Port to TYT UV380/UV390

SP2ONG
Posts: 40
Joined: Sat Nov 16, 2019 9:47 am

Re: Port to TYT UV380/UV390

Post by SP2ONG » Thu May 14, 2020 6:39 pm

DM-X looks is DM-1702

https://radioaficion.com/cms/baofeng-dm ... ification/

Photo board DM-X with HR-C6000 and STM32F406

https://www.dropbox.com/sh/kx8u7bmza1d0 ... cessor.jpg

more photos DM-X

https://www.dropbox.com/sh/kx8u7bmza1d0 ... hgPJa?dl=0

forum about DM-X

https://www.twowayradioforum.com/t/baof ... x-dmr/7249

Price DM-X on Aliexpress about 75 $ USA

sfoto
Posts: 50
Joined: Sat Apr 18, 2020 10:48 am
Location: KO85

Re: Port to TYT UV380/UV390

Post by sfoto » Thu May 14, 2020 9:43 pm

EB3AM wrote:
Thu May 14, 2020 5:57 pm
has not a 16 position button... maybe is the 1702??
yup, its a 1702. baofeng LOVES renaming their radios and changing their cosmetics from time to time, starting with 5R/82.

9A3BKR
Posts: 2
Joined: Tue Jun 02, 2020 10:25 pm

Re: Port to TYT UV380/UV390

Post by 9A3BKR » Sat Jun 13, 2020 10:06 am

Any info on this porting ... is it realistic to expect it soon or will it take months or longer.
Just asking to know what station should I go for.

VK3KYY
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Location: Melbourne, Australia
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Re: Port to TYT UV380/UV390

Post by VK3KYY » Sat Jun 13, 2020 11:16 am

9A3BKR wrote:
Sat Jun 13, 2020 10:06 am
Any info on this porting ... is it realistic to expect it soon or will it take months or longer.
Just asking to know what station should I go for.
LOL

It took 3 years to develop the OpenGD77 firmware, so ports to radios with different architectures, like the UV-380 will not be a quick process.

ve7mdt
Posts: 29
Joined: Wed Nov 27, 2019 9:23 am
Location: CN89

Re: Port to TYT UV380/UV390

Post by ve7mdt » Mon Jun 15, 2020 8:17 am

VK3KYY wrote:
Tue May 12, 2020 11:44 pm
Retrevis are definitely selling them at rock bottom prices.

I paid $75 USD (around AUD $119 including 10% local GST), including shipping, albeit very slow shipping as the only express shipping on offer was $40 extra for DHL.

I just checked the Radioddity website and the GD-77 would cost me $138 AUD at the moment, so the RT-3S is definitely cheaper for a comparable radio.

I can see why people are attracted to the RT-3S, because of the low price and the fancy colour screen, however I personally using coloured screens outdoors is a big problem with the very strong sunlight we have here in Australia, hence why I like the GD-77 and other radios with a black and white display.

Its just a shame the display isn't a big larger, because I don't think a colour screen really adds a lot to the usability, but a larger screen does.

I also prefer the Left / Right buttons on the GD-77 to the rotary control, because the rotary control gives "Absolute" position, and can't be used to scroll up and down the menus etc.
Did you order the one w/ or w/o the GPSr? At the lowest price on eBay in the past, it was $65 w/o GPSr and $70 w/ GPSr in USD, and free shipping worldwide from China. I have ordered the w/o GPSr way back at $95 USD when it was rather new, then I gave it away and later ordered the one w/ GPSr at $70., and now loaned out to a friend for months now, so I don't have it around me.

Yes, the MD-380 series are infamous for its washed out colour screen, which is quite annoying. I also own Motorola MotoTRBO radios and you just can't compare the two, nor the cost of course, and the latter's colour screens are much better (XPR 7550 , XPR 5550, SL 7550 etc, which I own.)

The RT3s was a much more expensive model, even after the GD-77 came out. The price went down when TYT / Retevis came out w/ new model(s) and they deem this "old" model and dropped the prices, ironically, lower than the single band MD-380! Which is very odd. (I think the mono band is superhet design and not "cheap" SDR?).

