US Navy RTTY Equipment - Multiplexers

RTTY is also called RATT (Radio Teletype)

This page is for RTTY equipment.
Go to Navy Teletype Page for actual TTY equipment

Time-division multiplex systems

AN/FGC-5

 cv81-fgc5-02.JPG (130414 bytes)
CV-81/FGC-5
fgc5-01.jpg (22721 bytes)
CV-94/FGC-5
os11-fgc5-101.jpg (8062 bytes)
OS-11/FGC-5 		cv81-fgc5-01.JPG (284382 bytes)
Circuits use 5663 Thyratrons

AN/FGC-5 Info & Photo page

Combines 4 TTY lines to one multiplexed one - includes

  • CV-81/FGC-5 serial-to-parallel converter
  • CV-94/FGC-5 parallel-to-serial converter
  • OS-11/FGC-5 monitor scope
  • 2-rack system

 System Photo here

  • spec sheet
  • manual is NAVSHIPS 91265A
  • manuf - Teletype
  • Please send me email if you have any FGC-5 units  for sale or trade

AN/UGC-1

 AN/UGC-1(XN-1)
ugc1-5612-2.JPG (310127 bytes)
  • 4-channel system
  • manuf by Teletype
  • transistorized
  • compatible with AN/FGC-5

AN/UGC-1 Info & Photo Page

 AN/UGC-1
ugc1-01.jpg (63559 bytes)

AN/UGC-3

 similar to UGC-1?
  • 16-channel system
  • transistorized
  • manuf by Teletype
 -

AN/UXC-2

 Single-channel time & frequency multiplex for immunity to multipath and fading.
uxc2-spec-01.JPG (3178791 bytes)		 uxc2-spec-02.JPG (1516319 bytes) uxc2-01.JPG (121129 bytes)
uxc2-06.JPG (106161 bytes) uxc2-03.JPG (121575 bytes) uxc2-04.JPG (108517 bytes)
uxc2-05.JPG (98711 bytes) uxc2-02.JPG (113126 bytes) uxc2-07.JPG (118678 bytes)

Frequency- division multiplex systems

UG

 ug-101.jpg (683833 bytes) 1945 - Wireline or radio use.
Four full duplex TTY links using 2 UG cabinets - (8 tone channels) 
UG and UH are part of UF system (NAVSHIPS 900,223) - UF Spec Sheet
More info coming soon.

ug-103.jpg (237529 bytes)

ug-102.jpg (644090 bytes)

UN

 un-101a.jpg (186479 bytes) 12 narrow-band plus 3 wide-band channels

un-102a.jpg (116435 bytes)

 UN Spec Sheet

AN/FCC-3
AN/FCC-3A
AN/FCC-3B 

 fcc3-01.jpg (96818 bytes) pr-rb-04.jpg (200722 bytes)
NAVCOMMSTA Puerto Rico, 1958
  • Shore station use - radio or landline links
  • "Telegraph Carrier System"
  • 8 narrow channels plus 4 wide channels
  • manuf by Radio Frequency Labs

    AN/FCC-3 Info & Photo Page

  fcc3-107.JPG (176648 bytes)    

fcc3-106.JPG (196008 bytes)

AN/FCC-7

 similar to FCC-3
  • Shore station use - radio or landline links
  • 8 narrow channels - like FCC-3 but no wide channels
  • manuf by Radio Frequency Labs

AN/FCC-8

 similar to FCC-3
  • Shore station use - radio or landline links
  • 8 narrow channels - like FCC-7 but no frequency converters
  • manuf by Radio Frequency Labs

AN/FGC-29

 fgc29-01.JPG (560871 bytes) 16 channel replacement for AN/FCC-3

  AN/FGC-29 Info and Photo Page

 -

AN/FGC-60

 fgc60-01a.JPG (116702 bytes)
  • Shore station use - radio or landline links
  • 16 channels
  • manuf by Tele-Signal Corp

     AN/FGC-60 Info & Photo Page

 NAVSHIPS 93841
avail from www.fairradio.com  

AN/UCC-1
AN/UCC-1A
AN/UCC-1B
AN/UCC-1C
AN/UCC-1D

 ucc1-02.jpg (73017 bytes)
UCC-1A Full transmit & receive system

ucc1-03.JPG (57638 bytes)
UCC-1D Typical receive-only configuration

ucc1-1202.JPG (96506 bytes)
UCC-1D Plug-in module

NAVSHIPS 96028