We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Author Topic: 1680 kHz UK and Europe. Stanag or other mode?  (Read 600 times)

Offline Ed H

  • Full Member
  • ***
  • Posts: 131
    • View Profile
1680 kHz UK and Europe. Stanag or other mode?
« on: March 30, 2022, 2218 UTC »
Hi Folks,

While visiting the UK, I was doing a little listening in the Marine MF band above 1600 kHz. Superimposed on the Floro (Norway) station USB weather reports on 1680 kHz was a systematic buzzing, audible after dark only.

Checking Sigidwiki for comparson of the audio suggested that this may be a Stanag variant of some kind similar in sound to Stanag 4285 , but I can't swear it is identical. Almost any SDR based in the UK or Northern Europe seems to pick it up.   https://www.sigidwiki.com/wiki/STANAG_4285

Can anyone shed more light here? Extensive searching has turned up nothing at all.




HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns