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Radtel RT-4D ARC4/AES128/AES256 DMR Encryption

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Louie7

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Last edited:
Forts

Forts

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So far... this is the worst 'cheap' radio that I've purchased. Really wanted to like it, but it absolutely does not work on DMR for me. Little broken snippets of audio and that's about it (doesn't even show any RSSI activity when a channel is active). Radtel messaged me to say it's likely something proprietary on what I'm trying to listen to (it isn't) and R&D is 'looking into it'. This was a month and a half ago and it's sat in the box ever since, so... just my experience but buyer beware.
 
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Louie7

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Forts said:
So far... this is the worst 'cheap' radio that I've purchased. Really wanted to like it, but it absolutely does not work on DMR for me. Little broken snippets of audio and that's about it (doesn't even show any RSSI activity when a channel is active). Radtel messaged me to say it's likely something proprietary on what I'm trying to listen to (it isn't) and R&D is 'looking into it'. This was a month and a half ago and it's sat in the box ever since, so... just my experience but buyer beware.
Click to expand...
Thank you for this feedback. I don't have this radio, I relied on AliExpress reviews. if it's that bad, it's better to forget about it and stay on the MD380/390 PLUS which are more expensive but are better.
 
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Forts

Forts

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Yeah I tried to return it but they wouldn't accept it as I couldn't provide a video of it "not working" haha. My go-to for an off-brand radio has been Anytone. Very happy with the AT-168UV and 878UV.
 
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Louie7

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Forts said:
Yeah I tried to return it but they wouldn't accept it as I couldn't provide a video of it "not working" haha. My go-to for an off-brand radio has been Anytone. Very happy with the AT-168UV and 878UV.
Click to expand...
Had you also bought it on AliExpress?
 
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thatcrazydude

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I recently got a pair of those and I'm not complaining as far as regular analog and DMR operations go. Considering it's a real cheap radio, that is.
There's only one "quirk" I'm not sure I can live with long-term: there doesn't seem to be a way to restrict remore stun/kill/wake commands, as in you can only disable RC it completely on the radio or you have it enabled, but then the radio will accept remote control from any other radio even if you're only using encrypted channels.
 
MTS2000des

MTS2000des

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Bought a pair off Amazon for cheap AES radios. Really cannot complain. Adjusting the AGC down to 5 on digital produces clean audio. AES256 makes these great for cruise ship, amusement parks, etc where you don't want weirdo stalkers showing up. The CPS is fairly easy too. I really like these radios and this is from a guy that usually passes on CCRs but they work very well, are solidly built, and cheap enough. Sad that we can get AES encryption on DMR from Amazon but not on high tier MSI BMR radios unless you're a "special customer".
 
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doriboni

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Forts said:
So far... this is the worst 'cheap' radio that I've purchased. Really wanted to like it, but it absolutely does not work on DMR for me. Little broken snippets of audio and that's about it (doesn't even show any RSSI activity when a channel is active). Radtel messaged me to say it's likely something proprietary on what I'm trying to listen to (it isn't) and R&D is 'looking into it'. This was a month and a half ago and it's sat in the box ever since, so... just my experience but buyer beware.
Click to expand...

Why do you say that?

doesn't even show any RSSI activity when a channel is active

on aliexpress we see RSSI activity :

RSI.png
 
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AlanDeMan

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Louie7 said:
There is a new walkie sold by the Chinese, it supports ARC4/AES128/AES256 encryption compatible with Morotola and unlike the Baofeng DR-1802U, Radtel provides update firmware and CPS.


the CPS :


last firmware:


View attachment 178324View attachment 178325View attachment 178326
View attachment 178327
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I just got my first DMR radio the Radtel RT-4D. I'm have a tough time getting DMR set up right. Any chance of a code plug with PAPA System (So. Calif) and maybe Brandmeister worldwide #91. This would help a lot. It would give me an example of real world DMR programming.
 
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pb3400

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AlanDeMan said:
I just got my first DMR radio the Radtel RT-4D. I'm have a tough time getting DMR set up right. Any chance of a code plug with PAPA System (So. Calif) and maybe Brandmeister worldwide #91. This would help a lot. It would give me an example of real world DMR programming.
Click to expand...
You should really learn how to do it. Post specific questions and you can get an answer, but just copying someone else's work is a disservice to yourself.
 
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