hi Guys,
interesting discussion
If want, hear this file,
https://drive.google.com/file/d/0B8I6Nck0GwTdYTI0MzVkY2QtYjUyYS00YmE3LTk4NTktNWVlNzE2ZGFiYmE1/edit?usp=sharing
this is E74AW and OZ1LXJ recording of ZL3IX, at same time, John was
so kind and sinchronise those two audio recordings
Here are some pictures and a sound file or two...
http://www.w8ji.com/HF%20circular%20polarization.htm
- Original Message -
From: d...@prijedor.com
To: topband@contesting.com
Sent: Wednesday, February 12, 2014 6:41 AM
Subject: Re: Topband: circular polarization on 160m
hi Guys,
Hello all,
My original post regarding circular polarization receiving antennas for 160 was
posted 2/2/2014 as a comment on Bill, VE3CSK's post regarding his observation
of apparent rapid polarization shifts in the signal received from FT5ZM, on
Amsteram Island at their sunrise. Bill was using
BTW - does anyone know if the EME boys employ circular polarization?
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Charlie
Cunningham
Sent: Wednesday, February 12, 2014 1:35 PM
To: 'Tom W8JI'; d...@prijedor.com;
Here’s a recent link from Ed KL7UW regarding his experience with Adaptive
Polarity Reception: http://www.kl7uw.com/LINRAD.htm
We were discussing the K3 and dual receiver diversity mode, and I had asked him
about his EME and polarity antennas. 160M did come into the conversation as
well.
Might
Wow! That's really interesting, with really detailed information and
directions, Gary!! Thanks for sharing!!
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Gary and
Kathleen Pearse
Sent: Wednesday, February 12, 2014 1:54 PM
To:
Thanks, Joel! That makes perfect sense to me! I don’t keep up with EME, as
I’m an HF CW DXer, but it seemed that the EME guys might use circular
polarization to contend with the Faraday Rotation in Earth’s atmosphere,
from my spacecraft days of long ago! Thanks!
73,
Charlie, K4OTV
... circular polarization is standard on 23cm, 13cm and 9cm EME. For 10
GHz it is becoming more popular (because there are now feed designs that
can be (more) easily reproduced on this band.
73ss
Carsten, DL6LAU (QRV on 23cm, 13cm, 10GHz and 24GHz EME @ DL0SHF)
Am 12.02.14 19:47, schrieb
Yikes, HEAVY snow, freezing fog and 23 degrees F in Raleigh! It's really
coming down and accumulating FAST here! Next we're supposed to get hit
with sleet, freezing rain and ice - up to 1/2 inch! Hope my power stays on!
I'm too crippled up and there's too much snow already to try to get out to
Thanks for the info Carsten! Makes perfect sense to me, based on my spacecraft
experience of long ago. Thanks for the update from the EME crowd!
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Carsten Esch
Sent: Wednesday,
Hey Charlie,
We have about 3-4 in. of snow on the gnd, and just started to
sleet, and maybe some rain, abt an hr ago. We are in the country
and on a well, so have drawn up some water, flash lights, oil
lamps gas logs at the ready. I have a geny too, but its pretty
hard to pull in cold wx...makes
Hope for cloudy days after the ice build up. Towers often fail when the sun
heats the south guy wires. When the ice drops off rapidly, the weight on the
north guy wires can pull the tower over.
73
Bruce-k1fz
We have about 3-4 in. of snow on the gnd, and just started to
sleet, and maybe some
It's really a shame what that freezing rain will do to an antenna farm. I
wish that global warming was a reality in situations like this. I
fortunately rarely get ice storms of this nature and I thank God for that.
To see all your hard work taken down by nature is heart breaking.
Doug
Think of
Charlie and All,
We wish you the best of luck.
I live in a heavily wooded neighborhood and used to lose power at least once a
year. I also listen to the LF and the VLF spectrum as well as operate MF and HF.
I bought a generator to power the refrigerator and the heating system in the
winter. I
Hi, Bill!
Well, it's bad out there! Lots of gridlock on the roads and now the weather
people are calling for 1/2 inch to 3/4 inch of ICE! That WILL bring the power
down. Don’t' thimk I'm able to get my generator going, altho ugh it has bropu
ght me through a few ice storms and a hurricane in
Bill VE3CSK said I have been listening several evenings now on 160M using
my K3 in diversity mode with the TX vertical array on one receiver and a
full-wave horizontal loop on the other. The rapid apparent polarization
shifts seemed quite different from the slower QSB that we often experience
on
I used it on 1296 a bit over 30 years ago, however both ends have to agree
on which rotation they will use. I suspect it is more standardized now.
