US Navy RTTY (RATT) Radio Teletype Equipmentratt-01.jpg (60395 bytes)
1950's-60's vintage

RTTY is also called RATT (Radio Teletype)
FSK is also called CFS (Carrier Frequency Shift)
AFSK is also called Tone or Tone-Modulated



DEMODULATORS - FSK & AFSK RECEIVING CONVERTERS - photos and infor390-cv89-01.jpg (78725 bytes)

KEYERS - FSK & AFSK TRANSMITTING CONVERTERS - photos and info

TERMINAL UNITS - COMBINED DEMODULATOR + KEYER - photos and info

TTY MULTIPLEX SYSTEMS - photos and info

CONTROL & PATCH PANELS - photos and info

MISC RTTY EQUIPMENT - photos & info

TELETYPE EQUIPMENT - photos & infougc6-guam-01.jpg (68410 bytes)

Torn Tape Relay Equipment

Tape and Automatic Relay Centers

FACSIMILE EQUIPMENT - photos & info


Northern Radio RTTY demods, FSK converters, etc.


1972 list of military surplus RTTY units - download 1.0 MB pdf

Includes brief descriptions.
Also see CQ magazine September 1972, page 83 (avail at http://hamcall.net/cq)


Greenkeys

This is a great email list for TTY and RTTY information
http://mailman.qth.net/mailman/listinfo/greenkeys
Check out the greenkeys archives

Navy RTTY Links - more interesting info and photos

More RTTY links

Communication equipment manuals and descriptions

TTY manuals