US Navy Shipboard HF Transceivers & Transmitter-Receivers

Shipboard HF/MF/LF Transmitters

VHF and UHF Transmitters and Transceivers

WW2 Transmitters and Transceivers

AN/SRC-16 Transceiver System (4 rcvr-xmtr units)

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SRC-16 Communications Central Control aboard DLG-33
photo thanks to W5JV
modern "Communications Central"

4 independent rcvr-xmtr channels
2-30mc, SSB/CW/NTDS, 500w PEP

 

AN/SRC-23
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The AN/SRC-23(V) is a single channel HF transmitter-receiver communications system which operates in the 2-30 MHz range. The transmitter-receiver is automatically tuned and capable of local or remote control in either simplex or duplex modes of operation for AM, CW, USB, LSB, ISB, AFTS, voice, or data. The equipment has a 1 KW power output; however, an alternate 5 KW RF power output may be obtained using a 5 KW linear power amplifier. 

Designed especially for shipboard installations, this transmitter-receiver group may also be used for shore-base installations and consists of eight basic units located within a cabinet. 

  • The front panel of the transmitter control unit provides the controls for manually selecting the modes of operation for the transmitter and amplifier group.
  • The receiver control unit provides controls for operating the receiver.
  • The frequency selector control unit provides the selector switches for selecting the desired operating frequency for the transmitter and receiver units.
  • The radiofrequency amplifier unit receives the signal from the transmitter and amplifies it to 1,000 watts.
  • The frequency standard unit is optional equipment, which may be installed in the cabinet when external frequency standard equipment is not supplied. It provides an unmodulated 100-kHz output frequency used for calibrating the radio transmitter and receiver. In case of power failure, an internal 28 VDC battery in this unit will automatically supply power for two hours.
  • The electrical equipment cabinet provides mounting space for all of the functional units and other equipment, such as a heat exchanger and blower for cooling the system, patch terminal strips, thermal alarm indicators, a warning panel, primary power circuit breaker, and interconnection system components.

The equipment is completely transistorized except for the use of two electron tubes. A frequency-synthesizer provides transmitter-receiver frequencies separated at 500 hertz intervals across the band. The AN/SRC-23(V) is a single-channel version of the fouróchannel service test NTDS (Naval Tactical Data System) AN/SRC-l6

AN/URC-7 transmitter-receiver
USCG

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AN/URC-8(XN-1)
R-627/URC-8
T-474/URC-8
Transmitter-Receiver

Click here for photos and more info

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Prototypes only - intended as replacement for TCS

2-20 mc, AM-CW, 42w output

16 present frequencies
PTO or xtal control (4 xtals)

Click here for photos and more info - thanks to K4OZY

AN/URC-8 (XN-2)

CBS Labs prototype 1955 Need info! -

AN/URC-32
AN/URC-32A
AN/URC-32B
Transceiver

Photos, info and manual downloads

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HF SSB transceiver
2-30mc, CW/SSB, 500w

Collins KWT-6 family

Photos, info and manual downloads

AN/URC-34 (115vac)
AN/URC-34X (115vdc)
USCG only?
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6 channel HF AM transceiver (2-9 mc)

RT-452/URC Transmitter-Receiver
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3 x 6146 final, 2x 6146 modulators

RT-452/URC Transmitter-Receiver
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RT-452/URC Transmitter-Receiver
C-2521/URC remote control
MD-336/URC-34 modulator & p/s
(MD-337 for AN/URC-34X)

Need more info

Manual NAVSHIPS 93349

AN/URC-35 Transceiver

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modern HF SSB transceiver
2-30 mc, 100w

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RT-618/UR transceiver
AM-3007/UR amplifier
C-9044/URC-35 remote control
used with
    CU-937/UR antenna coupler

 

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C-9044/URC-35 remote control
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AM-3007A/URC
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RT-618/URC
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AN/URC-58(V)
(RF Communications RF-301)
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Download manual

RT-790/URC-58 Rcvr-Xmtr
MT-3504/URC-58 mount

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AN/URC-131(V)
HFRG Transceiver

