13.826

[Larry51]

I was playing around with my Airspy R2 and picked up active aviation traffic on 13.826. The Airspy was in AM mode, and the voice traffic was clear, giving altitude changes, ETAs, etc. I've checked my usual sources (RR, ARINC, Collins) and can't find that frequency listed anywhere. Can anyone help?

 

[mjf]

I was playing around with my Airspy R2 and picked up active aviation traffic on 13.826. The Airspy was in AM mode, and the voice traffic was clear, giving altitude changes, ETAs, etc. I've checked my usual sources (RR, ARINC, Collins) and can't find that frequency listed anywhere. Can anyone help?

HF aircraft communications are in USB, not AM. I wonder if it was an image coming from local transmissions in the aircraft band (118-137 MHz)? Are you close to an airport?

 

[MiCon]

I, personally, have never heard anything on that freq, but from a very, very old list I show that listed as a US Navy MARS frequency.

 

[Larry51]

Thank you both for the quick replies. I tuned my IC-R8600 to 13.826 and got nothing. I agree that what I'm hearing on the SDR is some sort of image. Thanks again.

Larry

 

[Larry51]

Mystery solved. What my AirSpy R2 was picking up on 13.826 MHz was actually aircraft using Washington Center's Whaleyville site on 133.825 MHz It handles high altitude arrival/departures from the U.S. The RCAG itself is about 20 miles from my house.

It's obviously an image, but I can't figure out what multiple the dongle used to come up with that image. When I tuned it to 133.825, the air traffic came in much stronger.

Anyway, I appreciate the help.

 

[KC1UA]

It should also be noted that an Airspy R2 doesn't have coverage that low in the frequency spectrum. Coverage begins at 24 MHz unless you are using it with a SpyVerter.

 

[Larry51]

I totally forgot that. No wonder I got false readings. Thanks KC1UA.

 

[GMB2711]

old mars freq