We all have our own unique noise situation. I am also lucky like Bruce
and my noise is centered
in one direction. My DX engineering NCC-1 makes it all go byebye. My
problem is I dont have
enough real estate to do justice to 160M radials. My inverted L is
using a folded counterpoise.
Bob
Bill,
Thanks for sharing this. Good to know !
I think I will order the replacement gold plated pins and install them
the next time I need to "go under the hood"
Bob
K6UJ
On 11/11/16 9:58 AM, Bill and Liz wrote:
My K3 developed an S2-3 noise level only on 160M. I was abl
true for
such systems.) "
This figures to a little over 15 feet above ground for 160M. I can
manage that.
I think he has another study for the added efficiency with a ground
screen under elevated radials.
I want to find that one too.
Bob
K6UJ
On 11/9/16 9:04 AM, David Cutter wrote:
H
preamps.
The KD9SV unit looks pretty good !
Now to find out how it compares.
Bob
K6UJ
On 11/8/16 1:54 PM, Don Kirk wrote:
Gary (KD9SV) kindly loaned me one of his 994 x5 preamps (sometimes called
KD9SV VLN (very low noise) preamp) so I could compare its Noise Figure
against one of my W1FB
radial to have decent
decoupling ?
I think you are right, for most hams, including me, it is hard to get
very much height
so we must compromise, but we do the best that we can do.
Bob
K6UJ
On 11/8/16 2:55 PM, Rob Atkinson wrote:
A vacuum variable for L impedance matching is unnecessary. Vacuum
Charles,
Thanks for the very informative post !
I am planning an install of a 160M inv L myself and appreciate the info.
Bob
K6UJ
On 11/8/16 9:34 AM, Charles Moizeau wrote:
From: Charles Moizeau <w...@msn.com>
Sent: Tuesday, November 8, 2016 12:32 PM
To: farr...@yahoo.com
Subje
door. :-)
I probably could have changed the frequency code on his unit but the
ferrites worked fine. I don't know the mix
just tried a couple of clamp ons I had.
Bob
K6UJ
On 11/6/16 8:20 AM, Bob Lawson N6RW wrote:
Jay
If you use snap-on ferrites, make sure they are #31 mix. 31 mix
with
my HF rig in the car
in about a half mile radius and see if I could plot the pattern. This
might not be doable,
but thought I would throw it out there.
How do you test your BOG ?
Bob
K6UJ
_
Topband Reflector Archives - http://www.contesting.com/_topband
Mark,
I know what you mean about 8 foot ground rods. I bought a hammer drill from
Harbor Freight and use it to drive the ground rods now. Piece of cake.
They are on sale quite often. Harbor Freight has sales quite often,
actually
all the time, hihi.
Bob
K6UJ
On 10/22/16 7:12 AM, Mark
tonight
will tell the tale.
Bob
K6UJ
On 10/22/16 5:09 AM, Tim Shoppa wrote:
Some of us are looking at the contest calendar for next 7 consecutive
weekends (CQWWSSB; ARRLSSCW; WAERTTY; ARRLB; CQWWCW; ARRL160M; ARRL10M)
and spending some quality time with our families in advance
on receiving with your BOG ?
Bob
K6UJ
On 10/13/16 2:34 PM, Chet Moore wrote:
Hi Hank,
what i do here is pretty much what you want to do. I run mine down the
gutter from my house about 300 feet laying the wire in the gutter. I have
the wire on an electrical cord reel. It crosses the driveways of 3
coils.
http://www.force12inc.com/content/Application%20Note%20-%2040m%20Delta%20Coils%20Overview%20DRAFT%202.pdf
Bob
K6UJ
On 10/10/16 9:03 PM, Ray Benny wrote:
I am building a 90 ft, 80m rotatable dipole. I am near the point of fabricating
the inductors/coils that will go about 23 ft out
The NCC-1 is up for sale again. I thought it was sold.
I deleted the two inquiries I received, and was
going to notify but thought it best to let everybody know it was back on
sale.
Contact me at k...@pacbell.net if interested. (off the reflector please)
thanks,
Bob
K6UJ
On 9/24/16 8:34 AM
The NCC-1 I had for sale is now sold
73,
Bob
K6UJ
On 9/24/16 10:33 AM, Paul Christensen wrote:
My NCC-1 was purchased from DXE back in 2008-2009 and has never been used.
Apart from changes to the manual, are there any evolutionary hardware changes
or modifications?
Paul, W9AC
I have two DXE NCC-1 noise cancellers.
I am selling one. Brand new, never used.
