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General Scanning Discussion - For general questions not specific to a model of scanner or general discussion of use of a scanner. Manufacturer specific posts should be directed to the appropriate forums below and location specific posts should go in the appropriate regional forum..

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  #1 (permalink)  
Old 06-07-2018, 10:45 AM
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Default How to tell if a system is trunked

Ok so I have searched and searched and maybe I am asking the wrong question to google and RR.
I would like to find frequencies in my area that are not listed yet but know that they have a fcc license.
This is first time I'm trying to do this so please bear with me.
Wast management is a garbage company in my area, I found their license on the fcc website
ULS License - Industrial/Business Pool, Conventional License - KNEU761 - WASTE MANAGEMENT HOLDINGS INC. - Locations Summary
it says it is current and does have a tower located about 10 miles from my house south by southwest. I can pick up most traffic from Camelback mountain which is about 12 miles away west.
So their main fixed antenna is a FB4 which is saying is a community repeater which can be conventional or LTR. I'm assuming I would want to listen to 463.6250 which would be the closest repeater to me.
I've currently been using a uniden homepatrol 2 with the extreme upgrade. My issue is, I tried doing a conventional discovery mode on that frequency 463.6250, but it was just short bursts of static. I did not get a pl code for anything it found, so I'm assuming it is a trunked system. But... I can only analyze trunked systems if it is in the nationwide database (I think)
Again I'm very new at trying to do this so bear with my long post and possible incorrect thoughts on what is going on.
Thanks
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Old 06-07-2018, 10:55 AM
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If you hear buzzing it is probably a DMR system which the HP-2 can not decode.
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Old 06-07-2018, 10:57 AM
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Quote:
Originally Posted by W8RMH View Post
If you hear buzzing it is probably a DMR system which the HP-2 can not decode.
not buzzing, just kinda very low static. Only comes on for a second or so.
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Old 06-07-2018, 11:02 AM
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Radio Shops / License Holders don't always follow the rules, that said my comments are based solely on reading the actual FCC License.

FB4 - does mean a Community Repeater, but does require each User Agency/Company to hold a license.

The License is an IG - Industrial/Business Pool, Conventional
which means Not Trunked.

In the emissions it is listed as 11K2F3E
which is Analog


Quote:
Originally Posted by nepatitan View Post
Ok so I have searched and searched and maybe I am asking the wrong question to google and RR.
I would like to find frequencies in my area that are not listed yet but know that they have a fcc license.
This is first time I'm trying to do this so please bear with me.
Wast management is a garbage company in my area, I found their license on the fcc website
ULS License - Industrial/Business Pool, Conventional License - KNEU761 - WASTE MANAGEMENT HOLDINGS INC. - Locations Summary
it says it is current and does have a tower located about 10 miles from my house south by southwest. I can pick up most traffic from Camelback mountain which is about 12 miles away west.
So their main fixed antenna is a FB4 which is saying is a community repeater which can be conventional or LTR. I'm assuming I would want to listen to 463.6250 which would be the closest repeater to me.
I've currently been using a uniden homepatrol 2 with the extreme upgrade. My issue is, I tried doing a conventional discovery mode on that frequency 463.6250, but it was just short bursts of static. I did not get a pl code for anything it found, so I'm assuming it is a trunked system. But... I can only analyze trunked systems if it is in the nationwide database (I think)
Again I'm very new at trying to do this so bear with my long post and possible incorrect thoughts on what is going on.
Thanks
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Old 06-07-2018, 11:04 AM
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Based on that ULS link, 463.625 is showing an analog voice emission code of 11K2F3E, so it wouldn't be a DMR data signal. DMR emission codes are typically 7K60FXD for data and 7K60FXE for voice
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Old 06-07-2018, 11:09 AM
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Quote:
Originally Posted by ecps92 View Post
Radio Shops / License Holders don't always follow the rules, that said my comments are based solely on reading the actual FCC License.

FB4 - does mean a Community Repeater, but does require each User Agency/Company to hold a license.

The License is an IG - Industrial/Business Pool, Conventional
which means Not Trunked.