And a lot easier to make power than a ring of 7289's with water jackets
added!
Carl
KM1H
- Original Message -
From: Charlie Cunningham
Bruce,
I live in 'wind farm central' (Devon, southwest UK) and have direct experience
of wind generator EMI.
The small generators (up to 50kW) almost universally use an induction principle
and are RF silent. But the type that sit on 160-300ft towers and generate in
the 1-5MW range are
Hey, you had plenty of advanced warning this one was going to be brutal!
I hope you and anyone else in the path get thru it OK.
The 2008 ice storm up here still shows plenty of scars and some of my
VHF/UHF long booms still arent repaired/replaced. Is easier to play on the
ground with low
I keep a Honda EU 2000i genset
(http://powerequipment.honda.com/generators/models/eu2000i) in the house for
emergencies. We (Fairbanks, Ak.) had a wind and ice storm in November…lost my
160 wires for a while, two trees hit the house, and another broke the power
line for over a couple days.
On 2014-02-12, at 4:50 PM, Carl wrote:
Hey, you had plenty of advanced warning this one was going to be brutal!
You can NEVER EVER properly prepare for what hit us here, Carl---NEVER.
~73~ de Eddy VE3CUI - VE3XZ
_
Topband Reflector Archives -
Hi, Doug and Eddy and all others!
Well, sadly ice storms are more common than snow storms in North Carolina,
Yes I've lost a few antennas to ice and wind. I lost my 160 inverted L when
a hurricane tipped over the tree that was supporting the top wire. Worse
though, was when tohe wind and ice took
I'll have to look into that, Gary! Mine is much bigger. A little generator
like that, I could keep in the house and pull out on the back deck when
needed if it would supply enough power to run the air handler on my gas
furnace and a fluorescent light or two, I'd be good to go!
I'll check it out!
I'll have to look into that, Gary! Mine is much bigger.
I have a 25kW continuous 50 KW intermittent at the power pole.
It runs from a tractor PTO. All I do is back one of tractors up to it and
away we go. What I like about this arrangement is I don't have to exercise
it. It is always in
You can always prepare for your own safety Eddy; cut down trees that imperil
buildings and vehicles, have a generator already pretested and in place,
chain saw ready and tested in case you need to cut your way to a gas
station, etc
For the 2008 storm we were without power 12-13 days I believe
Hi, Tom!
I just checked my junk mail folder and a LOT of messages have shown up there
that don't normally go there, including msgs from Topband Reflector. Looks
like you are bein hit pretty hard, but the weather service is callinfor 1/2
-3/4 inc of ice up here tonight, so I guess that you j ust
Yes, Bruce, that's what happened to the 2000 ft WRAL-TV tower here some
years back. They said that chunks of ice were coming off those gu y wires to
the south the size of refrigerators. The unequal loading on the tower and
the vibration of the guys was just too much and the whole structure
Well, Carl, it's question like yours that make the discussion interesting
and point out opportunities for future investigation!
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Carl
Luetzelschwab
Sent: Wednesday, February 12,
Thanks, Mike!
Well, I guess I was in denial, perhaps. The last time we had one of these, I
wasn't so crippled. I should have made my way out to the garage and dragged
out the generator and run the cable to the house before the snow and ice
started.
But now. I am where I am and just have to do
Gee, that should work great, Tom! How is the shaft rotatoion speed
controlled to maintain 60 Hz?
I've been seriousl y considering installin a 25-40 KW generator with
electric start and automatic fail over and transfer switch that would run
off natural gas. No fuel or cranking problems and no need
Gee, that should work great, Tom! How is the shaft rotatoion speed
controlled to maintain 60 Hz?
Tractors are like almost any other thing that has an engine and a manual
throttle control, including lawn mowers. They have engine speed feedback
that works like mechanical ALC. It isn't like
Thanks, Tom! That all makes sense! Come to think of it, the Briggs
Stratton engine on my 5500 watt generator maintains its speed well. I don't
know what sort of feedback it uses, but it's effective! If I make a big load
change, like bringing on a water heater, I can hear a pitch change but the
From what I see on the forcasts I'll also be needing luck.
Once the snow hits about 5AM the winds will be slowly rising with the
temperature and once it hits about 31 it will be in double digits reaching
the high 20 mph range which includes 6 hours of snow/ice thru the dark hours
before the
HI, Carl!
Well, I figured folks up in your area are next in line, and considering how
quickly this has moved up here from the Gulf of Mexico I figured it
wouldn't take too long to arrive up your way ad impact sopme of my lawyer
friends in Hartford, CT.
Laying in some fuel for the generator
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