I would like to thank everyone who replied to my question both in PMs and
in the respective forums. As many of you know, I have been making cables for
years professionally but this one, like connectorizing RG174, stumped me.
The issue is getting compression F connectors on the PE coated RG6 I
At 08:25 AM 12/15/2012, Craig Clark wrote:
I did speak to Lee at Hi-Z yesterday and he warned me about substandard
quality F double females. He has had terrible problems with them.
Which brands/types are the good ones? Maybe some of mine need replacing...
BTW, I don't think I've ever met a
Hi Guys,
Many thanks to one all for sharing your ideas experiences with the two-wire
bi-directional Beverage antenna with me...it's quite obvious that there's a
wealth of know-how and experience out there in such matters.
The jury is still out here re. the antenna's adoption into VE3CUI -
Craig, what does lateral mean here - parallel to or perpendicular to
the length of the cable?
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
On 12/15/2012
That is quite an improvement. I had to have dropped the base impedance from
400 ohms to 40 ohms for it to do that.
Dave WX7G
On Fri, Dec 14, 2012 at 1:12 PM, Carl k...@jeremy.mv.com wrote:
A ground screen mesh extending out at least 25' from the base would
reduces losses considerably
Read the N6LF radial papers and you will see that 1/8 wavelength radials
are about as good as one can do. I use #14 stranded copper THHN wire
because it is easy to work with.
But how good can we get? For a 30' base loaded vertical I have 90 radials
having an average length of 18 ft. The ground
Mike that QTH looks alot like the Great Salt Lake of Utah where I have
operated a few 160 meter 'tests running a balloon vertical.
Dave WX7G
On Fri, Dec 14, 2012 at 9:52 AM, Michael Tope w...@dellroy.com wrote:
On 12/13/2012 3:14 PM, Tom W8JI wrote:
Somehow they thought moving the
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 it to
be about equal to my half-wave vertical dipole for 40m. (Center fed through
a home-made 1:1 W2DU style current balun)
Charlie, K4OTV
Well, Carl
Your thoughts on radials are pretty much like mine! For those of us with
limited space, another way to get the 130' elevated radials into limited
space is to bend them. I've had really good success on 160 by doing that
under and inverted L (about 70-80 feet vertical) I try to arrange
Wow, Dave!
That sounds great!! Could you support a vertical 1/2 wave for 160 with a
balloon? You could end -feed it at the base through a 1/4 wave of 450 ohm
ladder line and it would be a FEARSOME 160 antenna! And the whole radial
issue goes away!! I've operated a vertical 1/2 wave for 40m
I did speak to Lee at Hi-Z yesterday and he warned me about
substandard
quality F double females. He has had terrible problems with them.
In what respect are they sub-standard? What kind of problems?
There is so little that could be defective if the center conductor of
the coax is the right
On 12/15/2012 6:52 AM, Charles Bibb - K5ZK wrote:
Which brands/types are the good ones?
Amphenol, Amphenol, and Amphenol. Also, the old MIL-spec stuff that can
be found at most hamfests when OTs clean out their basements.
The shiny new connectors and adapters sold by vendors at hamfests
Pete
Lateral or along the axis of the coax.
I was confused too at first when Joel told me what to do.
Craig
Craig Clark K1QX
QX Electronics
PO Box 209
107 Fitzgerald Rd
Rindge NH 03461
(603) 899-6959 office
(603) 520 6577 cell
___
Topband
I also have a 40M GP with 4 elevated resonant radials 6 above the ground.
I will be putting up a vertical dipole for 40M center fed with a choke balun
for comparison on DX and
will compare with the RBN and see what I learn.
Has anyone on the forum tested these two 40M antennas using the
I just posted some pictures of my take on F barrel quality
on the Hi-Z website. You might have to refresh the page
as it is just now posted. YMMV
Lee K7TJR OR
http://www.hizantennas.com/f_connector_quality.pdf;
___
Topband reflector -
Charlie,
I will post my results. I had a vertical dipole up before and now am using the
40M GP.
The vertical dipole seems to be the best performer for DX but what does that
mean, hihi.
I thought I would make a table with short path, long path etc. and switch to
each antenna using the RBN.
From: charlie-cunning...@nc.rr.com
Could you support a vertical 1/2 wave for 160 with aballoon?
