US Army Signal Corps Radio equipment |
SCR 131
Pack;
loop , telegraph set using a regenerative receiver and Hartley oscillator
transmitter. Can be carried by two men. |
Frequency range Transmitter :
mc. Frequency range lf Receiver: mc Frequency range hf receiver: mc Frequency control : Mo Power output : Principal Components: |
SCR 161
Pack;
loop telegraph set using a regenerative receiver and Hartley oscillator
transmitter. Can be carried by two men. |
Frequency range Transmitter : mc. Frequency range lf Receiver: mc Frequency range hf receiver: mc Frequency control : Mo Power output : Principal Components: |
SCR 171
Ground,
transportable; intended for command communication use between Division
Headquarters and Brigade and Regiments. Transported by vehicle. |
Frequency range Transmitter : mc. Frequency range lf Receiver: mc Frequency range hf receiver: mc Frequency control : Mo Power output : Principal Components: |
SCR 177A Ground transportable; used between tactical field units. It's transported in vehicles or cargo aircraft. Ground,
transportable; used between tactical field units. Carried in vehicle or
cargo aircraft. Limited Standard. Replaced
by SCR-l77-B. Used by Sig.C, CAC, TD.
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Frequency range Transmitter:
0.4-4.0 mc. Frequency control : Mo Power output : Principal Components: |
SCR 177B Ground transportable; used between tactical field units and as a ground set in ground-to-plane communication. It's transported in vehicles or cargo aircraft. Ground,
transportable; used between tactical field units and as ground set in
ground-to-plane communication. Two receivers. Transported by vehicle or
cargo aircraft. Used by Sig.C, AAF, CAC, TD.
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Frequency range Transmitter :
0.4-4.0 mc. Frequency range lf Receiver: 0.15-1.5 mc Frequency range hf receiver: 1.5-18.0 mc Frequency control : Mo Power output : Principal Components: |
SCR 178 Radio set SCR 178 is a
ground transportable radio set, intended for point-to-point ad ground-to-plane
communication between artillery units and aircraft observation purposes. |
Frequency range : 2.4 to 3.7 mc. Frequency control : Mo Power output : cw 5 Watt, voice 2 Watt Principal Components: |
SCR 179
Pack;
same as SCR-178 except carrying cases have pack saddle hangers for
transportation by animal. |
Frequency range : 2.4 to 3.7 mc. Frequency control : Mo Power output : cw 5 Watt, voice 2 Watt Principal Components: |
SCR 188
Ground,
transportable; used for ground-to-ground or ground-to-air communication.
Transported by vehicle or cargo plane . Limited Standard |
Frequency range : Transmitter 1.5 to 12.5 mc, Receiver 1,5 to 18,0 mc.. Frequency control : Mo Power output : 75 Watt. Principal Components: |
SCR 188-A
Ground,
transportable; used for ground-to-ground, or ground to-air communication.
Intended for semi-fixed use inside of buildings where commercial AC power
is available, can be operated in an emergency from the gasoline engine
driven generator supplied. Control Unit RM-12 and Control Unit RM-13 are
components of Remote Control Equipment RC-47. All components of RC-47 are
supplied with this radio set.
Can be remotely controlled over 5 Mi. of Wire W-101-B. Transported by
vehicle or cargo plane. |
Frequency range : Transmitter 1.5 to 12.5 mc, Receiver 1,5 to 18,0 mc.. Frequency control : Mo Power output : 75 Watt. Principal Components: |
SCR 193 Radio set SCR 193 is a
vehicular set designed for two-way communication between moving or stationary vehicles,
using cw, tone and voice signals over distances ranging from approximately 15 to 30 miles
moving, and approximately 20 to 60 miles stationary, depending upon type of signal used |
Frequency range : Transmitter 1.5 to 6.2 mc, Receiver 1,5 to 18,0 mc.. Frequency control : Mo Power output : 75 Watt. Principal Components: |
SCR 194
Pack;
walkie-talkie, provides communication over relatively short distances. Two
tube transceiver consisting of modulated oscillator/super regenerative
detector and modulator/audio amplifier. Used for training purposes and
special projects. Limited Standard.
