AM airband receive and IP67. Good luck.

Thanks. May get the 935G Plus then.
Definitely need a ride to radio anonymous meeting. I have 4 cheap radios and the Q10H and am looking for more. What's bad is i have no friends to share them with and no repeaters around me. I so I need some serious help... 

Go with what works for you.
That being said, it sounds like there are some issues with the DB-20G that need to be addressed. The radios should work fine when set to wide band without any interference. And it is obvious that there is a problem with the radio since people are having issues when transmitting on wide band. And the seller and/or manufacturer will not know about the issues if people don't let them know.