Failure responsive alternate amplifier and bypass system for com

Details Failure responsive alternate amplifier and bypass system for com Failure responsive alternate amplifier and bypass system for com

1994-03-01

1995-05-23

Mottola, Steven

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

330 51, H03F 368

Patent

active

054184908

ABSTRACT:
A communications amplifier system which includes a primary preamplifier circuit, a secondary preamplifier circuit and a bypass circuit mutually exclusively selectable through a relay switching means which is automatically activated to bypass the primary preamplifier with the secondary preamplifier or the secondary preamplifier with the bypass circuit in the event of malfunction. In the standby mode, the secondary preamplifier is not connected to DC power or RF signal input.

REFERENCES:
patent: 1396745 (1921-11-01), Haddock
patent: 1472455 (1923-10-01), Blattner
patent: 1525054 (1925-02-01), Toomey
patent: 2229108 (1941-01-01), Maggio et al.
patent: 2647176 (1953-07-01), Daly
patent: 2773944 (1956-12-01), Karlson
patent: 3204062 (1965-08-01), Foster et al.
patent: 4494077 (1985-01-01), Fukaya et al.
patent: 4565972 (1986-01-01), Kaegebein
TX RX Systems Inc., 800 MHz Tower Mounted Receiver Multicoupler Model 421-86-01-(XX), System Design, no date.
Decibel Products, QUADRA.TM. The Fail-Safe Tower Top Amp System, 1992.

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