----- Original Message -----
From: "Dave Pick" <[email protected]>
To: <[email protected]>
Sent: Monday, August 01, 2005 8:58 AM
Subject: LF: Coping with Loran
Dear all.
In the next Radcom LF column would like to do a piece about the effect of
Rugby Loran on UK stations.
How much interference is there at your QTH?
How are you coping with the QRM? Etc.
All info welcome at [email protected]
Thanks.
Dave G3YXM
Hi Dave.
Ref info that you require about the Rugby Loran.
Using my 80 metre loop opt direction East/West there is no trace of Loran
qrm.
Using my inv L vert system ie 4 inv L ants parallel each 120 ft vert and and
abt 400 ft horiz the qrm is severe and could be a problem even at this
distance, fortunately the LOOP nulls out this qrm completely and since most
acty of interest is from the E or W direction it is not a problem for me.
This loop is so good for rejection to the South that I often cannot see or
hear G stnn from this direction, especially the qrp acty in the South of
England. I have not done any serious measurements so far but a rough check
on 137 khz indicates loran qrm lines about 30 db over the ambient noise
floor here using the vert anternna.
Hope this helps and I can understand your concern at your QTH where it might
render the LF band impossible to use.
73 de Mal/G3KEV
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