[Lf] Re: re Loran lines
Andre' Kesteloot
akestelo at bellatlantic.net
Tue Jan 11 20:45:53 CST 2000
I 'll see what I can do around 136.747 +/- 1 Hz.
73
Andre'
Alan Melia wrote:
> Hi Andre'...yes it is quite a problem....fortunately they are not all spaced
> at 1Hz , but there are 6 lines between 136.740 and 137.760 from Cherbourg
> alone. Geri shows 10 lines from Slyt, but some are 'double'. They are very
> weak and very constant. At the moment it looks as though the only clear spot
> in that region is at 136.747+/- 1Hz on both sites. That is rather why I
> suggest that some long-period frequency steps may be better than trying to
> find a clear spot over here. I still think a 3Hz shift looks favourite as it
> should drop between the lines of one site or the other. (or maybe of sites
> we havent identified yet) The main lines seem to be 7 to 8Hz apart. The
> moving trace will be much easier to identify amongst all the steady Loran
> clutter, even if it does go under a line from time to time. This sort of QRM
> is going to limit the level of weak signal detection over here, and I guess
> you have plenty of your own big signals over there to contend with. It all
> just makes it a little more difficult and a little bit more worthwhile
> beating.
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