2012-2014 VIPER Discussion (Archive)
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mhodgson
Member
Pboy, Wake Forest is now a simulcast site. We havent changed the site count since every time we do, people start recalculating how much funding we still need to complete. There are instances where a site may actually be added that we dont publish.....Mebane would be a good example. That site was 100% locally funded to increase the coverage but wasnt part of the original VIPER plan.
M
M
robkermit
Member
Hearing Talkgroup 10640 on Woody's Knob. Not in database.
Sounds like Mitchell County Transportation to me.
Sounds like Mitchell County Transportation to me.
robkermit
Member
Does anyone know if there is a service issue with VIPER on Locust or Woodys Knob? I am getting full signal but the audio quality has been very poor and choppy for most of the day.
Why not just search for it? Short of being in a hole, you should be able to hear it on your scanner. A quick FCC search for YF licenses in Alamance County show: WQOV657. It's been active for a week now...y'all gotta step your game up.
WQOV657 (NORTH CAROLINA STATE HIGHWAY PATROL) FCC Callsign Details
WQOV657 (NORTH CAROLINA STATE HIGHWAY PATROL) FCC Callsign Details
reconrider8
Member
in his defence chris i never know what type to search for either lol
Why couldn't you just program the current AND the rebanded frequencies into your scanner? That way you hear them both before and after rebanding takes place and you don't need to know exactly when it happens.
These schedules have a way of changing.
robkermit
Member
I was thinking the same thing this guy was. In fact, that is exactly what I did since I am on the far west side of the state and most likely to be one of the first sites to experience rebanding.
I didn't think this to be rocket science, and if you have a Uniden scanner then you'll know when the rebanding is complete because the control channel that flashes up will be the new frequency.
He's right! I tried to search, but I'm just not familiar with the FCC database.
Searching with your scanner is what I meant. 867-868 MHz, and now 852-853 MHz. Mebane should be an easy find for you regardless of where you live in Alamance County.
Anyways, time for a brief lesson.
License Search - Advanced License Search
Select "YF - Public Safety Ntl Plan, 821-824/866-869 MHz, Trunked" and/or "YE - PubSafty/SpecEmer/PubSaftyNtlPlan, 806-817/851-862 MHz, Trunked".
Hold Ctrl down while clicking to select more than one.
Scroll to the bottom and select "Geosearch".
Select your state and county, do a radius search from your local address, do a radius search from lat/long coordinates, or do a frequency range search (852-853 or 867-868) and click search. That should return all the relevant information you could ever want.
Once you get the hang of that, start experimenting with searching licensing applications and ASR applications for new towers to get an idea of what future sites may be coming online in the coming months.
Just remember, the FCC data isn't always representative of how things are IRL. Businesses especially have a knack for over-licensing sites & frequencies so they have flexibility to move things around. VIPER has a few sites with extra frequencies licensed that aren't in use so be sure to run a control channel decoding program to get all the details logged over time before submitting to the database.
Anyways, time for a brief lesson.
License Search - Advanced License Search
Select "YF - Public Safety Ntl Plan, 821-824/866-869 MHz, Trunked" and/or "YE - PubSafty/SpecEmer/PubSaftyNtlPlan, 806-817/851-862 MHz, Trunked".
Hold Ctrl down while clicking to select more than one.
Scroll to the bottom and select "Geosearch".
Select your state and county, do a radius search from your local address, do a radius search from lat/long coordinates, or do a frequency range search (852-853 or 867-868) and click search. That should return all the relevant information you could ever want.
Once you get the hang of that, start experimenting with searching licensing applications and ASR applications for new towers to get an idea of what future sites may be coming online in the coming months.
Just remember, the FCC data isn't always representative of how things are IRL. Businesses especially have a knack for over-licensing sites & frequencies so they have flexibility to move things around. VIPER has a few sites with extra frequencies licensed that aren't in use so be sure to run a control channel decoding program to get all the details logged over time before submitting to the database.
chuckinnc
Member
Has Catawba county rebanded yet
I live in Catawba county and my digital scanner quit receiving P25 2 days ago, now it only picks up analog. I thought the scanner had a problem but after reading some of the rebanding post then maybe Its just a
programming problem?
