GRC-171

GRC-171 Transceiver Radio Set - A Medium Range UHF AM Transceiver Radio set built by Collins Radio Group/ Rockwell International, Cedar Rapids, Iowa. Used in ground radar stations for ground-air communications. Part of USAF Rivet Switch program in the 1970s to replace the aging vacuum tube technology radios with solid-state equipment.

GRC-171 Transceiver Radio

GRC-171 Transceiver Radio

Element

Value

Notes

Nomenclature

GRC-171

Variants

GRC-171(V)1. UHF AM transceiver.
GRC-171(V)2 UHF AM/FM transceiver.
GRC-171A(V)1 UHF AM transceiver.
GRC-171A(V)2 UHF AM/FM transceiver.
GRC-171A(V)4 UHF AM/FM transceiver. (compatible with Have Quick I).
GRC-171B(V)4 UHF AM/FM transceiver. (Have Quick I/II).
GRC-171C(V)4 UHF AM/FM transceiver. (Have Quick I only).
GRC-171D(V)4 UHF AM/FM transceiver. Configured for non-ECCM operation only

Manufacturer

Collins Radio Group/ Rockwell International, Cedar Rapids, Iowa

Type

UHF AM Radio Transceiver

IEEE Band

UHF

Frequency

225-399.975 MHz

Channels

7,000 @ 25 kHz spacing

Channel Spacing

25 kHz

Technology

All solid state

Power Output

20-watt AM carrier

Input Power

95 to 132 V ac; 189 to 264 V ac; 47 to 63 Hz; 380 to 420 Hz; single-phase.

Introduced

1973

Production

10,752 est

Final Cost

$100,000 est each

with all support equip

**GRC-171 Components** (edit list)
Component	Model	Quantity	Height	Width	Deep	Weight	Notes
Radio Set Control	C-7999/GRC- 171	1	2.62 in	3.25 in	4.5 in	0.69 lb
Radio Receiver-Transmitter	RT980/GRC-171	1	8.72 in	19.00 in	19.20 in	74.5 lb

Context

See Also:

US Radio Sets

Sources:

Winkler, David F., Searching the Skies: the Legacy of the United States Cold War Defense Radar Program, USAF Hq Air Combat Command, 1997, 192 pages, Pdf
T.O. 31R2-2GRC171-2 Service And Circuit Diagrams Radio Set AN/GRC-171 pdf

Links:

Forecast International GRC-171(V) - Archived 7/2006