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Tennessee Radio Discussion Forum Forum for discussing Radio Information in the State of Tennessee.

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  #521 (permalink)  
Old 02-09-2014, 12:18 PM
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Thanks. I will just leave them as is, since geographically speaking they encircle me in a 20 mile radius.
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  #522 (permalink)  
Old 02-09-2014, 10:16 PM
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New License: WQQJ266
English Mtn, Cocke County
770.28125
770.80625
771.20625

Modifications to existing sites:
Centerville
770.35625
771.28125
771.70625
772.40625
773.20625
773.68125

Lenoir City
769.86875
771.35625
771.59375
772.34375
774.24375
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  #523 (permalink)  
Old 02-10-2014, 11:05 AM
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Quote:
Originally Posted by milf View Post
New License: WQQJ266
English Mtn, Cocke County
770.28125
770.80625
771.20625
Been on the air for a while now, it's called the Newport site in Cocke county. Looks like they added another frequency to the site, 771.20625
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  #524 (permalink)  
Old 02-10-2014, 11:21 AM
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Quote:
Originally Posted by milf View Post

Modifications to existing sites:
Centerville
770.35625
771.28125
771.70625
772.40625
773.20625
773.68125

Lenoir City
769.86875
771.35625
771.59375
772.34375
774.24375
The Centerville site listed above is listed in the DB as Lenior City with those frequencies. And the Lenoir City site above is not listed at all in the DB.

I have figured it out and will submit updates to the DB and work on getting CC info on the site listed as Lenoir City.

The site listed as Lenior City in the DB needs to be changed to Centerville and the Lenoir City site needs to be added.
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  #525 (permalink)  
Old 02-10-2014, 11:38 AM
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The Lenoir City site in the DB should match the FCC listing: http://wireless2.fcc.gov/UlsApp/UlsS...licKey=3156386

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  #526 (permalink)  
Old 02-10-2014, 12:02 PM
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Quote:
Originally Posted by rkm1215 View Post
The Lenoir City site in the DB should match the FCC listing: ULS License - Trunked Public Safety 700 MHz License - WQLE431 - TENNESSEE, STATE OF (TVRCS) - Frequencies Summary

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There are 2 separate sites (locations) listed on that link (Kimbrell & Stevens Ln). The freqencies listed for the Kimbrell site are listed in the DB as "Lenoir City" and those frequencies match up to what milf posted as the Centerville site.

http://wireless2.fcc.gov/UlsApp/UlsS...licKey=3156386

The frequencies listed under then Stevens Lane site are not listed in the DB at all.
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  #527 (permalink)  
Old 02-10-2014, 1:55 PM
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Ran Pro96com on the site milf listed as Lenoir City and got nothing.

I got the following info from running Pro96com on the site that milf listed as Centerville showing the affiliated/neighboring sites:

TowerID TowerIDHex, System ID, Channel, Frequency Status

236 "T0224", 2a5, "01-1258", 769.86875,"" Failed, current

Still not knowledgeable about Pro96com as I have not used it much and I've never run across a status listed as "failed." Does this mean the site is not active? And is that frequency the control channel or is it showing up since it is the first frequency on the list?

Thanks in advance for any help.
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  #528 (permalink)  
Old 02-10-2014, 3:43 PM
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I believe the failed means that the site is not linking with the network for trunking purposes. Usually that indicates changes/modifications/testing modes etc.
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  #529 (permalink)  
Old 02-10-2014, 3:44 PM
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Once you guys have it all figured out and lined up, please submit it all so we can get it all correctly listed. TY!
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  #530 (permalink)  
Old 02-10-2014, 4:04 PM
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Thanks. Will submit as soon as I figure it out

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  #531 (permalink)  
Old 02-12-2014, 8:23 AM
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New tower online today:

Lenoir City

System ID: 2A5
WACN: BEE00
Tower Number (Dec): 2-36
Tower Number (Hex): T0224

i 769.45625
c 769.86875
v 771.35625
v 771.59375
a 772.34375
v 774.24375

Have submitted it.
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Last edited by davewhall29; 02-12-2014 at 8:43 AM..
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  #532 (permalink)  
Old 02-13-2014, 9:06 PM
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I'm in Cumberland county. I can pick up the VHF hinch site pretty well but barely get the 800 site. It's either on the other side of the mountain from me or they have directional antennas pointing at the prison. I've been meaning to take a ride up there but haven't yet. Anyone have any info?

Also, what sites would THP dist 6 use? Those are the only two I can pickup here so I'm guessing they will add more sites? The only ones I hear are the Chattanooga units off Hinch vhf.

I wish they had made it so units weren't restricted to which towers they could affiliate with.
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  #533 (permalink)  
Old 02-13-2014, 9:12 PM
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Quote:
Originally Posted by ccfd7031 View Post
I wish they had made it so units weren't restricted to which towers they could affiliate with.
There's really no choice but to do this, in the interest of managing traffic and keeping busies to a minimum.

