CW code on Channel 3 in central eastern Minnesota

[walmslsj89]

Hi there, I'm new to the game.   In learning about GMRS, I've been scanning channels, etc hoping to hear talk.  One thing I picked up on is what appears to be CW Morse code: ' - - - . . . - - -  . . '  either O - S - O - I or O - S - 8, I believe.  It is on channel 3, 462.6125.    It's not toned but rather static toned and possible that the tone is not heard because perhaps I'm picking up something  pretty far away.   I't been going on repeatedly for at least 2-3 weeks.  Curious what you all think is causing this tone?   I'm located on the Wisconsin - Minnesota border in Stillwater, MN.  Thanks!

[ULTRA2]

Hi the frequency you posted is FRS (Family Radio Service) CH3 you may have picked up stray signal coming from the frequency. Please note that GMRS CH 18 and FRS CH3 is close to each other frequency wise CH 18 is 462.625 and as you posted FRS CH3 is 462.6125 as you can see the frequency is only 12.5khz away from each other. (PLEASE CORRECT IF WRONG)

[walmslsj89]

Hi thanks for reply.  Thanks for the correction:   yes FRS 3, 462.6125.  But I'm listening with 12.5khz bandwidth and I just checked 462.625 (FRS18 )with no signal emanating from that frequency nor on the other side (462.6125 - 12.5kHz).   Something seems to be cyclically transmitting the same sequence over about every 2.5 seconds on 462.6125 or nearby, not random voice.  

[ULTRA2]

You may also have picked up the repeater id tone for ch18

[ULTRA2]

Also it's GMRS CH 18

[WRAK968]

Well this has me a bit curious. Being the CW code is repeating, would it be possible to record the message for about 30 seconds or so and e-mail it to me? I can then try to decode the CW and see what exactly it says.

[Jones]

It could be the radio's IF and mixer picking up a shadow of a VLF beacon station.

 

Is the beacon transmitting R O S in Morse?   . - .   - - -   . . .

 

If so, that is the airport beacon at Rush City on 282 Khz.

[walmslsj89]

Thanks Jones, this is making more sense.   The noisy tones are '- - - . . . - - -  . . ', so at least there is what is an O and an S in there, but separation of audible tones might be muffled effecting my interpretation. On another note, SQL is maxed, and the tone is still coming through.   WRAK968: I'll grab a recording after I find the time to drive further out from my home toward ROS NDB to see if the ROS theory holds true. I pinged a pilot in the family to learn a little more about that side of things.

Best,

S.