Regimental Division,
Office Chief of Signal

United States Army Signal Center, Fort Gordon, GA
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Commercial Radio Equipment WWII ERA

The marriage between the Army and commercial radio companies played a key role during World War II.

TRANSMITTING EQUIPMENT

Type Freq Range Xmtr output
(watts)
Type
Emission
Freq
Control
Remarks
Aircraft
Accessories
Corp. 500 B
0.272 to 0.4
and
1.6 to 10.0
1,000 A1, A2,
and A3
xtal Point to point ground to air
and airport control. Includes RF unit, modulator and power supply in one cabinet. Two preset channels.
Federal FT-300 2.0 to 20.0 3,000 A1, A3 xtal Point to point. Eight transmitters are normally used per rectifier and modular. Dial selection of desired channel.
Pan Amer Airways 12-ACX-2 1.6 to 24.0 1,200 A1, A3 xtal Point to point. Push button selection  of either of two preset channel frequencies.
Pan Amer Airways 12-GLX-2 0.26 to 1.75 1,200
________
750
A1
_____
A2, A3
xtal Point to point. And homing push button selection  of either of two preset channel frequencies.
Pan Amer Airways RFA-50 5.0 to 50 5,000 A1, A2,
and A3
----- Point to point. Used as amplifier for Pan American Airways 12-GLX-2 Transmitter. No longer produced (APR 1945).
Press Wireless
PW-10LF
0.11to 0.14 10,000 A1 mo Point to point radio teletype.
Temco 250-GSC 2.0 to 16.0 200 A1,A2
and A3
mo or xtal Point to point and ground to air. Switch selection of master oscillator or any one of four crystal frequencies.
Temco 1000-AG-CW 2.0 to 16.0 1,000 A1 xtal Point to point and ground to air. Six preset channels. no longer procured (April 1945).
Western Electric Company
D-151249 (Pan Amer. Airways 4WTFA)
1.6 to13.2 350
_____

100

A1
___

A3

xtal Point to point and ground to air. Relay section of either two preset channel frequencies No longer procured.
Wilcox 96 A 2.0 to 12.0 2,500 A1, A3 xtal Point to point and radio-teletype. Eight transmitters are normally used per rectifier. No longer procured. TM 11-2671.
Wilcox 96 C and 96C-3 2.0 to 20.0 3,000 A1, A2 and A3 xtal Point to point and radio-teletype. Four transmitters are normally used per rectifier. No longer procured. TM 11-803 and TM 11-2671.
Wilcox 96-200A or B 0.195 to 0.525 2,000 A1, A2 and A3 mo or xtal Point to point and homing. No longer procured. TM 11-802.

COMBINED TRANSMITTING AND RECEIVING EQUIPMENT

type Freq
range
(mc)
Rated
Xmtr
output 
(watts)
Type 
emission
Type
Mod
Freq
control
Remarks
Collins
18-Q
1.5 to 12.0 25
__

10

cw
___

Voice

am mo 
or
xtal
Transmitter and receiver. Point to point and ground to air. Switch selection of five crystal frequencies. Same as Navy Model TCS.
Jefferson
Travis 350A
1.5 to 12.0 50
___

40

cw
___

voice

am mo
or xtal
Transmitter-receiver equipment for fixed mobile communication. Switch selection of four crystal frequencies.
Link
25-FMTR
30 to 40 25 voice fm xtal Commercial police car equipment for providing 2-way mobile communication. Similar to SCR-298.
Link
35-FMTR
30 to 40 50 voice fm xtal Commercial police car equipment for providing 2-way mobile communication. Similar to SCR-298-C.
Link
50 UFS
30 to 40 50 voice fm xtal Self-contained transmitter, receiver and power supply. For fixed control station in mobile net.
Link
1498
70 to 100 50 voice fm xtal Self contained transmitter, receiver and power supply. For providing radio telephone communication when essentially line-of-sight operation is possible.
Link
1505
70 to 100 250 voice fm xtal Self contained transmitter, receiver and power supply. Similar to Link1498 except provides approx. 7-db greater power output.
AN/TRC-13
Motorola
FTMR-50 BW
30 to40 50 voice fm xtal Commercial police type of transmitting and receiving equipment for fixed control station in mobile net.  Transmitter and receiver have built-in power supply.
AN/VRC-2
Motorola
FMTR-25 VM or
FMTR-30 DW
30 to40 25 voice fm xtal Commercial police type of equipment for providing 2-way  mobile communication.  Separate transmitter and receiver, each with built-in power supply.  TM 11-607.
AN/VRC-4 xmtr
1.7 TO 8.7
rcvr
0.19 to 0.51
   &
1.7 to8.7
25 cw
___

