NEC modeling to determine the effects on the fields radiated by a vertical
monopole when siting it near a salt-water coastline can be highly misleading
if the surface wave field is not considered.
For example, the plots linked below show that for average earth conductivity
the E-field at 5
Is there any advantage to using an inverted VEE by the sea? Didn't I read
inverted VEEs had a lot of vertical polarization?
Reason I ask is I plan to do the IOTA contest on an Island in NB or NS and
have not yet decided on an antenna.
Thanks,
Mike VE9AA
Mike, Coreen Corey
Keswick
Hi Herb,
Stew's two element inverted-V beam was 265 feet above sea level,
a spectacular location. The water tower is on the edge of a steep drop
to the ocean.
73
Frank
W3LPL
- Original Message -
From: Herbert Schoenbohm he...@vitelcom.net
To: topband@contesting.com
Sent:
On 3 Apr 2015, at 18:19, donov...@starpower.net donov...@starpower.net
wrote:
Stew's two element inverted-V beam was 265 feet above sea level,
a spectacular location. The water tower is on the edge of a steep drop
to the ocean.
And you get an excellent view of the tower on final
Hi Mike,
There's some vertical polarization off the ends of an inverted-V,
but is significantly down from the horizontally polarized radiation
broadside to the antenna. The advantages of a seaside location
for horizontal polarization are an unobstructed horizon and very
efficient ground
Didn't Stew Perry, W1BB have basically and inverted Vee with open wire
feeders at his famous Lighthouse QTH at Winthrop, MA?
On 4/3/2015 12:48 PM, k1fz wrote:
Years ago there was someone using an inverted V and doing quite well with
DX. It was later found that he had a long vertical open
Another good example was D4B's 160 meter inverted-V Yagi that was setup
near the edge of the bluff at the Monteverde contest site (now D4C).
Al put in an incredible topband signal into the west coast of the USA.
Once when I sent him an email complimenting him on his big signal, he
wrote back
W3RE :
Apparently you missed the references I cited for BBC Engineering
reports.Apparently everyone else did also, as they've not been mentioned since.
And as for only hams being aware of seaside gain, the entire MW DX community
has taken that as a matter of course for a hundred years.
It seems
While reading this thread, the concept of purchasing the Radio Caroline
ship came to mind several times.
It would probably be cheaper than the land, if it is still available. :)
73
Art NK8X
On Fri, Apr 3, 2015 at 5:39 PM, N2TK, Tony tony@verizon.net wrote:
And it is very close to a nice
A LID operating QRO at an excellent northeastern US sea view site with
excellent antennas -- is still
only a *loud* LID, who is able to cause a lot more interference and
consternation than a weak LID.
The above is an excellent example of confrontational interoperability, and
close to the
And it is very close to a nice golf course
N2TK, Tony
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of
donov...@starpower.net
Sent: Wednesday, April 01, 2015 1:04 PM
To: topband@contesting.com
Subject: Re: Topband: Salt-Water Qth!
Hi Paul,
Its the
One could also get an idea of driving you car across a causeway or
bridge of a salt water inlet while listening to an AM station up on the
high end of the AM band and observing the sometimes astounding weak
signal enhancement. Many times also the power line noises and other
industrial QRN
On Wed, Apr 1, 2015 at 12:17 PM, donov...@starpower.net wrote:
Its not practical to place a vertical closer than 1/4
wavelength of an ocean beachfront except in a temporary installation
such as a DXpedition.
Also w...@hudsonvalleytowers.com wrote:
... Is there any scientific data in print to
One could also get an idea of driving you car across a causeway or
bridge of a salt water inlet while listening to an AM station up on the
high end of the AM band and observing the sometimes astounding weak
signal enhancement. Many times also the power line noises and other
industrial
Mike
An Inverted V does have the same lobe horizontal and vertical but they are
90 degree apart, If you run EZENEC and change description option to Ver.
Hor. and Total field, you will see that at 0 degree Horizontal is maximum
and Vertical is zero, at 45 degree both fields are the same, and at 90
What a fantastic location.
Looking at the houses surrounding it
reminds me of a google maps view I checked
out of the Sphinx Pyramids recently, I
had no idea they were surrounded by
houses.
Makes me appreciate rural mountain top
sites all the more.
73,
Gary
KA1J
This is a photo of the
http://www.w8ji.com/mfj-259b_calibration.htm
- Original Message -
From: Jim Brown j...@audiosystemsgroup.com
To: topband@contesting.com
Sent: Friday, April 3, 2015 11:35:48 PM
Subject: Re: Topband: MFJ 259B
On Fri,4/3/2015 4:27 PM, Hardy Landskov wrote:
My 259B seems to have
Frank, Jim, et al,
Ok great. I hope the problem is solved.
Happy Easter
73 Hardy N7RT
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of
donov...@starpower.net
Sent: Friday, April 03, 2015 4:40 PM
To: topband@contesting.com
Subject: Re: Topband: MFJ 259B
On Fri,4/3/2015 4:27 PM, Hardy Landskov wrote:
My 259B seems to have drifted for lack of a better term. A 100 ohm resistor
now measures 85 ohms. There are some trim pots inside but no directions on
how to adjust them or align the unit.
Should I send it back or ???
W8JI published some
Just two years DU7ET worked WAS on 160m using an inverted V. Robert had a
good signal long path almost every day for six months. By the way , he told
me he will be active from DU7ET again starting is October.
73
JC
N4IS
-Original Message-
From: Topband
This is a photo of the famous W1BB water tower in Winthrop, MA.
http://www.sylviaplath.info/photos/winthrop9.jpg
I've seen it many times flying into Boston Logan Airport. The photo was
apparently taken at low tide. Europe is off towards the upper right hand
corner of the photo, the runways
My 259B seems to have drifted for lack of a better term. A 100 ohm resistor
now measures 85 ohms. There are some trim pots inside but no directions on
how to adjust them or align the unit.
Should I send it back or ???
73 Hardy N7RT
_
Topband Reflector Archives -
22 matches
Mail list logo
