Hi all -
For the first time in many years, I am having a tremendous RF problem,
the result of my new installation.
This past weekend I installed a new 80m full-wave delta loop near the
house. It works well - in fact, I am getting roughly 15-20db gain over
my GAP Voyager which is abt 200 feet from the house! It was worth the
effort to spend most of the day outside, although the temps never got
over 15 F.
Unfortunately, there is SO MUCH RF in and around the shack that I can't
actually use the thing without first disconnecting everything. Mostly
phone lines, 12v lamps, etc. I think I can actually SMELL the ozone when
I operate CW! Not so great. Perhaps someone out there can help me figure
this out.
The facts are:
-270' long, give or take, NOT totally equilateral, but not THAT far off.
-Resonance is at 3975 khz (which was design point).
-Bottom corner fed (35 feet from house, 16' high)with roughly 50 plus
feet of 450ohm ladder line to 4:1 balun to same amount of coax into
shack, into Dentron DTR-3KA tuner.
-Apex is at 72' mounted at top of tower.
Is this just a matter of too much RF too close to the house? or am I
missing something, and if so, how can I tame the beast?
I once had a small sloper near the house and it did the same thing on
80m and that's why I have the GAP. My 40m4 at 72' doesn't bother
anything. Any help or useful ideas would surely be appreciated.
Thanks!
73 de Jeff K2KV
formerly WA2SYN
k2kv@netusa.net
>From Tim_Coad@smtp.svl.trw.com (Tim Coad) Tue Jan 21 23:28:45 1997
From: Tim_Coad@smtp.svl.trw.com (Tim Coad) (Tim Coad)
Subject: Need Quicky 160 mtr ant.
Message-ID: <n1358261527.39973@smtp.svl.trw.com>
1/21/97 2:16 PM
Help.
The ARRL DX contests are coming soon.
I need a real simple 160 mtr antenna I can put up in one afternoon. We have
a 120 foot tower with 20&40 mtr monobanders and an 80 mtr vee. There are
also some low fixed 20 and 15 mtr beams for SS on it.
Any ideas besides another inverted vee for 160?
Or is that the best choice at this point?
Tim - NU6S
>From mcaron@riq.qc.ca (Maxime Caron) Wed Jan 22 00:16:51 1997
From: mcaron@riq.qc.ca (Maxime Caron) (Maxime Caron)
Subject: Dunestar Filters/W5XD LOG Soft.
Message-ID: <9701220121.AA18432@socrate.riq.qc.ca>
I'm looking for the adress/phone number of a place where I could find the
Dunestar Band Pass Filters.
Also, I'm checking into buying a Voici Keyer for my computer. I've read a
lot of info on all the cards available around. I was wondering if anybody
was using a voice keyer with the W5XD WriteLog software under windows. If
so, wich card did you use or system. Or did anybody get the sound card to
Send the .WAV File under this software.
Thanks for the answers. (Reply direct)
*****************************************
* Maxime Caron *
* Internet: mcaron@riq.qc.ca * DISCOVERING The Net From
* Compuserve: 76162,3430 * Quebec City in Canada.
* Ham Operator: <VA2MRX> *
* Quebec Contest Group "VE2UCD" *
* http://www.riq.qc.ca/users/mcaron/qcg *
* ***************************************
>From km9p@contesting.com (Bill Fisher, N4VJ / K4AAA) Wed Jan 22 01:31:13 1997
From: km9p@contesting.com (Bill Fisher, N4VJ / K4AAA) (Bill Fisher, N4VJ /
K4AAA)
Subject: TBDC Logs
Message-ID: <199701220131.UAA19167@paris.akorn.net>
The following guys submitted logs with no indication of their power:
SM5BFJ
K8MR
VE7FPT
N1MD
W3TMZ
W7GNP
WA2DFI
KO7V
KB0IHM
N7CKD
N5DX
N8YYS
G0IVZ
Please email tbdc@contesting.com this information. If no repsonse is heard
within one week you log will be considered high power.
73
Bill Fisher, N4VJ & K4AAA (EX KM9P)
http://www.contesting.com
|