HFU HF Underground

Loggings => Shortwave Broadcast => Topic started by: Sky on March 07, 2022, 0509 UTC

Title: Granville 11.175 MHz USB Phonetic Letters Broadcasting Now.
Post by: Sky on March 07, 2022, 0509 UTC

Does anyone know what this broadcast is about.  Currently 11.175 MHz USB at 0508 UTC 3/6/22.  They announce "This is Granville, Standby" then they read off letters using the phonetic alphabet.  Also "This is Granville, more to follow."  First it was an older male voice, now it is a younger female voice.

Title: Re: Granville 11.175 MHz USB Phonetic Letters Broadcasting Now.
Post by: Sky on March 07, 2022, 0514 UTC

Gone now "This is Granville, out" at about 0510 UTC.  The announcers had American accents.

Title: Re: Granville 11.175 MHz USB Phonetic Letters Broadcasting Now.
Post by: Sky on March 07, 2022, 0520 UTC

I guess this is the USAF High Frequency Global Communications System.   Perhaps some sort of emergency action message (EAM).  Perhaps from Granville, OH?

Title: Re: Granville 11175 USB 0509 UTC 07 MAR 2022
Post by: ~SIGINT~ on March 07, 2022, 0524 UTC

Correct on the HFGCS and FDM/EAM but the call sign is just the daily NCS call sign and will change every 24 hours at 00:00 ZULU. It has no relashionship to any location.

I have a running log located here that I started at the onset of the Ukranian conflict.

HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log
https://www.hfunderground.com/board/index.php/topic,93518.0.html (https://www.hfunderground.com/board/index.php/topic,93518.0.html)

Title: Re: Granville 11.175 MHz USB Phonetic Letters Broadcasting Now.
Post by: Sky on March 07, 2022, 0530 UTC

Thanks for the info.  I'll listen for this in the future.

Title: Re: Granville 11.175 MHz USB Phonetic Letters Broadcasting Now.
Post by: Paul B. Walker, Jr. on March 27, 2022, 2049 UTC

this comes from different places.. i heard an EAM on 11175 the other day it was so strong, it had to have come from JBER here in alaska