Tyt uvf1 scrambler problem

[lord-sadler]

Hi,,
I purchased radio model tyt uvf1 but I found a weird problem in it, the problem is the scrambling function which was the reason to buy this radio don't work in the radio at all, I tried everything I could but it didn't work.
If you have a way or programing software that can help me activate the scrambler function I'll appreciate it a lot.
Thanks in advance.

 

[RFI-EMI-GUY]

Over on Amazon, one review said same thing that the scrambler did not work, Another said that promised features were locked out. For a bit more money you could buy an older Motorola radio with real DES encryption and a real transceiver. Of course you will need some other stuff like a KVL etc, but well, you get what you pay for.

 

[lord-sadler]

Thanks for your reply,.
Is there any way to fix this problem other than buying another radio, I thought that the scrambler function is locked and it needs some sort of programming to reactivate it. ��

 

[RFI-EMI-GUY]

Thanks for your reply,.
Is there any way to fix this problem other than buying another radio, I thought that the scrambler function is locked and it needs some sort of programming to reactivate it. ��

There is some software called "Chirp" that may work with it. You should contact the seller and complain. But for $80 I doubt there is much customer service,

 

[lord-sadler]

Thanks for reply,
I tried chirp and the official tyt uvf1 but no luck.

 

[gewecke]

Thanks for reply,
I tried chirp and the official tyt uvf1 but no luck.

. Those are cheap enough, you could just buy another, on the premise its a flaw in that unit Or spend a little more for a Commercial unit with the scrambling feature included. I'm sure you've heard the phrase " you get what you Pay for" right? When someone purchases cheap chinese radios, they're taking a gamble that the radio works at all. :wink: 73, n9zas

 

[lord-sadler]

you are right.
i want to buy a radio with good quality and does support 8 groups scrambler function. What do you recommend ?

 

[gewecke]

you are right.
i want to buy a radio with good quality and does support 8 groups scrambler function. What do you recommend ?

What band? There are parts of the spectrum where scrambling is Not permited. 73, n9zas

 

[lord-sadler]

I need it for vhf and UHF band.

 

[gewecke]

I need it for vhf and UHF band.

That's Not specific enough. For example, Scrambling is Not permited in the Amateur radio service, Or the Gmrs band, Both of which you also Need to be licensed to use. Commercial licenses *may* allow scrambling. You can't use scrambling where ever you want. 73, n9zas

 

[RayAir]

On the cheap, I'd go with MD-380 DMR radios and use the built in digital voice privacy.

You can set your unique privacy key in CPS.

Basic privacy is a 4 digit code, 0-9 A-F (65536 codes)

Enhanced Privacy uses a 32 digit code, 0-9 A-F.


Either of these are much better than analog voice inversion scrambling.

 

[lord-sadler]

Thanks a lot for you guys.. I appreciate it a lot.
But I need analog scrambler radio that support 8 groups.

 

[teufler]

I use a JUENTAI UV8DR. Good ht, has 8 scrambler tones, uhf vhf duAL BAND. COMPATABLE WITH kENWOOD RADIOS THAT SCRAMBLE AND TYT 7800, AND ANYTONE 5888. Software is free, though Chirp does not handle all of these, But I can say the scrambler function works, peopl;e on the bands knoiw that you are scrambling, though unless they have similar radios, they won't hear. I bought a descramble box years ago. It was wired into a Bearcat 101 scanner. That decoded scrambler traffic but I don't believe they are available anymore. True there are better voice masking methods out there but if you want voice scrambling, the Juentai uv8dr works fine and can be setup without software.

Also go into www.youtube.com, there are many videos that talk about the radio, which is not made anymore but was very popular in Europe. Several modification videos that you might get some information from, including voice scrambler.

 

[RayAir]

When you say you need a scrambler with 8 groups (codes) I'm assuming you can choose 1 of 8 different inversion frequencies.

Unless they are DSP based, most inversion is done somewhere between 2.6KHz - 4.1KHz.

I take it you need a specific scrambler. But you could also source other radios with built in inversion. If you have an Android there is a voice changer app that has at least 8 inversion points to scramble/descramble. Maybe you could use this app to find the inversion frequencies used and see what other radios will support it.

The sweet spot for inversion is 3KHz - 3.3KHz. It doesn't have as much voice tonal quality loss.

Keep in mind it's dirt simple to undo fixed inversion. I'm sure you know, just saying.

 

[gewecke]

Thanks a lot for you guys.. I appreciate it a lot.
But I need analog scrambler radio that support 8 groups.

. As RayAir said inversion scrambling is not at all secure. However Digital encryption is much safer. Also in Most places in the spectrum there is a LEGALITY issue with scrambling unless your FCC license allows it! 73, n9zas

 

[KevinC]

. As RayAir said inversion scrambling is not at all secure. However Digital encryption is much safer. Also in Most places in the spectrum there is a LEGALITY issue with scrambling unless your FCC license allows it! 73, n9zas

It's very possible he isn't in the USA and different (or no) laws apply.

 

[MarkVee]

Suppose I'm late to this thread, but the Puxing UV-973 dual band HT has 8 voice inversion settings. It's a feature-rich little radio for the price and my personal favorite HT, a bit surprised it never really garnered much interest.

And while only having 4 scrambler settings the Yaesu FT-2900 (and likely some other models) has undocumented support for adding the FVP-37/EN37 Vertex voice inversion scrambler (~$20 on ebay). Remove the faceplace, install the FVP-37 in the jack labeled J2004, reinstall the faceplate and you're done. Power it on and a "SU" appears in the lower right of the display briefly, and a new menu option is available. Enter the submenu to select one of four scramble settings.

 

[jonwienke]

Inversion scrambling is pointless. It is trivially reversible in real time, and offers zero actual security.

If you want some actual comm security for not too much money, get a MD-380 or MD-390 and use Enhanced Privacy encryption.

 

[teufler]

For a mobile, the Anytone 5888 has 12 codes, 10 fixed and two custom. They have allowed matching up with Kenwood Commerical gear with voice inversion. I have found most voice inversion schemes are not compatable with other brands. The custom settings allowed me to match up. Kenwood , on some radios does not have a fixed setting, you just key in a frequency to use. The Juentai uv8dr allows the 8 fixed settings so is reallly not compatable unless you change the Kenwood settings to match, rather than change the Juentai to match the Kenwood. The voice inversion is good enough to transmit health and welfare, traffic that normally a cell phone would be used. Causal eavesdroppers will have a hard time zeroing in on traffic. Its not as secure as digital encryption but its better than nothing.

 

[jonwienke]

IMO it is worse than nothing, because it offers an illusion of security without being at all secure. It can be defeated in real time by anyone with a bit of technical skill.