EV> RW> I remember having some tube-type Motorola VHF mobile radios
EV> RW> that I thought were too large to put in a car. They were run by
EV> RW> remote control with 99% of the radio mounted in the trunk and
EV> RW> you only had a control head and mic under the dash...

EV>You're talking about those Two Way Radios used in Police Cars, Fire
EV>Trucks, City Works, Taxi Cabs, etc...

Adn they were popular ot convert inot Ham units. Lots odf them were used
for repeaters because of their low price on the used market as compaired
to a Ham Repeater unit of the3 same power output


EV> RW> The Motorolas I mentioned above had two sets of crystals in
EV> RW> them. One that received the base station and one that
EV> RW> transmitted on another frequency, presumably the base station's
EV> RW> receiver, aka duplex. They had a couple of channels setup like
EV> RW> that and about 4 channels with simplex frequencies in their rx
EV> RW> and tx. That was late 50s or early 60s.

EV>A and B Channels? and they're not Duplex, they are Simplex Push To Talk
EV>Radios.
EV>Unless you got something from Motorola fancier than the usual Mobile
EV>Radio the Services above used in the 1960's when I was a Dispatcher
EV>for City Works.

Back in the Xtal day it was the only wat to go for multi channel
operation. Typical the two frequency units were Dispatch and Tactical

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 þ SLMR 2.1a þ Typo Tom Strkes Again