Mark I And Mark V Bumper Beeper
Surveillance System 1960's, 1970's
Pictured above is the Mark
I and Mark V bumper beeper surveillance system from the 1960's and 1970's.
This was an era before the time of GPS tracking equipment. This system
was used by Bill Mitchell of Mitchell
Reports Investigations, LLC . It was really something for it's time.
Bill Mitchell used these units on many surveillance cases. One criminal
case busted a ring who was going around stealing hundreds of thousands
of dollars in funds out of vending machines. Click
here to read Bill Mitchell's story about The Septa Transit Authority Major
Coin Theft Case.
The small boxes on each side of the photo where the actual bumper beepers
that went onto a bumper of a target vehicle with magnetic mounts. The
two boxes in the middle were the receivers which could be mounted in a
surveillance vehicle much like a CB radio was done in those days. You
had to have a lot of antenna on top of your car to make these units work.They
had to be set at least 6 inches apart and attached either to the gutters
or mirrors of the vehicle. The antennas obtained the left and right signal
technology.They would basically tell you if a vehicle turned or if a vehicle
was the the left or the right and give you somewhat of a range. If you
had this equipment in the 1960's and 1970's, you had state-of-the-art
top flight surveillance equipment. By today's standards, these nits were
big, bulky and expensive. A set could set you back several thousand dollars,
a lot of money in the 1960's and 1970's. Compare that to stuff like today's
Trimtrack GPS Ultra Advanced Unit or the TinyTraK
GPS Data Logging System or the Livetrack
The Latest In GPS Tracking Systems
Ralph D. Thomas PI Vintage Collection
THOMAS INVESTIGATIE PUBLICATIONS, INC.
NATIONAL ASSOCIATION OF INVESTIGATIVE SPECIALISTS, INC.
SPY EXCHANGE AND SECURITY CENTER
P O Box 82148, Austin, Texas 78708
Showroom: 9513 Burnet Road, Austin, Texas 78758
Phone 512.719.3595 Fax 512.719.3594
To The Spy And PI Vintage Pages
2006, Thomas Investigative Publications, Inc. All rights reserved.
Thomas Investigative Publications, Trademark, 1981.
National Association Of Investigative Specialists, Inc, Trademark, 1986.
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