missouri state highway patrol

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btritch

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Missouri Highway Patrol Is Still Using The LOWER LOW BAND FREQUENCIES! NO WONDER when I searched the 150-170 or 800-1200 MHZ range I never Found them! That's amazing! I didn't think ANYONE used low band anymore! Does anyone have the Kennett Area Freqs. I'm in the NEA area...Paragould To be exact, I'm not sure I could get MSP from here but would like to program them as I go to Kennett A Lot, Can anyone Give me the Kennett Area Freq's?
 

btritch

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I have tried all of the links and cannot get them to work. Can anyone tell me what TROOP of MSP serves the Kennett MO and Poplar Bluff MO area and what Freq's they use.. THANKS
 

BaLa

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btritch said:
I have tried all of the links and cannot get them to work. Can anyone tell me what TROOP of MSP serves the Kennett MO and Poplar Bluff MO area and what Freq's they use.. THANKS
This is the link you need to be looking at.

http://www.radioreference.com/apps/db/?aid=1061


Look for Troop E.
You might try to Program Troop G to see what you can pick up, as well.

I used to get 'decent' results picking up Troop G Dispatch from SW Laclede County, in my car.
 
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btritch

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I had NO IDEA that MHP still used the LOW BAND 40's. I didn't think ANYONE used those anymore! that was shock! I've programmed them, we'll see what happens. Thanks!
 

mjthomas59

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Lowband is certainly a dieing breed in most areas, but don't think that just because there is one of these "statewide apco-25" 800mhz systems in place in other areas (like IL, IN, and OH) for instance, that those lowband frequencies aren't still occassionally used.

I just got home from a trip from Saint Louis to Toledo OH and was surprised to hear and see so many cruisers in these states with the lowband whips still attached. Didn't see much in IN but Illinois and Ohio still had them on several of the highway patrol vehicles i saw, and i did pick up some traffic on them, none of which i believe was simulcast on the 800mhz statewide system(atleast none of which i picked up as simulcast).
 

btritch

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what's the difference

What's the visual difference between a regular and low band antenna? How can you tell it's lowband, I have never paid any attention but I thought and antenna was an antenna..Didn't know you could tell the difference in them, What exactly is the visual difference...LOL...


Also, I have a dept. here that uses 154.340 and they're FCC License has expired for that channel but other than that when they're repeater got hit by lightning about two weeks ago they switched to Ch. 2, I don't have a registered channel 2 for them besides the 37 mhz lowband they have listed. Could this be the number two channel? I mean I wonder what the odds are?
 

mjthomas59

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The odds of a backup channel being a lowband frequency (your example of 37mhz) has several variables. Does the dispatch center still have the old equipment they used for lowband operation, is the antenna still up on the tower, do they still have the transceive. It is pure speculation to know whether or not they do until you either A) go to the dispatch center and look/ask or B) actually hear it in use.

Lowband Antennas can be tricky to spot because the newer design makes them look no different than a standard 5/8wave VHF antenna with 1 exception. The base on these lowband antennas is roughly twice as tall as that on a 5/8 VHF antenna. If you look at a larsen or maxrad website you will be able to see the difference.

However in my case, and in most instances, you will see the lowband antenna on a ball-mount that is attached to the side of the driver-side rear fender. The frequency being used determines the antenna height, most of the ones in Missouri are over 5.5feet tall and they operate at 40mhz. The ones for the 30mhz range would be cut taller, i would guess close to 6.5feet tall. Needless to say, with this type of setup the antenna sticks out like a sore thumb.

So in the event your area is using a backup frequency that is 30mhz, then the patrol cars are going to need to have either the newer design lowband antenna, or the old-school 1/4 wave design antenna, normally on a ball-mount.
 

btritch

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Well, I have no clue about them still having the equipment to do that, However I DO know that when they went to channel 2 from 154 mhz to 37 mhz they still used the same radio...I wouldn't think that would be possible but who knows. I'll have to spin by the station and see if there are two antenna's on there. I don't know what it would be if it wasn't low band, It would have to be registered with FCC and I am not finding it in their database.. Hmmm...I'll have to look into that, Thanks!
 

mancow

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Base loaded whips have a taller coil section.

