HFU HF Underground

Loggings => Utility => Topic started by: 2blackswan2 on February 25, 2024, 1815 UTC

Title: Unid 10345 khz
Post by: 2blackswan2 on February 25, 2024, 1815 UTC

Hi everyone,
I receive a digital signal every 30 minutes
What can it be?
Thank you
https://voca.ro/18JPXwC5ontj

Title: Re: Unid 10345 khz
Post by: N2MLP on February 25, 2024, 1913 UTC

1900 UTC
Watching  that freq  so far nothing seen

Title: Re: Unid 10345 khz
Post by: 2blackswan2 on February 25, 2024, 1942 UTC

at minute 28 and 58 of each hour

Title: Re: UK DHFCS 10345 USB ALE 1815 UTC 25 FEB 2024
Post by: ~SIGINT~ on February 25, 2024, 2154 UTC

The signal you are receiving is ALE (Automatic Link Establishment). The stations perform regular "soundings" on pre-assigned net frequencies in order to maintain a link quality analysis and determine the best operating HF frequency.

[00:00:00][FRQ 10345000][SND][               ][TWS][XSS            ][AL0] BER 24 SN 06
[00:00:00][FRQ 10345000][SND][               ][TWS][XSS            ][AL0] BER 21 SN 06
[00:00:00][FRQ 10345000][SND][               ][TWS][XSS            ][AL0] BER 16 SN 05

I have 10345.0 kHz registered to the Saudi Arabian Air Force Airfields Net but the call sign in the transmission is XSS which is the UK Defence HF Communications System. XSS, Forest Moor, is net control.

Note: Be nice to include the location you are receiving from.

~SIGINT~

Title: Re: Unid 10345 khz
Post by: 2blackswan2 on February 26, 2024, 0716 UTC

Many thanks for the information
My QTH is Rome Italy
'73

Title: Re: Unid 10345 khz
Post by: ~SIGINT~ on February 26, 2024, 1547 UTC

Thanks for the location. That lines up well with XSS in the UK.

If you go to your "Account Profile" and select "Modify -> Forum Profile" you can enter your Location: there and any other information you want to be automatically displayed.

Welcome to the HFU and happy monitoring.