Wire 4-square summary - Radial length

[W8JITom at aol.com]

In a message dated 96-09-24 10:22:02 EDT, you write:

>based the work on Moxon.
>

Was that really spelled with an X?
  
>That's interesting.  Everyone I know using 1/4 wave elevated radials is
>doing so with a great amount of success. 

Every year it gets worse and worse, it seems like it gets worse by the cube
of time passage. 

Brown, Lewis and Epstein spent thousands of hours studying radials and
counterpoises and making field strength measurements on real systems. Their
data is well documented, and it shows  60 1/4 wl radials with NO ground
screen is within a dB of what theory predicts as perfect. 113 radials .437 wl
long (what they measured as 1/2 wl with the wire laid on the ground) is
within a fraction of a dB of perfect. 

Then a Ham comes along, never makes ONE FS measurement, and claims insulating
a radial system improves things.

A few years later, we are told only four or six wires works. Again without
direct field strength measurements.

A few months ago, ther was an article claiming ONE radial would deliver 100%
efficiency.

A few weeks ago, I read where a 1/10 wl long fractal radial system would beat
a 1/4 wl radial solid copper disk.

Today I think I just read where a loading coil is about all we need, but
maybe m eyes are playing tricks on me.

All of this of course without a single FS measurement in a direct comparison.

 
Faraday and Maxwell must be rolling over in their graves when they look out
at today's "scientists and scholars". We know everything without any need to
measure anything.

73 Tom

>From dave at egh.com (David Clemons)  Tue Sep 24 20:41:42 1996
From: dave at egh.com (David Clemons) (David Clemons)
Date: Tue, 24 Sep 1996 15:41:42 -0400 (EDT)
Subject: The demise of N4BO
Message-ID: <Pine.LNX.3.91.960924153845.13901A-100000 at newman.egh.com>


Eric (K6GV) says:	"Bob, N4BP, now has the floor."

Arghh!  I had NV6P in my log!  Oh wait, that's not bad.  Now I have my 
double qso points again!

73, Dave Clemons K1VUT


>From rvhoeft at ingr.com (Hoeft, Roger V)  Tue Sep 24 20:38:04 1996
From: rvhoeft at ingr.com (Hoeft, Roger V) (Hoeft, Roger V)
Date: Tue, 24 Sep 1996 14:38:04 -0500
Subject: Thanks for info on the antenna farm
Message-ID: <c=US%a=_%p=INTERGRAPH%l=HQ1-960924193804Z-10104 at hq15.pcmail.ingr.com>

Just a quick note of thanks to those who responded to my query about the
antenna farm at W0AIH / W0UC.  I saw 9 towers from I-94, but with 42 on
a 160 acre site, that's not a farm - that's a PLANTATION!!!

Any chance of getting the station info onto the contesting web site?

Thanks again.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Roger Hoeft
KA9EKJ
rvhoeft at ingr.com

Amateur Radio is a contact sport
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


>From seay at alaska.net (Del Seay)  Tue Sep 24 19:46:07 1996
From: seay at alaska.net (Del Seay) (Del Seay)
Date: Tue, 24 Sep 1996 11:46:07 -0700
Subject: CATV Hardline Vf
References: <9609241611.AA13029 at hp-and2.an.hp.com>
Message-ID: <32482C6F.B9D at alaska.net>

Tony Brock-Fisher wrote:
> 
> Anybody know the velocity factor for CATV Hardline? I just
> picked up a nice hunk of 7/8" diameter, foam dielectric with
> black poly jacket...
> 
> -Tony, K1KP, fisher at hp-and2.an.hp.com

Probably .88 - if you can find a mfg marker or p/n, I can get it
more closely defined.  de KL7HF

>From km9p at contesting.com (Bill Fisher KM9P)  Tue Sep 24 20:58:10 1996
From: km9p at contesting.com (Bill Fisher KM9P) (Bill Fisher KM9P)
Date: Tue, 24 Sep 1996 15:58:10 -0400 (EDT)
Subject: Tuning the 4-square...follow up
Message-ID: <Pine.BSI.3.95.960924155436.12834A-100000 at paris.akorn.net>


Tim Duffy, K3LR, pointed out a mistake in my previous message regarding
tuning the 4-square.  My message said to ground the radiator to the
radials.  That is incorrect.  You want the radiator to float.  So
disconnect the radiator (vertical wire in my case) from the feedline and
it will be floating and not seen by the vertical you are trying to tune.


Thanks to Tim for pointing that out.  I must have misunderstood Tom when I
was talking to him about it.  

73

Bill, KM9P - Still Quarter Century Applicance Operator!

Hey you don't have to be smart... just have a lot of smart friends!