Service manual

Guide to ASTRO™ Digital Radios
Figure 6.4 A Motorola Inc. NNTN5032 UCM (hardware encryption module) for the XTS 5000™. The NNTN5032 modules can be ordered with any
Type 3 encryption algorithm. Care must be exercised when purchasing these modules on eBay or from other Internet sources as they could be
blank, have AES-256 only, or contain other unwanted algorithms contrary to what the seller is advertising. Avoid “I think it is” auctions.
There are many eBay auctions which offer NNTN5032 encryption modules for sale. Sometimes
there are deals to be had but other times these modules are sold in “blank” configurations (no algorithm
installed) or they come with AES-256 only, which is useless unless you possess a KVL3000 plus with AES-
256 algorithm capability. An ideal module comes with DES-OFB, DES-XL and AES-256 installed, with
R05.05.02 UCM firmware or newer—although these are hard to find.
Typical after-market prices for the NNTN5032 modules range from $100 USD (AES-256 only) to
$150-175 USD, for a triple-algorithm module with recent firmware. If you have doubts as to what you’re
buying, do not make the purchase.
There is not much “hacker” related information available about the Motorola Inc. XTS 5000™
portable, but there are a few things to be aware of in terms of supported features and firmware
dependencies.
The Motorola Inc. XTS 5000™ is capable of supporting up to 850 modes. In an FPP-enabled radio,
254 (maximum) of those modes may be conventional FPP channels, and 596 (more if you decrease
conventional modes) may be trunking modes. To benefit from this massive memory capability (default is
512 modes) you must have firmware version R07.00.00 or higher and program the radio with CPS
R07.00.00 or higher. Some may argue about the maximum FPP-capable conventional mode capacity, but
254-mode FPP radios do exist—although they may not be factory supported radios.
The XTS 5000™ also supports the HMN4080A GPS-enabled speaker-microphone. With this
accessory attached to the radio, the user may display GPS data on the screen. A host and DSP firmware
combination of R07.00.00 or greater and CPS of R07.00.00 or greater is required for operation.