1263.5250 non amateur

[AlphaFive]

The N.T.I.A has the use slot for 1263.5250 as Fed Space Operations & Radio Location. Yesterday my Pro 197 landed on 1263.5250 and I heard a unit call out his i.d. number "to headquarters". The transmission registered as P 25 with an NAC. The S bar was full. I paused the limit search, but nothing more. I don't have logging hooked up to my 197, so I missed the NAC.
Due to the P 25 indicator I am going with the assumption that this was not 23 C.M. amateur band. I am also familiar with the sound and look of an I.F. mirror problem, this didn't look like anything I have ever come across that high up. I would add I have never experienced an I.F. problem up there.
Since yesterday I have not been able to locate any information online regarding a Fed use of this band. Although the hit was short with little information, does this activity sound familiar to anyone? It was certainly interesting..........

 

[ka3jjz]

Just a side note - P25 is used in the amateur service, but the lack of a callsign on the calling party says it's not a ham.

Mike

 

[AlphaFive]

P 25

Hmm, that's interesting ref the P 25, didn't know that, and I do appreciate it. And yes, if this wasn't a mirror, the person transmitting was not a Ham..Thanks

 

[wbloss]

The N.T.I.A has the use slot for 1263.5250 as Fed Space Operations & Radio Location. Yesterday my Pro 197 landed on 1263.5250 and I heard a unit call out his i.d. number "to headquarters". The transmission registered as P 25 with an NAC. The S bar was full. I paused the limit search, but nothing more. I don't have logging hooked up to my 197, so I missed the NAC.
Due to the P 25 indicator I am going with the assumption that this was not 23 C.M. amateur band. I am also familiar with the sound and look of an I.F. mirror problem, this didn't look like anything I have ever come across that high up. I would add I have never experienced an I.F. problem up there.
Since yesterday I have not been able to locate any information online regarding a Fed use of this band. Although the hit was short with little information, does this activity sound familiar to anyone? It was certainly interesting..........

Fascinating. Not arguing, but where did you get the NTIA info?
W

 

[nd5y]

It's probably an image or intermod. I don't know of any manufacturer that makes P25 equipment for 1.2 GHz.

OP probably got the info from the NTIA Redbook or one of the charts or tables linked to at https://wiki.radioreference.com/index.php/Radio_Spectrum_Management_and_Allocations

 

[AlphaFive]

1263

Good morning, it's the January 2016 Spectrum Allocation chart. NTIA.DOC.GOV, or just Google search NTIA January 2016 frequency spectrum chart, however you get there. I like it

 

[mtindor]

Just a side note - P25 is used in the amateur service, but the lack of a callsign on the calling party says it's not a ham.

Mike

No, no ham would ever omit their callsign If I was operating on 1.2 Ghz [as a ham], the last thing i'd really concern myself with is IDing. Sure, somebody could be listening, but highly doubtful heh.

mike

 

[nd5y]

No, no ham would ever omit their callsign

Yes they do. I have heard it several times.

 

[mtindor]

Yes they do. I have heard it several times.

There was sarcasm in that there comment of mine!

Mike

 

[ecps92]

+1 Vote for Image or Intermod

It's probably an image or intermod. I don't know of any manufacturer that makes P25 equipment for 1.2 GHz.

OP probably got the info from the NTIA Redbook or one of the charts or tables linked to at https://wiki.radioreference.com/index.php/Radio_Spectrum_Management_and_Allocations

 

[AlphaFive]

1263

And........ based on the consensus, the OP declares that the hit was an I.F. issue, higama thigama jigama. Does not get logged as a valid use. Thank you for your help, take care