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LF: Rugby Loran-C levels

To: "LF-Group" <[email protected]>
Subject: LF: Rugby Loran-C levels
From: "Alan Melia" <[email protected]>
Date: Thu, 23 Jun 2005 12:09:22 +0100
Delivery-date: Thu, 23 Jun 2005 12:10:45 +0100
Envelope-to: [email protected]
Reply-to: [email protected]
Sender: [email protected]
Hi all, CFH was active last night, but due to the solstice there is a fairly
narrow "window". I have not calibrated the receiver for some time and this
needs a check, but there is a distinct jump in the average noise level at
about 0700z, well after CFH faded out,  which would seem to tally with
Laurie's plot of the lines appearing. I am surprised that the effect is so
small, but it may indicate that my local noises have increased substantially
over the last 2 years or so. The rx IF output (455kHz) is measured on a B&K
wideband millivoltmeter set to "average". The bandwidth of the IF filter is
The plot is posted to my propagation report page at

Cheers de Alan G3NYK

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