[Antennas] recommendations for short low dipole

[David J. Ring, Jr.]

This new informatin from Sam would clarify things a bit.

It seems he has the 12 foot antenna on the second floor roof, but now, as he 
explains that he needs a "horizontally polorized rotatable antenna for 
nulling out noise".

So he specifically has the answer.

I've mentioned the phase nullers and he has yet to even indicate that he 
acknowledges his understanding of this.

Sam, if you were to say:

I have a 12 foot antenna on my apartment building which is 2nd floor level 
48 by 27 feet flat tar and gravel roof, but it produces too much noise on 
receive.  What I need is a way to receive.  I've got permission from the 
landlord for a maximum height of 3 feet for an additional receive antenna. 
The landlord says I can rotate this if need be.  The noise that I receive is 
about S9 which makes two way contacts very difficult.

I bet people would grasp what you were speaking about.  You confused the 
issue by the mention of the 12 foot antenna without saying where it was, and 
why you needed an extra antenna.

Again my answer would be that the only way to get the noise down in this 
extremely noise environment is by using a noise nuller phasing box such as 
that which MFJ sells.

Any unpleasent perceptions on your part could have been avoided by at least 
waiting until your first request was processed.    You responded to my 
direct email to you hours after you sent the message which seemed to be 
complaining about the group's response.

This was again a miscommunciation on your part as it was interpreted as 
being an attack on the goodness of this group when others had gone to the 
effort of trying to help you.

In all of this, you've come off badly.  I would wager that people's 
perceptions of you are much worse than who you really are.

I would recommend a sincere reflection on this as if it is a problem for 
you, as you say it has been in the past, and it very well may be so again 
and hurt your relationships with others, and worst of all, result in a 
terrible waste of other people's time simply because of your poor 
communication skills.

I would suspect that you will blame others for your own shortcomings which 
would be a shame because much if not all of any unprofitable communications 
in this matter could have been eliminated by better communications skills on 
your part.

However, I would be less a friend for not pointing it out - hopefully gently 
and with some tact.

I remember the Chinese proverb:  "Man who attacks friends, leads lonely 
life."

Wishing you well,

73

David N1EA

----- Original Message ----- 
From: "Sam Morgan" <ka5oai at cox.net>
To: "David J. Ring, Jr." <n1ea at arrl.net>
Sent: Thursday, July 27, 2006 7:05 AM
Subject: Re: [Antennas] recommendations for short low dipole


David J. Ring, Jr. wrote:
> So where is this 12 foot antenna located?  I thought you had said 12".
>

on a 2nd floor, 48 feet by 27 feet, flat, tar and gravel roof  with 2 heat 
pumps
3feet by 3feet located centered on BOTH 27 foot sides.
the vertical antenna is in the center of the roof

what I need now is a horizontally polarized, rotatable, antenna for nulling 
out
noise, the vertical talks great but is crap on receive. S9 noise floor and 
then
add man made stuff that a noise blanker will not kill. But that I may be 
able to
at least attenuate off the null points of a horizontal antenna

This rotatable antenna can be no taller than 36 inches off the same type of 
tar
and gravel 2nd floor roof. (another seperate roof so will not interfere with 
the
current vertical)

I also don't think I would be able to put anything longer than perhaps 20 
feet
end to end up to rotate.

> It
> is best to spell out foot and inches rather than use apostrophe and
> quotation marks as you can see especially with the squinting aged.
>
yeppers, I have had a number of folks tell me this, thanks for the 
confirmation.

snip

> it's already 12 feet tall
> 36" mast
> 6"x6" coil
> 102" stainless whip
> with a hs-120 high sierra
> (6 pieces of  2 foot in length stingers)
> at 13" (2 times the diameter of the coil) above the top of the coil
>
> sixteen 13 foot radials
>
> approximate efficiency of about 40% or more
> best I could get with the land lord saying  it hat to be 36" tall
> (to the top of the coil)
> and then getting him to allow the 102" stinger above that
>
> we won't talk about the $100,000.00 renters liability insurance policy I 
> had
> to
> get to finalize the deal

-- 
GB & 73's
KA5OAI
Sam Morgan


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