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Re: [IRCA] 1181 viewed from Scotland
- Subject: Re: [IRCA] 1181 viewed from Scotland
- From: Paul Crankshaw <paulc@xxxxxxxxxxx>
- Date: Thu, 23 Aug 2007 09:00:04 +0100
As promised, I checked for the emergence of the 1181 signal on SpecLab
last night
Here is the plot: http://paulc.mediumwaveradio.org/images/11814.jpg
Times are BST (deduct 1 hour for UTC).
The random yellow dots show that no signal is being received. The first
evidence of a signal is at around 2250 UTC and the signal is established
at 2305 UTC. The emergence of the signal is consistent with the previous
nights observations
This map shows the greyline at 2300 UTC:
http://paulc.mediumwaveradio.org/images/sunset.jpg
Sunset is just reaching Santo Domingo in the Dominican Republic at this
time.
I note that the two directional plots on Glenn's chart
http://tonnesoftware.com/1180B.gif point rather more towards the
Dominican Republic than they do towards Cuba.
Paul
Troon, Scotland
Paul Crankshaw wrote:
>I used SpecLab to examine the signal on 1181 overnight here.
>
>Signal strength trace:
>http://paulc.mediumwaveradio.org/images/11811.jpg (The frequency trace
>is, I suspect 2 Hz too high - I didn't have time to calibrate for MW and
>I was using my LW setting)
>
>The time axis shows local time (deduct 1 hour for UTC)
>
>I switched on just after midnight local time (2300 UTC) by which time
>the signal was just beginning to build. It eventually faded at 0715 UTC
>(sunrise here was 0502 UTC so the signal lasted a full two hours after
>sunrise here.
>
>With the signal appearing at around 2300 UTC (I'll check again tonight
>to see exactly when) this is about 30 minutes before sunset in Santiago
>de Cuba and almost an hour before sunset in Havana..
>
>Paul
>Scotland
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