SHORE STATION HF TRANSMITTERS (FIXED & UTILITY)
AN/FRT-5A
AN/FRT-5B
FRT-5 manuf by Collins (1949)
FRT-5A manuf by Federal (1951)
FRT-5B manuf by Federal
FRT-5 and FRT-6 page
- more photos & info
FRT-5 NAVSHIPS 91183
FRT-5A NAVSHIPS 91457(A)
AN/FRT-6A
AN/FRT-6B
AN/FRT-6C
includes AN/FRT-5 as exciter
FRT-6 manuf by Collins
FRT-6A manuf by Federal
FRT-6B manuf by Federal
FRT-5 and FRT-6 page
- more photos & info
NAVSHIPS 91263
AN/FRT-15A
AN/FRT-15B
AN/FRT-15C
w/ telephone dial channel select
(replaced by T-409/FRC-30)
pair 4-1000A modulated by pair 4-1000A
manuf Radiomarine Corp.
NAVSHIPS 91848(A)
NAVSHIPS 91690(A)
manuf by Federal & Mars
NAVSHIPS 91963
500w HF 2-30 mc AM/CW
4-400 modulated by pair of 4D21 (4-125)
FRT-17's at NPN Guam
- O-212/FRT VFO
- MD-200/FRT FSK Keyer
- MD-201/FRT Modulator - Power Supply
- AM-766/FRT-23 500w RF unit
- CU-362/FRT Transmission Line Coupler
- CY-1436/FRT Cabinet - Control - Power Supply
Please let me know if you have any info on the Collins 506A, 507A, 508A, and 509A units.
Collins 507A-1A RF Unit (505-2813-005)
Collins 508A-1 HV Power Supply (505-2748-002)
Collins 509A-1 Modulator (505-2740-002)
Collins 708A-1 Stabilized Master Oscillator (O-91/FRT-5)
Collins 709A-1 Frequency Shift Keyer (KY-45/FRT-5)
Collins 707A-2 p/s for the above two units (PP-454/FRT-5)
Same as Collins KY-45/FRT-5
NAVSHIPS 92018
photo thanks to N6FEG
FRT-17 plus 3kw (pair 4-1000A) power amp
3 kw HF AM/CW/FSK
includes:
- O-212/FRT VFO
- MD-200/FRT FSK Keyer
- MD-201/FRT Modulator - Power Supply
- AM-766/FRT-23 500w RF unit
- CU-362/FRT Transmission Line Coupler
- CY-1436/FRT Cabinet - Control - Power Supply
- AM-897/FRT 3kw RF amplifier
(Army, used by USN)
AN/FRT-22 transmitters at Ft. Allen - thanks to Pete Premo
similar to FRT-6
includes AN/FRT-26 as exciter
manuf Collins
(USCG only?)
see here - looks identical to FRT-17??
T-440/FRT-24
FRT-24's at NQM Midway
(thanks to Charles Kinzer)
Russ WA3FRP's FRT-24
1 kw 2-30 mc AM/CW/FSK
4-1000 modulated by two 4-400's
manuf by Collins
(commercial version is 432D-2)
Click here for more photos - also manual download
Another photo - K7YIR's FRT-24
Article and photos in Sept. 2005 Electric Radio magazine
Phil KS4FE & his FRT-24
T-973/FRT-24A
Tony Marcus - Bermuda 1981
1 KW 2-30 mc SSB/FSK
8576 final
synthesized freq. control
manuf by Manson Laboratories
Vol 1 - NAVSHIPS 0967-009-2010
Vol 2 - NAVSHIPS 0967-009-2020
(Army, used by USN)
Socket for final tubes
similar to AN/FRT-5
used as exciter in AN/FRT-22
manuf Collins
Chimney & plate cap for final tubes
similar to AN/FRT-5 with AM modulator
manuf Collins
AN/FRT-39A
(TMC GPT-10K)
AN/FRT-39 includes SLM-1, SBE-2, MCP-1
AN/FRT-39A includes SLM-2, SBE-3. MCP-2, AK-100
photo from TMC
vintage radio web site
- GPT-10K description
- more info here
- manual & spec sheets thanks to K4OZY
photo from TMC
vintage radio web site
AN/FRT-39C
(TMC GPT-10K)
B and C models include URA-30 synthesized exciter
FRT-39B or C aboard AGMR-1
FRT-39B or C aboard AGMR-1
FRT-39B/C - synthesized exciter on left
(thanks to Charles Kinzer)
(thanks to Darian Paganelli)
AN/FRT-40A
AN/FRT-40B
AN/FRT-40C
(TMC GPT-40K)
FRT-40B/C has URA-30 synthesized exciter
FRT-40B or -40C at NHY Bouknadel
(thanks to Darian Paganelli)
manuf by TMC
GPT-40K-A (FRT-40)
GPT-40K-E (FRT-40A)
- manual
- spec sheets
- Lots of GPT-40K photos
- thanks to K4OZY
manuf TMC SBT-1K-J
- PAL-1K
- SBE-3
- VOX-5
- No SWR meter or antenna changeover relay
manuf by TMC - GPT-40K-F
includes
AM-1703/URT-17 amp (TMC RTF)
AN/URA-28A exciter (TMC SBE-3)
PP-1768/URT-17 p/s (TMC RTP)
manuf TMC GPT-750-E
manuf TMC SBT-1K-Q
(PAL-1K + SWR-1K)
manuf TMC SBT-1K-L
- PAL-1K
- SBE-3
- VOX-5
- SWR-1K
Later version was SBT-1KAB with SBE-9 instead of SBE-3
(TMC GPT-200K)
FRT-62 at Bouknadel Morocco 1970
(thanks to Darian Paganelli)
manuf TMC GPT-200K
thanks to K4OZY
with synthesized exciter (AN/URA-30)
(synthesized version of AN/URT-19)
manual & spec sheets thanks to K4OZY
AN/FRT-84(V) - 10 KW
AN/FRT-85(V) - 40 KW
AN/FRT-86(V) - 200 KW
Manuf by CRF (joint venture of Continental & RF
Communications)
- some
info on this contract
2-30 mc, 4ISB, autotune, optional remote control of frequency, etc.
