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Author Topic: Did anyone here used to DX or regularly listen to the police on 1650-1700 khz?  (Read 6618 times)
W4KYR
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Posts: 1799




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« on: March 15, 2018, 06:53:57 AM »

Did anyone DX or regularly listen to the police on the old police band on 1650 - 1700 and 2400 khz?


I've been looking at an interesting site by WB6NVH about vintage police radios from the 1930's and up. Before the police radios went to the VHF bands, they used to use the space just above the AM broadcast band and also 2400 khz. http://www.wb6nvh.com/GE/GEhist1.htm

Did you regularly listen or DX the old police bands?

What was the farthest police station/department that you heard?

Did you ever hear the mobile units from far away?

When did your police department go to VHF?

Thanks
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NK7Z
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« Reply #1 on: March 15, 2018, 07:29:49 AM »

Wow...  I have been doing Ham Radio for 50 years now, and never knew the police were above the AM broadcast band...  What year was this when it was happening?
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Thanks,
Dave
Amateur Radio: RFI help, Reviews, Setup information, and more...
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W8JX
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Posts: 13268




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« Reply #2 on: March 15, 2018, 07:35:34 AM »

Wow...  I have been doing Ham Radio for 50 years now, and never knew the police were above the AM broadcast band...  What year was this when it was happening?

30's
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--------------------------------------
Ham since 1969....  Old School 20wpm REAL Extra Class..
K9YLI
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« Reply #3 on: March 15, 2018, 07:41:13 AM »

It was not regular  but I remember hearing a small town in eastern Iowa police   from   Milwaukee,,  back  1955 or  56.. Radio was   RCA floor model,  went to  65Mc   and also started  about   300kc...          Hey  old radio  old guy    old reference..
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NK7Z
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« Reply #4 on: March 15, 2018, 07:46:49 AM »

Thanks for the dates on this...  I was unaware the police were using those frequencies...
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Thanks,
Dave
Amateur Radio: RFI help, Reviews, Setup information, and more...
https://www.nk7z.net
W4KYR
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Posts: 1799




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« Reply #5 on: March 15, 2018, 07:54:03 AM »

Found this. It says here that as late as 1965, some police departments were still using the medium wave band.

" New Hampshire State Police, KCA999 on 1682 kHz. Their signal had been regularly logged in Europe."

http://onetuberadio.com/2015/12/20/medium-wave-police-dxing-in-1965/
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SOFAR
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« Reply #6 on: March 15, 2018, 08:04:20 AM »

Guess Chicago was using VHF AM in the mobiles.

1951

CPD (KSA954,-5,-6)
is still transmitting on 1714 Mc/s but
the mobiles are transmitting on 155.97 Mc/s(12)
 
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K0UA
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« Reply #7 on: March 15, 2018, 08:19:53 AM »

In my state, Missouri, the state patrol has all of these 300 foot self supporting towers, that now support their VHF/UHF facilities, but the original tower structure was a vertical radiator for their 2Mhz (thereabouts) CW nets.  I knew one of the original operators (W0PM) back in the day when they were in use for that purpose.  There is a large radial field under the towers.
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73  James K0UA
ARRL Missouri Technical Specialist
W4KYR
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« Reply #8 on: March 15, 2018, 08:40:04 AM »

Found this article from Radio TV Experimenter 1965

DX'ing the Vanishing Breed By Tom Kneitel, K3FLL /WB2AAI

"Police operating frequencies have been soaring they're up to 450 mcl But here's the story on pulling in those low frequency boys still around! "


http://americanradiohistory.com/Archive-Radio-TV-Experimenter/Radio-TV-Experimenter-1965-11-01.pdf


Pages 73-75 and 109
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AC7CW
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« Reply #9 on: March 15, 2018, 08:51:00 AM »

I tweaked an AM radio to listen a little above the MW frequencies and listened to the city of San Fernando PD [NW Los Angeles County]. The year was 1957-58
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Novice 1958, 20WPM Extra now... (and get off my lawn)
NK7Z
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« Reply #10 on: March 15, 2018, 09:07:01 AM »

Found this article from Radio TV Experimenter 1965

DX'ing the Vanishing Breed By Tom Kneitel, K3FLL /WB2AAI

"Police operating frequencies have been soaring they're up to 450 mcl But here's the story on pulling in those low frequency boys still around! "


http://americanradiohistory.com/Archive-Radio-TV-Experimenter/Radio-TV-Experimenter-1965-11-01.pdf


Pages 73-75 and 109
That took me back, thanks!
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Thanks,
Dave
Amateur Radio: RFI help, Reviews, Setup information, and more...
https://www.nk7z.net
W0BKR
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Posts: 2066




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« Reply #11 on: March 15, 2018, 11:52:11 AM »

Wow...  I have been doing Ham Radio for 50 years now, and never knew the police were above the AM broadcast band...  What year was this when it was happening?

30's


Way before I was a thought in anyone's mind...sorry....I DX but not in AM band and not with police scanners...
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W6IR
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Posts: 75




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« Reply #12 on: March 15, 2018, 12:29:45 PM »

I recall listening to police above the broadcast band. I lived in the Bay Area and I think it was LAPD that I could regularly hear. This was in the 1963-1965 time span.
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VE7DQ
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Posts: 270




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« Reply #13 on: March 15, 2018, 04:33:26 PM »

The Simple-X-Super receiver I built in 1963 has an IF frequency of 1700 kc and during the winter months of '63/64 and 64/65 I often heard (weak) police dispatches from the California area blowing through the radio's rather anemic front end.

Jeez, I'm old!   Grin
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AA4HA
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Posts: 2630




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« Reply #14 on: March 15, 2018, 05:16:17 PM »

At one time I had an old shortwave receiver that had "police" inked on to the dial glass right at that portion of the broadcast band.

The really old adage of "calling all cars, calling all cars" came from those days when the base station would broadcast a one-way message to police cars that would respond to calls. Also officers and detectives were told to call in to dispatch by phone. If they were in their car they would stop at a pay-phone or accommodating business to use the telephone to call in to find out what was going on and where they were to go.

If you listen to some old-time radio dramas this type of communication was faithfully reproduced.
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Ms. Tisha Hayes, AA4HA
Lookout Mountain, Alabama
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