using an MFJ-941E tuner on all bands?
 

"Cecil Moore" wrote in message
...
James Barrett wrote:
I tried using the demo version of EZNEC, but haven't figured it out yet.

Time to diagnose that problem. :-)

Anyways, I'm not sure yet what to expect as far as making contacts.

At this low of the sunspot cycle, don't "expect" anything
above 14.35 MHz to work. :-) 40m CW is my favorite band
right now.

Ok, having said all of that, I have some ideas for shorter dipoles that
can hang north/south. So there is much experimenting in my future. :-D

Hang your long dipole E/W. Hang another dipole in parallel
N/S as long as you can make it. Use an antenna tuner. Enjoy,
i.e. put something in the air and be patient.
--
73, Cecil http://www.w5dxp.com

I think you made a typo error "Hang your long dipole E/W. Hang another
dipole in parallel N/S"?? How can 1 wire be E/W and another be parallel N/S
????????
73, Howard W3CQH

using an MFJ-941E tuner on all bands?
 

John Doe wrote:
I think you made a typo error "Hang your long dipole E/W. Hang another
dipole in parallel N/S"?? How can 1 wire be E/W and another be parallel N/S
????????

No problem. Ever heard of a fan dipole? Run 130 feet east
and west and run 60 feet (or whatever) north and south.
--
73, Cecil http://www.w5dxp.com

using an MFJ-941E tuner on all bands?
 

On Wed, 28 Nov 2007 23:35:14 -0800, Richard Clark wrote:

Better to back off from my 5 and instead consider:
http://home.comcast.net/~kb7qhc/ante.../Cage/cage.htm which
comes to the same thing, but not at the expense of forever re-tuning
each wire by band.

Hi Richard,

Was this antenna ever built?

-73 de Mike N3LI -

using an MFJ-941E tuner on all bands?
 

On Sun, 02 Dec 2007 17:46:56 -0600, Mike Coslo
wrote:

On Wed, 28 Nov 2007 23:35:14 -0800, Richard Clark wrote:

Better to back off from my 5 and instead consider:
http://home.comcast.net/~kb7qhc/ante.../Cage/cage.htm which
comes to the same thing, but not at the expense of forever re-tuning
each wire by band.

Hi Richard,

Was this antenna ever built?

Hi Mike,

I built a vertical dipole version of it, but it didn't have enough
wires in the skeleton (6 not 16) to justify keeping it up.

A similar study of the discone at:
http://www.qsl.net/kb7qhc/antenna/Discone/discone.htm
reveals that geometery as well as fullness of the skeleton makes
considerable differences in performance.

I did a field day version of this with 8 wires, and it too showed a
lot of bare patches.

As I said, a lot of wire....

73's
Richard Clark, KB7QHC

using an MFJ-941E tuner on all bands?
 

Richard Clark wrote:

...
http://www.qsl.net/kb7qhc/antenna/Discone/discone.htm
...
73's
Richard Clark, KB7QHC

Giving credit, where credit is due, nice contribution. It has taken the
discone 30+ years to become "accepted", it does have unique uses ...
your previous post containing the .ez file for the broadband "fat
antenna" was also greatly enjoyed here. THANKS!

Warm regards,
JS

using an MFJ-941E tuner on all bands?
 

On Sun, 02 Dec 2007 21:14:21 -0800, John Smith
wrote:

your previous post containing the .ez file for the broadband "fat
antenna" was also greatly enjoyed here. THANKS!

Any of my designs is freely available for the asking if they don't
have access by a link.

Not many ask for the fractals.... (Talk about a lot of wire!)

If other's find this allusion cryptic, consider the Koch Quadratic at
20M:
http://www.qsl.net/kb7qhc/antenna/fr...%20Antenna.gif
being 3.25 dB better than a quarterwave vertical:
http://www.qsl.net/kb7qhc/antenna/fr...on%20Lobes.gif

The Vincent antennas compare miserably both in performance and visual
appeal (and I never had to use the word Gauss once to explain them).

As for other wideband antennas (examples will require scaling, and
this ups the ante in wire to where you would have to mortgage your
house to buy the copper):
http://www.qsl.net/kb7qhc/antenna/fr...omparisons.htm

73's
Richard Clark, KB7QHC

using an MFJ-941E tuner on all bands?
 

"Cecil Moore" wrote in message
...
Sal M. Onella wrote:
... and it does for me on 20 and 10. I don't know how many sets of
dipole
elements can be connected at the same time, but I think it's more than
the
two I have up there now. Richard gave the number five. That's why I
said
I'm going to try a set for 40m.

A fan dipole with elements for 40m and 15m doesn't
work well because of the resonant interaction
between those two elements of 0.5WL and 1.5WL.
Most hams I know use the 40m dipole also for 15m
operation with a tuner.

