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http://www.wb6nvh.com/Moto42/Moto42.htm
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MOTOROLA
FM
MOBILE 2-WAY RADIO
EQUIPMENT
Part One, 1941-1957
Introduction
Please note that this page is regularly revised and added to. There
will be some models not
shown and some information missing, which will be added in time. The years
given are usually approximate, as exact records are not publicly available if
they exist at all.
The Galvin Corporation created what they argued was the first production AM
broadcast car radio, in the early 1930's. Up through the mid-1930's, they also
made specially modified car radios to receive police broadcasts, on a "to
order" basis for nearby police departments. These were the days when
the company was small enough that one could walk in off the street and have a special
modification of a "stock" radio done almost "while you wait."
Galvin began producing "Motorola" brand mobile AM police one-way radio equipment in 1937,
on a large scale, with a modified broadcast
automobile radio first called the "Police" and later dubbed the "Police
Cruiser." In approximately 1939, Galvin introduced two-way operation with the
T-69-20A mobile police transmitter, a VHF AM two-piece unit which operated in
the 30-40 Megacycle range. Base station transmitters and receivers were also
produced to communicate with this mobile equipment.
