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LF: EbNaut

from [jrusgrove@comcast.net] [Permanent Link][Original]
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Subject: LF: EbNaut
From: "jrusgrove@comcast.net" <jrusgrove@comcast.net>
Date: Sat, 19 Jan 2019 06:30:56 -0500
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Alex, Riccardo & EbNaut-eers
 
Unfortunately no copy of either station last night. Alex ... understand your TX frequency may have been moving around.
 
I wonder if a 1 hour transmission is too long for 137 kHz? Recalling spectrograms of QRSS going back many years seems to indicate a QSB pattern of approximately 15 - 30 minutes. Both receptions of IZ7SLZ and IW4DXW (a while back) were 'one and done' with no hint of the signal in adjacent time slots ... using 30 minute transmission times. Even DK7FC's normally big signal shows big QSB swings from one half hour period to the next. Can't help but wonder if 20 or 30 minute transmission periods make better use of the QSB characteristics on 136 kHz.
 
Comments?
 
Jay W1VD      
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