Re: LF: XDV QRSS60 137k

["mal hamilton" <g3kevmal@talktalk.net>]

Markus

I agree with your point of view especially if some stations are churning out Beacon mode and not listening.

Qso mode is different where the frequency is being monitored all the time for acty and evasive action can be taken if qrm becomes a problem.

For those in Beacon mode stick to 136.320 E to W and 137.777 W to E also TA qso's use this procedure. This has worked well in the past.

73 de mal/g3kev

 

----- Original Message -----

From: Markus Vester

To: rsgb_lf_group@blacksheep.org

Sent: Sunday, November 14, 2010 10:30 AM

Subject: Re: LF: XDV QRSS60 137k

Dear LF,

 

again, I would very much favour to stay with the separation of transatlantic slots, ie. around 137.777 kHz for West-to-East and around 136.320 for East-to-West.

 

On LF, the problem is not only related to a lack of dynamic range in the receiver backend. Here in Central Europe, DCF39 keying sidebands spill out a lot of in-band energy, which can only be effectively removed by blanking. These periodic cutouts then modulate onto all in-band signals, creating a set of nasty 0.1 Hz spaced sidelines around strong (but otherwise clean) amateur signals.

 

Kind regards,

Markus 

 

 

From: Hartmut Wolff

Sent: Saturday, November 13, 2010 10:52 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: XDV QRSS60 137k

In the past EU QRSS beacons were transmitting in the 137.32 range. Did this changed? I think I missed something.

--
73
Hartmut
www.h-wolff.de
Locator: JO52hp