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Secure Modules
8
Introduction The secure modules are designed to digitally encrypt and decrypt voice
and ASTRO data in ASTRO SABER™ radios. This section covers the
following secure modules:
• NTN7770 • NTN1152
• NTN7771 • NTN1153
• NTN7772 • NTN1158
• NTN7773 • NTN1147
• NTN7774 • NTN1367
• NTN7329 • NTN1368
• NTN7332 • NTN1369
• NTN7331 • NTN1370
• NTN3330 • NTN1371
• NTN7370 • NTN8967
• NTN1146
NOTE: The secure modules are NOT serviceable. The
information contained in this chapter is only
meant to help determine whether a problem is due
to a secure module or the radio itself.
The secure module uses a custom encryption integrated circuit (IC)
and an encryption key variable to perform its encode/decode function.
The encryption key variable is loaded into the secure module, via the
radio’s universal (side) connector, from a hand-held, key variable
loader (KVL). The encryption IC corresponds to the particular
encryption algorithm purchased. The encryption algorithms and their
corresponding kit numbers are:
KITS:
DVP NTN7770
DES NTN7771
DES-XL NTN7772
DVI-XL NTN7773
DVP-XL NTN7774
DVI-XL & DVP NTN7329
DES-XL & DVP NTN7332
DES-XL & DVP-XL NTN7731
DVP & DVP-XL NTN7330
DVP-XL & DVI-XL NTN7370
All, except DVP
NTN8967
TANAPAS:
DVP
NTN1146
DES NTN1152
DES-XL NTN1153
DVI-XL NTN1158
DVP-XL NTN1147
DVI-XL & DVP NTN1367
DES-XL & DVP NTN1368
DES-XL & DVP-XL NTN1369
DVP & DVP-XL NTN1370
DVP-XL & DVI-XL NTN1371
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