I live in Catawba county and my digital scanner quit receiving P25 2 days ago, now it only picks up analog. I thought the scanner had a problem but after reading some of the rebanding post then maybe Its just a
programming problem?
robkermit
Member
chuckinnc - Please clarify. VIPER is P16 meaning that it is a mixture of analog and digital talkgroups in the 4.1 SmartZone system. The last time I checked, the towers in Catawba County are still using P16 4.1 SmartZone technology. However, I do believe the frequencies for Catawba County's towers have gone through the re-banding procedure.
So we can help you further, in Catawba County, are you picking up the analog talkgroups off VIPER but no digital talkgruops? Or are you not picking up VIPER altogether and simply picking up an analog conventional system, such as the VHF radio system?
Depending on the scanner you have, the easiest way (on Uniden digital scaner) to test for VIPER reception is to press HOLD on the keypad while it is trying to pick up the system. If you are able to pick up the tower, then you will hear the "analog side" of the control channel. If you have never heard the analog side of a digital channel, it will sound like a lot of snow/noise and will not stop. If you do not pick up the control channel, then most likely the frequency has been re-banded.
The best method until re-banding is completed across the state is to program the "before" and "after" frequencies from the database in as the control channel frequencies for each tower.
For example if the frequency is showing in the 860 MHz range, ie: 867.000 then you would subtract 15 making it 852.000 MHz. If the database already shows control channel in 860 MHz range, then it is not a rebanded frequency. If it shows 850 MHz frequency, then it is, in fact, rebanded.
If you don't want to go through the programming steps without verification first, then do a scan by frequency and enter the lower end as 850 and the top as 870 and let it scan. It will eventually stop on the control channels and you will hear the "analog side" of the digital control channel.
If your control channel was 868.125 and the scanner stops at 853.125 then you would know for sure that the frequency for your tower has gone through the re-banding procedure, and as a result your scanner will nonetheless need to be re-tuned by removing the old frequency for each re-banded tower will need to be removed and the new frequency added in its place.
If your tower has not gone through the re-banding process yet, or you have towers that you monitor that have not gone through the process, then you should go ahead and put the re-banded frequency in with the old frequencies so that when they do re-band, you won't even notice.
Of course, this should be done for the primary and secondary control frequencies for each tower.
Then I would begin making a new template that is "True P25" and you can leave the old frequencies out of your template as the system would have gone through the re-banding stage by the time P25 is rolled out.
I hope this info helped you in some way.
So we can help you further, in Catawba County, are you picking up the analog talkgroups off VIPER but no digital talkgruops? Or are you not picking up VIPER altogether and simply picking up an analog conventional system, such as the VHF radio system?
Depending on the scanner you have, the easiest way (on Uniden digital scaner) to test for VIPER reception is to press HOLD on the keypad while it is trying to pick up the system. If you are able to pick up the tower, then you will hear the "analog side" of the control channel. If you have never heard the analog side of a digital channel, it will sound like a lot of snow/noise and will not stop. If you do not pick up the control channel, then most likely the frequency has been re-banded.
The best method until re-banding is completed across the state is to program the "before" and "after" frequencies from the database in as the control channel frequencies for each tower.
For example if the frequency is showing in the 860 MHz range, ie: 867.000 then you would subtract 15 making it 852.000 MHz. If the database already shows control channel in 860 MHz range, then it is not a rebanded frequency. If it shows 850 MHz frequency, then it is, in fact, rebanded.
If you don't want to go through the programming steps without verification first, then do a scan by frequency and enter the lower end as 850 and the top as 870 and let it scan. It will eventually stop on the control channels and you will hear the "analog side" of the digital control channel.
If your control channel was 868.125 and the scanner stops at 853.125 then you would know for sure that the frequency for your tower has gone through the re-banding procedure, and as a result your scanner will nonetheless need to be re-tuned by removing the old frequency for each re-banded tower will need to be removed and the new frequency added in its place.
