Re: LF: Re. TA Last Night

[MarkusVester@aol.com]

Dear John and LF,

yes my grabber seems to be plagued a lot. Most of the QRN is currently emanating from the Mediterranan sea area. I believe the unilateral directivity of the K9AY E-H-loops does help a lot for Hartmurt and Jean-Pierre. However up to now my own attempts on H-field reception have always resulted in decreased SNR due to all sorts of local QRM.

The QRN was probably emphasized a little by the increased dynamic headroom which was required here to cope with the Budapest telegrams. Apparently these have also affected the software noise blanker performance, which I have tried to improve now by inserting a bandpass filter before the trigger.

Judging by the fat CFH trace last night, LF propagation looks quite favorable in the aftermath of the recent period of geomagnetic activity. On the 100 kHz monitor, all stations from the the Far East Loran chains (including Minami Torishima island) were well visible this evening.

73 and best wishes
de Markus, DF6NM

w1tag@w1tag.com wrote:
 
> Laurie,
>
> I was looking at the various Grabbers in the 0100-0200 period, and 
> Jean-Pierre, F1AFJ, had clearly visible signals while Dave Pick's screen 
> only showed one or two (Loran) lines. The DF6NM screens have been buried 
> in noise on most nights lately, so that's all I had for comparison from 
> across the pond. Perhaps there was a storm that was affecting your copy 
> (and Dave's) more than the others on the continent.
>
> John A.