Radio Research Paper - 1980's Teletype , Crypto and Message Handling Systems

AOR/Annapolis/IRE/Iroquois/Mackenzie/St. Laurent Classes - Teletype, Message Handling and Crypto Equipment

TELETYPE, MESSAGE HANDLING AND CRYPTO EQUIPMENT SUMMARY LISTINGS
The equipment is listed in the identical order to that of the source material.

Model	Description	Comments
REC 10	DC Loop Supply - 120 VDC 60 ma	Can source sufficient power for up to five Teletypes.
REC 13	DC Loop Supply - 120 VDC 60 ma	Can source sufficient power for up to ten Teletypes.
PP 5203	DC Loop Supply - 120 VDC 60 ma	Provides DC power for teletype circuits.
C 5128/FGC	Transmitter control	Used in conjunction with teletype equipment to key a transmitter. Manual or automatic control is provided. Manual - control of transmitter keying is provided by a switch located near teletype equipment. Automatic - Transmitter is automatically keyed when the 0/60 Baudot DC pulses are detected. A built in time delay circuit will automatically switch to the receive function in the absence of teletype pulses. (Photo courtesy RCN)
SB 5106	60 ma Monitoring Panel
SB 5107/SGA 502	Meteorological Black Patch Panel	Purpose - Provides patching facilities from the receivers to the teletype or Mufax equipment. Red and Black patch panels were made by Presentey Engineering Products, Ottawa. Vintage :1972. See Teletype terminal equipment photo elsewhere in this document
SB 5108/SGA 502	Patch panel.
SB 5109/SGA 502	Meteorological Black Patch Panel	Purpose - Provided patching facilities from the receivers to the teletype or Mufax equipment.
SB 5110/SGA 502	Red Teletype Patch Panel	For patching crypto equipment to teletype equipment.
TT 23/SG TP P/P	Teletype Patch Panel	aka SB5072. Provides patching of teletype equipment to various frequency shift converters/keyers or tone modulated terminal equipment .[1] (Photo by Jerry Proc)
SB 5072 TP P/P	Patch Panel
SB 5112 UCC1 P/P	Patch Panel
AN/SGC1A	Teletype Terminal Unit TT40A/SGC-1A	Uses tome pairs of 500 Hz (space) and 700 Hz (mark) to key a UHF transmitter. (Photo by Jerry Proc)
KY 5021/1215 or 1215A	Keyer for HF transmitter	Purpose - Used in the transmit path to convert 60 ma DC Baudot code pulses from the teletype equipment to audio tones for the transmitter. Produces 1575 or 2425 Hz shifted tones for HF. See photo below.
KY5021/1215 UHF Keyer	Keyer for UHF transmitter	Produces 500 or 700 Hz shifted tones for UHF transmitter. See photo below.
CV5087 (P) UGC	1200 baud Frequency Shift Converter. 100 wpm	The CV5087(P)UGC is designed to provide optimum detection of frequency shift keying signals with shifts between 170 and 2000 Hz, and with keying rates from 30 to 300 baud. The converter accepts audio signals from a communications receiver, demodulates these signals, and uses the resultant output for keying a standard neutral telegraph loop.
MX 5136/UGC	Model 1250 Display Unit	Purpose - Provides a visual tuning display for the received input signal to the CV 5087 (FEC 1200) converter. In addition, it can monitor the output from the CV 5087 demodulator when switched to the "W" position. See photo below as Model 1250.
CV 483/URA-17	Comparator Converter Group	Purpose - AN/URA 17 consists of two CV 483 converters. It converts the frequency shift audio signals from a receiver into DC Baudot code pulses for the teletype equipment. Description - The AN/URA 17 can be used as two independent converters or as a comparator converter. Narrow frequency shift uses 1000 Hz with a shift between 10-200 Hz (Narrow is used on LF frequencies with audio frequencies of 957.5 and 1042.5 Hz) Wide frequency shift uses 2550 Hz as the mean frequency with a shift from 200-1000 Hz. (Wide is used with HF frequencies with audio frequencies 1575 and 2425 Hz). Runs at 100 WPM maximum. (Photo courtesy RCN)
AN/UCC 1C or 1D	Telegraph Terminal/Multiplexor	Depending on configurations, this equipment can be used for either transmit or receive. Canadian ships normally used two converters (765 Hz and 2125 Hz). It enabled several teletype circuits to use one RF carrier by using 16 narrow band ( +/- 85 Hz) channels. See photo below. Vintage 1967
Model 28KSR Printer	Teletype Corp. page printer 100 wpm.	Can run on 60 or 75 WPM circuits, however the gears need to be physically changed. (Photo courtesy Teletype Corp)
AN/SGA 501	Transmit control indicator	To automatically key the transmitter when the two audio tones are received from the keyer. Operates on the following tone pairs: 500/700 Hz or 1575/2425 Hz. See Teletype terminal equipment photo elsewhere in this document Manufacturer: Northern Radio, Ottawa Ont. Manual Reference: BRCN 4549
Model 28 Reperforator Tx/Rx	Teletype Corp. Reperforator	For producing chadless Baudot tape.
Model 28 Reperforator Rx	Teletype Corp. Reperforator	The receive reperforator does not have a keyboard
Model 28 TD	Transmitter - Distributor	Reads Baudot tapes (Photo courtesy Teletype Corp)
Univac 35	Teletype machine
Univac 1259	Teletype machine	This photo of the 1259 in a computer room was dated 1966. (Photo courtesy Brian Sullivan web page)
Converter Sw Assembly
CV 2757 Link 14 Con
XFK	Frequency Shift Keyer	(Photo by Jerry Proc)
G5243/ URA501
AN/UYK-502	General Purpose Computer	See photo and copy below.
AN/USQ-69 VDU	Video Display Unit	Purpose - Microprogrammed CRT display device that provides operator interface with a system computer. Description - Enables manually preparing, displaying, editing and entering data into and out of the computer See photo below.
AN/UCG 504	Terminal/Printer	Speed - 50 to 2400 baud (selectable 50, 75, 100, 110, 150, 200, 300, 600, 1200 and 2400 baud. See photo elsewhere in this document.
CV 5144/U P/P	Converter Patch Panel	Purpose - To interface between crypto gear and Message Handling System providing: (a) High to Low level signal conversion. (b) Low Level to dry contact signal, conversion. (c) Low level patching. (d) Straight through patching.
PP 5318 UPS	Uninterruptable Power Supply	If the ship's power is out of specifications, the transfer switch disconnects ship's power, starts the inverter which connects l8-6v batteries to the computer Description - Transfer switch monitors under/over voltage and under/over frequency. Maximum battery time is 5 minutes. Typically used with the UKY-502 computer and USH-26 mass storage unit.
UPSA-l000	UPS system analyzer	Purpose - tests the UPS performance.
AN/USH-26	Mass Storage Unit	Uses cartridge tape and interfaces to computer to store and retrieve data at 48,000 bits per sec. Storage Capacity - 24 Million bits. See photo below

