US Navy RTTY Equipment - FSK & AFSK Keyers

RTTY is also called RATT (Radio Teletype)

Early USN RTTY equipment - Click Here
           FSA, FSB, FSC transmitting frequency shift converters

KY-30/GRT

ky30-grt-02.jpg (78313 bytes)

 

ky30-grt-01.jpg (53270 bytes)

ky30-grt-spec-01.JPG (179264 bytes) FSK keyer

Same as Collins 709B-1

Operation & Circuit Info Page

NAVSHIPS 91232

KY-32/GRT

 ky32-grt-01.JPG (622878 bytes) FSK adapter for TCK transmitter

Please let me know if you have a NAVSHIPS 91109 manual

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KY-58/GRT & KY-75/SRT 
ky58-grt-01.JPG (56912 bytes)

 (KY-58/GRT for shore stations, KY-75/SRT for shipboard)

ky75-srt-01.jpg (69157 bytes)
FSK keyers - replace oscillator in transmitter - used with TBL and other?

1.0-6.7 mc, 6 watts output

 am665-01.jpg (36347 bytes)
AM/665-URT

md-165-02.jpg (47683 bytes)
MD-165/URT

ky75-dia-1103-01.JPG (289177 bytes)

Spec Sheet

NAVSHIPS 91543

Manuf - National Radio

 

MX-1262/URT
(CBOT-23510)

FSK Coupling Adapter for TBL transmitter connects TBL to FSA, FSB, KY-30/GRT, KY-58/GRT, KY-75/SRT or similar keyer

section 1 couples xmtr master oscillator to FSK keyer.

section 2 couples FSK keyer output to xmtr's first IPA tubes 

NAVSHIPS 91885

manuf by American Electronic Laboratories Inc

 

CYV-23510

FSK Coupling Adapter for TBK & TBM transmitters This is a small unit installed into a TBK (or TBM) transmitter to allow easy hookup of an external frequency shift keyer. Has two tuned RF transformers, one to couple the TBK osc to the 75 ohm FSK input, and the other to couple the 75 ohm FSK output to the TBK IPA. Controls are a common tuning knob for both transformers plus a switch to bypass the FSK. NAVSHIPS 900,206

manuf by Press Wireless

 

TH-39/UGT 
(TMC TIS-2)

 AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others

tmc-TIS-3.2.jpg (112304 bytes)
photo thanks to Andy Moorer

 TTY signal in and AFSK output to transmitter

 

Spec Sheets

Manuals

Manuf - TMC

TH-39A/UGT
(TMC TIS-3)

th39a-ugt-101.jpg (8803 bytes)

AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others

th39a-ugt-103.jpg (10416 bytes)
th39a-ugt-102.jpg (30163 bytes)

TTY signal in and AFSK output to transmitter

Spec Sheets

Manuals

Manuf - TMC

TH-39B/UGT
(TMC TIS-3)

th39b-ugt-101.jpg (8597 bytes)

AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others

th39b-ugt-103.jpg (10019 bytes)

 th39b-ugt-102.jpg (29060 bytes)

TTY signal in and AFSK output to transmitter

Spec Sheets

Manuals

Manuf - TMC

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 Guam - patch panel Guam - TH-39's in rack 15 on far right - AN/FCC-3 multiplexer units in rack 14. -