Secure trunked communications system

Details Secure trunked communications system Secure trunked communications system

1986-10-31

1989-11-21

Cangialosi, Salvatore

Cryptography

Cryptanalysis

380 34, 380 49, H04K 100

Patent

active

048827517

ABSTRACT:
A trunked communications system that accommodates encrypted secure communications. The system uses both non-encrypted message detectors and encrypted message detectors to assure that the trunked central control unit receives the signals it must receive in order to properly allocate and maintain channel assignments.

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Instruction Manual 68P1043E50-B for a Trunked SYNTOR X RM Two-Way Radio (806-870 MHz at 35 watts) by Motorola, Inc.--1/15/81-PHI.
Instruction Manual 68P81066E60-A for a Trunked Radio System Central Controller (Privacy Plus Model T5004A and Smartnet Model T5076A) by Motorola, Inc.--3/15/86--PHI--Revision s SMR-5164--9/30/86 and SMR-5089--4/30/86.
Instruction Manual 68P81063E20-0 for a Trunked System Central Interconnect Terminal (Models T4051 and T4052) by Motorola, Inc.--9-15-83--PHI.
Instruction Manual 68P81031E45-D for a MICOR Base and Repeater Station (851-866 MHz Transmit and 806-821 MHz Receive) by Motorola, Inc.--Revision SMR-4965 8/16/85.
Instruction Manual 68P81038E85-B for a MICOR Trunked Repeater (851-866 Transmit and 806-821 MHz Receive) by Motorola, Inc. 8/9/85--UP--Revisions SMR-5149--9/9/86 and SMR-4946--10/28/85.

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