Asking $450.00 shipped.
If interested contact me off the reflector at k...@pacbell.net
Bob
K6UJ
On 9/24/16 3:24 AM, vk...@arach.net.au wrote:
G’day
For those looking for insight into how the NCC-1 noise
Jeff,
Good point. !
Bob
K6UJ
On 9/23/16 7:53 AM, Jeff wrote:
Because it's considered propriety information. You paid for a black
box that does what it says it will. You did not pay for the why or how
it works. This is not unusual business practice. You bought a car with
dozens of black
Rob,
I just looked at my NCC-1 manual. No schematic.
It seems odd they wont provide one. I wonder what their
reason is ? I would give them a call.
I may call them myself, I am contemplating the purchase of the
new model but would like a schematic
I like your callsign :-)
Bob
K6UJ
On 9/23
Mark,
I think you are talking about this RX antenna. I would like to know
more about it.
http://lists.contesting.com/_topband/1996-10/msg00137.html
Bob
K6UJ
On 9/21/16 6:01 PM, Mark K3MSB wrote:
Hello All --
Do any of you have any experience with this antenna ?
73 Mark K3MSB
that the K9AY loop antenna can perform fairly close to
a tower, but how about a flag ?
Bob
K6UJ
On 9/22/16 10:11 AM, Paul Mclaren wrote:
Bruce,
Yes, yes and yes. 9:1 transformers, beverage friendly resistors (cant
remember the exact spec) with about 1" connection to the ground rods.
Ground
://www.amazon.com/Krylon-K04293000-Camouflage-Technology-11-Ounce/dp/B00176UX26/ref=sr_1_1?ie=UTF8=1474310890=8-1=krylon+camo+spray+paint
Bob
K6UJ
On 9/19/16 10:41 AM, Gary Smith wrote:
I'm so close to being done with putting
this together. I have all 8 antennas made
@ 23' each the tip section is .5
JC,
My expectation is the same as yours, cycle 25 should be better than 24
for the
low bands. The basis for my expectation is I am putting up better 160M
antennas
this summer and I am an optimist :-)
Bob
K6UJ
On 6/5/16 6:41 PM, JC wrote:
"I assumed that this was normal propag
thanks Clive !
Bob
K6UJ
On 6/4/16 1:51 AM, Clive GM3POI wrote:
This is the link I used
http://www.ebay.co.uk/itm/262144126639?_trksid=p2060353.m2749.l2649
<http://www.ebay.co.uk/itm/262144126639?_trksid=p2060353.m2749.l2649
ame=STRK%3AMEBIDX%3AIT> =STRK%3AMEBIDX%3AIT
73 Clive
Thanks everyone for info on a source for the UHF connectors.
This is a great forum, help is here, all you gotta do is ask ! :-)
Bob
K6UJ
On 6/3/16 8:20 PM, donov...@starpower.net wrote:
http://www.ebay.com/itm/PL259-UHF-male-1-2-for-Corrugated-copper-Standard-Andrew-Heliax-connector-QW
would
prefer to not have an adapter if possible. I did find one (below) its
not an Andrew
EZfit but looks to be about the same thing. Know of other options ?
http://www.theantennafarm.com/catalog/rfs-734745-5804.html
Bob
K6UJ
_
Topband Reflector Archives - http://www.contestin
Rick,
With both ants being fairly equal on DX transmit, the advantage of
quieter receive
would put the dipole ahead in my situation I believe.
Not really bad but I do have local noise from power lines that come and go.
thanks for the info,
Bob
K6UJ
On 5/4/16 5:25 PM, Richard (Rick
high, not 1/2 WL which would be much better. I know this
is the topband forum but felt I would have a better chance of getting
information on this forum.
thanks,
Bob
K6UJ
_
Topband Reflector Archives - http://www.contesting.com/_topband
Don't bash yourself too hard Ken. I have had my share of oops, what did
I do ? :-)
It will be interesting to see what happens when you disconnect the feedline.
Bob
K6Uj
On 4/26/16 6:33 PM, Ken K6MR wrote:
Yes I did put that in. I think. I modeled the whole thing and duplicated
Ken,
I am thinking along the lines as Gregg. Try disconnecting the feedline
at the antenna and compare noise levels.
Do you have a choke on both ends of the feedline ?
Bob
K6UJ
On 4/26/16 6:00 PM, Ken K6MR wrote:
Good idea Gregg. I suspect there may be some common mode problems.
I did
the Flag. After this we can go over the construction of the Flag and
its feed system issues like eliminating
common mode interference. Maybe it would be best to discuss this
directly rather than the reflector ?
