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Markus
How accurate are the WWLLN frequency scales? In
particular does 18.5 fall on 18.5? Was sorry to see them go off yesterday
morning ;~( Was hoping to get a look at them during the
daytime.
Jay
----- Original Message -----
Sent: Thursday, April 20, 2006 6:54
PM
Subject: Re: LF: 18.5 kHz in CT
Hi José,
no, not really a cardioid. The
cardioid symbol appears in SpecLab's RDF scale because I sometimes use the
directional null function to mitigate green bands from a certain switched-mode
power supply. This one is much stronger on the loops than on the E-field
antenna, and I can minimize it by adding in a small portion of the H-field
channel in antiphase (H/E-weighting = 0.2). For far field reception, this does
create a small 20% asymmetry in the directional pattern.
Re the
original subject line: The test transmissions from DHO38 18.5 kHz ceased
yesterday morning 07:00. However some of the WWLLN spectrograms, mostly from
the pacific area, still show another FSK signal on that frequency. I couldn't
find this one in the station listings, does anyone know what it is?
73
and all the best
Markus
In einer eMail vom 20.04.2006 23:05:43
Westeuropäische Sommerzeit schreibt [email protected]:
Markus , does your Grabber have a cardiod receiving
pattern?
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