Also, KFI can be heard
at noon in the SF Bay Area on ground wave, but the same
cannot be said of KGO in the LA area. I would concede that
KGO seems to have the superior ground wave signal across
the bay on the peninsula vs other SF bay area stations.
Rick N6RK
Over the years, transmitted
Vertical on a beach DXpeditions have a very different mindset about
choosing operating hours and greyline openings, than other kinds of
DXpeditions.
Often they are also away from the RFI sources that are increasingly present
even off the mainland.
It should not be surprising that, over and above
- Original Message -
From: k1fz k...@myfairpoint.net
To: topband topband@contesting.com
Sent: Thursday, August 14, 2014 8:33 AM
Subject: Topband: Fw: Modeling the proverbial vertical on a beach
Also, KFI can be heard
at noon in the SF Bay Area on ground wave, but the same
cannot
All,I am not very educated in these matters so I have nothing specific to add
other than this: 1-We have some really bright friends who share the love of
this exciting Hobby. And a true friend will freely share his perceptions,
whether popular or not.2-Our individual perceptions differ almost
Finding many references to the 2009 Chesterfield TX3A ability to hear well, I
decided to check it out. Found a very interesting write up by AA7JV.
It was definitely a beach front operation. A great read !
http://www.tx3a.com/documents/TX3Astory.pdf
73
Bruce-K1FZ
_
Topband
Great write-up!
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of k1fz
Sent: Thursday, August 14, 2014 2:14 PM
To: topband@contesting.com
Subject: Topband: 2009 TX3A- Double half delta loop
Finding many references to the 2009
On 8/13/2014 6:28 PM, Tom W8JI wrote:
But skimmer, which displays a relative level, does not show the level
difference.
Skimmer shows about the same peak levels, but the stations closer or
over salt water paths (not localized salt water) have longer openings
but no more level for peak
I looked at comparative data from four or five contests.
I'm too far out of the path and in distance (approaching 1000 miles
different) to compare, but I was still interested in how others in the NE
compared.
If it was really 10-20 dB, shore locations would stand out like a sore thumb
For Skimmer comparisons signals have to be on the air at the same time and
the transmitting stations not to far apart from each other.
In that case there is no statistical noise.
But I would not expect the here claimed 20db difference.
73
Peter
-Original Message-
From: Topband
FWIW, here's a site where someone apparently did some tests. Someone posted
it on eHam the other day in a similar discussion.
http://www.k2kw.com/verticals/verticalinfo.htm
73, Mike
www.w0btu.com
_
Topband Reflector Archives - http://www.contesting.com/_topband
Alex,
I much imagine a similar statement was uttered many years ago when the first
use of AM transmitters came into use and probably again when SSB came into use.
Its not that it is better simply different and allows users to expand
their avenues of experiencing ham radio. I can
In addition to my prior long term creep tests for loads to 11,000#, I've
concluded a tension test to failure of the Crosby Spelter socket
terminations for the older parallel strand Phillystran in 5/8 OD size
and using West Marine 105 epoxy as the potting compound. I was unable
to source the
Amen!!
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim
Sent: Thursday, August 14, 2014 8:46 PM
To: topband@contesting.com
Subject: Topband: JT65/JT9 MODES
Alex,
I much imagine a similar statement was uttered many years
I wonder if they had read the report mentioned by Chuck Hutton a few days ago:
http://downloads.bbc.co.uk/rd/pubs/reports/1968-45.pdf
It would seem to shed some light on what they observed.
There are other, more theoretical, papers of similar vintage that
address the issue for those who want
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