In the emissions it is listed as 11K2F3E
which is Analog
ok so I was partially right at my findings, I got like 20 tabs open lol.
should I try to do a discovery and let it run for a few hours?
I believe they pick up garbage in the area today.
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Old 06-07-2018, 11:10 AM
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Quote:
Originally Posted by W3JMC View Post
Based on that ULS link, 463.625 is showing an analog voice emission code of 11K2F3E, so it wouldn't be a DMR data signal. DMR emission codes are typically 7K60FXD for data and 7K60FXE for voice
so I can google the codes and it will usually show me more info on that?
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Old 06-07-2018, 11:11 AM
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Quote:
Originally Posted by nepatitan View Post
not buzzing, just kinda very low static. Only comes on for a second or so.
How long are the data bursts and how often do they repeat?
It could be LTR, Passport or IDAS trunking or something else like GPS RTK. It could be something else besides the license you posted.
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Old 06-07-2018, 11:14 AM
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Quote:
Originally Posted by nepatitan View Post
so I can google the codes and it will usually show me more info on that?
See emissions designator info here:
https://wiki.radioreference.com/inde...ion_Designator
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Old 06-07-2018, 11:15 AM
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Quote:
Originally Posted by nd5y View Post
How long are the data bursts and how often do they repeat?
It could be LTR, Passport or IDAS trunking or something else like GPS RTK. It could be something else besides the license you posted.
The bursts are about 1 second long.
Thats why I was wondering if i should let it run longer and see what else pops up
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Old 06-07-2018, 11:16 AM
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Quote:
Originally Posted by W3JMC View Post
See emissions designator info here:
https://wiki.radioreference.com/inde...ion_Designator
sweet thanks,
I also have antennasearch up and looking at some areas with waste management
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Old 06-07-2018, 11:20 AM
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FCC license search also reveals this licensee in close proximity to the licensee you posted & this one has DMR emissions on the same frequency (site 4, Stroudsburg, PA):
https://www.radioreference.com/apps/...llsign=WPMT607

Perhaps this is what you are hearing?
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Last edited by W3JMC; 06-07-2018 at 11:27 AM..
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Old 06-07-2018, 11:28 AM
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Quote:
Originally Posted by W3JMC View Post
FCC license search also reveals this licensee in close proximity to the licensee you posted & this one has DMR emissions on the same frequency (site 4, Stroudsburg, PA):
https://www.radioreference.com/apps/...llsign=WPMT607
ULS License - Industrial/Business Pool, Conventional License - WPMT607 - INDUSTRIAL COMMUNICATIONS COMPANY - Frequencies Summary
Perhaps this is what you are hearing?
yes I should definitely be able to pick up site 4 and 5. I have the discovery in progress. I'll let it run for an hour and see what I come up with. But I think you are right. Its difficult though to know which businesses use cellphones now as opposed to radios. I see the WM is active until 2024 but that doesn;t mean they necessarily use it right?
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Old 06-07-2018, 11:31 AM
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Quote:
Originally Posted by nepatitan View Post
yes I should definitely be able to pick up site 4 and 5. I have the discovery in progress. Its difficult though to know which businesses use cellphones now as opposed to radios.
That's what makes our hobby so much fun. Figuring out who uses what
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Old 06-07-2018, 11:33 AM
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Quote:
Originally Posted by W3JMC View Post
That's what makes our hobby so much fun. Figuring out who uses what
lol fun and when you're new CONFUSING lol.
From what I've seen industrial communications is HUGE here. Its been around a while and I think bell or some other phone company owned it in the 80s
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Old 06-07-2018, 1:11 PM
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Emission Designator - The RadioReference Wiki
Google not needed, lots of intel/info in the RR Wiki

Quote:
Originally Posted by nepatitan View Post
so I can google the codes and it will usually show me more info on that?
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Old 06-07-2018, 2:08 PM
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Quote:
Originally Posted by ecps92 View Post
Emission Designator - The RadioReference Wiki
Google not needed, lots of intel/info in the RR Wiki
yuppers been checking it out. Lots of bookmarked pages lol
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