I know this is really out of this groups subject , but , you guys know more
about antennas than any other site.
So , I may head to Barbados in February just to have fun during the ARRL CW
contest
in my limited research i have sort of landed on this antenna ...
Comet CHA250B HF/VHF...
I have
I have been reading this thread all afternoon...
I can see all sides of the issue...
I am an avid CW op , but , my current situation prohibits me from putting up
any antennas that are even reasonable this sucks since I have a TX-472 in
storage just sitting there :-(
I was actually talking to
Would someone be able to help me model this antenna ?
there will be serious constraints on my end , but , we can discuss that
privately...
basics , 50ft vert wire , my assumption is it will be OCF , also I can have no
radials , and no chance of going horizontal with antenna ...
Dan N8DCJ
___
Sorry guys I know this is top band reflector , but ,. you are used to dealing
with people with very compromised antenna situations...
here is my problem...
I want to get on the air , live/rent in a double ( i freaking hate it ,
situation is what it is for now) in a neighborhood , I can probably g
I am in need of a couple outlet strips for the shack , what is the best option
out there that is not overly expensive ?
Dan N8DCJ
_
Topband Reflector
I do not recall if I posted this last year or not , but , due to circumstances
I was not able to implement this , however , I will be starting on it
shortly
keep in mind that I am living in a rental house so there is only so much I can
do
All ground rods are 5/8" copper clad steel , I
I think I asked something similar last fall , but , circumstances changed and I
couldn't do anything about it at the time...
So , here I am again looking for a source of radial wire I was thinking of
either going with K2AV's FCP or a radial field If i go with the radials I
was thinking
Whats a good source for Amphenol PL-259's ? I see DX Engineering has PL-259's ,
but , it doesn't give the manufacturer.
TIA
Dan N8DCJ
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UR RST IS ... ... ..9 QSB QSB - hw? BK
Awhile back I had an issue where i was losing signal after transmitting , i
found out that the antenna was basically shorted to ground and it appears that
it may have done something to the switch . I currently have antennas on
positions 2 and 6 , if I am listening to a signal that is S5 and i s
I am considering modifying my Inverted L such that the vertical part (~ 70 ft)
is a cage of say 4 wires , purely for bandwidth. Besides BW any Pro's and or
Con's to this idea ? my current configuration allows me to use from about
1800-1860
Dan N8DCJ
_
...
as soon as i get an enclosure I will rework the feed system again so that it
isn't so susceptible to issues such as this...
Dan N8DCJ
From: Dan Bookwalter
To: "topband@contesting.com"
Sent: Tuesday, January 24, 2012 3:48 PM
Subject: Topban
Ok , I am having a real problem here that I haven't been able to solve yet.
I have an inverted L out at the tower that is about 160' long , 70ft vertical
the rest sort of horiz , slopes down I have one run of RG213 to the RCS-10
remote antenna switch which is at the tower , it was very close
I am totally reworking the feed system on my Inv-L... I have decided that I
would like to use a large metal enclosure depending on cost. I need something
about 20"L x 16"W x 8"D. Anyone have a good source or a better idea ?
Dan N8DCJ
___
UR RST IS ...
Dan
I lost your email you sent regarding matching my Inv-L , can you resend it ?
Thanks
Dan N8DCJ
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
Paul
I have not yet been able to try anything :-(
I hope by Wednesday to start working on it , my plan is to ground the RCS-10 ,
and try retuning the amplifier , if I burn out another relay my plan is to
totally rework the feedpoint of the antenna , move the switch to the otherside
of the tow
and such
thoughts ?
Dan N8DCJ
-Original Message-
From: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com]
On Behalf Of Dan Bookwalter
Sent: Saturday, December 31, 2011 2:41 PM
To: topband@contesting.com
Subject: Topband: More Inv-L match
well about a month ago i put up my Inv-L , it is now ~165ft , I have an air
variable in series , and 12 radials anywhere from 150-250ft long ( going out to
add more as soon as i am done typing this). my SWR wasn't too bad maybe 1.7:1
at the best. Two nights ago I added an amplifier to the mix ~7
Ok , on to my next dumb question . I now have 12 radials anywhere from
125-250' long , as expected my SWR went up , so I lengthened the horizontal
part , the overall length is now about 175ft (72ft vertical). I added an air
variable cap (not sure of the value , but , it worked great at anoth
I installed an Inv-L for 160 of about 134ft , ~72 feet vertical , when i
checked the SWR initially it was about 1.2:1 , then when i connected the ground
rods it rose to 1.5:1 , today I added the first 2 radials and the SWR is now
2:1. The antenna is being fed directly , my question is basically
As soon as i have th radials under the Inv-L i was considering constructing a
K9AY rcv loop system. The best/easiest place to put it is actually jsut out
side the shack , but , I am wondering if the 2 story house (about 30 ft away
from the loop) between the loop and basically EU will have much
I am putting up my Inv-L , one thing I fear is that if the wire breaks at the
feed point I will lose the wire as if goes thru the pulley at the top of the
tower. Is it ok to have a small loop about 3-4 ft above the feed point around
an insulator , so I can secure it to the to the tower so that i
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