I don't seem to hear much on 15 and I've only made one contact on that band.
That was with a tuner on a non-resonant antenna. I don't plan to have
elements for 15, so I may have no issues. Thanks for the cautionary note.

"Sal"
(KD6VKW)

using an MFJ-941E tuner on all bands?
 

John Smith wrote:
Giving credit, where credit is due, nice contribution.

One thing that may be lost in the shuffle on this
newsgroup is that a lot of people make outstanding
contributions to our hobby. The problem arises
when someone starts to worship himself as some God's
gift to amateur radio. Those people know who they are.
--
73, Cecil http://www.w5dxp.com

using an MFJ-941E tuner on all bands?
 

Cecil Moore wrote:
John Smith wrote:
Giving credit, where credit is due, nice contribution.

One thing that may be lost in the shuffle on this
newsgroup is that a lot of people make outstanding
contributions to our hobby. The problem arises
when someone starts to worship himself as some God's
gift to amateur radio. Those people know who they are.

Yes Cecil, sometimes we become so involved in "friendly
debate/exploration" that we forget the "sound" of our words, well, at
least I do.

It'll all work out. :-D

Any good story/drama has an antagonist and a protagonist--heck, the
world is a stage and we must all play our parts ... or, thank gawd for
problems!

Regards,
JS

using an MFJ-941E tuner on all bands?
 

On Mon, 03 Dec 2007 21:59:03 GMT, Cecil Moore
wrote:

The problem arises
when someone starts to worship himself as some God's
gift to amateur radio. Those people know who they are.

Cecileo, forgive us for failing to recognize your great contributions
to humanity, but I am more concerned about my chances of losing your
salvation by knowing the others of who "they" are.

Is this the god-head? Are you attended by the holy RF Ghost? Is it a
reflection of your glory? If so, what is the phase angle and what
discontinuity did you hit when this reflection occurred? Do you and
this reflection exist independently, or is either of you bound to
disappear in less than a half cycle?

Is heaven like a lossless quarterwave shorted transmission line? So
many questions, and MORE, that I am sure would be answered if you
simple posted your URL to your scriptures.

best wishes,
with devotion,
inspired by your example,
full faith and true to your teachings,
ever humble and groveling at your magnificence so long misunderstood,
I remain anonymous so as to not profane this thread any longer.
thank you,
thank you,
please hear my prayers,
thank you.

p.s.
write when you find work.

using an MFJ-941E tuner on all bands?
 

James Barrett wrote:
Cecil Moore wrote:
It depends upon what you want your radiation pattern
coverage to be from your particular QTH. I orient my
130 foot dipole so that my radiation lobes point toward
the world's large land masses on 20m. The free demo
version of EZNEC available from eznec.com will tell you
what direction your lobes are pointing.

I tried using the demo version of EZNEC, but haven't figured it out yet.
I don't really know yet what I want my radiation pattern to be because
I've had an HF radio now for three weeks, and only a 10 meter dipole.

I would respectfully suggest that you don't need to worry too much
about radiation angle - yet. Sometimes we get so far into things that it
can become discouraging.

In any event, do go through the whole tutorial process at the beginning
of the manual.



Anyways, I'm not sure yet what to expect as far as making contacts.
Would I have a better shot from east or west, or would I have a better
shot north and south?

Here is one thing that relates a bit to that take off angle. As you go
up in frequency with that universal dipole, the antenna starts to get
"lobey". The radiation pattern is not the nice simple blob you get with
a halfwave dipole. It can get pretty interesting as you get higher and
higher in frequency.

So, I guess what I should have asked was, what would be the best
orientation for a dipole in New England in order to make contacts at
this time of year and at this point in the sun spot cycle.

So much depends on the frequency. The lobey pattern can make a dipole
less directional depending on frequency.

- 73 de Mike N3LI -

using an MFJ-941E tuner on all bands?
 

James Barrett wrote:

I tried using the demo version of EZNEC, but haven't figured it out yet. . .

Be sure to read the "Getting Started" section of the manual (Click
Help/Contents), and go through the "Test Drive" tutorial.

Roy Lewallen, W7EL

using an MFJ-941E tuner on all bands?
 

On 28 Nov, 23:35, Richard Clark wrote:
On Wed, 28 Nov 2007 22:54:55 -0800, "Sal M. Onella"

wrote:
... and it does for me on 20 and 10. I don't know how many sets of dipole
elements can be connected at the same time, but I think it's more than the
two I have up there now. Richard gave the number five. That's why I said
I'm going to try a set for 40m.

You are going to give Art apoplexy by crediting me!

No that is not true.I have been reading your exchange with interest
For the last few days you have been comunicating without adding the
side stuff. I just don't understand what has happened but the change
makes you out to be a more reasonable fellow. But then I have been
caught before when you finally let the trap spring
so I am not in any hurry
Art
snip