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DaveNF2G
Guest
Another Albany, NY, area mystery:
385.825 NAC 297 mention of police headquarters
385.825 NAC 297 mention of police headquarters
Post Your Mystery Frequencies
- Thread starter SOFA_KING
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ecps92
Member
Dave, could it be an image?
The only P25 in 385's I got was for Naval Vessels visiting Boston harbor. $297 is the NAC for the VHF VA Channel in Albany... more than one radio getting this ?
The only P25 in 385's I got was for Naval Vessels visiting Boston harbor. $297 is the NAC for the VHF VA Channel in Albany... more than one radio getting this ?
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DaveNF2G
Guest
It could be an image, but it could also be a real channel. The Watervliet Arsenal is P25 in the 380 MHz range.
ecps92
Member
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DaveNF2G
Guest
They are all listed on my website at nf2g.com
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DaveNF2G
Guest
This has proven to be a spurious emission from the Watervliet Arsenal's transmitter on 380.750 MHz.
SOFA_KING
Member
Spur or IF image?
Those can get ya. I always have to double check. NAC's can help you with these.
Phil
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DaveNF2G
Guest
Not an image. There is no 5.1 MHz IF in the scanner.
The NAC is exactly the same as the fundamental.
The NAC is exactly the same as the fundamental.
SOFA_KING
Member
Images are mixes and can show up anywhere...not just the sum/difference of the IF freq. I doubt you will hear a spur like that on any modern commercial gear. The specs are very tight these days.
Phil
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DaveNF2G
Guest
Given that the Arsenal is using 4 pairs, it seems odd that I would get an image on only 1 frequency, unless there is a defect in their transmitter on that 1 channel.
The "image" appears on every single transmission, with no other noises around it, so it's not a beat product, either.
The "image" appears on every single transmission, with no other noises around it, so it's not a beat product, either.
BigC801
Member
I have 2 more odd ones i have found.
173.1250 PL173.8 only thing i have found for this one is FBI in Puerto Rico with no tone.
173.4125 NAC 293
173.1250 PL173.8 only thing i have found for this one is FBI in Puerto Rico with no tone.
173.4125 NAC 293
ecps92
Member
Maybe it's beat'n with another frequency.
ie: The Same reason why I get the NOAA on 154.1900 when certain Paging Frequencies key-up. And I'm 15 Miles from the NWS Site at that point, yet the NWS Transmitter audio is stronger than the Paging Signal in the back-ground. Isn't Scanning Fun !
ie: The Same reason why I get the NOAA on 154.1900 when certain Paging Frequencies key-up. And I'm 15 Miles from the NWS Site at that point, yet the NWS Transmitter audio is stronger than the Paging Signal in the back-ground. Isn't Scanning Fun !
SOFA_KING
Member
New Old One
OK...I have a new one that is far away (not urgent), but I finally got a NAC lock on it after hearing weak P25 on it for years.
171.7750 NAC $61F and in the past some fire dispatch traffic with PL 156.7.
These may be two different systems from two areas. I'm more interested in the P25 traffic, but it was too weak to decode audio.
Phil
OK...I have a new one that is far away (not urgent), but I finally got a NAC lock on it after hearing weak P25 on it for years.
171.7750 NAC $61F and in the past some fire dispatch traffic with PL 156.7.
These may be two different systems from two areas. I'm more interested in the P25 traffic, but it was too weak to decode audio.
Phil
172.400, NAC $4CE Clear Digital. Probably coming from Newark, NJ area or NYC.
SOFA_KING
Member
OK, I heard a bit of a mystery yesterday. I scan all of the ICE freqs that I have ever identified around S FL and up till now everything was analog. My scanner starts popping on 163.7000 NAC 293 with mobile traffic (in the clear) that eventually lands in my home town. Years ago, and maybe still, this was an INS/BP repeater freq used in Ft. Lauderdale, and it was used for anti-smuggling operations. So, the question is has BP in S FL started converting to P25?
Phil
And yesterday I heard hours of mobile traffic on 163.7750 NAC $293 ITC. This is my local analog repeater / direct frequency.
It looks official. S. FL BP is on it's way to converting to P25. No base/rptr P25 traffic yet, but it looks like the mobiles have gone. Can't be too far off. I wonder if they will shift repeater frequencies.
Phil
BigC801
Member
Has anyone ever seen the NAC code show up as FFF, i have logged several the last few weeks that show that as a NAC.
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ecps92
Member
If "N" is the prefix for NAC similar to those of us who use "$" then yes
it could be. FFF would be the last possible NAC Available 0-9, A-F
What Frequencies/Systems are you seeing this on.
it could be. FFF would be the last possible NAC Available 0-9, A-F
What Frequencies/Systems are you seeing this on.
BigC801
Member
You are right i forgot to take the N off, its FFF, so far i have logged them on,
164.0625
164.6500
164.6625
In kansas city missouri.
164.0625
164.6500
164.6625
In kansas city missouri.
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Have you actually heard voice audio on these? If not, I'd suggest it's possibly an errored reading.
A NAC of $FFF is possible. I can program it in to my equipment.
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