The patterns of the rowers seem odd if they use separate arrays.
Attached contour images.
AJ___ VE3HJ
On 1/6/23 18:44, Frank W3LPL wrote:
Hi George,
Faulty day/night switches may well be the cause! You may have seen
in my previous email that both stations switch patterns from day to night.
This is the first time I've ever hears of two AM stations with two
antenna arrays sharing the same small site
73
Frank
W3LPL
----- Original Message -----
From: "George Hirst"<geohirst@yahoo.com>
To: "Rick Stealey"<rickstealey@gmail.com>
Cc:wd8dsb@aol.com, "donovanf"<donovanf@starpower.net>
Sent: Friday, January 6, 2023 11:39:10 PM
Subject: Re: Spur as it reappeared
I am “talking through my hat” here. The fact that it seems to suddenly get much stronger right about
your (New Jersey) sunset make me wonder if it is related to the AM broadcast station(s) changing their antenna
pattern(s). (I haven’t done the research to know if these stations are ones that are required by the FCC to
change their patterns at night to “protect” more senior stations who share the sane frequency.)
Perhaps there is some corrosion on the RF switches employed in that function that introduces nonlinearities. Those
nonlinearities result in mixing products (ie. 1940 kHz) which are then radiated. ????
George - WF4U
On Jan 6, 2023, at 4:14 PM, Rick Stealey<rickstealey@gmail.com> wrote:
Note the waterfall. The timestamp on the right is accurate. The horizontal
line is a lightning burst. But notice the ugly signal that came up on 1940
before the carrier. Anyone have any idea what is happening there?
<image.png>
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Knowledge is Power and Power is Knowledge.___AJ___1967
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and I may learn. Involve me and I shall understand. ___AJ___
WKDM.jpg
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WWRU.jpg
Description: JPEG image
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