I make it about 125 to 130 degrees from Victoria, BC (local time
10:40am PDT, so, likely ground wave, but not strong). The AM
broadcaster on 1680 kHz nulls a few degrees further south.
This is using a tuned medium wave loop antenna, so it doesn't
resonate on 160m, and local noise tends to
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
Jameco continues to sell linear wall warts, if you want them new.
best wishes,
Nick
VE7DXR
At 05:26 24-10-14, you wrote:
On 10/23/2014 3:33 PM, JC wrote:
So watch out is you have Comcast cable modem, it is necessary to choke the
cable and the AC cord with FT240 # 31. With this fix ,the
The fact that the world outside the Americas has 9kHz rather than 10
kHz separation between broadcasters could help you here Jim. Not as
much help for South America, though there is an Argentinian on
1710kHz, but there are US pirates there also.
I believe Mark Connelly WA1ION is on this list,
Please see the articles on sea gain (from technical reports of the
BBC Engineering Department), referenced by Chuck Hutton, which I
believe addresses this very phenomenon.
73,
Nick
At 17:13 01-04-15, you wrote:
As I recall, the vertical signal strength to low angle DX went up
And if you look at US Patent 2,247,743, it
appears that Harold Beverage conceived of a horizontal Flag around 1941.
best wishes,
Nick
At 21:52 06-09-15, you wrote:
Bruce wrote on Sept 6. Snip < Check it out
http://www.qsl.net/k4fk/presentations/WF-receiver-antennas-SFDXAs.pdf
> Bruce, ref
Hi Bruce,
Does the QSB vary regularly at say a 0.5Hz or 1Hz rate? Could it be
another station on the channel that is not exactly the same
frequency, not strong enough to deliver audio, but strong enough to
create a sub-audible beat note?
If it is irregular, shouldn't the traditional
e.
> Maybe someone could model doing this.
> TNX es 73, Mike W3TS
> _
> Topband Reflector Archives - http://www.contesting.com/_topband
>
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Topband Reflector Arc
on the SWR and front back. If you have
a good ground you probably won't see anything changing.
Regards
JC
-Original Message-----
From: Nick Hall-Patch [mailto:n...@ieee.org]
Sent: Monday, December 12, 2016 10:59 PM
To: JC <n...@comcast.net>
Cc: 'topband' <topband@contesting.com>
my receiving Delta
antenna was re-installed higher. The bottom wire went from 3 feet up
to ~6 feet at my QTH.
73
Bruce-k1fz
http://www.qsl.net/k1fz/flag_antennas.html
_
Nick Hall-Patch
Victoria, BC
Canada
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On Mon, 12 Dec 2016 16:35:14 +, Nick Hall-Patch <n...@ieee.org> wrote:
What specific improvements did you note when the Delta was raised Bruce?
Thanks,
Nick
VE7DXR
At 16:23 12-12-16, K1FZ-Bruce wrote:
Dennis,
Is there a photo or sketch available o
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Nick Hall-Patch
Victoria, BC
Canada
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Hall-Patch
Victoria, BC
Canada
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> > _____
> > Topband Reflector Archives - http://www.contesting.com/_topband
>
>
in actual signal levels (with corresponding increase in S/N).
73. . . Dave, W0FLS
-Original Message- From: Nick Hall-Patch
Sent: Friday, January 12, 2018 11:23 AM
To: Petr Ourednik ; topband@contesting.com
Subject: Re: Topband: Band Open - But No Sunrise Peak
Wasn't some of the apparent
xperience the excitement of working people
> they can actually hear. It was great fun. 73. . . Dave, W0FLS
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Topband Reflector Archives - http://www.contesting.com/_topband
Nick Hall-Patch
Victoria, BC
Canada
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nductivity), the worse (lower) the signal level
from the LOG (thank you Dr. Maxwell).
73,
... Joe, W4TV
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Nick Hall-Patch
Victoria, BC
Canada
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ctor Archives - http://www.contesting.com/_topband
> Sent to: d.cut...@ntlworld.com
>
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Nick Hall-Patch
Victoria, BC
Canada
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__
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Nick Hall-Patch
Victoria, BC
Canada
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/_topband - Topband Reflector
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Nick Hall-Patch
Victoria, BC
Canada
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W7RH
--
W7RH DM35os
"It has become appallingly obvious that our technology has exceeded
our humanity." - Albert Einstein
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Nick Hall-Patch
Victoria, BC
Canada
_
Searchable Archi
ucts/solar-cycle-progression), and it
now includes only sunspots and solar flux progression over the years.
Thanks.
Nick
VE7DXR
Nick Hall-Patch
Victoria, BC
Canada
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for the Ap is download the data from "Table of Recent Solar
Indices (Preliminary) of Observed Monthly Mean Values" in the Data tab
below the plots and import the data into Excel.
Carl K9LA
On Sat, Apr 18, 2020 at 2:30 PM Nick Hall-Patch wrote:
> Does anyone know if the "I
akes the BOG useless.
On a previous BOG I used #18 twisted speaker wire and it
picked up very little RF when connected the the radio.
Do I need to do anything with the unused pairs,
that would help?
Any thoughts on how to prevent RF pickup by the feed line?
Nick Hall-Patch
a
modelling tool. I use 4NEC2 but only have access to NEC2 so wires on
the ground don't model correctly.
Is there any one out there with access to suitable software that
could model it for me?
73, Chris G4HYG
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esting.com/_topband - Topband Reflector
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Nick Hall-Patch
Victoria, BC
Canada
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g.com/_topband - Topband Reflector
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Nick Hall-Patch
Victoria, BC
Canada
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chives: http://www.contesting.com/_topband - Topband Reflector
Nick Hall-Patch
Victoria, BC
Canada
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to electrically small mag loops to maximize SNR
from common mode RFI? I would imagine in theory yes, but in application I
have no experience to draw from.
Thanks,
Chris KQ6UP
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Nick Hall-Patch
Victoria, BC
Canada
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