hi guys,
you have me confused. 4U1ITU is easy from southern arizona. Bordered by
France/Switzerland and Germany all are easily workable.
I don't understand the "black hole" comments.
Larry
-Original Message-
From: Wes
To: topband
Sent: Mon, 25 Feb 2019 1:50
Subje
Even blacker I think, but with the noise and SSB splatter, who can be sure?
Wes N7WS
On 2/24/2019 1:25 PM, w...@w5zn.org wrote:
The propagation into Arkansas on 160 meters from 4U1ITU is pretty much a black
hole. I can only imagine what is like further west
Joel W5ZN
_
I hope so
and that the operatior can stop EU wall
73,
Jorge
CX6VM/CW5W
El dom., 24 feb. 2019 a las 12:56, Raymond Benny ()
escribió:
> Tnx for the info.
>
> Wish someone else could put on 4U1ITU again but perhaps with a little
> notice. It's even rarer on the West coast.
>
> Ray,
> N6VR
>
>
>
>
-
From: Topband On Behalf Of w...@w5zn.org
Sent: Sunday, February 24, 2019 12:26 PM
To: Tree
Cc: 160 ; Raymond Benny
Subject: Re: Topband: Thanks
The propagation into Arkansas on 160 meters from 4U1ITU is pretty much a black
hole. I can only imagine what is like further west
Joel W5ZN
The propagation into Arkansas on 160 meters from 4U1ITU is pretty much a
black hole. I can only imagine what is like further west
Joel W5ZN
On 2019-02-24 11:09, Tree wrote:
Back in 1990, I lived about 30 minutes from 4U1ITU and put about 25K
QSOs
in their log during my 14 month stay. I r
Back in 1990, I lived about 30 minutes from 4U1ITU and put about 25K QSOs
in their log during my 14 month stay. I remember operating the ARRL 160
contest and giving out a few QSOs. They each were like pulling teeth.
160CW 1-Dec-90 05:281 K5NA/2 599
160CW 1-Dec-90 05:322 W1P
Tnx for the info.
Wish someone else could put on 4U1ITU again but perhaps with a little
notice. It's even rarer on the West coast.
Ray,
N6VR
On Sun, Feb 24, 2019, 7:01 AM wrote:
> Last night Dave, K1ZZ, who is in Geneva at the Conference Preparatory
> Meeting in advance of this fall's WRC, w
Last night Dave, K1ZZ, who is in Geneva at the Conference Preparatory
Meeting in advance of this fall's WRC, was able to fire up 4U1ITU on CW.
4U1ITU is still a much needed DXCC entity in North America. Obviously,
the CQWW 160 SSB contest was this weekend. There is considerable noise
on 160 met
Greetings,
Thanks to everyone who sent me their thoughts and suggestions on my shunt
fed tower and the inverted vees. I'm going to ground the feedlines and
install brute force baluns on the vees. I'll report back to the reflector
on my results.
73, Bob K3UL
_
Topband Refl
yes,, says a lot,, a whole lot for dx engineering73 john
On 9/24/2015 4:58 PM, Jeff Maass K8ND wrote:
Thanks to all who replied with suggestions and information!
Tim Duffy K3LR responded on behalf of DX Engineering, and offered to have
our 4-square amplifiers checked-out and calibrated to m
Thanks to all who replied with suggestions and information!
Tim Duffy K3LR responded on behalf of DX Engineering, and offered to have
our 4-square amplifiers checked-out and calibrated to match within +/- 0.1
dB. They are also going to look at the DXE-RFS controller to assure that it
is functionin
A big thank you to Gary, who hung in to make a very tough QSO with my
QRP rig Saturday night to give me #45 in my Topband QRP WAS effort. I
was using our club call, KU6W. Friday night I used K9YC with a
different radio. N0NI heard me on the first call both nights, and much
earlier in the even
On 5/21/2013 1:18 PM, ZR wrote:
Are you now claiming that the thousands of bead choke baluns in use for
decades at HF and 6M dont work?
I have published extensively on this, first in 2005 in a peer reviewed AES
paper, and later in my RFI tutorial. All of this work is on my website.
W1HIS p
To:
Sent: Tuesday, May 21, 2013 11:58 AM
Subject: Re: Topband: Thanks!
On 5/18/2013 10:35 AM, Charlie Cunningham wrote:
If you get the larger beads/tubes thatwill fit over RG-213 etc. you can
make excellent 1:1 current baluns by slipping them over the cable before
putting the connector o
On 5/21/2013 1:18 PM, ZR wrote:
Are you now claiming that the thousands of bead choke baluns in use
for decades at HF and 6M dont work?
