• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Low Band VHF IN 2018

Status
Not open for further replies.

rbrtklamp2

Member
Premium Subscriber
Joined
Dec 8, 2005
Messages
816
Location
Dupage County, Illinois
#2
I have a local public works agency in my area in the 45. XX range and I believe my county still uses a 39.XX frequency for emergency managment plus using rolling code coice inversion on it, and I believe my state has a handful of 45.xx range frequencies still in use for the IL EMA and possibly the IL Nat Guard as well.

Sent from my SM-N910V using Tapatalk
 

kruser

Member
Premium Subscriber
Joined
Nov 25, 2007
Messages
2,562
Location
St. Louis County, MO
#3
Are any public safety agencies or utilities still using low band vhf?
I don't know the numbers but there are actually quite a few licensed users on low band.

Here in Missouri, the State Patrol is keeping their low band system running along with the statewide P25 system.
They actively use the low band system when a trooper cannot be reached on the P25 system. They also conduct low band tests on the weekends.
I'm not sure how many mobile users still have low band radios in their cars but I've also not heard of them removing any.

I also recently read a post here about P25 showing up on low band. I can't recall the user or user type though.
I've always wondered how well a P25 system would work on low band with the bands crazy propagation.
I know I pickup a fair amount of several hundred mile skip signals when tuning around for distant site within my state. It's kind of cool seeing a P25 site pop up from several states away!

Not sure about utility companies. I know low band was very popular with utilities. Our old electric company had a well built low band network in the state but it had its problems just like public safety with getting signals in and out of the hills of the Ozarks.
 

kruser

Member
Premium Subscriber
Joined
Nov 25, 2007
Messages
2,562
Location
St. Louis County, MO
#4
Are any public safety agencies or utilities still using low band vhf?
I just ran a license check for Missouri alone.
The FCC site shows 241 licensed users on low band.
I noticed many of them showed very recent renewals also so those users may be actively using low band or maintaining their license for a backup radio system.

Surprisingly, the BNSF railroad held a lot of active licenses across this state. I've never tried monitoring any rail activity on low band!
 
Joined
Feb 21, 2014
Messages
398
Location
Western NJ
#5
Our local fire company still uses low band VHF for comms when activated, then at some point they switch to UHF. In general though I don't hear much anymore on 30 - 50 MHz. Might pick up some interesting comms when the band is open though.
 

daddyjohn

Member
Premium Subscriber
Joined
Dec 28, 2016
Messages
92
#6
Empire District Electric still uses low band in Joplin, Mo.

Sent from my SAMSUNG-SM-G890A using Tapatalk
 

kruser

Member
Premium Subscriber
Joined
Nov 25, 2007
Messages
2,562
Location
St. Louis County, MO
#9
44.58 is BNSF's ELOS data system. If you put your scanner in AM mode and open the squelch you might hear extremely short data bursts if there are any in your area or the band is open.
Thanks for that info!
I figured it must be used for something common seeing every BNSF low band license had the same frequency licensed.
 

mm

Member
Joined
Dec 19, 2002
Messages
592
#10
46.xx MHz fire paging, 48.xx MHz electric utility co-op, 40.9 MHz national guard helicopters and some 44.xx MHz private loggers/forestry is still heard on a weekly basis in Northwest Oregon.
 
Joined
Aug 17, 2003
Messages
3,567
Location
Peoria, AZ.
#14
Maricopa County (Phoenix, AZ) still has a lowband simplex frequency for emergency management.

El Paso Natural Gas Company may still have several lowband repeaters around Arizona.

There are still 4 lowband frequencies assigned for nationwide interoperability use.

John
Peoria, AZ
 

JeffDS3

Member
Premium Subscriber
Joined
Jun 5, 2016
Messages
430
Location
Kings County, CA
#15
The California Highway Patrol (CHP) still uses VHF Low Band for their primary dispatch and has no plans to change.
https://www.radioreference.com/apps/db/?aid=995
It kind of surprises me that they still do. You would think they would move to a 700 system and cut down on radio gear they need. Or even have all state services move to a consolidated P25 system like some states.
 

SteveSimpkin

Member
Premium Subscriber
Joined
Apr 13, 2009
Messages
620
Location
Lancaster, CA
#16
It kind of surprises me that they still do. You would think they would move to a 700 system and cut down on radio gear they need. Or even have all state services move to a consolidated P25 system like some states.
I *think* it is because of propagation and coverage. The terrain is so extreme in places, like Truckee, that if they moved to 700/800 MHz they would need a lot more radio sites.
Some additional information about the history of CHP's radios.
 

JeffDS3

Member
Premium Subscriber
Joined
Jun 5, 2016
Messages
430
Location
Kings County, CA
#17
I *think* it is because of propagation and coverage. The terrain is so extreme in places, like Truckee, that if they moved to 700/800 MHz they would need a lot more radio sites.
Some additional information about the history of CHP's radios.
I can see that in some areas, but not everywhere. It’s also weird that they also still use standard UHF as well, so that’s at least 3 radios per unit.
 
Status
Not open for further replies.
Top