Service manual

Guide to ASTRO™ Digital Radios
There’s also a Q53 FPP FLASHport™ option which requires an external hardware key for
operation. This is similar to the aged JT 1000™ Jedi-series portable operation. Q53 is an option for non-
government users, however many have reported having no troubles ordering Q52, even if they’re not
qualified as government customers. It’s also said Q53 is required for the Radio Cloning feature.
The XTS 5000™ supports Type 1 encryption algorithms, which are used to convey secret and top-
secret communications exchanges. Proprietary UCMs (Universal Cryptography Modules) and
modifications to the vocon are required. Type 1 encryption modules are not available to the public.
Figure 6.3 Motorola Inc. XTS 5000™ screen display when Type 1 encryption algorithm is in use. Note the T1 indicator.
When the XTS 5000™ is transmitting an encrypted signal with a Type 1 algorithm, the LED
indicators also work much differently. On transmit, the LED will be a steady green. When receiving a
Type 1 transmission, the green LED turns on for 125 ms, then goes off for 125 ms, then on for 125 ms,
then off for 750 ms. When transmitting securely with a Type 1 algorithm with a low battery, the green
LED will light for 675 ms, and then remain off for 1350 ms. This behavior is identical when the radio is
transmitting securely with a Type 3 algorithm, except the LED is red instead of green in all instances.
The XTS 5000™ does not support older Type 4 algorithms (DVI, DVP) nor does it support the
auto-detection of DES-XL vs. DES-CFB in SecureNet receive operations.
Supported Type 3 algorithms include DES-OFB, DES-XL, DES-CFB (SecureNet only) and AES-256.
The XTS 5000™ may be key-loaded with a legacy Key-Variable Loader (KVL) such as the T3011DX,
the KVL3000™ and the KVL3000 plus™. The XTS 5000™ is capable of holding up to 48 keys (16 of those
being type 1 keys).
The XTS 5000™ utilizes the same KVL cable as other Jedi-series radios; the TDN9390D.