Also, many use the huge CB whip style antennas cut down to their freq. range with a big ball mount. You can't miss those.


btritch said:
What's the visual difference between a regular and low band antenna? How can you tell it's lowband, I have never paid any attention but I thought and antenna was an antenna..Didn't know you could tell the difference in them, What exactly is the visual difference...LOL...


Also, I have a dept. here that uses 154.340 and they're FCC License has expired for that channel but other than that when they're repeater got hit by lightning about two weeks ago they switched to Ch. 2, I don't have a registered channel 2 for them besides the 37 mhz lowband they have listed. Could this be the number two channel? I mean I wonder what the odds are?
 

btritch

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So it's NOT possible that they could have their regular and low band frequencies on the same handheld radio then....Hmmm Ok, When I run the FCC License on the uls database I get two of the 154 frequencies and a 158 frequency, However, On the Database here it shows the 158 is the input frequency. Could the input frequency for ch. 1 actually be the output freq. for channel 2?
 

mjthomas59

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It is possible but somewhat unlikely. Under normal circumstances what would happen if the repeater went down would be to A) switch to channel 2, which would still be in the same frequency range as the primary channel. My local town uses the repeater input as 156.03 but their channel 2 is 155.07. This is critical because as you mentioned, no public safety radios atleast that i know of, allow for multi-band transmit(and most are single band receive as well). Many departments utilize the repeater output frequency as a car to car frequency which under normal circumstances isn't monitored by dispatch, or more importantly recorded for later review(by the bosses). It is possible that your dispatch center just started sending and receiving on the repeater output frequency until they get it up and running.

Regardless, if for some reason your department was still on lowband you would know. They would need an additional radio in their car, plus the proper antenna. Many agencies that use lowband have in-car repeaters which could account for the use of their normal handheld, but that is a whole different beast. Basically the in-car repeater could receive on VHF-HI and then rebroadcast through the in-car radio which could be anything from lowband to 800mhz. This type of setup is pretty common in countywide and statewide systems so the officer is still able to use his handheld without being right next to a tower.

Also, what department are you trying to monitor? That might help us determine what is going there. You might also check the frequencies that are listed for any public works, those are occassionally used for public safety, especially in an emergency situation like this(the primary radio system going kaboom)
 

btritch

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System...

Ok, First off, I don't keep the output frequency programmed in because I just thought it was the dispatch to repaeater control channel, I never thought about it might be the bypass channel. So I should enter it into the radio anyway. This would be the so called "Talk Around" channel also probably. Am I on the right track here?

The department I'm monitoring is the South Greene County Fire Department in Greene County/Paragould Arkansas speaking of which are using an ILLEGAL channel. FCC shows their license expired in 2005 and they're channel is now issued to a department in the neighboring Randolph County/Pocahontas Area. And they wonder why they walk all over us here. Cause they're not legal to use it! Duh! ha ha, Anyways, Here's the link in the database to where I am...
Ok, 153 830 is the frequency input and 154 340 is the output, So it's possible that 153 830 could be channel 2 and also be the input frequency then.. Right?

Here's the link, I'm looking at the S. GC FD next to the bottom but this could work the same way on all the other departments as well I suppose.. Here's the link:

http://www.radioreference.com/apps/db/?ctid=135
 

mjthomas59

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Generally speaking, the repeater output is going to be the channel to monitor. During normal operation, it will allow you to hear both the dispatcher and the truck communications on the same frequency.

That being said, the repeater output is also a very common "talk-around" frequency. The output frequency isn't monitored by the dispatcher and is in essence being used as "simplex" frequency.

In your case, i don't see very many options the fire department has access to. I would start with monitoring the western fire channel and see if they've moved over to that channel for the time being until they get their own system back up and running. You could also try the Greene County Rescue squad channel as i doubt that would be used all that much in day to day activities, making it a good choice as a fallback to channel 1. Based on the fact that no other agencies in the county are on lowband i would have to doubt them still running it.(Lowband isn't even listed in the DB for your county).

Good luck!
 
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