I can be long winded. hihi
Bob
K6UJ
On 4/23/16 10:42 AM, Ken K6MR wrote
with what we have as far as room for antennas.
73,
Bob
K6UJ
On 4/23/16 9:45 AM, william radice wrote:
I have an antenna of very similar design and performance. It is an
all aluminum lawn chair on a pole.
BILL
On 4/22/2016 1:42 PM, Rob Atkinson wrote:
Throw bricks all you want to the end
it compares to my
RG6. Would this be a waste
of time ?
Bob
K6UJ
_
Topband Reflector
Jim, K9YC, where are you ? (If anyone has Jim has for sure)
Bob
K6UJ
On Jun 9, 2013, at 6:57 PM, wb6r...@mac.com wrote:
G3TXQ shows characteristics for common mode chokes:
http://www.karinya.net/g3txq/chokes/
Has anyone built the 17T of RG58 on an FT240-31 choke and verified
Communications ALA 1530
Bob
K6UJ
All good topband ops know how to put up a beverage at night.
_
Topband Reflector
meter between the connected together
radials and the vertical and prune the vertical for resonant freq.
Bob
K6UJ
On Mar 29, 2013, at 9:56 AM, Jeff Blaine wrote:
What is the preferred method of tuning elevated radials for uniformity?
I realize you can measure the lengths, try to get uniform
very good !
what are using for an antenna ?
73,
Bob
K6UJ
On Mar 6, 2013, at 6:58 PM, N7DF wrote:
Those guys are great I just worked them on 160 with only 1 watt output!
Now I am going to try with 100 milliwatts
_
Topband Reflector
_
Topband Reflector
the reverse beacon
network ?
And if so what were your results ?
73,
Bob
K6UJ
On Dec 15, 2012, at 5:45 AM, Charlie Cunningham wrote:
Hi, Tom
Well, I also used a 40m GP with 4 elevated resonant radials about 6' above
ground and I worked an awful lot of really good DX with it!! I found
.
Any suggestions on other comparisons or set up ?
73,
Bob
K6UJ
On Dec 15, 2012, at 10:25 AM, Charlie Cunningham wrote:
Well, I haven't done such an elaborate test, Bob! But I'd be extremely
interested in seeing your results! At present my 40 m GP is down because I
needed to clear away
thread.
It will be interesting to see what we can find out.
73,
Bob
K6UJ
On Dec 15, 2012, at 2:42 PM, Charlie Cunningham wrote:
Well, to me, Bob, the 1/2 wave 40m vertical seemed to be better - but not by
much! At the same time, though, it's worth noting that the base of the GP
antennas.
If anyone can offer advice on how to do the best job of setting up and
collecting
the data from the RBN please jump in. One thing I know is to collect as much
test data as we can
so our results aren't based upon only one or two tests.
73,
Bob
K6UJ
On Dec 15, 2012, at 1:03 PM, Jim
Count me in too.
Can you give me a senior ham discount ? I just turned 65.
Can you also contact the ARRL LOTW group and update my countries total after
logging me in ?
thanks so much
Bob
K6UJ
On Dec 4, 2012, at 7:08 PM, Gary Smith wrote:
I'm in as well. Do you take CC or PayPal?
Gary
here is a supplier
http://www.l-com.com/item.aspx?id=5413
Bob
K6UJ
On Dec 3, 2012, at 7:24 PM, Bruce wrote:
When using a Ameritron remote antenna switch with SO-239 fittings, does
anyone know a supplier for female F fitting to PL-259 adaptor ?
Thanks,
73
Bruce-K1FZ
I know the feeling! Not sure if you are in the log...
Hope you made it !
I havent been successful yet with making a contact but there is still a week to
go.
It is great to see a DXPedition put emphasis on 160 and 80 for a change !
73,
Bob
K6UJ
On Nov 11, 2012, at 7:04 PM, Gary Smith
Tom,
I will be interested to see what the solution(s) will be for the BC station
interference.
Wanted to thank for the reference to the impedance problem calculators. They
are great!
73,
Bob
K6UJ
On Nov 2, 2012, at 2:21 PM, Tom Boucher wrote:
A ham friend asked me to design
Paul,
Here is a handy on line calculator to help you determine the approx wire length.
You can play with putting in different freqs and see how much the wire length
changes.
I believe with frequency changes of 10KHZ the wire length changes by about one
foot.
So if it is resonant at 1.800 and
I hear what you are saying Guy.
