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Loggings => Longwave Loggings => Topic started by: Matt_B on November 08, 2017, 0850 UTC

Title: Mystery Signal On 410.99 khz
Post by: Matt_B on November 08, 2017, 0850 UTC

Anyone know what the heck this is? Series of beeps....sounds like it could be morse code, but IDK. 

Title: Re: Mystery Signal On 410.99 khz
Post by: Rob. on November 08, 2017, 1359 UTC

It is likely a Non Directional Beacon (NDB): https://en.wikipedia.org/wiki/Non-directional_beacon  You can search to see what it might be here: http://www.airnav.com/navaids/

If you can figure out what letters are being sent in Morse code that would help with identifying which one you are hearing.

Title: Re: Mystery Signal On 410.99 khz
Post by: jFarley on November 08, 2017, 1719 UTC

Hi Matt;

My guess is that you were hearing the lower sidband of the NDB CTZ in Clinton, NC.  Its carrier is on 412 kHz, and I measured the LSB as being on 410.993 last night.

Title: Re: Mystery Signal On 410.99 khz
Post by: Matt_B on November 08, 2017, 1857 UTC

Quote from: jFarley on November 08, 2017, 1719 UTC

Hi Matt;

My guess is that you were hearing the lower sidband of the NDB CTZ in Clinton, NC.  Its carrier is on 412 kHz, and I measured the LSB as being on 410.993 last night.

Ah.  Looks like that might've been what it was.  Thanks for the ID! :)