Replaced by SCR-609 and SCR-610. |
Frequency range : Transmitter mc, Receiver
mc.. Frequency control : Power output : Principal Components: |
SCR 195
Pack
and vehicular; two tube transceiver consisting of modulated
oscillator/super regenerative detector and modulator/audio amplifier. Used
for training purposes and special projects. Replaced by SCR-609 and
SCB-610 |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 197
Ground,
mobile; high power radio station. For use at an Air Force base or with
large field units. Transmitter Installed
In Truck K-18. 3 receivers, plus
monitor, installed in Trailer K-19 . Switch selection of master oscillator
or any one of five crystal frequencies. Provision for installation of
telephone switchboard, teletype and typewriters in trailer K-19.
Transmitter can be remotely controlled using voice, tone or CW operation
up to a distance of 7-1/2 Mi.
of Wire W-110-B. Limited Standard. |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 203
Pack;
low power short range highly portable command set designed to clamp on a
Phillips Pack Saddle for animal-pack transportation and operation. Limited
standard. |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 209
Vehicular;
for use in combat and scout cars equipped with a 12 volt, 180 ampere-hour storage
battery and a 50-ampere generator. Limited Standard. |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 210
Vehicular;
receiver only; for use In Signal Corps school and Armoured Force
replacement training center or for installation in any vehicle requiring a
separate receiver. Limited Standard. |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 244 Radio
set SCR 244 consists of a superhetrodyne receiver and a external power
supply unit. The receiver uses a conventional circuit and is designed for
the reception of c-w, a-m, or tone signals with either manual or automatic
control. |
Frequency range : 0,54 to 20,0 mc..
Principal Components: |
SCR 245
Vehicular;
for providing communication between stationary or moving vehicles equipped
with a 12-volt, 180 ampere-hour storage battery with a 50-ampere
generator. Tuning unit TU-25-A, covering frequency range 3.5 to 5.25 Mc,
issued only to Cavalry. Switch selection of master oscillator or any one
of four crystal frequencies. |
Frequency range : Transmitter mc, Receiver mc.. Frequency control : Power output : Principal Components: |
SCR 281 Radio
set SCR 281 consists of an a-m radiotelephone transmitter and receiver
designed for operation on coastal and harbor vessels or in land stations
for communication with such vessels. |
Frequency range (transmitter &
receiver): 1,7 to 2,75 mc.. Frequency control : X-tal Power output : 25 Watt Principal Components: |
SCR 284 Radio set SCR 284 is a
command set to be used either in a vehicle or on the ground for communication principally
between Rifle Regiment and its Battalion in the various phases of combat. For pack
operation, carried as a three man load. When used as a ground, transportable set it may be
desirable to supply a 6Volt storage battery for operation of power converter PE-104 rather
than to operate hand generator receiving. |
Frequency range : 3.8 to 5.8 mc Frequency control : Mo (X-tal calibrated) Power output : CW 20 Watt, R/T 8 Watt Principal
Components: Special thanks to Paul Thekan for the lid. |
SCR 288
Pack
and ground, transportable; carried in a vehicle or as a two man load.
Temporary replacement for SCR-l3l, SCR-161 and
SCR-171. Limited Standard. |
Frequency range (transmitter &
receiver): mc.. Frequency control : Power output : Principal Components: |
SCR 293 Radio set SCR 293 is a
short range vehicular set designed to provide two-way fm voice communication between
mobile units. This set was developed particularly for use in light tanks and scout cars. |
Frequency range : 20 to 27.9 mc. Frequency control : Crystal Power output : High 25 Watt, Low ˝ Watt Principal
Components: |
SCR 294
Vehicular;
receiver only of SCR-293. Installed in tank and scout cars. The preset channels
are limited to adjacent 100kc. channels which may be selected by a switch
inside of the receiver. Limited standard. |
Frequency range : 20 to 27.9 mc. Frequency control : Crystal Principal Components:
Receiver BC 499 |
SCR 298 Radio set SCR 293 is a
fm, 25 watt set designed for installation and operation in a vehicle, and
provides 2-way voice communication. |
Frequency range : 20 to 28 mc. Frequency control : Crystal Power output : 25 Watt Principal
Components: |
SCR 299
Ground
, mobile ; high power radio station for providing communication either
from a stationary position or while moving at relatively high speeds over
rough roads. May be remotely controlled up to a distance of one mile using
the two telephones EE-8 end Wire W-110-B supplied. The remote control
equipment provides for remotely keying or voice modulating the
transmitter, remotely listening to Receivers BC-312 and BC-342 and
communicating with the operator in the radio station who assists in the
foregoing operation. A noiseless portable typewriter is included. A
half-wave doublet antenna kit has been made available for improving sky
wave transmission, thus increasing the range and reliability of operation
of the radio set when at a fixed location. (Transmitter of SCR-299-F
covers frequency range of 2.0-12.0 Mc.) Frequency conversion kite are
available to extend the transmitter frequency range. Freq. Conversion Kit
MC-509 gives coverage down to 1 Mc. Freq. Conversion Kit MC-516 given
coverage to 12 Mc. Freq. Conversion Kit MC-517 give coverage to 18 Mc.
