----- Original Message -----
From: "James Moritz" <[email protected]>
To: <[email protected]>
Sent: Saturday, January 07, 2006 1:12 PM
Subject: LF: Re: Re: Re: TA 2 JAN 06
Dear Mal, LF Group,
Yes, that sounds like it. At your QTH, you are considerably further from
Rugby and Lessay than stations in SE England, so I would expect the noise
level to be considerably lower than it is here. Also, both stations are in
roughly the same direction, approximately south from you, so your loop
should do a pretty good job of nulling both Lorans. Here, the bearings
differ by about 100degrees, roughly NW and SW, so the more complicated
noise-cancelling system that I have mentioned before, that phases together
a
loop and a vertical to get two "steerable" nulls is needed. This is doing
quite a good job for stations in directions from 0 to 180 degrees from
here,
but of course gives a fair amount of cancellation of any wanted signals
arriving from the west.
Tnx Jim.
I can understand the problems some are having nearer RUGBY. If this
continues it might render 137 khz unworkable.
I also notice other HF bands are suffering qrm from pulse type
transmissions, perhaps the days of LF-HF are numbered and time to shift to
the VHF/UHF bands and Satellite communications.
73 de Mal/G3KEV
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