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  #1 (permalink)  
Old 03-20-2011, 10:56 AM
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Default USVI Police using trunking?

Does anyone have updated information on what system/frequencies the USVI PD is using? I read that they are now using an MPT type trunking system.
http://www.radioandtrunking.com/latest-news.htm
http://www.radioandtrunking.com/track-record.htm


I also noticed that this system has no talkgroup information: Virgin Islands Public Safety Trunking System, St. Thomas, Virgin Islands - Scanner Frequencies

Has anyone confirmed this system?

Last edited by sflmonitor; 03-20-2011 at 11:26 AM..
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Old 10-24-2012, 9:58 AM
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Default USVI uses MPT-1327

I live in St. Croix. The USVI for some odd (but predictable, we don't do anything normal here) reason decided to procure an MPT-1327 system for their police radio.

I've been using Trunkview and a Uniden BC296T scanner to try and figure out the channel arrangements but haven't been successful. The good news is that if you search between 158.000 and 162.000 then lock out the data channels you will hear a ton of interesting stuff going on.

Hope this helps!

Sean
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Old 10-25-2012, 5:40 AM
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You may need to use a Custom Band Plan.

Just out of curiosity, what System IDs do the MPT1327 Sites broadcast.

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Last edited by Comint; 10-25-2012 at 6:51 AM..
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Old 10-25-2012, 9:22 AM
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Here's what I logged on 10/23/2012 from my home near Salt River, St. Croix:

50C9 ON 158.2100 CHANNEL 233
5029 ON 158.7300 CHANNEL 032
50C1 ON 158.8100 (DIDN'T GET CHANNEL NUMBER)
5061 ON 158.8350 (DIDN'T GET CHANNEL NUMBER)
5019 ON 158.8950 CHANNEL 021
5009 ON 159.0000 CHANNEL 002
5011 ON 159.2100 CHANNEL 012
5021 on 159.42000 CHANNEL 027
50B1 ON 159.9600 CHANNEL 208
2D09 ON 160.2450 (Never saw anything other than Aloha/Broadcast on this freq)

I heard traffic on:
158.9875
159.1500
159.2300
159.3000
159.3150
159.3400
159.3450
159.3500
159.3625
159.4500
159.4625
159.9000
160.0000
160.0950
160.2750
160.5850

Need to figure out how to have trunkview track this since I can't seem to figure out a base frequency/interval paring that works. Any thoughts out there?

Thanks,
Sean
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Old 10-25-2012, 9:42 AM
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Sean

You are definitely going to need a Custom Band Plan.

Does the Network broadcast Vote Now Advice messages, or Announce Control Channel messages, as in attached image.

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Old 10-25-2012, 9:48 AM
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It was late but I do remember seeing those sort of messages.

Sean
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Old 10-25-2012, 10:25 AM
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Quote:
Originally Posted by stiphy View Post
It was late but I do remember seeing those sort of messages.
It's late here as well, and asking that question was a waste of time, as they only make it easier to determine the CC and SysID of other Sites, and those details you have already provided.

I don't suppose you have more than one scanner. If you did, you could have one scanning from say 158.500 to 161 MHz, while using the second one with TrunkView. When you get a Go To Voice Channel message, note what frequency the second scanner stops on, and that should be the GoTo channel. You would then add that Frequency and Channel Number into the Profile, and gradually build up the Custom Band Plan. When using a Custom Band Plan, you don't use a Base Frequency.

Have a look at the TrunkView Site (linato.net/trunkview) for information on Profiles.

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Old 10-25-2012, 10:36 AM
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I actually do have 2 scanners and was trying this for a while before I ran out of time. I logged what I "thought" was the frequencies for the channels in question but I wasn't sure. I'll do some more digging. I do need to read up on profiles in Trunkview, I saw the custom band plan optoin but wasn't sure how to properly set it up and get it to follow that.

Thanks for the help, I'll post what I find when I get some time here.

Sean


Quote:
Originally Posted by Comint View Post
It's late here as well, and asking that question was a waste of time, as they only make it easier to determine the CC and SysID of other Sites, and those details you have already provided.

