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Astro Saber II and encryption question

Posted: Fri Oct 29, 2004 3:16 pm
by mancow
First, I'll preface this by saying I haven't really followed the Astro technology as I should have. Everthing P25 capable I've ever owned has been EFJ or RACAL until now. Id did some searching but didn't resove my issue. So....here it goes.


I have an Astro Saber II H04KDF9PW7AN

5.01.02
6.04.09

NTN11153D encryption module installed


I'm trying to set this up for simple DES analog encryption. However, everytime I engage the secure mode it transmits an encrypted digital (astro) signal. I can hear that it's encrypted on the Pro-96.

I've scoured the programming setup but I'm not seeing what I'm doing wrong. I seem to recall a similar issue when I had an older astro saber (vselp) model in the past. I don't recall what was done to correct it now since it has been years ago.


BTW, I do have a T-3011DX loader.

Again, I'm just wanting to operate in plain old analog DES.

mancow

Posted: Fri Oct 29, 2004 3:35 pm
by mancow
Nevermind :evil: HUA syndrome.

Selecting mixed mode receive forces the secure mode to operate in astro.


mancow

Posted: Fri Oct 29, 2004 11:35 pm
by Dale Earnhardt
yep, done that couple times before lol.......

Posted: Fri Oct 29, 2004 11:38 pm
by mancow
I'm glad I'm not alone!


I always thought that to operate secured astro you needed an OFB module.

What exactly is OFB then if the radio managed to encrypt an astro signal with a simple 1153 DES module installed?



mancow

Posted: Sat Oct 30, 2004 9:18 am
by sglass
mancow wrote:Nevermind :evil: HUA syndrome.

Selecting mixed mode receive forces the secure mode to operate in astro.


mancow
Interesting, now to quickly forget this and run intot he same problem myself.


I run almost all my chans in mixed mode rx.

Posted: Sat Oct 30, 2004 9:34 am
by mancow
I never would have guessed it either. I had checked everything else and that was the last thing to try.


mancow

Posted: Fri Nov 05, 2004 4:31 pm
by Dale Earnhardt
well, if I remember, I think we talked about it before, what ofb was for, if I remember right, it was from one of us that said it, but I think when motorola came out with those DES-XL module, they did not think that it would acutally work in Astro mode, so they came out with the OFB one, that is made for it, and I guess we all found out by trial that DES-XL does work in Astro mode, and u dont need OFB, unless you have it already.....

That or its one of motorola typical scheme, to make money, buy saying those modules dont work, buy that OFB one...... one of those reason :P

Posted: Fri Nov 05, 2004 5:26 pm
by Pj
Is there any sort of work around? I would love to have that enabled in our radio's at work, and obviously it doesn't work (mixed mode setup). We are running DVP-XL, and still has the same problem (even though there is only that DES-XL checkbox)