Limited Standard |
Frequency range : Frequency control : Power output : Principal
Components: |
SCR 300 Radio set SCR 300 consists of an 18-tube, low power, dry battery operated portable radio receiver and transmitter. It is designed for fm, two way communication over short distances. It is primarily intended as a walkie-talkie for foot combat troops. The complete station weight is almost 40 pounds. Pack;
designed primarily for “back-pack” or “on-ground” operation,
providing two-way communication over short ranges . The short whip antenna
gives less distances range than the half-wave whip. Ground plane Antenna
Equipment RC-291 is available for use with this set for increasing the
distance range obtained by virtue of the increase in antenna height. |
Frequency range : 40 to 48 mc. Frequency control : Mol Power output : 0,3 Watt Principal
Components: |
SCR 399
Ground,
mobile; high power radio station for providing communication either from a
stationery position or while moving at relatively high speeds over rough
roads. Installed in Shelter HO-l7 combined with power plant normally
carried in cargo trailer K-52. Shelter HO-17 may be mounted on a 2-1/2 ton
6 x 6 cargo truck (not a component) for vehicular operation, or on level
ground for fixed operation. May be remotely controlled up to a distance of
one mile using the two Telephones EE-8 and Wire W-110-B supplied. The
remote control equipment provides for remotely keying or voice modulating
the transmitter , remotely listening to Receivers BC-312 and BC-342 and
communicating with the operator in the radio station who assists in the
foregoing operations. A noiseless portable typewriter is included. A
half-wave doublet antenna kit is included for improving sky wave
transmission, thus increasing the range and reliability of operation when
at a fixed location. Frequency conversion kit MG-509 is available to
extend the transmitter frequency range down to 1.0 Mc. Used
by Sig.C, AAF, AF, CAV, FA, IBF. |
Frequency range : Tx 2 to 18 mc (3 channels) Rx 1.5 to 18 mc. Frequency control : Mo or crystal Power output : CW 400 Watt, Voice 300 Watt |
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Principal Components: |
SCR 499
Air
transportable; high power radio station similar to SCR-399, except no
shelter or trailer provided and components are packed for transportation
by air. May be remotely controlled up to a distance of one mile using the
two Telephones EE-8- and Wire W-110-B supplied. The remote control
equipment provides for remotely keying or voice modulating the
transmitter, remotely listening to receivers BC-312 and BC-342 and
communicating with the operator in the radio station who assists in the
foregoing operations. A noiseless portable typewriter is included. A
half-wave doublet antenna kit is included for improving sky wave
transmission, thus increasing the range and reliability of operation of
this radio set. When installed in a 1/4 ton, 4x4 truck Antenna Equipment
RC-293 (end fed 3/4 wave) is supplied, which together with counterpoise
CP-15, is used instead of doublet kit . Frequency conversion Kit MC-509 is
available to extend the transmitter frequency range down to 1.0 Mc.
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Frequency range : Tx 2 to 18 mc (3 channels) Rx 1.5 to 18 mc. Frequency control : Mo or crystal Power output : CW 400 Watt, Voice 300 Watt |
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Principal Components: |
SCR 506
Vehicular;
command radio set, designed for installation in tanks, amphibian cars,
personnel carriers and cars to provide communication between these vehicle
and airplanes or base stations. |
Frequency range : 2.0 to 4.5 mc. Frequency control : Mo Power output : CW 50-90 Watt, Voice 10-25 Watt Principal
Components: |
SCR 508 Radio set
SCR 508 is designed for installation and operation in combat vehicles such as tanks, scout
cars, half-tracks, command cars, or any other authorized vehicle.