But the biggest reason why hams are drawn to the RT3(s) / MD-380 / MD-UV380 is that it can hold a ton of contacts in its memory, which has been the biggest request, and almost all premium ham market DMR radio models do (CSI, TYT, Anytone etc), and what lower tiers don't. (Commercial market models they don't care about this or the market from hams.) So that's why it's well sought after, and that started from the CSI CS750 (or modded by CSI CS700) (made by CoValue) (which I sold b/c I didn't know about the upgrade mod, as they hadn't announced it.).

As for screens, this is similar to the mobile computing / handheld computing markets in the past. There are 2 ways to tackle outdoor use under the sun: one is using transflective LCD, which some PDAs used to employ, and that helps under the sun use, plus they use less power. They don't look very nice though, but that's a compromise. The other method is brute force, typically only on high end car monitors or laptops, is to have very high brightness, at least 400 nits, or even more, some are up to 700 nits. That will burn a lot of power.

I hope you receive yours soon. It takes typically a month from China to Canada and that's pre-pandemic time.

Thanks!
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

ve7mdt
Posts: 29
Joined: Wed Nov 27, 2019 9:23 am
Location: CN89

Re: Port to TYT UV380/UV390

Post by ve7mdt » Mon Jun 15, 2020 8:21 am

G4EML wrote:
Tue May 12, 2020 3:29 pm
The MD-9600 problem only affects the first two hardware variants, the latest models have been fixed with a re-design of the PA power control circuit.
The problem is the opposite to your description. It works fine in high power but at mid or low power the PA takes too long to turn on so the first part of the burst is missing or at least corrupted. This is most noticeable at VHF but it does affect UHF a little.
This can only be fixed with a rather involved hardware mod which has not been made generally available as it is not something most people would be able to do.

The 9600 is actually a very good radio in all other respects. It would be nice to port OpenGD77 on to it . But it is a massive job, about the only common hardware is the HRC-6000

Colin
I might have heard my friend wrong, but I recall that's how he described it. So I probably heard him wrong then.

Yes, he had the 2nd gen, and not 3rd gen. He was aware of it when he bought it from another ham I also know at the time, but only for 1 band, and he noticed that the other band was also affected as well.

I almost bought a 9600 but I didn't. Funny I own Motorola, Anytone (not here yet) and CSI DMR mobiles but not the TYT, yet I own TYT HTs.

I think TYT is a bit too rush to market and didn't fully test their products. That's unfortunate. Anytone seems to be more polished in comparison but still not perfect.
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

ve7mdt
Posts: 29
Joined: Wed Nov 27, 2019 9:23 am
Location: CN89

Re: Port to TYT UV380/UV390

Post by ve7mdt » Mon Jun 15, 2020 8:24 am

G4EML wrote:
Wed May 13, 2020 9:26 am
Another problem with colour screens, as demonstrated by the Anytone 868 is that they tend to generate more RF noise than simple monochrome ones. The Anytone suffers with Low sensitivity on VHF because the screen interferes with reception.
I own a 878UV and I do notice some kind of noise affecting RX, but I don't know what it was, I thought it was just poor receiver chip (aka cheap SDR). My friend owns a 868 (not sure if 1st gen or 2nd gen), and I will ask him about this. This is certainly interesting and I hope there is a way to fix this, as a few of my friends have invested in the 878 model (plus 1 868).
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

VK3KYY
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Location: Melbourne, Australia
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Re: Port to TYT UV380/UV390

Post by VK3KYY » Mon Jun 15, 2020 8:26 am

I bought the version with GPS, purely because I don't have any other radios with GPS.

I just checked the shipping details and they have another 55 days to get it to me, before I can ask what's happening with the order.

ZL1GW
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Location: Auckland, New Zealand
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Re: Port to TYT UV380/UV390

Post by ZL1GW » Tue Jul 21, 2020 9:41 pm

Hey guys, sorry for being gone from this thread for so long. Glad to see my thread is alive and well and progress is being made!

Unfortunately I injured myself, and was out of commission for a little while. Didn't have much extra time to do things (other than lay in bed), and my radio hobbies suffered...

Anyway, I'm back up and about, and eager to jump back in, and it looks like the one hesitation I had at the time may have been surpassed!

I was waiting because the encryption wasn't broken, and I was unwilling to hardware mod my UV390 without an alternate HT on-hand... But eager to assist in development/porting.

Am I correct in my interpretation of the above posts that the encryption on the UV380/390 (same radio) has been broken? If so that's great news!

It also looks like a few others are actively working on this, so I'll jump in and say what can I do to help?
73, ZL1GW

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