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Author Topic: 180 KHz Unknown digital  (Read 2149 times)

Offline rad10

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180 KHz Unknown digital
« on: March 11, 2024, 2322 UTC »
The last two nights (around 2300 UTC) I have heard some kind of multi-tone digital mode around 180KHz. Lengths of tones varies widely, with multi-second pauses at times. Loud in southwestern NY state. Anybody know what this is? I'm hearing it right now but I think it stopped around this time yesterday so it may stop soon.

Edit: Still receiving it as of 00:00 UTC 3/12/24
« Last Edit: March 12, 2024, 0001 UTC by rad10 »
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Location: Mid-Southern NY State.

Offline ThElectriCat

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Re: 180 KHz Unknown digital
« Reply #1 on: August 24, 2024, 1536 UTC »
Maybe a day late and a dollar short, But 180 is kind of a watering hole for the LOWFER band (160 to 190 kHz) used for unlicenced legal transmission. Theres a good chance you are hearing WSPR or WSJT modes and if they are loud, you are probably not far from the TX. 

Theres also a section of this message board for LOWFER, MEDFER, and HIFER beacons.  These are all extremely restricted in size and power (to be legal) but LOWFER is the most popular. 
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wj DMS 105A-2 with a 23 meter top hat antenna
wj 8718 with a 6900 kHz inverted vee
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