Re: LF: XNS, XGJ, XES, XKO

[Markus Vester <markusvester@aol.com>]

Please keep in mind that when viewing QRSS modulated signal on the narrowband display, we are only seeing the average voltage of the carrier component, depending on the keying duty cycle (eg. -6 dB for 50% weight). In terms of power, 50% is saved, 25% goes to the carrier, and 25% to the keying sidebande. For the somewhat "lighter" callsigns (XNS and XES DFCW dots), the difference is more like 8 to 10 dB, confirmed by their solid traces during earlier straight-carrier transmissions.

 

Best 73,

Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 11 Okt 2011 9:08 am
Betreff: LF: XNS, XGJ, XES, XKO

This morning, I was pleased to find good signals from XGJ and XKO in the "standard" 21 mHz TA window. There were also faint carrier traces from XNS and XES in the slow 0.438 mHz FFT.

 

Thanks for providing the signals!

 

Best 73,

Markus

 

(DF6NM in Nuernberg JN59NJ)

http://www.alice-dsl.net/df6nm/grabber/Grabber.htm

http://www.alice-dsl.net/df6nm/grabber/TAnarrow.jpg