US Navy Shore Station HF Transmitters - 1950's & 1960's

This Page is for HF SHORE STATION TRANSMITTERS


 

SHORE STATION HF TRANSMITTERS (FIXED & UTILITY)

AN/FRT-5
AN/FRT-5A
AN/FRT-5B
frt5-01.JPG (96338 bytes) 15 kw HF 4-26 mc CW/FSK
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

spec sheet

FRT-5 NAVSHIPS 91183
FRT-5A NAVSHIPS 91457(A)

AN/FRT-6
AN/FRT-6A
AN/FRT-6B
AN/FRT-6C
frt6-01.JPG (89705 bytes) 40 kw HF 4-26 mc CW/FSK
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

spec sheet

NAVSHIPS 91263

AN/FRT-15
AN/FRT-15A
AN/FRT-15B
AN/FRT-15C
frt15-01.jpg (429289 bytes) 3 kw HF 2-30 mc AM/CW/FSK
w/ telephone dial channel select
(replaced by T-409/FRC-30)

pair 4-1000A modulated by pair 4-1000A

FRT-15 page - more photos and info

additional photo

spec sheet

manuf Radiomarine Corp.

NAVSHIPS 91848(A)
NAVSHIPS 91690(A) 

AN/FRT-17
frt17-1211-01.JPG (162574 bytes)
Designed by Collins?
manuf by Federal & Mars

NAVSHIPS 91963

500w HF 2-30 mc AM/CW
4-400 modulated by pair of 4D21 (4-125)

urt17-03.jpg (21482 bytes)
FRT-17's at Guam

Early model with different antenna tuner
frt17-early-01.JPG (184726 bytes)

frt17-spec-03.JPG (1417733 bytes)

components:
  • 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
frt17-spec-01.JPG (1876286 bytes) frt17-spec-02.JPG (2321024 bytes)
There's an odd history here - the original contract was with Federal, follow-on with Mars (Crosby-Teletronics) - but an early FRT-17 spec lists Collins part numbers for components, some of which are identical to AN/FRT-5 components. 

Please let me know if you have any info on the Collins 506A, 507A, 508A, and 509A units.

Collins 506A-1 Power Supply (505-2304-005)
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)
mars-ad-6311.JPG (988502 bytes) frt17-mars-tr302.JPG (178962 bytes) O-212/FRT Stabilized Master Oscillator - Same as Collins O-91/FRT-5
frt17-mars-o212.JPG (123131 bytes)
MD-200/FRT FSK Modulator
Same as Collins KY-45/FRT-5
frt17-mars-md200.JPG (114045 bytes)

frt17-fsk-schem-01.JPG (124287 bytes)

AN/FRT-18   frt18-61.JPG (51390 bytes)
photo thanks to N6FEG
 

FRT-17 plus 3kw (pair 4-1000A) power amp
3 kw HF AM/CW/FSK

frt18-110301.JPG (139625 bytes)

manuf by Federal - contract NObsr-57351, April 1952 - "replacement for TDH"
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

spec sheet

NAVSHIPS 92018

AN/FRT-22
(Army, used by USN)
ft-allen-72.jpg (48644 bytes)
AN/FRT-22 transmitters at Ft. Allen - thanks to Pete Premo
40 kw 4-26.5 mc CW/FSK
similar to FRT-6
includes AN/FRT-26 as exciter
manuf Collins
photo and info
AN/FRT-23
(USCG only?)
need photo - 

see here - looks identical to FRT-17??

same as FRT-17? -
AN/FRT-24 
T-440/FRT-24
003_023.jpg (118391 bytes)
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
013_013.jpg (270799 bytes)

Another photo - K7YIR's FRT-24

NAVSHIPS 92223(A)

Article and photos in Sept. 2005 Electric Radio magazine

frt24-KS4FE-01.JPG (2003428 bytes)
Phil KS4FE & his FRT-24

AN/FRT-24A
T-973/FRT-24A
frt24a-1209-01.jpg (366787 bytes)
Tony Marcus - Bermuda 1981
1 KW 2-30mc SSB/FSK

8576 final
synthesized freq. control
manuf by Manson Laboratories

NAVSHIPS 0967-009-2010
NAVSHIPS 0967-009-2020
AN/FRT-25? need photo higher power version of FRT-15?  NAVSHIPS 92431
AN/FRT-26
(Army, used by USN)
need photo

Socket for final tubes
frt26-skt-01.jpg (37672 bytes)

15 kw 4-26.5 mc CW/FSK
similar to AN/FRT-5
used as exciter in AN/FRT-22
manuf Collins

Chimney & plate cap for final tubes
frt26-chimney-01.jpg (31329 bytes)

 photo and info
AN/FRT-27  need photo 15 kw 4-26.5 mc AM/CW/FSK
similar to AN/FRT-5 with AM modulator
manuf Collins
 NAVSHIPS 92501
AN/FRT-39
AN/FRT-39A

londonderry_frt-39_3.jpg (766882 bytes)

These models include a non-synthesized exciter

frt-39-03.JPG (92491 bytes)
FRT-39 or 39A

manuf by TMC - GPT-10K

10 KW HF shore station (& some shipboard) SSB/ISB xmtr

frt-39-02.jpg (246632 bytes)
photo from TMC vintage radio web site

frt39-01.jpg (238972 bytes)
photo from TMC vintage radio web site

AN/FRT-39B
AN/FRT-39C

B and C models include URA-30 synthesized exciter

agmr1-xmtr-1311-01.JPG (349736 bytes)
FRT-39B or C aboard AGMR-1

frt39-11.JPG (256057 bytes)
FRT-39B or C

 

