[BC] Police frequencies on MW

[Milton R. Holladay Jr.]

There is a very old, large(30 to 40' across at the base), 4-legged,
insulated tower in Darlington that is about 400' now, and looks like it is
missing about another 100' that it once might have had. It was a two-way
tower for the highway dept. back in the dark ages.   With this height, it
must have been operating in or below the AM band..................
M
----- Original Message ----- 
From: <PeterH5322 at aol.com>
To: <broadcast at radiolists.net>
Sent: Friday, July 08, 2005 11:11 AM
Subject: Re: [BC] Police frequencies on MW


>
> >Actually, the police band started at 1500
>
> Pre-NARBA, the MW band was 550-1500, with the now 1490 locals being on
> 1500, and the now 1500-1530 clears being on 1460-1490.
>
> NARBA added 540 as a clear, moved the 1460-1490 clears to 1500-1530,
> moved the 1500 locals to 1490, added clears from 1540-1580 and added
> regionals at 1590 and 1600.
>
> NARBA also permitted in a reduction of the same-market channel spacing
> from 50 kHz to 40 kHz, although Mexico elected to use 30 kHz for such
> spacing.
>
> Pre-NARBA, L.A. had ..., 900, 950 and 1000, ... .
>
> Post-NARBA, L.A. had ..., 930, 980 and 1020, ... . (1000 was supposed to
> move to 1030, but what is now KTNQ was moved +20 kHz, not the +30 kHz
> which it should have been; this was possible because of the new 40 kHz
> same-market channel spacing).
>
> The MW police band station which served West L.A. still existed well into
> the 1960s at Santa Monica Blvd. and Purdue Ave. Roof-top mounted.
>
> Certain "film noir" from the 1940s had simulated police calls which would
> have come from that station.
>
> "The Big Sleep" comes immediately to mind.
/