US Navy RTTY Equipment - FSK & AFSK Keyers

RTTY is also called RATT (Radio Teletype)

Main Vintage Navy Radio Page
Back to main Navy RTTY page
- Navy RTTY Receiving Converter page
- Navy RTTY Terminal Unit page
Please send me e-mail if you have more info or links for me to add
thanks, Nick K4NYW
Go here for FSK and AFSK EQUIPMENT MANUALS

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

C-2749/URT	FSK keyer - used with URT-19,		TMC model XFK manual & spec sheets thanks to K4OZY


200kc oscillator oven
KY-30/GRT			FSK keyer Same as Collins 709B-1 Operation & Circuit Info Page NAVSHIPS 91232
KY-32/GRT		FSK adapter for TCK transmitter Please let me know if you have a NAVSHIPS 91109 manual	--
KY-43A/URT KY-43B/URT	Adds FSK to TAB-5, -6, -7	KY-43A for polar TTY signals KY-43B for polar or neutral TTY signals	NAVSHIPS 91645 NAVSHIPS 0967-997-5010 Fidelity Amplifier Co.
KY-45/FRT-5 frequency shift keyer used in FRT-5, FRT-6, etc.		-	NAVSHIPS 92346 KY-45 pages from FRT-5A manual
KY-58/GRT & KY-75/SRT	(KY-58/GRT for shore stations, KY-75/SRT for shipboard) FSK keyers - replace oscillator in transmitter - used with TBL and other? 1.0-6.7 mc, 6 watts output	AM/665-URT MD-165/URT	Spec Sheet NAVSHIPS 91543 Manuf - National Radio
T-341/UC Carrier Telegraph Transmitter	Converts TTY loop input to on-off audio tone Spec Sheet NAVSHIPS 91663	--	--
TH-39/UGT (TMC TIS-2) photo thanks to Andy Moorer	AFSK keyer used with AN/URT-19, AN/URT-39, AN/URT-40, others	NAVCOMMSTA Guam - TH-39's in rack #15 on right	TTY signal in and AFSK output to transmitter Spec Sheets Manuals Manuf - TMC
TH-39A/UGT (TMC TIS-3)	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-39B/UGT (TMC TIS-3)	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
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



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
			Installed in TBK-18