You could end -feed it at the base through a 1/4 wave of 450 ohm
ladder line and it would be a FEARSOME 160 antenna! And the whole radial issue
goes away!!
I've operated a vertical 1/2
Amphenol F connectors? Whoah!
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
On 12/15/2012 12:35 PM, Jim Brown wrote:
On 12/15/2012 6:52 AM, Charles Bibb
Don,
a 36 helium balloon filled to 32 is enough to lift 130' of #26 wire in no
wind. It doesn't take much wind to blow it horizontal. A half wave vertical
suffers more as it is blown down so I think it's best to fly 130' at the
most. Flying the balloon from a 40' or taller mast would allow the
On 12/15/2012 12:03 PM, Donald Chester wrote:
From: charlie-cunning...@nc.rr.com
Could you support a vertical 1/2 wave for 160 with aballoon?
You could end -feed it at the base through a 1/4 wave of 450 ohm
But feeding a half wave vertical with the base near the ground
still results
But feeding a half wave vertical with the base near the ground
still results in substantial ground losses without a radial system.
Don k4kyv
And this statement is based on what? Publications, measurements,
modeling?
I have built a number of 1/2 wave verticals without radials and
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 it
to
be about equal to my half-wave vertical dipole for 40m. (Center fed
through
a home-made 1:1 W2DU style current balun)
I'd expect that.
There is no magic about 120 radials, and long before 120 radials are reached
the increase in field strength pretty much stops.
At my house around 30 radials or so, about 1/4 wave long, go flat on
efficiency increase on 160 meters.
I could have a million radials and it would be
That is quite an improvement. I had to have dropped the base impedance
from
400 ohms to 40 ohms for it to do that.
Things are often magic when we rely on feelings or emotions to measure
decibels.
___
Topband reflector - topband@contesting.com
I am very interested in the comparison.
I am almost daily on 40m SSB at about 15:00 for LP with a couple of friends.
The San Diego area is also good for SP a bit later.
RBNs in Europe most of the time will probably not copy you on the LP.
Most RBN use poor antennas and the band is still crowded
One thing I've wondered: are elevated radials more likely to pickup local QRN
than those on the ground, or buried? The on-ground 160M loop antennas I've used
for reception seemed quieter here than those that were elevated 15-20'.
Before my 160 tree blew down this Fall and took the Inv-L
Which brands/types are the good ones? Maybe some of mine need
replacing...
BTW, I don't think I've ever met a substandard double F female or a
substandard double D, for that matter. ;-)
73,
Charles - K5ZK
Charles,
I'm not sure which brands are bad, but I've been pretty lucky and not run
Charlie,
Yeah I see what you mean they each have a different take off angle lobe.
I will run a run a plot with EZNEC of each and see what they show.
I have changed/ started a new subject title for this activity we are
discussing, we
have taken off in a separate direction than the original
Jim,
I will post the results here on the reflector. Note the changed subject for
this thread
to cover this activity. We have drifted away from the original thread.
Yes, please share your results on the 80 dipole and inverted L !
The RBN is a great tool available to us for testing our
On 12/15/2012 5:13 PM, Charlie Cunningham wrote:
Well, Rick, for me, the 450 ohm line was cheap, available and weatherproof!
The trouble with the 450 ohm line is that you have a balanced line
with an unbalanced load. You would like to put a balun or common-mode
choke at the antenna end, but
Not 160 but I worked him on 12M on Dec 5
Gary
KA1J
Re: J6/N7QT
I worked him around 02z on the 10th on 80 CW and asked about 160 and
he said 'probably tomorrow' but I never heard him that night and I
stayed home from an event my wife wanted to go to as well to look for
him ... ouch He was
Oh really? What about CCS against gold with silicone dielectric compound to
seal out moisture, Tom?
I haven't used those gold-plated connectors yet. Maybe I should return them
for a refund?
73, Mike
www.w0btu.com
On Sat, Dec 15, 2012 at 8:37 PM, Tom W8JI w...@w8ji.com wrote:
The last thing
On 12/15/2012 12:04 PM, Pete Smith N4ZR wrote:
Amphenol F connectors? Whoah!
Nuts. I didn't read carefully enough. Again. Thanks Pete. I was
thinking UHF.
73, Jim K9YC
___
Topband reflector - topband@contesting.com
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