CRYPTO EQUIPMENT

KW-7	On-line, send/receive	ORESTES
KW-37	On-line, crypto receiver	JASON
KWX-7	Remote Control Panel for KW-7
RACE	Off line crypto System	aka KL-51

NOTES:

[1] East coast ISL and 265 class ships used one of these for receiving and one for transmitting. Both were Black patch panels. West coast ships used a Red and Black patch panel combined.

BLOCK DIAGRAMS

Block diagram of a message handling system showing the relationship between the UYK-502 computer and the crypto equipment. Click to enlarge.
(Diagram courtesy Canadian Navy)

Block diagram of a 280/AOR class teletype system. Note the two circuits connecting to the MET office. Click to enlarge. (Diagram courtesy Canadian Navy)

EQUIPMENT INVENTORY PER SHIP - Circa 1985

List # 10	List #11	List #12	List #13

FEATURED EQUIPMENT
TELETYPE TERMINAL EQUIPMENT

Teletype terminal equipment. (Photo courtesy Canadian Navy)

1215 Tone Keyer
Manufacturer: Frederick Electronics, Frederick Maryland
Vintage: 1965 1200 FSK Demodulator
Manufacturer: Frederick Electronics, Frederick Maryland
Vintage: 1965 1250 Display Unit
Manufacturer: Frederick Electronics, Frederick Maryland
Vintage: 1965

AN/ UGC-504 terminal/printer, 50 to 2400 baud. (Photo courtesy Canadian Navy).
For detailed information about the UGC-504, please select this link to the document created by Dave Hunter, VY2AC .

AN/USH-26 Mass Memory for use with AN/UYK-502 . Note the two tape drives with a tape cartridge inserted into the left most unit. (Photo courtesy Canadian Navy)

AN/USQ-69 Data Terminal Set (DTS) .(Photo courtesy Canadian Navy)

AN/UYK-502(V), a 16 bit general purpose minicomputer . Micro Programmed Controller (MPC) logic from the UYK-20 was repackaged onto a set of 6" x 9" modules for the UYK-502. The Canadian variant was built by Sperry Univac in Winnipeg with the majority of them being made between 1982 and 1985.
This computer became a standard in the Canadian Navy and was commonly found in ship's Message Handling Systems. Its replacement was the UYK-507 which then became the mainstay computer. (Photo courtesy Canadian Navy)

Contributors and Credits:
1) RCN's AOR/TRBL/ISL/265/IRE/MACK Class Equipment Handout. September 1985.
2) Tom Brent <tgb(at)telus.net>
3) Pat Barnhouse <pat.barnhouse(at)sympatico.ca>
4) Univac 1259 http://www.honeysucklecreek.net/images/people1/Bryan_Sullivan/computer_room.jpg
5) UYK-502 and 505 info http://www.usfamily.net/web/labenson/Computers16.htm
6) Gary Isliefson < gc_isliefson(at)yahoo.ca>

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July 7/10

	Block diagram of a message handling system showing the relationship between the UYK-502 computer and the crypto equipment. Click to enlarge. (Diagram courtesy Canadian Navy)
	Block diagram of a 280/AOR class teletype system. Note the two circuits connecting to the MET office. Click to enlarge. (Diagram courtesy Canadian Navy)