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From: msg on 4 Dec 2009 16:02
Jeff Liebermann wrote:
<snip>

> What's a TCNS?

Thomas-Conrad Network -- I am particularly interested in
the 100Mbps version and in finding NICs for it (I have
an old ad-insertion system that outputs on 100Mbit TCNS
and I actually am considering doing 100Mbit over RG69
which was previously laid underground for CATV distribution.

Michael
From: David Brodbeck on 11 Dec 2009 21:24
Jeff Liebermann wrote:
> Incidentally, many police departments used AM frequencies at the top
> of the AM broadcast band for dispatch up to the early 1970's. In Smog
> Angeles, listening to the police on a tweaked AM car radio was common.

My grandparents have a Philco console set from the 1930s that has that
police band marked on the dial.
From: David Brodbeck on 11 Dec 2009 21:26
mm wrote:
> A good accessory. When I'm driving I like to set my alarm clock to
> wake me up every 15 minutes.

Yeah, that was my reaction at first, too. Later I found it was actually
quite useful when taking short "safety naps" at rest stops. A 15 minute
nap does wonders when I'm feeling not so alert in the afternoon.
'Course nowadays I just use the alarm clock feature of my cell phone.
From: Michael A. Terrell on 12 Dec 2009 02:00

David Brodbeck wrote:
>
> Jeff Liebermann wrote:
> > Incidentally, many police departments used AM frequencies at the top
> > of the AM broadcast band for dispatch up to the early 1970's. In Smog
> > Angeles, listening to the police on a tweaked AM car radio was common.
>
> My grandparents have a Philco console set from the 1930s that has that
> police band marked on the dial.

Yes, but it was one way communications from the police station to the
police cars, and was right above the AM BCB. They used 'Police Call
boxes' to contact the dispatcher. They were telephones in locked metal
boxes that ran directly to the dispatcher's office.


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