10 KW HF shore station (& some shipboard) SSB/ISB xmtr

frt39-agmr1.JPG (60531 bytes)
FRT-39B or C aboard AGMR-1

bouk-pag-08.jpg (63027 bytes)
FRT-39's at Bouknadel
(thanks to Darian Paganelli)

frt39-12.JPG (59030 bytes)
FRT-39B/C - synthesized exciter on left

AN/FRT-40
AN/FRT-40A
AN/FRT-40B
AN/FRT-40C

FRT-40B/C has URA-30 synthesized exciter

frt-40-01.JPG (62186 bytes)
FRT-40 or 40A
40 KW HF shore station xmtr

bouk-pag-01.jpg (21847 bytes)
FRT-40B or C at Bouknadel
(thanks to Darian Paganelli)

manuf by TMC
    GPT-40K-A (FRT-40)
    GPT-40K-E (FRT-40A)

manual & spec sheets thanks to K4OZY

AN/FRT-53 need photo - looks similar to FRT-57 1 kw 2-32 mc - SSB/AM/CW
manuf TMC SBT-1K-J
  • PAL-1K
  • SBE-3
  • VOX-5
  • No SWR meter or antenna changeover relay
manual & spec sheets thanks to K4OZY
AN/FRT-54 need photo - looks similar to FRT-40C 40 KW HF shore station xmtr
manuf by TMC - GPT-40K-F

 

manual & spec sheets thanks to K4OZY
AN/FRT-55 urt17-01.jpg (197921 bytes) 750 w SSB/AM/CW
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
manual & spec sheets thanks to K4OZY
AN/FRT-56 1 kw 2-32 mc - requires external exciter
manuf TMC SBT-1K-Q
          (PAL-1K + SWR-1K)
manual & spec sheets thanks to K4OZY
AN/FRT-57 1 kw 2-32 mc - SSB/AM/CW
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

manual & spec sheets thanks to K4OZY
AN/FRT-62 bouk-pag-03.jpg (51458 bytes)
FRT-62 at Bouknadel Morocco 1970
(thanks to Darian Paganelli)
200 KW HF shore station xmtr
manuf TMC GPT-200K

frt62-01.JPG (120726 bytes)

manual & spec sheets thanks to K4OZY

 

AN/FRT-70 AN/FRT-70 (11157 bytes)
FRT-70's at Guam
1 kw 2-32 mc AM/CW/SSB or FSK

with synthesized exciter (AN/URA-30)

(synthesized version of AN/URT-19)

manuf TMC SBT-1K-E

manual & spec sheets thanks to K4OZY

AN/FRT-83(V) - 1kw
AN/FRT-84(V) - 10kw
AN/FRT-85(V) - 40kw
AN/FRT-86(V) - 200kw

AN/FRT-85 (51702 bytes)
FRT-85 at Guam

frt85-01.JPG (17193 bytes)
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)

2-30 mc, 4 channel ISB

AN/FRT-85 (29025 bytes)
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

Manuf by Continental / RF

frt84-1311-01.JPG (368101 bytes)
FRT-84

4cx35000-02.jpg (19675 bytes)
4CX35,000 tube used in FRT-85
frt86-coil-02.jpg (70975 bytes)
L20 output coil from FRT-86 - about 18" in dia., vapor cooled
MD-777/FRT 4-channel ISB Exciter ("Modulator-Synthesizer") is used in all models (manuf by National)

AN/FRT-86(V) manual is NAVSHIPS 0967-293-2010

MD-777/FRT manual is NAVSHIPS 0967-292-9030

AN/FRT-96
frt96-01.jpg (13525 bytes)
10kw HF 

1990's vintage

Collins HF-8151A

-- --
AN/FSQ-98

Remte cintrol system for FRT-83, -83, -85, -86

fsq98-1311-01.JPG (103751 bytes) - --
AN/URT-2
AN/URT-3
AN/URT-4
See URT-3 page shipboard use primarily -
some used ashore?
See URT-3 page
AN/URT-17
AN/URT-17A
Transmitter
urt17-01.jpg (197921 bytes) 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

urt17a-02.JPG (26282 bytes)
ebay URT-17A w/ homebrew exciter
AN/URT-19(V) AN/URT-19 1 kw 2-32 mc AM/CW/SSB or FSK

non-synthesized exciter - synthesized version is AN/FRT-70

manuf TMC SBT-1K various configurations
          SBT-1K-A, SBT-1K-B,
          SBT-1K-C, SBT-1K-D

manual & spec sheets thanks to K4OZY

AN/URT-22

URT-22_p1.jpg (606658 bytes)

5 kw HF 2-30 mc SSB, AM, CW, FSK - prototypes  by National (never went into production)

URT-22_p2.jpg (513489 bytes)

Spec sheets thanks to W2KRM

URT-22_p3.jpg (512771 bytes)

URT-22_p4.jpg (573854 bytes)
AN/URT-25 -- need info
manuf by National
-
 -  -  -  -
TBC guam-tbc.jpg (58359 bytes) HF 40 kw CW, water cooled -
TEC tec-03.JPG (93755 bytes) HF 40 kw CW, water cooled -
TEF
(part of AN/FRC-10 & AN/FRC-10A)
photo 2 kw HF 4.5-22 mc SSB/AFSK
manuf by Western Electric
 -
T-265/FRC-10
(part of AN/FRC-10B)
  4 kw HF 4-23 mc SSB/AFSK
manuf by Western Electric
NAVSHIPS 92152 
T-409/FRC-30     4 kw HF 4.5-28 mc SSB/AFSK
manuf by Western Electric
NAVSHIPS 92152

SHIPBOARD TRANSMITTERS (SURFACE & SUBMARINE)

TMC TRANSMITTER COMPONENTS