Telecommunications – Transmitter and receiver at same station – With frequency stabilization
Patent
1978-08-08
1981-03-03
Bookbinder, Marc E.
Telecommunications
Transmitter and receiver at same station
With frequency stabilization
455 77, 455 87, 455176, 455180, 455183, 455185, 455200, H04B 140
Patent
active
042545048
ABSTRACT:
A transceiver is controlled in operation by a programmable read only memory (PROM). The memory is accessed directly via a series of switches and when accessed, provides output data necessary to control the operation of the transceiver by controlling the frequency, the output power level and the mode of operation, as well as providing data to prevent transmission of unauthorized frequencies. The memory permits rapid and reliable programming of the apparatus enabling an untrained operator to use the equipment with reduced risk of unauthorized operation.
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PR1010 Regional Crime Squad Radio Transceiver-A. D. Currah, Plessey Company Ltd., Int. Conf. on Comm. Eqpmnt. and Systems, Brighton, Sussex, England-Jun., 1976.
Carroll James C.
Lewis James P.
Bookbinder Marc E.
Hill Alfred C.
International Telephone and Telegraph Corporation
O'Halloran John T.
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