Texas Instruments made these LORAN-C
receivers from 1981 to 1986 and stopped production because even with
Mexican assembly their price was not competitive with far east
manufacturers. TI being a semiconductor company made a micro
processor along with Motorola, Intel and others. This product
made use of the TI uP.
This is an aircraft receiver. A
little over 6" wide, 3¼" high and 12½" deep.
There's a 37 male pin "D" type connector n the rear panel as well as a
ground post. If you have pin out information on the DB-37
connector please
let
me know.
The rear label reads:
Made in U.S.A.
Texas Instruments
Dallas, Texas
LORAN C Receiver, Type III
Model No. 9100 Serial No. 91A 0599
US Patent No 4134117 Other Patents Pending
DO-160A ENV.CAT A1B1/A/PKS/EXXXXXXBABB
Stamped on the rear panel is:
FAA-PMA
P/N 2480060-1
North Atlantic Chain Data
The APN-157 is an all analog LORAN-C receiver that uses a scope to
measure time differences between stations. This is probably a
first generation receiver for LORAN-C and is probably based on the
older 1.8 MHz LORAN receivers.
4539566 Automatic interference canceling apparatus
September 3, 1985
342/389; 342/417; 455/306
4428052
Navigational aid autopilot
Jan 24, 1984
701/117; 701/207; 701/217; 701/224; 701/225
4134117
Loran C receiver January 9, 1979
342/389; 701/207; 701/219
Others
4812851 Radio receiver with automatic interference cancellation
March 14, 1989
342/389; 455/307 Digital Marine Electronics
Corporation (Acton, MA)
4674051
Navigation point locating system
June 16, 1987
701/200; 342/401; 342/404; 701/203; 701/207;
701/225 Sundstrand Data Control, Inc. (Redmond, WA)
RE31962
LORAN-C navigation apparatus
July 30, 1985
342/389; 701/219 Sanders Associates, Inc.
(Nashua, NH)
4445223
Apparatus and method for determining the presence and frequency of a
periodic signal
April 24, 1984
375/343; 342/389 Motorola, Inc. (Schaumburg, IL)
4325068
Loran-C signal processor
April 13, 1982
342/389; 455/304; 455/305; 702/191 Sanders
Associates, Inc. (Nashua, NH)
4318105
Loran-C navigation apparatus
March 2, 1982 342/389; 701/219
4024383
Method and system for navigation employing incremental range difference
May 17, 1977
701/207; 342/388; 342/396; 342/397 Lockheed
Aircraft Corporation (Burbank, CA)
3947849
Loran receiver-navigator
March 30, 1976
342/389; 701/219 The Johns Hopkins University
(Baltimore, MD) - for jet aircraft where multiple chains will be
crossed rapidly
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