Shortwave Oddity, Letter Beacon, ENIGMA ID MX, Morse code F, 4558.2 kHz, 11 October, 2021, 1336 UTC

Russian military propagation beacon "F". These Single Letter Beacons were assigned the ENIGMA ID of "MX", this specific example is of the F beacon, sending the letter "F" in Morse code. This transmission is believed to serve as a propagation beacon. These stations are sometimes grouped and discussed with Numbers Stations, however they are not Numbers Stations, they are military oddities.
This M beacon is on the frequency of 4558.2 kHz. This beacon transmits on the frequencies of 3594.2 kHz, 4558.2 kHz, 5154.2 kHz, 7039.2 kHz, 8495.2 kHz, 10872.2 kHz, 13528.2 kHz, 16332.2 kHz, and 20048.2 kHz.
Recorded at my location in the Mohave Desert of California, USA, on 11 October, 2021, at about 1336 UTC.
Disclaimer: Many of the radio reception recordings on this KZbin channel pertain to unusual, uncommon, unknown, or mystery signals that might be found on radio, both shortwave and VHF/UHF. Among the subjects covered are numbers stations, utility stations, military transmissions (both in the clear and encrypted / encoded), aviation, maritime, ham radio, CB radio, radars, ionosodes, propagation beacons, ditters, dashers, whistlers, and just about anything else that might transmit, in any mode, USB, LSB, CW, Morse Code, FM, AM,FMCW, LFMCW, etc. Think of it as SIGINT (signals intelligence) / COMINT (communications intelligence) / ELINT (electronic intelligence) lite, the hobby version. All the recordings are made by me, most often at my home. Although there are a few mysterious things to be found here, you will not find anything paranormal, extraterrestrial, spiritual, or mystic. However, everyone can have their own interpretations of the sounds heard, make of it what you will.

[@MilMike]

I find this fascinating. Imagine you find something interesting from space. Not just noise but something similar to this video. 👽

[@John-wd5cb]

Aliens 👽

[@noteswiper.archives]

hiya

[@JeffCowan]

Any substantial differences from the other "F" beacons you have reported lately?

[@FirstToken]

Only in frequency. Note that all 6 of the beacons I uploaded this weekend were on different freqs. Boring, I know, but I have uploaded all these SLBs this weekend, on different frequencies, to act as reference material so I can update the Wikipedia page on Letter Beacons. The Wikipedia page is incomplete and minus several frequencies for these beacons. Previously, I had updated the Wiki to include the missing frequencies, only to have moderators delete my updates as having no source of reference.

[@JeffCowan]

@@FirstToken Fine business!

[@MDK2_Radio]

@@FirstTokenprobably make the the HFU wiki is updated on that at least.