This set consists basically of Radio transmitter BC-604 and two Radio Receivers BC-603. Radio
transmitter BC-604 operates on 10 preset frequencies.
Interphone control box BC-606 provides separate control and connection facilities for a
microphone and a headset. Several control boxes may be connected in multiple, if desired.
Radio set SCR 508 is very similar to Radio set SCR 528, main difference is that Radio set
SCR 508 consists two receivers BC-603. |
Frequency range : 20.0 to 27.9 mc. Frequency control : Crystal Power output : 30 Watt Principal Components: |
SCR 509 Radio set
SCR 509 is a low power, dry battery operated, fm pack designed for two way
voice communication over short ranges. |
Frequency range : 20 to 27 mc. Frequency control : Crystal Power output : 1,8 Watt Principal Components: |
SCR 510
Pack
and vehicular; low power. Same as SCR-509 with additional components for
use with 6-volt or 12-volt vehicular storage battery and equipped with
shock mounts for mounting in a vehicle. Used
by AF, FA. |
Frequency range : 20 to 27 mc. Frequency control : Crystal Power output : 1,8 Watt Principal Components: |
SCR 511
Packed
and vehicular; for operation from dry battery or storage battery.
Installed In vehicle or carried as guidon by man on horseback or (using
dry battery) as one man load. When used with PE-157, the self-contained
2-volt storage battery can be recharged from a 6-volt or 12-rot storage
battery. Spare tuning unit carried in chest unit and is readily available
for a quick frequency change. |
Frequency range : . Frequency control : Power output : Watt Principal Components: |
SCR 528 Radio set
SCR 528 is designed for installation and operation in combat vehicles such as tanks, scout
cars, half-tracks, command cars, or any other authorized vehicle.
This set consists basically of Radio transmitter BC-604 and Radio Receiver BC-603. Radio
transmitter BC-604 operates on 10 preset frequencies.
Interphone control box BC-606 provides separate control and connection facilities for a
microphone and a headset. Several control boxes may be connected in multiple, if desired. |
Frequency range : 20.0 to 27.9 mc. Frequency control : Crystal Power output : 30 Watt Principal Components: |
SCR 536
Pack;
very short range "Handle-Talkie'. Lightweight, self-contained two-way
voice audio set for parachute troops. |
Frequency range : mc. Frequency control : Power output : Watt Principal Components: |
SCR 538
Vehicular;
receiver only of SCR-528 plus a separate interphone amplifier. Installed
in tank and armoured car. Interphone amplifier provides communication for
personnel in installation where noise level is high. |
Frequency range : mc. Frequency control : Power output : Watt Principal Components: |
SCR 543 Radio set SCR 543 is a
medium range command set for use in vehicle or as a field station. It is equipped with its
own gasoline driven source of power. The receiver may be operated from a storage battery
when the gasoline-driven generator is not operating. The transmitter and power unit may be
controlled from a distance of 18 feet with Remote Control Unit RM-21 |
Frequency range : 1.68 to 4.45 mc. Frequency control : Transmitter X-tal, Receiver X-tal or variable Power output : 45 Watt. Principal Components: |
SCR 593 Radio set SCR
593 is a self contained, push button controlled radio receiver, designed
for portable or vehicular operation. |
Frequency range : 2 to 6 mc.
Principal Components: |
SCR 607 Radio set SCR
607 consists of radio receiver BC-787, which is a three band
superhetrodyne receiver designed for mobile or fixed station use. The set
is designed for interception and monitoring use, remote control may be
used for stand-by reception. |
Frequency range : 27.8 to 143 mc.
Principal Components: |
SCR 608 Radio set SCR
608 is designed to provide fm radio telephone facilities. It may be
installed an operated in combat vehicles such as tanks, scout cars, half
tracks, command cars, or any other authorized vehicles. |
Frequency range : 27.0 to 38.9 mc. Frequency control : Transmitter X-tal Power output : 20 Watt. Principal Components: |
SCR 609 Radio set SCR
609 is a low power fm set which is designed to provide two-way
communication over short distances from a stationary ground position.
