919.000 Mhz close call hit

[Randyk4661]

While driving on PCH (between Beach Blvd. & First St.) in Huntington Beach I got a close call hit on the frequency listed above.
It was a straight analog carrier only, no voice or data heard.
As I drove away from the area the signal dropped off so not an IF problem. I returned a few hours later and did not get another hit.


A search of the frequency came up with cable TV usage?
What types of services use that frequency area?
Thanks, Randy

 

[tweiss3]

902-928 is a ham band, and there is a ton of ISM stuff that shares the band as well. You won't a license under any search. It could have been a repeater link.

 

[spongella]

At this QTH, NJ, pagers can be heard on this frequency.

 

[ecps92]

At this QTH, NJ, pagers can be heard on this frequency.

??? The US paging band is 929.0125 thru 929.9875

 

[ChrisP]

I think it might be a radio location system, like a toll tag reader or something similar. I get hits like that with those systems. The carrier on 919 causes the tag to re-radiate it's ID.

- Chris

 

[KevinC]

I think it might be a radio location system, like a toll tag reader or something similar. I get hits like that with those systems. The carrier on 919 causes the tag to re-radiate it's ID.

- Chris

A gated community near me triggers CC right at the entrance in the 900 ISM band, so I assumed a hands off entry system like you mention.

 

[ChrisP]

Just FYI, the frequency is considered by the FCC to be service type " LN", 902-928 MHz Location Narrowband. There are some licenses for these, but I think most are part 15, low power.

- Chris

 

[spongella]

??? The US paging band is 929.0125 thru 929.9875

Maybe my error, let me check. Thank you.

 

[nokones]

902-928 is a ham band, and there is a ton of ISM stuff that shares the band as well. You won't a license under any search. It could have been a repeater link.

The ISM stuff is digital. What time of day/night that this is happening? The reason why I ask, lately the receive freqs I have programmed for CSQ in my VHF Radio gets hit with noise when the Street lights are on. They were just replaced with the new LEDs.

I was curious to see what was the center freq so I got my spectrum analyzer out and it appears to center at about 2 meters. So, it appears that my new LED street lights are 2 Meter lights.

I believe they stop using/licensing 900 Meg control links back in the 90s.