Every vertical installation is a unique situation.
I dont have enough technical knowledge to determine
when my vertical antennas could do without a common mode choke.
I plan to continue using a choke on all my verticals to be safe.
73,
Bob
K6UJ
On Oct 20
If you try the K6STI low noise loop please let us know your results. I have
tried a number of low noise receiving loops, currently
am playing with a Waller flag. The K6STI loop is very interesting, I may try
it myself also.
73,
Bob
K6UJ
On Oct 2, 2012, at 11:52 AM, Tom W8JI wrote
Tom,
FWIW, I have been following this discussion and will agree that your intended
points somehow get changed.
Also, I totally agree with your statement when multiple things are changed in
a randomly cluttered environment it is impossible to
single out a single factorI am guilty of making
wow, I had better get my ### in gear and finish getting my inverted L back up.
thanks Herb,
Bob
K6UJ
On Sep 10, 2012, at 2:58 PM, Herb Schoenbohm wrote:
Just spoke to the 10 meter NH8S operator and he told me that as soon as the
sun goes down they will be on TB till the sun comes up. He
hihihi !
Bob
K6UJ
On Sep 10, 2012, at 7:06 PM, John Morris wrote:
Bob, don't worry about the inv-l. From where you are, a loaded window
screen should work just fine.
Good luck/73,
John, W4GD
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com
)
but now no problems.
I watched a DirecTV guy one day using his compression tool and realized that is
what I should use !
Bob
K6UJ
On Jul 13, 2012, at 1:08 PM, Tom W8JI wrote:
I also use phono connectors on some older radios. I'd prefer to substitute
BNC connectors but I don't want
wouldn't it be more fitting to say it has reached saturation ? :-)
Bob
K6UJ
On Jul 13, 2012, at 4:48 PM, David Raymond wrote:
This thread is beginning to wear thin. 73. . .Dave, W0FLS
- Original Message -
From: Jim Brown j...@audiosystemsgroup.com
To: topband
I'm with Bill, I still use external drives for backups for the same reason,
but am tempted with the cloud
Maybe our worries are unfounded ? Do the cloud systems back up the data (on
external hard drives, :-) ?
Bob
K6UJ
On Jul 6, 2012, at 4:59 AM, Bill Cromwell wrote:
On Fri, 2012-07
antenna during receive ? sigh I guess the idea is to
make the xmit antenna non resonant anywhere near
the operating freq during receive.
Bob
K6UJ
On Jun 17, 2012, at 8:03 AM, W2XJ wrote:
There is no single solution for detuning an antenna it depends on
electrical
to send you 5.
Let me know.
73,
Bob
K6UJ
On May 7, 2012, at 8:01 PM, all...@dejazzd.com all...@dejazzd.com wrote:
I've worked some DX who will not accept green stamps, but will accept IRCs.
I checked many post officesin our local area and no one has them anymore.
When I tried to go
thanks guys,
I will experiment with the top loading and also pulling the bottom away to a
wider angle
and see how it goes.
73,
Bob
K6UJ
On Jan 7, 2012, at 8:17 PM, k...@voyager.net wrote:
Bob:
The simple answer is Yes.
I remember the article on the loaded delta loop but have never
lot.How tall is your tower?
73, Guy K2AV
On Sat, Jan 7, 2012 at 10:08 PM, Bob K6UJ k...@pacbell.net wrote:
The reason I am trying a horizontally polarized delta loop is because I
had a vertically polarized delta
strung from the tower and it was too noisy. The tower was reradiating
Eddy,
GC makes Corona dope which I believe is the same thing as Glyptol.
take a look :
http://www.alliedelec.com/Images/Products/Datasheets/BM/GC_ELECTRONICS/796-4335.PDF
Bob
K6UJ
On Dec 24, 2011, at 7:53 AM, Eddy Swynar wrote:
Hi Guys,
Does anyone know of a good substitute
have RFI issues. They
sent me a new receiver in a few days and no more problem.
I have tried doing sleuthing with a portable AM radio but it wasn't effective
at all, the AC lines conduct and radiate the noise so it is hard to nail down.
Hopes this helps and hope it is in your own home !
73,
Bob
.
http://store.rlham.com/shop/catalog/product_info.php?products_id=66844
73,
Bob
K6UJ
On Dec 15, 2011, at 7:17 AM, Joe Subich, W4TV wrote:
On 12/15/2011 7:27 AM, W2RU - Bud Hippisley wrote:
Of course, a grounded, shunt-fed, top-loaded tower isn't exactly the
same as a full-size half
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