The -83 and -84 (made by RF Communications) use the same 1KW amp and p/s. The -85 and -86 (made by Continental) have a different low power section
AN/FRT-83(V) manual is NAVSHIPS 0967-292-9010
KY-655/FRT manual is NAVSHIPS 0967-292-9020
MD-777/FRT manual is NAVSHIPS 0967-292-9030
AN/FRT-84(V) manual is NAVSHIPS 0967-293-0010
AN/FRT-85(V) manual is NAVSHIPS 0967-293-1010
AN/FRT-86(V) manual is NAVSHIPS 0967-293-2010
AN/FRT-85 configuration
AN/FRT-86 configuration
Contract Production -
- 85 ea. AN/FRT-83
- 140 ea. AN/FRT-84
- 130 ea. AN/FRT-85
- 17 ea. AN/FRT-86
AN/FRT-84
AN/FRT-83 connections
FRT-85 power supply and exciter - driver and final are in two bays to right.
Just-for-fun photo of Nick K4NYW (at NESTEF 1971)
Another just-for-fun photo with Harold W3NET and FRT-85 power supply. FRT-84
(2-bay) and FRT-83(1-bay) are in background to left
4-channel ISB Exciter ("Modulator-Synthesizer") used in all models (manuf by National Radio)
FSK Keyer for use with all models
Remote Control for use with all models
A later version remote control system for FRT-83, -83, -85, -86
Please send me e-mail if you have any additional info
1990's vintage
Collins HF-8151A
AN/URT-3
AN/URT-4
some used ashore?
Transmitter
Mainly shore use - some used shipboard
750 w SSB/AM/CW
includes
AM-1703/URT-17 amp (TMC RTF)
AN/URA-23A exciter (TMC SBE-2)
PP-1768/URT-17 p/s (TMC RTP)
manuf TMC GPT-750-D (URT-17)
GPT-750-D2 (URT-17A)
manual & spec sheets thanks to K4OZY
ebay URT-17A w/ homebrew exciter
Collins KWT-6 exciter plus AM-2374/URT
linear (Collins 204F-1)
2.5kw 2-30 mc
non-synthesized exciter - synthesized version is AN/FRT-70
SBT-1K-A, SBT-1K-B,
SBT-1K-C, SBT-1K-D
manual & spec sheets thanks to K4OZY
5 kw HF 2-30 mc SSB, AM, CW, FSK - prototype by National (never went into production)
National project leader Ron Kohn wrote (AWA OTB August 1992) - "The AN/URT-22 was a 5-kW PEP, 2.5-kW average HF transmitter, designed for highly linear operation on independent-sideband ground-to-air circuits. The set was automatically tuned and
remotely controlled, employing vapor-phase cooling of an Eimac tetrode with an integral boiler-anode.
The cooling system used distilled, de-ionized water supplied to the boiler from a Lexan tub. Steam exited "vapor up" from the boiler into the condenser input via a telescoping Teflon tube, condensed within the radiator and returned to the tub by gravity flow from the output manifold. A Rotron propeller fan pulled air through the radiator front-to-rear; PA filament and RF driver cooling was provided by a small centrifugal blower."
Prototype at National's bankruptcy auction - July 1991
manuf by National
1KW HF transmitter
Harris "Pacer Bounce" AN/URC-119 family
- T-1588/URT-24 exciter
- basically an RT-1446/URC (Harris RF-350K) transceiver with receive function disabled - AM-7494/URT-42 1kw linear
- PP-8377/URT-42 power supply
MD-209/UC Phase Modulator
Download 1955 manual pdf
The modulator is designed to phase modulate an RF signal in the range 2 to 5 mc. It is intended to be used with transmitters whose output frequency is in the range 4 to 20 mc. A "MODULATION RANGE" control is provided to reduce phase shift in proportion to the frequency multiplication used. The RF input is terminated in a 51-ohm resistive load. An RF input level between 1 to 20 volts is required. The nominal maximum modulation capability is ±1/2 radian of RF phase shift at all modulating frequencies within the above limits. Audio modulating signals should be between -20 dbm and a +10 dbm to satisfactorily modulate the RF signal. The audio output circuit matches a line of 600 ohms impedance.
(part of AN/FRC-10 & AN/FRC-10A)
Western Electric D-15600
(part of AN/FRC-10B)
manuf by Western Electric
manuf by Western Electric