series with the 160 TX antenna, I was wondering if it would it be worth
while to substitute a .05 uF disc ceramic to reduce the capacitive
reactance (XC) to under 2 ohms on 160 meters?
Thanks any info. 73,
George, K8GG
_
Searchable Archives: http://www.contesting.com
same
radial system and earth ground below.
Feed point impedance will be between 12 and 25 ohms depending on ground
losses, assuming at least 2000 feet of radials on ground, or decent
elevated radials on a roof.
GL 73, George, K8GG
> During my 1988-1989 stint as J52US in Guinea-Bissau
r to do. HI
73 & GL to all, George, K8GG.
>
> I operated from ITU many times in the 1980âs. The sloping wire from the
> building to the ground had just been installed by Paco EA(?) who along
> with Ted Robinson ran the club station. I traveled throughout Europe for
> my
ore sunrise. It all depends what you have
to tie off to on the back end.
We found that trees, and masts, both metallic and non-metallic make good
front supports as long as the vertical wire is about 3 feet or 1 meter
away from the mast.
I hope this helps. 73, GL,
George, K8GG
> Hi.
>
>
&g
meter trap on top and the top loading wire,
the feed point impedance on 160 is about 25 ohms, of which almost half is
ground losses as determined by a DXpedition on a Pacific island that found
a 13 ohm feed point on a beach over salt water.
GL, 73, George, K8GG
>
> Hi Jamie,
>
>
&
73, George, K8GG..
> Hi
>
> Is there a listing of such frequencies? Want to avoid those in the coming
> contests
>
> 73's Filipe
> CT1ILT CR5E CR6K
>
> Sent from my Huawei Mate 8
>
> Na(o) Seg, 12 de nov de 2018, 17:28, Mike Waters
> escreveu:
>
>> I w
for an inverted-L for 160 either supported from the top of the
mast or from a separate tree.
GL & 73,
George, K8GG
> Hi Pete,
>
> Good question. I haven't done it with any of my three AB-577s, but I've
> seen recommendations from others that the sections be electricall
ower, which worked very well for me. My typical SWR on 160
meters was 1.5:1 from 1800 to 1915, and I considered that good enough. I
did not worry about the SWR on 80 or 75 meters, but found good receiving
advantages compared to my transmitting antenna most of the time.
73, Good luck,
George,
messing with
your instruments?
Just a thought. GL,
de George, K8GG
> Hi guys and gals,
>
>
> Well, to make a long story short my Rig Experts AA-170 has quite working.
> Looks normal but a 56 ohm resistor at the end of the 75 ohm coax reads
> infinite. On the MFJ-259b it reads
80 and out for 160.
In my opinion, it is just easier to not switch anything and put a trap in
line.
73 & GL,
George, K8GG
> Rather than use a trap at the top of an 80m vertical to transition to a
> 160
> inverted L has anyone tried a vacuum relay or even two in series at 1500w
&g
Good point Frank,
We had similar problems at a Caribbean Island ham station and used a
pennant aimed at Europe with the back end pointed at the TX antenna about
100 meters away. Worked well that way. Their Beverage did not!
George, K8GG
> Hi Joel,
>
>
> In my opinion your elev
a
station much further away.
73 and Good Morning from snowy Michigan,
George, K8GG
_
Topband Reflector Archives - http://www.contesting.com/_topband
, George, K8GG
_
Topband Reflector Archives - http://www.contesting.com/_topband
, George, K8GG, 2nd operator in a Multi-Operator Hi-Power entry.
>
> Just to re-state something I posted a few weeks ago . . .
>
> I made a point of checking signal strengths last weekend in the CQ WW.
>
> Once again, there was absolutely NO increase in signals strengths arou
plit-bolts-grounding-products/split-bolt-connectors/copper-alloy-2-conductors-16-str-8-str
There is a larger one on the same "elecdirect dot com" page on the
internet as well.
GL & 73, George, K8GG
> I'll be erecting a 95-foot Inverted-L antenna. At the shack end of the
> a
Europe from
Michigan)
GL all, George, K8GG
> E31A was up and down for a while last night, sometimes OK copy for me and
> sometimes not.
>
> But in the hour before his sunrise he really peaked up A LOT. My logger
> tells me his sunrise at at 3:53Z and my QSO was abou
the RX antenna.
73 and GL, George, K8GG.
> Topbanders,
> if crossing a driveway above ground is not an option, is ist ok to bury
> the beverage wire for, say, 20 feet?
>
> --
>
> Ohne CW ist es nur CB..
>
> 73, Martin DM4iM
> _
>
near blew them up.
73 & Good Luck
George, K8GG
> I just installed a replacement wire for
> the 160 sloper. I made it 129' as was the
> earlier one that came down in the winds. I
> have to use a spud gun to get fishing line
> over the tree tops and where the spud
>
Ladies and Gentlemen,
Isn't it time to just stop the discussion??
73, George, K8GG
_
Topband Reflector Archives - http://www.contesting.com/_topband
y diode as well.
73, George, K8GG...
