Picking up Morse code on my AM radio

[CrazyCalvinWilliams]

I have an Onkyo TX-4500 receiver I use for home theater and whatnot, and I scan the AM "waves" for oldies music, and if I set the tuner to the lowest frequency on the dial, I hear a morse code tone. On my digital radios, like my portable handhelds and Sony mini hifi, I can hear it on the lowest frequency as well. I am getting this signal in Grove City, Ohio. I took a YouTube recording of it. Any help on finding the source of these transmissions is greatly appreciated. Thanks!

Video:
https://www.youtube.com/watch?v=IyTqizuFzBE

 

[frazpo]

O S SOS? Is that what I am hearing?

 

[CrazyCalvinWilliams]

But who or what would be sending this?

 

[nd5y]

It is sending OS.
If you are near Columbus OH it is probably the Fuler NDB on 515 kHz. AirNav: Navaid information

 

[nextgenfm]

Are you sure you are not listening to longwave?

It is possible, what frequency are you on? It could be RF noise from an appliance

Just joined by the way! Hi everyone awesome forum!

 

[popnokick]

It's the "Fuller" NDB out of Columbus, Ohio sending Morse ID "OS". 515 kHz is of course right at the bottom of the AM broadcast band.

 

[CrazyCalvinWilliams]

So you're saying I'm listening to an airplane tracker?

 

[nd5y]

it doesn't track anyting. It's a NDB. It just sends a carrier with AM CW ID. Read this: https://en.wikipedia.org/wiki/Non-directional_beacon

 

[CrazyCalvinWilliams]

So airplanes/marine boats follow the signal?

 

[CrazyCalvinWilliams]

Can someone please give me the coordinates to this beacon so I can try to map it?

 

[nd5y]

So airplanes/marine boats follow the signal?

They don't follow it because it doesn't move. Airplanes have an ADF receiver that indicates the direction the signal is coming from relative to the direction the nose of the aircraft is pointing.

 

[krokus]

So airplanes/marine boats follow the signal?

There is a piece equipment on the plane that will tell you if the incoming signal is straight ahead, left or right. You fly, keeping the signal as appropriate.

Typically you choose an AM station or NDB near your target airfield, and fly straight towards it.

Sent via Tapatalk

 

[nd5y]

Can someone please give me the coordinates to this beacon so I can try to map it?

The coordinates are listed on the AirNav web page in post #4 above.

 

[CrazyCalvinWilliams]

thanks