I have published extensively on this, first in 2005 in a peer reviewed
AES paper, and later in my RFI tutorial. All of this work is on my
website. W1HIS pub
All good and valid points, Tom! Thanks!
Regards,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
Sent: Wednesday, May 22, 2013 9:35 AM
To: Charlie Cunningham; topband@contesting.com
Subject: Re: Topband: Thanks!
> I th
I think that 31 material is probably a good choice for cleaning RF from
wiring that isn't handling RF power and where there isn't much in the way
of
shunt impedance for the choke to work against -like a line from an
electricity meter carrying a much as 480 VAC (530 VAC at 480 high-line).`
That
CAT5 cables, telephone circuits, audio circuits etc.!
>
> Regards,
> Charlie, K4OTV
>
>
> -Original Message-
> From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Mike
> Waters
> Sent: Wednesday, May 22, 2013 1:01 AM
> To: topband
> Subject: Re: T
That's true, but 31 material is the closest thing I've come to a "magic
cure" here, for several applications in the past year! :-)
It's the ONLY material that kept 75 meter RF from getting into my shack
computer's CAT5 LAN cable (etc.), and it worked perfectly as a choke balun
on a G5RV-type anten
ntesting.com] On Behalf Of Tom W8JI
Sent: Tuesday, May 21, 2013 10:08 PM
To: topband@contesting.com
Subject: Re: Topband: Thanks!
> Well, I haven't used 31 mix material for common-mode chokes or current
> baluns, because I didn't have any - but it would be my choice. I used
> highe
ng.com] On Behalf Of Tom W8JI
Sent: Tuesday, May 21, 2013 10:08 PM
To: topband@contesting.com
Subject: Re: Topband: Thanks!
> Well, I haven't used 31 mix material for common-mode chokes or current
> baluns, because I didn't have any - but it would be my choice. I used
> higher
&g
Well, I haven't used 31 mix material for common-mode chokes or current
baluns, because I didn't have any - but it would be my choice. I used
higher
frequency material because I had plenty of it - some in substantial sizes
31 isn't a magic cure-all, just as no other single material is. One of t
cular - and sometimes made up "binocular" cores by
taping two tubes side-by-side. Not elegant - but seemed to work well.
Regards,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tom W8JI
Sent: Tuesday, May 21, 2013 12:42 PM
These are not "excellent" 1:1 current baluns below about 75 MHz. Below
that range, they are a lousy common mode choke, because they are
inductive. Inductive chokes resonate with a line that is capacitive, so
they actually increase the current. A line shorter than a quarter wave is
capacitive; s
On 5/18/2013 10:35 AM, Charlie Cunningham wrote:
If you get the larger beads/tubes thatwill fit over RG-213 etc. you can make
excellent 1:1 current baluns by slipping them over the cable before putting the
connector on.
These are not "excellent" 1:1 current baluns below about 75 MHz. Below
s for 160 receiving loops.
So, many applications for the cores - not just on Topband! :-)
Have a good afternoon!
Charlie, K4OTV
-Original Message-
From: dospi...@q.com [mailto:dospi...@q.com]
Sent: Saturday, May 18, 2013 12:24 PM
To: Charlie Cunningham
Subject: Re: Topband: Thanks!
Hi
ntesting.com
Subject: Topband: Thanks!
Hi Folks;
Thanks a bunch, to all those who responded with source possibilities for 31 mix
toroids ! I will add a note here, after I actually make a purchase to
designate the lucky victim of my small purchase.
73 Dean W5PJR
Tijeras,
Hi Folks;
Thanks a bunch, to all those who responded with source possibilities for 31 mix
toroids ! I will add a note here, after I actually make a purchase to
designate the lucky victim of my small purchase.
73 Dean W5PJR
Tijeras, NM
All good topband ops know how to
Thanks to all for the great input on HS0.. 73
_
Topband Reflector
Plaque arrived today in the middle of a snowstorm.
Looks very smart indeed.
Thanks to Lew, Tree, The (not so) Boring Gang and of course Stew himself,
may he RIP.
dit dit, Mike VE9AA
___
It is undesirable to believe a proposition when there is no ground
Hello Listers,
A big thanks to everyone who replied to me with your information on my KZ5
QSL search. I'm pleased to report that Fred KZ5FR has his logs from 1979 so
looks like I'm good to go. Have to love e-mail and the internet. 73, Bob
K3UL
___
31 matches
Mail list logo