Power for the operation of the units is supplied by dry batteries. |
Frequency range : 27.0 to 38.9 mc. Frequency control : Crystal Power output : 1,3 Watt. Principal Components: |
SCR 610 Radio set SCR
609 is a low power fm set which is designed for installation and operation
in vehicles and to provide two way communication over short distances. |
Frequency range : 27.0 to 38.9 mc. Frequency control : Crystal Power output : 1,3 Watt. Principal Components: |
SCR 614 Radio set SCR 614 is a lf communication set used for intercept purposes. The principal components of this set are the radio receiver BC-969. Radio set SCR-614 may be operated on ground as a fixed station or installed and operated in vehicles. |
Frequency range : 0.015 to 0.15 mc.
Principal Components: |
SCR 616 Radio set SCR
616 is a superheterodyne receiver. Separate antenna inputs and rf sections
for each band are incorporated in the receiver. The antenna consists of
two biconical dipoles, one for each frequency band. |
Frequency range : 145 to 600 mc. Frequency control : Manual Principal Components: |
SCR 619 Radio set SCR
609 is a low power fm set. Although designed for field operation, the set
may be operated from a 6, 12, or 24Volt vehicular supply system with
modification in the use of components. The set may be operated by
untrained personnel, may be quickly and easily changed to various types of
operation, and is adaptable to emergency use is close combat areas. |
Frequency range : 27.0 to 38.9 mc. Frequency control : Crystal Power output : 1,5 Watt. Principal Components: |
SCR 624
Air
transportable; for ground-to-plane, or
ground-to-ground communication. Control Box BC-ll75 is used for master control and channel selection at
the set. Control Box BC-ll75 provides send-receive control and channel
selection at a remote point up to 500 feet from the station. Control Box
BC-1176 provides only send- receive control from remote point up to 2 mi.
over telephone lines. The control boxes also provide connection for
land-phone communication between any two of the three locations utilizing
Telephone EE-8. similar to SCR-522 and SCR-542 airborne sets except for
power source and additional equipment for ground use. |
Frequency range : mc. Frequency control : Power output : Watt. Principal Components: |
SCR 628 Radio set SCR
628 is designed to provide fm radiotelephone facilities. It may be
installed and operated in combat vehicles such as tanks, scout cars,
command cars, or any other authorized vehicles. |
Frequency range : 27.0 to 38.9 mc. Frequency control : Crystal Power output : 20 Watt. Principal Components: |
SCR 678 Radio set SCR
678 is an fm, general purpose, vehicular radio receiving set. |
Frequency range : 27.0 to 38.9 mc.
Principal Components: |
SCR 694 Radio set SCR
694 is a light weight, low power, man-transportable, front line command
set which provides two way radio telephone and telegraph communications.
It can be used as a portable field set or installed and operated in
vehicles. Radio set SCR-694 is particularly adapted to amphibious or
jungle operation. |
Frequency range : 3.8 to 6.5 mc. Frequency control : MO, Crystal Power output : 2-17 Watt. Principal Components: |
SCR 694-AW
Pack;
ground, transportable; and vehicular; provide communication for parachute
troops. Switch selection of master oscillator or either of two crystal
frequencies. Transported by vehicle or man pack. Limited production. |
Frequency range : mc. Frequency control : Power output : Watt. Principal Components: |
SCR 704 Radio set SCR
704 consists of a superheterodyne receiver and an external power supply
unit. The receiver uses a conventional circuit and is designed for the
reception of cw, am, or tone signals, with either manual or automatic
control. Primarily intended for fixed station use, however vehicular
installation may be made. |
Frequency range : 1.25 to 40.0 mc.
Principal Components: |
SCR 808 Radio set SCR
808 is
an fm vehicular set intended for use in mobile Coast Artillery batteries and Military
Police units. The set uses two Radio Receivers BC 923 and one Radio Transmitter BC 924,
and is provided with four sets of tuning controls and four preset channels. |
Frequency range : 27.0 to 38.9 mc in 120 channels Frequency control : Crystal calibrated, master oscillator. Power output : High 30 to 35 Watt, Low 2 Watt Principal
Components: |
SCR 828 Radio set SCR 828 is
an fm vehicular set intended for use in mobile Coast Artillery batteries and Military
Police units. The set uses one Radio Receivers BC 923 and one Radio Transmitter BC 924,
and is provided with four sets of tuning controls and four preset channels. |
Frequency range : 27.0 to 38.9 mc in 120 channels Frequency control : Crystal calibrated, master oscillator. Power output : High 30 to 35 Watt, Low 2 Watt Principal
Components: |