1
Cooper Martin, Dronsuth Richard W, Mikulski Albert J, Lynk Jr Charles N, Mikulski James J, Mitchell John F, Richardson Roy A, Sangster John H: Radio telephone system. Motorola, Parsons Eugene A, Gillman James W, September 16, 1975: US3906166 (240 worldwide citation)

A portable duplex radio telephone system includes at least one base station transmitter having a predetermined base transmission range, and a plurality of portable or mobile units each having a predetermined portable maximum transmission range predeterminately shorter than the base transmission rang ...


2
Mitchell John F, Richardson Roy A, Cooper Martin, Dronsuth Richard W, Mikulski James J, Sangster John H, Leitich Albert J, Lynk Charles N: Systeme radiotelephonique, Radio telephone system. Motorola, September 26, 1978: CA1039362

ABSTRACT A portable duplex radio telephone system includes basestation transmitters having a predetermined base transmissionrange, and a plurality of portable or mobile units each havinga predetermined maximum transmission range shorter than thebase transmission range. Satellite receivers are deploy ...


3
Dronsuth Richard W, Cooper Martin, Leitich Albert J, Lynk Charles N, Mikulski James J, Mitchell John F, Richardson Roy A, Sangster John H: Systeme radiotelephonique, Radio telephone system. Motorola, November 21, 1978: CA1042989

ABSTRACT A portable duplex radio telephone system includes basestation transmitters having a predetermined base transmissionrange, and a plurality of portable or mobile units each havinga predetermined maximum transmission range shorter than thebase transmission range. Satellite receivers are deploy ...