Users may not create topics, posts, or private messages containing or relating to the following material (especially pertaining to Motorola copyrighted software, unless you want Motorola to come along and shut this site down):

  • Listing for sale or trade of, or links to sites offering for sale or trade of, or giving away, Radio
    Service Software (RSS) or Customer Programming Software (CPS)
  • Profanity, pornography, defamation, or slanderous remarks directed towards any individual or entity
  • Commercial advertising (except in the Batboard Vendors forum, as approved by the Admin/Mod Staff)
  • Any other items which may be deemed as offensive

If any topics, posts, or private messages containing or relating to the aforementioned material are brought to the attention of the Admin/Mod Staff, they will be deleted.

Additional FAQ items appear here in Forum Rules. Please review them for posting guidelines and further clarification.

P-25 Secure problems

Moderator: Queue Moderator

RADIOMAN2002
Posts: 1102
Joined: Thu Apr 04, 2002 4:00 pm
What radios do you own?: More than I can count

P-25 Secure problems

Postby RADIOMAN2002 » Fri Mar 31, 2017 10:48 am

I won't cross post but the problems I am having are with both XTS-3000 and XTS-5000 radios in simplex secure mode. All the radios work when in clear P-25 mode perfectly,as they have the same NAC code. I have a mix of different level versions of secure boards from R2.0 to R3.55, but all have DES-XL, and some have DES-OFB and the 5000 has AES as the third algo. There is one radio that no matter what version board I put in to will not receive secure until I transmit and the other radio actually receives in secure before it will then receive the other radio. This also occurs when using the 5000 as well, but after this radio receives a secure transmission it will then receive secure until you change channel or turn the radio off/on. I have tried the different unmute rules and XL and NON-XL transmitting but to no avail. I key load the radios with a T-3011DX and have no problems as the key loader gives the tone and a pass display. Any ideas?

While this may not be the problem another question is how does the radio decide which algo it uses if you have a multi algo board in it.

RADIOMAN2002
Posts: 1102
Joined: Thu Apr 04, 2002 4:00 pm
What radios do you own?: More than I can count

Re: P-25 Secure problems

Postby RADIOMAN2002 » Tue Apr 04, 2017 5:18 am

To further my own post so others can find this information if needed. I now have another radio that is doing the same no secure receive prior to transmit to the other radio. The second radio also has a newer version of firmware/DSP, which after reading somewhere I think may be the problem. I read that EMC modules are good up to ver R07.xx.xx and UCM requires R08.xx.xx and up.Possibly some mismatch issue with firmware to EMC modules I have.I don't have an UCM modules to try, but I will look around and if they are cheap enough I will try that to see if the problem goes away. For now those 2 portables won't be used, too much a chance of not being heard.

After some more testing with a third radio it appears the higher version firmware R08.xx.xx radios talk to one another just fine, it's the mix of lower and higher firmware causing the issue.

Information from Repeater Builder:
"XTS 3000 UCM modules require HOST firmware > 7.xx to function. EMC secure modules with firmware (1.xx-2.xx) will function if CKR key management is DISABLED and PID key management is ENABLED in the CPS. The "V67" module is very common in the second-hand market. This module is USUALLY loaded with DES, DES-XL and DES-OFB encryption (i.e. it's a NTN9121 module without labeling). When you see one with this part number on it, you can safely assume that it's a tri- mode DES/DES-XL/DES-OFB module.

ScannerDan
Posts: 407
Joined: Sun Sep 09, 2001 4:00 pm

Re: P-25 Secure problems

Postby ScannerDan » Fri Nov 24, 2017 8:23 am

Thank you for the post it was helpful..
***********************************

I hate arguing with stupid people. They just bring you down to their level and beat you with experience.


Return to “ASTRO Series (Astro Saber, Spectra, XTS3000/3500) Subscribers”

Who is online

Users browsing this forum: No registered users and 1 guest