163.3375 blm / nps?

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AlphaFive

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In Asheville, sitting on 163.3375 026 DPL. I have no previous log of this frequency. No R.R. record of it's use in North Carolina. I am going to have to go with a National Park use at this point, the transmitting unit was running a registration check of a N.C. tag. Don't know that BLM does that too often. Anyone logged this with the 026 DPL signature??
 

AlphaFive

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inverted DCS

I have considered an I.F. issue, the inverted DCS would be 464 DPL. I can't locate that in any of my logs looking in the spots for usual I.F. suspects..
 

ecps92

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Depending on the make/model it could be an image from the lower VHF or even UHF
Hell even 800/900 as I had one scanner that would pick up 900 TRS in the 173 Band

There have been unid P25 transmissions from Central NC with $210
maybe that agency went Analog ?

Search with a 2nd Radio next time you hear it, going 1 Mhz at a time.
it might take a few trys.

I do see 464 DPL in the RR DB
https://www.radioreference.com/apps/db/?ctid=1897

Could the Dispatcher been keying up on multiple channels when replying to the Officer ??
The other option is use a different make/model radio to rule out, that it might not be an image... I've used my Yaesu to do this in the past for RX
In Asheville, sitting on 163.3375 026 DPL. I have no previous log of this frequency. No R.R. record of it's use in North Carolina. I am going to have to go with a National Park use at this point, the transmitting unit was running a registration check of a N.C. tag. Don't know that BLM does that too often. Anyone logged this with the 026 DPL signature??
 

KB7MIB

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For what it's worth, before they went encrypted, I have heard BLM Law Enforcement rangers running drivers licenses and license plate checks here in Arizona.

John
Peoria, AZ
 

AlphaFive

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BLM / NPS

Thank you both for your reply.. I kept my 536 on the 163 frequency, and set my TRX 2 on suspect frequencies. Unfortunately everything went silent, no more activity. I am going to set it up again today. Take care

I found the 464 DPL you were referring to, certainly in the correct spot for matching previous I.F. problems I encountered. But, I know this freq. they are an active F.D. If we have F.D. running vehicle registrations, Buncombe County has bigger problems than me not being able to identify a Federal Freq., haaaaaaaaaaaaa.. Thanks again, your help is appreciated.
 
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AlphaFive

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NPS

Interesting catch on that,, I'm looking at the California listing, the spacing set on that has it as the input for 171.7000. I don't have any hits on 171.7000 here. The closest thing I could find is in Virginia. Definitely something I will work on. Never thought to look at it as the input,...
 

ecps92

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What he is saying is, it is the input to one of these Repeaters
Blue Ridge Parkway - The RadioReference Wiki
Interesting catch on that,, I'm looking at the California listing, the spacing set on that has it as the input for 171.7000. I don't have any hits on 171.7000 here. The closest thing I could find is in Virginia. Definitely something I will work on. Never thought to look at it as the input,...
 

AlphaFive

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NPS

Thanks for that,,, I have Cowee Bald, but only as the NAC 110. This helps clear everything up. I will try matching up the two today so I can confirm this. You All have a great day..
 

spacellamaman

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Depending on the make/model it could be an image from the lower VHF or even UHF
Hell even 800/900 as I had one scanner that would pick up 900 TRS in the 173 Band

i haven't had a image spread quite that far before, but certainly close. i have found for some reason the 160's and 170's seem to be areas prone for issues for me.

There have been unid P25 transmissions from Central NC with $210
maybe that agency went Analog ?

hence why i saw this and said "oohhhh reaaallllyyy"

The other option is use a different make/model radio to rule out, that it might not be an image... I've used my Yaesu to do this in the past for RX

i have come to a point where i almost always use two different manufacturers at the same time, if possible, before i consider something confirmed to my satisfaction.

i have a pro-668 that has many good points, but will allow nearly anything through and indicate that "387.4500 PL 67.0? Talking about taking trash to a dumpster? oh yeah man don't worry thats correct. i am a pro-668. i know whats up" turn on a uniden and it says "he's lying. like always. lying man. he'll spew anything out. not me"

the thing that makes me lean most towards it being an image or something along those lines is A: use of DPL/DCS and B: routine nature of traffic

I just really dont see much DPL in use in general, but even then mainly UHF business. only one federal user have i run into using DPL that wasn't Ranger/Forestry/Natural resources related and they have since gone DMR.

the fact that its gone silent though, kills off my image thoughts and makes me think you may have had a "good reception period" as i call them which occur from time to time for me. Shaw AFB trunked system in the 160's i receive periodically from central nc, as well as some Fort jackson in SC that is in the 380's. i never, ever recieve anything further out than that, distance wise, in any direction, but get it frequently enough that it seems that is just outside of the fringe area receivable if one is trying really hard.

so i would think, figure out how far out is the most distant thing you recieve on a regular basis, with low to medium effort and then add 30% +/- distance-wise, and start checking to see whats reported that might match.

or not

but if you catch a $210, holla
 

BigLebowski

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i haven't had a image spread quite that far before, but certainly close. i have found for some reason the 160's and 170's seem to be areas prone for issues for me.



hence why i saw this and said "oohhhh reaaallllyyy"



i have come to a point where i almost always use two different manufacturers at the same time, if possible, before i consider something confirmed to my satisfaction.

i have a pro-668 that has many good points, but will allow nearly anything through and indicate that "387.4500 PL 67.0? Talking about taking trash to a dumpster? oh yeah man don't worry thats correct. i am a pro-668. i know whats up" turn on a uniden and it says "he's lying. like always. lying man. he'll spew anything out. not me"

the thing that makes me lean most towards it being an image or something along those lines is A: use of DPL/DCS and B: routine nature of traffic

I just really dont see much DPL in use in general, but even then mainly UHF business. only one federal user have i run into using DPL that wasn't Ranger/Forestry/Natural resources related and they have since gone DMR.

the fact that its gone silent though, kills off my image thoughts and makes me think you may have had a "good reception period" as i call them which occur from time to time for me. Shaw AFB trunked system in the 160's i receive periodically from central nc, as well as some Fort jackson in SC that is in the 380's. i never, ever recieve anything further out than that, distance wise, in any direction, but get it frequently enough that it seems that is just outside of the fringe area receivable if one is trying really hard.

so i would think, figure out how far out is the most distant thing you recieve on a regular basis, with low to medium effort and then add 30% +/- distance-wise, and start checking to see whats reported that might match.

or not

but if you catch a $210, holla

The frequency/DPL is, for a fact, the input to one of the parkway repeaters.... so is the same frequency with a 210 NAC. Input to a different repeater when in P25 mode.
 

BigLebowski

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Piedmont NC
I can't speak for the Blue Ridge Parkway repeaters down in North Carolina.

But up in my area (Central Virginia), the input I see in use for the BRP P-25 repeaters is: 166.08750 MHz.

166.0875 is the other input. Both inputs are used at various sites in both NC and VA with various DPL's/NAC's.
 
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