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High Frequency Radio Group (HFRG) is a fully automated subsystem of the external radio communications system (RCS) aboard surface ships. The HFRG operates in the Very Low Frequency (VLF), Low Frequency (LF), Medium Frequency (MF) and High Frequency (HF) bands and supports full duplex, half duplex and simplex operation for tactical and long-haul voice, interrupted continuous-wave, teletype and digital data communications in the Lower Sideband (LSB), Upper Sideband (USB), Independent Sideband (ISB), Amplitude Modulation Equivalent (AME) and Link 11 modes of operation. The HFRG consists of three subsystems: the Transmit Subsystem, the Receive Subsystem and the Control/Monitor Subsystem (CMS).
Transmit Subsystem: The Transmit Subsystem operates (in increments of 10 Hz) in the frequency range of 2 Mhz to 30 Mhz and is used primarily for broadband circuits. The Transmit subsystem is designed to allow all exciters to operate in the Link 11 mode, but contains the assets required to support two (2) 1kW narrowband circuits which are the primary HF Link 11 circuits. The operational capabilities of the transmit subsystem require both broadband and narrowband antennas. The operational configuration of the transmit subsystem is accomplished in response to commands from the CMS and frequency changes (except narrowband) are completed in less than 100 milliseconds. The transmit subsystem reports to the CMS when the system is configured and also reports detected failures.
Receive Subsystem: The Receive Subsystem operates (in increments of 10 Hz) in the frequency range of 14 Khz to 1.619 Mhz and 2 Mhz to 30 Mhz. The receive subsystem requires at least two broadband antennas and 1 or 2 additional antennas dedicated to the use of the Ship Signal Exploitation Equipment (SSEE). The operational configuration of the receive subsystem is accomplished in response to commands from the CMS and frequency changes are completed in less than 20 milliseconds. The receive subsystem reports to the CMS when the system is configured and also reports detected failures.
Control/Monitor Subsystem (CMS) The Control/Monitor Subsystem is the backup point of control for the HFRG when the system is being controlled by the Surface Ship Automated Communications Control System (SSACCS) (part of the Communications Support System (CSS)). The SSACCS normally controls the HFRG through an interface with the CMS, but if the SSACCS becomes inoperable the CMS automatically assumes the functions of remote control, performance monitoring, test, operator interface, and display of the operational characteristics. The CMS is used to send configuration commands to the transmit and receive subsystems and, in turn, receive configuration completion and operational characteristics from these subsystems.

From "Jane's Military Communications"- The AN/ URC-131(V) High Frequency Radio Group (HFRG) system is an integrated, solid-state naval communications suite, designed to provide a balance between transmitter and receiver performance in a co-located shipboard environment. The three main communications components of the AN/URC-131 (V) are the Broadband Transmit Group (BTG), the Narrowband Transmit Group (NTG) and the receive system. The third-generation BTG is of solid-state design and provides coverage of the 2 to 30 MHz band. Three BTG variants have been produced - a 4 kW (8 circuit) system, an 8 kW (17 circuit) system and a 12 kW (26 circuit) system. All three systems use only two topside broadband antennas. The NTG consists of up to three solid-state 1 kW transmitters with power post-selectors and digital antenna couplers. The NTG can be tuned in the presence of adjacent antenna interference and offers completely silent tuning. It has a rapid-tune digital antenna coupler. It can also serve as a stand-alone system aboard small ship platforms. The receive system's R- 2557A/ URC receiver operates over the full LF, MF and HF frequency range from 10 kHz to 30 MHz. Other features include: up to 49 receive circuits; passive antennas, which require no electronics topside; and an atmospheric noise-limited design. The HFRG's HFRG Remote Control/ Monitor Subsystem (RCMS) is designed for 'lights out' operation in the transmitter and receiver compartments. Its features include: a ruggedized, PC workstation with full ASCII keyboard and pointer for function selection/ activation; redundant control buses and subsystem controllers for system survivability.

AN/WRC-1
Transmitter-Receiver

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wrc1-man-01.JPG (32143 bytes) modern HF SSB transceiver
2-30mc, 100w

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R-1051/URR receiver
T-827/URT exciter
AM-3007/UR power amplifier
used with
    CU-937/UR antenna coupler

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T-827B/URT exciter

Eldico S-100 SSB transmitter-receiver

1959 spec sheet
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4-channel , 2.2-30 mc SSB

R-100 receiver
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R-100 receiver
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A small number were installed for interim testing before military SSB equipment was procured.

Included:
R-100 receiver
T-100 transmitter
M-100 Antenna Tuner
M-102 DC supply remote control

Used with SRA-25 antenna tuner

T-100 Transmitter
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T-100 Transmitter
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T-100 Transmitter
(photos thanks to Brian WA5UEK)
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RCA SSB-1 Transceiver

More SSB-1 photos and info 

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RCA SSB HF transceiver 60 watts
4-channel, crystal controlled 3-15 mc
pair of 6146 output (3x 6146 in later models)

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Commercial unit used extensively by USN before military SSB equipment was procured

 

NAVSHIPS 92917

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SSB-1 block diagram

used with AN/SRA-20 antenna tuner

More SSB-1 photos and info