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Loggings => WEFAX and SSTV => Topic started by: TRI International on October 11, 2023, 2149 UTC

Title: DDH3 Germany 3855 / 3853.10 USB 2139 UTC 11 Oct 2023
Post by: TRI International on October 11, 2023, 2149 UTC

2139 - 2149 UTC DDH3 started transmitting

S - 9 via Vevelstad, Norway Web SDR

(https://imgur.com/76B9GYE.png)

Title: Re: DDH3 Germany 3855 / 3853.10 USB 2139 UTC 11 Oct 2023
Post by: tiNG on October 12, 2023, 1242 UTC

Hi.

CF is 3855,0 kHz (FAX = FSK).

Be aware that all FSK (FAX, RTTY, SITOR-A/-B, DSC, NAVTEX etc.) signals have a center frequency ALWAYS in the middle between high and low "tone" (Frequency). You may receive it in USB (with speciall offset) or CW (with correct BFO tune). But as it is a frequency modulated signal the CF is always between "mark" and "space" (low and high "tone" or frequenc).

Hope this helps. :)