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FRR/MRR/SRR Family of Receivers

This data is courtesy of Jon Pevner.  The same table in the SRR-series manual
lists only the SRR-11, 12, and 13/13A receivers.

TABLE 1-4. BASIC SIMILARITIES OF RADIO RECEIVING SETS AN/FRR,
AN/MRR, AND AN/SRR

Ref: NAVSHIPS Tech Manual 92211, AN/FRR-21, -22, -23
(edited for brevity)

MODEL FREQUENCY EMISSION POWER MECHANICAL REMARKS
COVERAGE TYPES SOURCE DESIGN
=========================================================================================
FRR-18 16-600 KHz A1 A2 F1 105/15/25 Metal Case Shore LF FSK service.
50-60 Hz Rack Mounted Crystal local osc.
or 400 Hz
-----------------------------------------------------------------------------------------
FRR-19 2-32 MHz A1 A2 A3 " " Shore HF FSK service.
F1 Crystal local osc.
-----------------------------------------------------------------------------------------
FRR-21 16-600 KHz A1 A2 A3 " " Shore LF communications.
F1
-----------------------------------------------------------------------------------------
FRR-22 .25-8 MHz A1 A2 A3 " " Shore MF communications.
F1
-----------------------------------------------------------------------------------------
FRR-23 2-32 MHz A1 A2 A3 " " Shore HF communications.
F1
-----------------------------------------------------------------------------------------
MRR-1 16-600 KHz A1 A2 F1 " Waterproof Mobile/Transportable LF
Case, portable
-----------------------------------------------------------------------------------------
MRR-2 .25-8 MHz A1 A2 A3 24 VDC* " Mobile/Transportable MF
F1 105/15/25 VAC
50-60 Hz
or 400 Hz
-----------------------------------------------------------------------------------------
MRR-3 2-32 MHz A1 A2 A3 " " Mobile/Transportable HF
F1
-----------------------------------------------------------------------------------------
SRR-11 16-600 KHz A1 A2 F1 105/15/25 Metal Case, Shipboard LF
50-60 Hz Table-top communications
-----------------------------------------------------------------------------------------
SRR-12 .25-8 MHz A1 A2 A3 " " Shipboard MF
F1 communications
-----------------------------------------------------------------------------------------
SRR-13/ 2-32 MHz A1 A2 A3 " " Shipboard HF
SRR-13A F1 communications
-----------------------------------------------------------------------------------------
*Separate power supply assembly required for 24 VDC operation

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