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Date: Fri, 11 Dec 2009 23:27:02 +0000 (GMT)
From: ALAN MELIA <alan.melia@btinternet.com>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Intercontinental LF waterholes
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Hi all, I think Markus idea is a good start but we have always made it the=
 case that we do not have hard and fast rules on LF because the frequency=
 of operation epends so much on local conditions and it is no good anyone=
 laying down a marker that suits his location but doesnt fit with others.

As I said Markus comment is a good guide. However.........   Gerhard raise=
s the point of using grabbers in your own continent for tests. This is goo=
d and usefull to do....I have done it myself. All that you require is to=
 think about the long distance propagation and time your tests appropriate=
ly. For instance US and Canadian stations will not really start to appear=
 until about their ground sunset (well ok, on very good days maybe a littl=
e before that) So you could safely do "local" (same continent) tests betwe=
en your sunset and the East Coast US sunset time. They probably wont take=
 too long and then it is unlikely you will interfere with anyone trying.=
 For a TA contact. Of course you "could" do the test in daytime!! This wou=
ld actually be more reliable, particularly at present, when the daytime pa=
ths are very consistant. You obviously need a grabber in daytime range. Th=
e old geoclock is an invaluable guide though I am sure there are other now=
.

Just remember you are very strong at night in your own continent, and try=
 to stay out of the immediate areas where DX signal may be coming in.

We are hardly wall to wall QRM on LF and MF yet so enjoy it.

Alan G3NYK