Imagine this scenario - a law enforcement conference somewhere. Everyone attending brings their own radio because they want to keep up with what's going on at home. Now you've got numerous main channels from multiple agencies on a site, in addition to the normal traffic. The end result is busies, meaning people who NEED to talk can't.

RF channels are an expensive asset - the hardware is costly and frequencies can be difficult to come by, especially VHF and 800 for trunking, so you have to carefully manage those assets.
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  #534 (permalink)  
Old 02-13-2014, 9:17 PM
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Yes that makes sense I thought about that. Do you know who can and cannot roam like that? You would think at least THP could for pursuit purposes but I imagine they could just hand it off to the next district if need be.
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Old 02-13-2014, 9:28 PM
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In Chattanooga they seem to always move pursuits to a mutual aid channel which I'd assume can roam all over since everybody and their brother has those channels.
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  #536 (permalink)  
Old 02-13-2014, 9:33 PM
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That would work. I'd hate to try to find a channel running 100+ though. Unless the dispatcher can steer their radio to another channel.

Say for example a officer from middle tn comes to east tn can he switch to the east tn agencies talkgroup and talk to them even though his middle tn agencies talkgroup won't affiliate? That wouldn't take up a channel it would just add a radio. This is of course dependant on if they even program all sites in the radios.

I've only seen a tdoc radio and it was a 800 xtl2500. To have everything they would have to use apx.
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Old 02-13-2014, 9:46 PM
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Most of the cops I know don't even look at the knob or display when changing channels - at least on a portable - they've memorized, after several years, where everything is in their primary zone.
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  #538 (permalink)  
Old 02-13-2014, 10:13 PM
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True. I know some guys that are decent with radios. The majority though, that I've dealt with, don't know much more than how to turn them on. As long as it talks to dispatch they aren't inclined to learn anything else.
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  #539 (permalink)  
Old 02-16-2014, 12:30 PM
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You don't have to imagine it. It happened on Aug 1, 2007 during the Minneapolis I-35 bridge collapse (see: graph on page 21, Emergency Communications during the Minneapolis Bridge Disaster). Maximum queue times statewide averaged about 6 seconds from 6:00 pm to 8:30 pm with spikes to about 98 seconds from 7:00 pm to 8:00pm due to public safety folks all over the state setting their radios to the Minneapolis talk groups to listen in thereby tying up frequencies in their local cell sites.
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Old 04-04-2014, 9:49 AM
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Red face Ex-Tennessean really needs some TACNs programing help

My family home is Bristol, TN but I have lived near Petersburg, VA for the past 40 years. Among other activities I program selected Uniden and GRE scanners for VA but not TN. My oldest son KJ4NAU lives in Bristol and his job requires frequent travel to/from Bristol to Knoxville out to Cookeville, north to SE KY and SW about halfway to Chattanooga.

I programed his 996XT for GPS controlled scanning for VA and some TN counties along his routes of travel. They worked fine but he was not hearing THP. Now I know why. When I lived in Bristol THP was 42.42 mhz. Kingsport, etc. I vaguely knew of TACN but had not checked the installation progress for some time. I now am programing the various TACNs, preferably the mountaintop sites where possible along his routes. So far I have programed 15 TACNs and have 9 System Quick Keys(SQK) available for TACN programing.

I know I need to add more statewide type talkgroups for all TACNs. I could easily program 40 SQKs for TACNs. VA STARS uses vhf trs and TACNs mostly 700 mhz. Is atmospheric signal attenuation on 700 mhz. resulting in poor signal coverage causing more TACN "filler" sites to be built? On vhf the VA STARS system in SW VA has poor signal coverage in some counties and some "filler" sites are planned.

It looks TACN still is a work in progress like STARS was in VA. I am getting headaches trying to program all the relationships between TACNs and the appropriate city/county interfaces. i.e.,simulcasting on a TACN in addition to their vhf/uhf licensed frequencies or solely on TACN...I guess.

1. Am I correct in assuming all TACN trs are "P25 Standard" and not "Motorola"?

2. Are the TACN frequencies and talkgroups listed in the RR database mostly correct or will I have to wade through 27 pages of RR postings and pick out the latest site info, frequencies, talkgroups findings individuals have monitored like I did with the VA STARS system's sites?

3. What are other recommended talkgroups, excluding those unique to each district, THP statewide TG 47046 and the various Mutual Aid talkgroups, should I program for my TACNS?

4. Are there district unique or statewide Game Warden and Forestry Dept. TACN talkgroups? I saw only a Wildlife Resources Agency for Region 3 and East listed.

5. For talkgroup 47019 Kingsport Dist. 5 Dispatch encrypted and other TACN similar talkgroups, is it 100% encrypted or occasionally encrypted? If 100% then I will not program it.

6. It would be helpful to me if some "lessons learned" comments could be posted.

Tnx. very much for your time.

John
W4UVV
Prince George, VA
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