voice

am mo or xtal Transmitting and receiving equipment for crash truck use. Switch selection of naster-oscillator (4.0 to 7.0 mc) or any one of four crystal frequencies. In addition, receiver is tuneable from 0.19 to 0.51 mc.  TM 11-829.

RECEIVING EQUIPMENT

type freq (mc) type
output
emission
rec
freq
control
remarks
AN.FRR-3A
(Press Wireless
diversity
2.4 to 23.0 into
AN/FGC-1
A1, A2, A3
& special
xtal Point to point and radio-teletype. Balanced input. Five preset channels. Tuning range may be extended to 26 mc if desired.  Used with Radio Teletype Terminal Unit AN/FGC-1. TM 11-872A.
AN/GRR-2
Hallicrafters
SX-28
0.55 to 42 speaker or
headset,
500 or 5,000
ohms
A1, A2, 
& A3
manual
tuning
Point to point and ground to air. Balanced input. Table model. Built-in power supply. Separate loud speaker.  TM 11-874.
AN/GRR-3
(National
NC-100-ASC
0.2 to 0.4 &
1.5 to 30
speaker or
headset
A1, A2, 
& A3
manual
tuning
Point to point and ground to air. Balanced input. Table model. Built-in power supply. Separate loud speaker. 
Federal
128-AY
0.015 to
0.65
speaker or
headset
A1, A2, 
& A3
manual
tuning
Marine or fixed station service.  Unbalanced input. Table model. Built-in power supply. TM 11-858. 
Hallicrafters
S-22-R
0.11 to 1.5 & 1.7 to 18.0 built in speaker or
headset,
A1, A2, 
& A3
manual
tuning
Marine or fixed station service.  Unbalanced input. Table model. Built-in power supply. 
Hallicrafters
S-27
27 to 145 speaker or
headset,
500 or 5,000
ohms
A1, A2, 
& A3
manual
tuning
Airport control and air warning. Balanced input. Table model. Built-in power supply. 
Hallicrafters
S-29
0.54 to 30.5 built in speaker or
headset,
A1, A2, 
& A3
manual
tuning
Highly portable for misc. monitoring. Uses built-in telescoping whip antenna.
Hallicrafters
S-36
27.8 to 143 speaker or
headset,
500 or 5,000
ohms
A1, A2, 
A3 & FM
manual
tuning
Airport control and air warning. Similar to Hallicrafters S-27 receiver except treated  for tropical use. Balanced input. Table model. Built-in power supply.
Hammarlund
SP-110-LX
(Super Pro)
(BC-779-(  ))
0.1 to 0.4 & 2.5 to 20 speaker or
headset,
600 or 8,000
ohms
A1, A2, 
& A3
manual
tuning
Airport control point to point and ground to air. Balanced input. Modified table model. Separate power supply. Operates on 25-cycle supply or batteries. TM 11-866.
Hammarlund
SP-210-LX
(Super Pro)
(BC-779-(  ))
0.1 to 0.4 & 2.5 to 20 speaker or
headset,
600 or 8,000
ohms
A1, A2, 
& A3
manual
tuning
Airport control point to point and ground to air. Balanced input. Rack mounting. Separate power supply. Operates on 60-cycle supply or batteries. TM 11-866.
National
HRO
1.7 to 30 speaker or
headset
A1, A2, 
& A3
manual
tuning
Point to point and ground to air. Balanced input. Modified table model. Separate power supply. Uses plug-in coils which are inserted as a unit.
Wilcox
CW3
      xtal  
Wilcox
4 CW3-D
      xtal  
Wilcox F3       xtal  

