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) FSK keyer

used with TBL and other?

 NAVSHIPS 91232

manuf Collins
KY-58/GRT & KY-75/SRT 
(KY-58/GRT for shore stations, KY-75/SRT for shipboard)		 ky58-grt-01.JPG (56912 bytes) 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

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

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

 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.

TH-39/UGT 
(TMC TIS-2)

 tmc-TIS-3.2.jpg (112304 bytes)
photo thanks to Andy Moorer		 AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others

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)

th39a-ugt-103.jpg (10416 bytes)

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

th39b-ugt-103.jpg (10019 bytes)

 AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others
th39b-ugt-102.jpg (29060 bytes)

TTY signal in and AFSK output to transmitter

 Spec Sheets

Manuals

Manuf - TMC

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