Hi Bob,
I had a look at your QTH via Google Earth. Would appear that the only
support you have is your tower. And on something like a 65 x115 corner
city lot.How tall is your tower?
73, Guy K2AV
On Sat, Jan 7, 2012 at 10:08 PM, Bob K6UJ k...@pacbell.net wrote:
The reason I am trying a
I sure wish they were getting on 6m as well. I know there are a LOT of 6m
folks in the 160m ranks.
For all the effort it would take to put up a 3el yagi or even a measely
vertical - - - heck, their 40m antenna
would probably work on 6m...Their K3's already have 6m in them.
Operation will be 160 to 10 mts as they said in the website.
73,
Jorge
CX6VM/CW5W
-Mensaje original-
De: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com]
En nombre de Eddy Swynar
Enviado el: Domingo, 08 de Enero de 2012 10:58 a.m.
Para: topband@contesting.com
It never hurts to have a DC block when Murphy is around.
Carl
KM1H
- Original Message -
From: Dave Kirk w6...@yahoo.com
To: topband@contesting.com
Sent: Saturday, January 07, 2012 2:42 PM
Subject: Topband: Bias Tee question
I’m designing a multi element receive array which
Thanks to all who replied to this thread. It seems that the consensus is to
leave well enough alone, although there were some good suggestions on how to
improve the 1/4 wave setup. So thank you again to the Group for the help.
since joining I have learned a great deal about a large range of
thanks guys,
I will experiment with the top loading and also pulling the bottom away to a
wider angle
and see how it goes.
73,
Bob
K6UJ
On Jan 7, 2012, at 8:17 PM, k...@voyager.net wrote:
Bob:
The simple answer is Yes.
I remember the article on the loaded delta loop but have never
Fellow Topbanders:
Another Hi-Pass filter is shown in the 1986
ARRL Handbook on page 30-24. It is also shown in other ARRL
Handbooks. The original article was published in QST in Feb 1978 and
was written by W3NQN, Ed Weatherhold.
Charlie, W0CD, found he
could spread a coil or remove a turn
Dave,
Use a well over rated DC blocking capacitor, this is not an application to save
a few pennies by using a marginally rated capacitor.
You should also use a choke to ground with a high current rating to protect
your receiver if the capacitor shorts out. A choke wound with #18 wire on a
Hi Guy,
You are pretty close Guy ! My little lot is only 65 x 120. I have two masts
for supporting the lower leg of the delta One is
at the rear corner and the other is at the front corner set back about 20 feet.
They are right next to the fences.
The tower is located about 60 feet from
Prompted by Roger, N1RJ, I decided to do some digging around. Aided
by isolating specific stages of my receive signal path as much as
possible, and using precision 3 and 6 dB pads at various points to
see where they dropped the IMD more than the attenuation of the
pad(s), I have come up with a
Hi Paul:
I have tried and tested many commercial and homebrew preamps for use on the
TopBand (including those you talk about below). Although all of the preamps
work - some work better than others.
The W8JI design (that DX Engineering sells) has the best noise figure and
overload handling
seeking any info on loading the hygain hytower vert antenna up on
500kc/136kc, (works FB on 160m with base coil) will be for RX only. if
you have done either pse email.
to top load a vert, must the hat radials emanate from the peak? the
construction of the hytower makes this impossible; i
Hello David:
This is an interesting question - and my love for the HyTower antenna design
promoted me to do a quick Google search for plans for NDB transmitting
antennas. This search yielded a ton of information. Some of it looks very
useful as you think about a possible design for your LF RX
Paul you might want to be careful just shorting the
receiver input. This would also put a short on the
output of your preamp. This would have the preamp
blasted with RF from your TX while trying to feed a
short. My guess would be you could destroy
preamps doing this.
Lee K7TJR OR
I have a Kiwa Electronics Broadcast Band Rejection filter for sale.
http://kiwa.com/
Email me directly for a price.
Doug
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
Paul, I will agree with Lee. I think the best would be to use a small relay
that would open the antenna on transmit and also short it to GND. Nothing
touching the Pre-Amp.
All Electronics have some very nice DIP relays that will do the job. I have
no connection with All Electronics, Just a good
Looking for advice from someone who may have actually done
this. Can't decide which is the best way.
I'm getting ready to erect a temporary short Beverage for the
upcoming VP6 operation. This direction is the most
difficult heading for me to try and cover due to property
restrictions. The
I must have put the wrong address in because non of my reply's to anyone have
shown up here oh well. Good ideas Frank I've got chokes and caps every where in
my design hi hi, but I might just toss the idea out for running power cable's
out to each preamp not as clean but easier. I have 110v
18 matches
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