TACTICAL EQUIPMENT
U.S. NAVY

type freq
range
mc
rated 
xmtr
output
watts
type
emission
freq 
control
remarks
MM 2 xmtrs, 0.35 to 1.0 &3.0 to 18.1
2 revrs
0.2 to 2.0 &
2.0 to 20
100
___

25
___

25

cw
___

tone
___

voice

mo Portable transmitting and receiving equipment composed of model TBW transmitting equipment and model RBM receiving equipment. Intended, primarily, for use in establishing an advance base radio station.
MU
MV
MW
MX
MAB
2.3 to 2.8
2.8 to 3.3
3.3 to 3.9
3.9 to 4.6
2.3 to 4.6
0.2 voice xtal Lightweight battery operated, two-way communication set for paratroopers.  This series was originally designated MP but was later designated MU, MV, MW and MX according to frequency range.  The MAB covers the frequency range of the series.
RBM, -1
to -3
0.20 to2.0 &
2.0 to 20.0
__ cw
--
tone
----
voice
Manual tuning Semi-portable receiving equipment intended for use where transportation over wet and rough country is to be expected.  Includes two superheterodyne receivers; normally used with semi-portable transmitting equipment model TBW.
RBQ 132 TO 156   __ voice
----
tone
xtal Single frequency superheterodyne shore receiver used with model TDG transmitter and 42A1 carrier telegraph systems as a receiving terminal of a point to point v-h-f link
RBZ 2.0 to 5.8   ---- tone manual tuning Lightweight battery-operated personal receiver for shore use. Superheterodyne radio carried on operator's chest in canvas holder; uses steel helmet as an antenna
RCK 115 to 156   ___ voice xtal Receiver for use on aircraft carriers and at shore stations for communication between aircraft and ship and shore stations.  Selection of four operating frequencies by means of switch plus ganged tuning or r-f circuits. Designed To reduce radiation from oscillator.
TBS-3 60 TO 80 50
--
50
voice
----
tone
  Transmitting and receiving equipment for installations on surface craft or submarine for intercommunication between task forces, convoy vessels and others.
TBW -1 0.35 to 1.0 &
3.0 to 18.1
100
---
25
---
25
cw
---
voice
----
tone
mo Portable transmitting equipment; two transmitters; intended primarily for use in establishing an advance base station.  Commonly used with receiving equipment model RBM and when so used is known as Navy model MM portable transmitting and receiving equipment.
TBX, -1 to -3 xmtr
2.0 to 4.525
revr,
2.0 to 8.0
9
---
3
cw
----
tone
mo
or
xtal
For ship and shore communication.  Major units are supplied with canvas pack carrying cases.  Transmitter operates from hand-driven generator and receiver from battery pack.
TBY, -1,
-2
28 to 80 0.5 voice
----
tone
mo
(xtal
cal.)
Pack transmitting and receiving equipment intended primarily for use by Marines.  May be operated by one man either in the field or while being transported.
TCS,-1 to -5 1.5 to 12.0 25
----
15
cw
---
voice
mo
or
xtal
Semi-portable equipment designated according to commercial standards.  Used extensively on patrol and landing craft, reconnaissance vehicles, and for similar purposes.  Switch selection of any one of four crystal controlled frequencies in each of the three bands.
TCY 0.5 only 5 tone mo Portable emergency lifeboat transmitter for use primarily by inexperienced personnel.
TDG 132 to 156 12 voice xtal Transmitting equipment used with model RBQ receiver and 42 A1 carrier telegraph system as a transmitting terminal of a point-to-point v-h-f circuit.

AIRBORNE EQUIPMENT

type frequency rated xmtr output (watts) type emission frequency control preset channels power source remarks
AN/ARC-1 100 to  156 6 VOICE XTAL 10  28V, DC For 2-way plane-to-plane and plane to ground communication. Nine main channels are provided plus one guard channel which may be simultaneously monitored.
AN/ARC-4 140 to 144 6 voice xtal 4 28v, dc
or
14v, dc
For 2-way plane-to-plane and plane to ground communication.  Three main channels are provided plus one guard channel  on 140.58 mc which may be simultaneously monitored.

Last modified on:
April 04, 2012

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