Mostly an Asian morning, with lots of DU hints later. First time for
some good signals this season, however brief they may have been.
pretty darn good audio (all of it understandable by a native speaker,
at least briefly):
774 JOUB English lessons 1124UT
1566 HLAZ after hints of audio at 11
My local for once is off...
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At the risk of alienating many subscribers to the group if we go on
much longer with thisI suspect we all need to get together for an
EZNEC-chopping session Chuck. Neil and you have a lot of experience
with the program, and I'd really like to learn what you both do to
get the results you g
In general seemed slightly down from yesterday. Can't complain much
though, having DU audio 3 days in a row out here on the prairie.
702 Presumed 'Magic' from New Zealand with oldies at 1209, though not
as good as yesterday.
774 unID Very weak, but heard man talking at 1153, then what so
Neil:
We're talking different things. I'm trying to measure the width of the null
compared to the max null at 180, as written. You are comparing the null to the
peak in the forward direction.
Chuck
> Date: Fri, 21 Aug 2015 17:27:02 -0500
> From: neil...@earthlink.net
> To: irca@hard-core-dx.com
:Product: Geophysical Alert Message wwv.txt
:Issued: 2015 Aug 22 0010 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 21 August follow.
Solar flux 110 and estimated planetary A-index 6.
The esti
Chuck, please explain how you are measuring - 6 dB null width. The entire back
half of the antenna pattern is down at least 10 dB from beam peak with a DKAZ
when measured at a typical elevation angle of 15 deg.
73 KAZ
-Original Message-
>From: Chuck Hutton
>Sent: Aug 21, 2015 5:01 PM
>
Modelling numbers for a 20 x 140 DKAZ to back up what I said:- best null is
-42 dB and the -6 dB null width is 72 degrees.- lower the termination by 80
Ohms and the best null (straight off the back) is only -29 dB but the 6 dB null
width jumps up to 106 degrees.
Chuck
From: charle...@ms
This is a repeat of my earlier comment to Nick, where I guessed / thought that
the minima does not really move.
Ad I see it, the issue here is that the best null is the sharpest (narrowest)
null. If you want a null to cover something off to the side a bit, you can
indeed "mis-terminate" and get
So is the minima actually moving or is the rear-response beamwidth changing?
Or is that the same thing? And Nick: (especially in your 1640/1680
example), might there be some skywave in the mix? Makes an Old Novice
wonder...
KAZ YOUR THOUGHTS ??? ALSO...SEE LAST PARAGRAPH BELOW
Mark Durenb
:Product: Geophysical Alert Message wwv.txt
:Issued: 2015 Aug 21 1810 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 20 August follow.
Solar flux 103 and estimated planetary A-index 12.
The est
At 12:40 21-08-15, you wrote:
Nick: See CAPS below
Mark Durenberger
-Original Message- From: Nick Hall-Patch
I haven't had experience with two D-Kaz Mark, but do I gather then
that you haven't seen evidence of null steering with the DKaz
alone? I HAVEN'T SEEN EVIDENCE OF STEERING,
Listened from 1253-1320 ut. Local sunrise 1318 ut.
738 TAHITI, Mahina, Polynesie La Premiere 1253 very weak signal with music.
1309 weak signal with man in French. 08/21/2015
774 JAPAN, Akita, JOUB NHK2 1255 weak signal with English lessons. 08/21/2015
828 JAPAN, Osaka, JOBB NHK2 1257 weak
Nick: See CAPS below
Mark Durenberger
-Original Message-
From: Nick Hall-Patch
I haven't had experience with two D-Kaz Mark, but do I gather then that you
haven't seen evidence of null steering with the DKaz alone? I HAVEN'T SEEN
EVIDENCE OF STEERING, JUST DEPTH ADJUSTMENT (PRESUM
It was nice that they did go out and get some measurements for the
article. I have (large dollar figure) worth of computer equipment, an
internet enabled Blu-Ray player, etc., so I'm hardly a luddite, but I have
a hard time seeing significant advantages to the "internet of things"
except in rare c
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