Mystery Frequency?

[peten1vak]

Using DSD plus fast lane this morning i've discovered P25 P1 frequency that I've never seen before. This was a control channel of 159.2175. I'm in Pitt county and I was thinking it might be the Wayne County system because they are using 150 megahertz band for their system. I check the database and it's not them. I did an FCC lookup this frequency is licensed to the station in Lenoir North Carolina which is nowhere near me? I'm attaching a jpeg with the DSD data maybe someone with more experience than me can figure this out.

 

[trumpetman]

VA STARS South Hill site. Notice the SysID=19E, which is STARS. The ACI (site NAC) is 196. And the RFSS_STS_BCST is RFSS 2, site 4, which is site 2-004 in the database.

Virginia Statewide Agencies Radio System (STARS) Site: South Hill

Virginia Statewide Agencies Radio System (STARS) Site: South Hill Details

www.radioreference.com

 

[Whiskey3JMC]

SysID = 19E

Virginia Statewide Agencies Radio System (STARS) Trunking System, Statewide, Virginia

Virginia Statewide Agencies Radio System (STARS) Trunking System Profile

www.radioreference.com

2 (2)

004 (4)

South Hill

Mecklenburg

151.1675c

158.7675

159.0075

159.2175c

159.3225

 

[peten1vak]

Thank you. This is quite a long ways from me here in Pitt county. Receiving it on a discone up about 35 ft. I think something is going on with VHF propagation this morning because I also picked up a decoder of a dmpr on 168.0 megahertz. Never seen that before? Maybe you could give me a tip on how you decoded that so fast? What did you look at and how do you research it to find out what it is?

 

[kc2asb]

Thank you. This is quite a long ways from me here in Pitt county. Receiving it on a discone up about 35 ft. I think something is going on with VHF propagation this morning because I also picked up a decoder of a dmpr on 168.0 megahertz. Never seen that before? Maybe you could give me a tip on how you decoded that so fast? What did you look at and how do you research it to find out what it is?

It's Tropospheric Ducting, which is relatively common during the Spring and Summer months. VHF and UHF signals can travel hundreds of miles.

 

[peten1vak]

Yeah it's really interesting i've never experienced before I've heard about it. I've been a ham since 1996. Mostly CW and HF and just started using 6 m two years ago and I'm still waiting for an opening! I'm sure there's been some I've just never been in at the right time. Thanks everyone for your help!

 

[ecps92]

Yeah it's really interesting i've never experienced before I've heard about it. I've been a ham since 1996. Mostly CW and HF and just started using 6 m two years ago and I'm still waiting for an opening! I'm sure there's been some I've just never been in at the right time. Thanks everyone for your help!

a Good source to check for Ducting is

VHF Real Time Propagation

An interactive map that shows real time, worldwide VHF activity highlighting enhaned propagation typical to tropospheric ducting.

vhf.dxview.org

 

[kc2asb]

Yeah it's really interesting i've never experienced before I've heard about it. I've been a ham since 1996. Mostly CW and HF and just started using 6 m two years ago and I'm still waiting for an opening! I'm sure there's been some I've just never been in at the right time. Thanks everyone for your help!

I've had my license since 1997. Tuning across 2m one night back in the 90's looking for new repeaters, I stopped on one and heard one of the operators ID with a "4" in his callsign. Turned out the repeater was in Virginia, several hundred miles from my NE New Jersey location. That was my intro to Tropo Ducting.

Scan through the weather band early in the morning or in the evening/night - if you hear WX stations for distant towns or states, it's due to ducting. Tropo Ducting generally affects frequencies from 90MHz and up.

 

[richardbritt]

It's most likely the STARS site in South Hill Virginia. Not really that far from Greenville north of you