If your tower has not gone through the re-banding process yet, or you have towers that you monitor that have not gone through the process, then you should go ahead and put the re-banded frequency in with the old frequencies so that when they do re-band, you won't even notice.
Of course, this should be done for the primary and secondary control frequencies for each tower.
Then I would begin making a new template that is "True P25" and you can leave the old frequencies out of your template as the system would have gone through the re-banding stage by the time P25 is rolled out.
I hope this info helped you in some way.
chuckinnc
Member
I think the problem has been sloved
Yes I still pickup all the old analog frequency's just fine but digital banks went dead with no signal strength or indication it was receiving a control channel.
. After checking the database tonight, I decided to program in one of the towers as a wildcard, the scanner (pro106) works fine again, I have signal strength and the {T} is back indicating it's found the control signal again. So it looks like the county did go through rebanding this week.
Yes I still pickup all the old analog frequency's just fine but digital banks went dead with no signal strength or indication it was receiving a control channel.
. After checking the database tonight, I decided to program in one of the towers as a wildcard, the scanner (pro106) works fine again, I have signal strength and the {T} is back indicating it's found the control signal again. So it looks like the county did go through rebanding this week.
bear780ks
Member
Viper System: Scanning Report in the June issue
Wanted to say a Howdy.. And ask if ya'll have seen the new June Monitoring Times it's got a nice piece on the VIPER system from Mr. Dan Veeneman..
MTXpress, June 2013
Enjoy.. Ra
Wanted to say a Howdy.. And ask if ya'll have seen the new June Monitoring Times it's got a nice piece on the VIPER system from Mr. Dan Veeneman..
MTXpress, June 2013
Enjoy.. Ra
robkermit
Member
Based on the information already in the database, all three counties have gone through Rebsndjng.
Therefore you will need to update the frequency for each tower you monitor.
Please keep in mind that frequency rebanding only applies to 800MHz frequencies, however VHF will not need rebanding adjustments now or in the future.
Therefore you will need to update the frequency for each tower you monitor.
Please keep in mind that frequency rebanding only applies to 800MHz frequencies, however VHF will not need rebanding adjustments now or in the future.
Viper Western Zone Rebanding - Murphy
Western Zone C92D, Site 45 (Murphy)
Appears to be rebanded. Active with new freq's today.
NEW control channel = 853.8375
Unitrunker shows Alt.CC = 863.1875 and new voice channels of
851.3375, 862.8875, 867.0750, and 867.3375.
Also, Unitrunker readings on S-45 (Murphy) and S-8 (Joanna Bald) show peer site changes:
1) Peer info shows that S-10 (Wine Springs) will have NEW cc of 864.8625, but I can't pick up any data on old or new cc today.
2) Peer info shows that S-32 (Chunky Girl Gap) will have NEW cc of 863.1625, but I don't think this site has ever become active yet. No data ever recv'd on old or new cc.
73's
Vern
Western Zone C92D, Site 45 (Murphy)
Appears to be rebanded. Active with new freq's today.
NEW control channel = 853.8375
Unitrunker shows Alt.CC = 863.1875 and new voice channels of
851.3375, 862.8875, 867.0750, and 867.3375.
Also, Unitrunker readings on S-45 (Murphy) and S-8 (Joanna Bald) show peer site changes:
1) Peer info shows that S-10 (Wine Springs) will have NEW cc of 864.8625, but I can't pick up any data on old or new cc today.
2) Peer info shows that S-32 (Chunky Girl Gap) will have NEW cc of 863.1625, but I don't think this site has ever become active yet. No data ever recv'd on old or new cc.
73's
Vern
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Try these for the Turner Mountain site:
6 mi W of Mt Airy
WQCV477
851.1625
851.4750
852.6125
852.9125
853.6375
866.1625
866.4750
867.6125
867.9125
868.6375
Vern,
Make sure you update the band plan in Trunk88 then apply the new bandplan. Trunk88 is misinterpretting the data you're getting, which explains the 862 & 863 MHz channels.
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