> *I put the strap around the rotator today. I no longer have a birdie on
> 1820. Not a trace of it on any antenna. Based on symptons, I can only
> conclude it was caused by intermittent contact at the rotator bearings
> or by intermit
AM930 and W8TOP, but, since the spur is
not on site, we just live with it.
The suggestion of a jumper across the rotator makes good sense if some
dissimilar metals in the unit are making the diode.
GL, George, K8GG
> Likely all the spurs you see on 160 that are caused by AM stations will
many times this week.
73 to all, George, K8GG
> Quoting ARRL Contest Update for October 18 2017:
>
> "FT8 mode usage continues to increase! According to a tweet by Michael,
> G7VJR, operator of Club Log, "In September 2017, the number of FT8 QSOs
> uploaded to Cl
W and 160 CW for the next few days
before we had to pack up and go home. (The support we used one of the
crank up towers the Finn's had left from their massive CQWW DX Phone and
CW efforts a few year before.)
I cannot comment on the FCP's.
GL,
George K8GG
> 160 i l with FCP
>
e and either fed them to a magic tee in phase.
Worked well, did not pick up neighbor's spurious signals from home
entertainment devices, etc.
Even a single pennant works well enough, as long as one has a decent preamp.
George, K8GG
> I've discovered that the woods off the corner o
oose from.
> It is a late Summer or Fall project so time to think.
>
> Mike
> n0 odk
> 73
> thanks for suggestions gang.
> _
> Topband Reflector Archives - http://www.contesting.com/_topband
***Good luck de George, K8GG
_
Topband Reflector Archives - http://www.contesting.com/_topband
GE All,
Listening on 17 SSB this evening I hear that the
BCSpecial is up and ready for use. Good luck to those needing Swains
Island on 160.
73 George K8GG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
OM - It looks like someone is hacking into AOL and is sending garbage to
your on-line address list.
GL 73
Original Message
Subject: Topband: (no subject)
From: dnem...@aol.com
Date: Wed, August 15, 2012 8:36 am
To:
kev0...@sbcg
edback like the last DXpedition using Club Log all my entries go
blank.
Any suggestions?
Please respond off line to
k...@voyager.net or to k...@arrl.net Thanks
& 73
George K8GG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
u made it after sundown last night.
Sorry if
I misinterpereted, but that is what I think you asked
GL 73
George K8GG
> Log shows most recent 160Q's from last night but the 80 meter
Q's are all
> missing. Anybody know if there is a log problem or
maybe it was Slim at
&g
wire
inverted-L (5/16 wl on 160 meters) is not the best solution.
Just my
2 cents worth
73 & GL
George K8GG
> Thanks, gentlemen (Eddy, K8GG, ZR,
Roy, Herb, et. al.), for all the
> feedback on this. So, it seems
it's pretty much what I expected --
> if you tune an antenna
transmission line.
Any of the three antennas, 1/4 wl, 5/16 wl
and 3/8 wl, can be tuned in the shack easily with an L-net tuner like the
Ten-Tec model 229 or 238 or the military surplus Collins units, and the
SWR losses are negligible in the 160 meter band assuming good coax is
used.
73 & GL George
z.
This arrangement worked well for me with an AM 930 station running 1 KW
at night only 1/2 mile from my QTH whether I was using a beverage or
pennant receiving antenna that was receiving signals that had to pass by
the AM 930 station to get to my QTH.
YMMV
GL &
73 &
not
around, your lot should reduce ground losses and increase transmitted
signal strength.
73 & GL
George K8GG
> New to the list and new to 160M. I have a
1/4 wave Inverted L that I have
> finally got the bugs out of and
it seems to be working fine. Vertical leg
> is 45' and
n mowing season is finished to enhance his
ground system.
GL & 73 George K8GG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
anywhere from 50 to 100 feet long behind the
house to the trees and fencing at the perimeter of the lot.
I
have heard of others running radials through "crawl space" where
there a house was built with no cellar and raised maybe 3 feet above
ground level.
Good luck,
73, George
K8GG
>
.
Please visit
www.topbanddinner.com for
more details.
73, CU there
George
K8GG
PS: do not reply to this e-mail - send reservation
requests to k...@arrl.net
Thanks !
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
nnas away from the horizontal
section as the vertical section?
>
> Thanks for any
guidance.
>
George K8GG
comments:
Yes, for sure for sure. Having a receiving loop
under the "top loading wire" is not a good idea...
Having a Beverage wire under the "top loading wir
e "instant
QSY".
GL 73 de George K8GG
> Hello folks,
>
> I recently set up a
receiving antenna, and I found that in a SO2R
> scenario
> I have fairly high RF levels at its feedline's receiver end when
> transmitting with second radio on other band.
>
nouncement shortly after the CQWW 160 CW contest in early
February. At that time the website will be open and I will
start taking reservations in mid-February.
Until then, 73 and
GL and CU on 160
George K8GG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
unt capacitor across the feedpoint to ground
to get the 50 ohm match up in the band.
I like the two coil
approach as it is a short curcuit for lightening.
YMMV 73 and HNY 2001
George K8GG
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
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