I was licensed long enough ago that I have seen a ton of changes in Ham Radio,
all of which were purported to make Ham Radio "easy " and make the previous
generation of Hams feel that their accomplishments were somehow being devalued.
Here are a few...
ARRL DX contest ending Quotas: "We
During the CQ WW 160 CW contest a week ago while operating at the N1LN
M/S station, I happened to be in a fantastic run of EU.
On one and only one QSO, I worked a "G" station whose callsign's last
suffix letter was at least 20dB stronger than the rest of his call. I
mentioned this to NR4M
This could be explained by a power increase when the station's amp came on
after warm up. However, a sudden 20 DB is a lot of increase to explain by
any means. Maybe contacting the G station could help.
Herb, KV4FZ
On Sun, Feb 3, 2019 at 1:38 PM Dan Atchison via Topband <
Guy, I agree in principle that coax with a stranded center conductor will be
more flexible than coax with a solid conductor, although in applications where
there is mechanical stress on the coax, coax with a solid steel core will be
significantly stronger than its stranded counterpart.
Not sure why airplane is an option considering the wavelength. It doesn't have
much of a reflecting surface.
We barely could hear the handful of Europeans for a few minutes at their
sunrise.
K9ZO
From: Topband on behalf of Dan Atchison via
Topband
Sent:
Tim, My take on the popularity is explained this way. FT8 has an SNR
advantage over CW of around 5 dB, PSK31 - about 10 dB and SSB of more
than 15 dB. So for a given set of link conditions, FT8 result in a Q in
the log more often than the other modes.
Add in the poor prop conditions and
I don't have an explanation for this, but I had a similar experience during
the contest. My receiveantenna is an unterminated BOG running alongside the
road in front. I struggled to get F4HEC's call because he was so weak. He
persisted and I finally got it. He was the first European that I
For 160 meters don’t think of a jet as a reflecting surface. Try “thick
wire”. Particularly one in a tight turn and wings significantly vertical.
73, Guy K2AV
On Sun, Feb 3, 2019 at 2:10 PM Paul Kiesel via Topband <
topband@contesting.com> wrote:
> I don't have an explanation for this, but I
Hi All,
Thanks again for your help back In December. KC4D’s 135’ tower (110 degrees
electrical length) with an omega match is up and running. There are 60 110’
radials though half go out 40’ and are coiled up until permission is arranged
to go on neighbors land. The shunt is a 4 wire cage
My experience with 142 wound on 240-31 cores would agree with Jim's
experiment. NO problems after years in service. It is well known that
TFE insulation is subject to creep - I've proved that in wire wrap
service with cut thru shorts. However, that is with the wire tight
against as sharp an
Back in the early 60s, NASA launched a couple of satellites named Echo I and
Echo II that were essentially huge reflecting balloons. You could tune to WWV
on 20 MHz at a time of day when that was above the MUF. When the Echo
satellite came by, WWV would pop up out of nowhere for a few seconds
Tim,
You wrote in your reply to Mike, W0MU:
>...you are buying into a myth that both supporters and detractors of
FT8 perpetuate. The myth that FT8 is superior for DX'ing, to other modes.
With all due respect, I think you are 'buying' into the 'red herring'
that some are using to 'bad
Yeah the elitist attitude of CW being the only thing that’s real that seems to
permeate this list at times is quite stale.
I work CW, SSB, RTTY, FT8whatever gets the contact in the log...it’s all
radiotake the radio away or have Mother Nature take the path down and
nothing gets
I would not repeatedly bend any coax with a solid center conductor. Which
leaves RG142 for permanent routing. Jumpers to and from back of TXR and
amps etc are always RG400. Windings on cores are always RG400. RG400 shield
weave and center conductor made of very fine strands of silver coated
Mike, you are buying into a myth that both supporters and detractors of FT8
perpetuate. The myth that FT8 is superior for DX'ing, to other modes.
2018 was my "year of FT8". I participated in several on-air WSJT new
feature tests including DXpedition mode testing. I spent the vast majority
of my
Well said. Thank you.
From: Topband on behalf of Cecil Acuff
Sent: Sunday, February 3, 2019 7:06 PM
To: DXer
Cc: topband@contesting.com
Subject: Re: Topband: FT8 vs other modes - my numbers.
Yeah the elitist attitude of CW being the only thing that’s real
Maybe the International Space Station could reflect a 160 meter signal or
reradiate it. It's larger than a football field. Just a thought. Let's see,
people could use the space station to bounce signals off of. Another reason to
keep it from falling in the Pacific Ocean someday.
Terry
KI7M
>
Hi Folks,
A few years back some 9913 I was using apparently got water in the coax. I say
this because of fluctuating SWR issues and I noted the shield when cut into was
almost 'black'. So for my minor purpose of using spare coax for my dump power
on an 80 meter 4-square can some of this coax
I don't know exactly what you mean by "dump power", but I suggest that you
throw that nasty corroded coax in the garbage. Do not pass go, do not
collect $200. ;-)
Not unless you can figure out a way to scrape all sides of all the strands
in that shield! *For an effective shield braid, they all
I wouldn't count on it!
73, Mike
www.w0btu.com
On Sun, Feb 3, 2019, 9:25 PM terry burge wrote:
> Maybe the International Space Station could reflect a 160 meter signal or
> reradiate it. It's larger than a football field. Just a thought. Let's see,
> people could use the space station to
Okay.
73, Mike
www.w0btu.com
On Sun, Feb 3, 2019, 10:52 PM terry burge wrote:
> Hi Mike,
>
> Would not count on it, huh? Well, if the Echo 1 and echo 2 would work
> (which we know they did work and prove the method for bouncing signals off
> a satellite to elsewhere on the earth, why not
Use the length,
At the far end put it into a dummy load.
Put your watt meter at the transmitter, make say 100 watts,
move watt meter to the dummy load and see how many watts are there.
Thats the losses.
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
Hi Terry,
It seems to me that it ought to be fine to use the coax. The fact the coax
has more loss than non-contaminated coax shouldn’t matter, since the whole
point is to dump the wattage as part of the 4 Sq. System. Using lower loss
Coax would only mean more power would get to the dummy
Hi Bob,
The issue I'm faced with is I have 168' to the base of my tower. The Comtek
4-square box is another 64' up the tower. To get to the wattmeter just outside
my shack window is perhaps 15-20 more feet. All told, perhaps 252'. In the
process of getting the wattmeter where I could read it
The last version of my elevated 40m 4-square (~2016-7?) was built with
belden stuff that had the black coating all along the length. I buffed
it up and used crimp connectors. Worked great.
My reasoning was that while the contamination was going to affect some
of the cross connects of the
25 matches
Mail list logo