I don't suppose you have more than one scanner. If you did, you could have one scanning from say 158.500 to 161 MHz, while using the second one with TrunkView. When you get a Go To Voice Channel message, note what frequency the second scanner stops on, and that should be the GoTo channel. You would then add that Frequency and Channel Number into the Profile, and gradually build up the Custom Band Plan. When using a Custom Band Plan, you don't use a Base Frequency.

Have a look at the TrunkView Site (linato.net/trunkview) for information on Profiles.

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Old 10-25-2012, 7:55 PM
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Quote:
Originally Posted by stiphy View Post
50C9 ON 158.2100 CHANNEL 233 - possibly 158.2050
5029 ON 158.7300 CHANNEL 032
50C1 ON 158.8100 (DIDN'T GET CHANNEL NUMBER) - possibly 158.8050
5061 ON 158.8350 (DIDN'T GET CHANNEL NUMBER)
5019 ON 158.8950 CHANNEL 021
5009 ON 159.0000 CHANNEL 002
5011 ON 159.2100 CHANNEL 012
5021 on 159.42000 CHANNEL 027
50B1 ON 159.9600 CHANNEL 208
2D09 ON 160.2450 (Never saw anything other than Aloha/Broadcast on this freq)

I heard traffic on:
158.9875 - possibly 158.9850
159.1500
159.2300 - possibly 159.2250
159.3000
159.3150
159.3400 - possibly 159.3450
159.3450
159.3500 - possibly 159.3450 or 159.3600
159.3625 - possibly 159.3600
159.4500
159.4625 - possibly 159.4650
159.9000
160.0000 - possibly 160.0050
160.0950
160.2750
160.5850 - possibly 160.5900
.
The frequencies shown in RED above, don't look "right".

I believe the US uses 15 kHz Channel Spacing in this segment of the Band, and the highlighted frequencies don't fit in with that spacing.

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Old 10-26-2012, 5:00 AM
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Quote:
Originally Posted by stiphy View Post
2D09 ON 160.2450 (Never saw anything other than Aloha/Broadcast on this freq)
According to the FCC Database, it seems this frequency may belong to a Pryce Incorporated Trunked Radio Site on Flag Hill, at Charlotte Amali, although that is about 40 miles away.

The other frequencies are:-
159.4050
159.6450
159.8850, and
160.5150

They also have another Site on Benner Hill, at St Thomas, with the following frequencies:-
159.8250
160.1700
160.3050
160.4550, and
160.6050

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Old 10-26-2012, 11:29 AM
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Quote:
Originally Posted by Comint View Post
According to the FCC Database, it seems this frequency may belong to a Pryce Incorporated Trunked Radio Site on Flag Hill, at Charlotte Amali, although that is about 40 miles away.

The other frequencies are:-
159.4050
159.6450
159.8850, and
160.5150

They also have another Site on Benner Hill, at St Thomas, with the following frequencies:-
159.8250
160.1700
160.3050
160.4550, and
160.6050

--
Comint
Thanks for the info Comint,

I am receiving signals from Charlotte Amalie as I'm on the north shore of St. Croix and can see the mountaintops from my deck. I was listening to a taxicab company pick people up in STT last night

I'm not surprised about the frequencies in red, my scanner was in search mode and this was just where I noted that it stopped but oftentimes I could go up a click or down a click and still receive the frequency so it was probably off a bit.

Hope to find a little time this weekend to start trying to put together the custom plan.

Sean
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Old 10-26-2012, 5:00 PM
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Enjoy these two files.
a.) KMZ/KML requires Google Earth
b.) xls - Microsoft Excel

Quote:
Originally Posted by stiphy View Post
Thanks for the info Comint,

I am receiving signals from Charlotte Amalie as I'm on the north shore of St. Croix and can see the mountaintops from my deck. I was listening to a taxicab company pick people up in STT last night

I'm not surprised about the frequencies in red, my scanner was in search mode and this was just where I noted that it stopped but oftentimes I could go up a click or down a click and still receive the frequency so it was probably off a bit.

Hope to find a little time this weekend to start trying to put together the custom plan.

Sean
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File Type: zip USVI Search_Box_Results_fmt_lmpriv_1026201245507PM.zip (110.7 KB, 28 views)
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