[TowerTalk] modeling compare: 80M, 2EL vs 4SQ

[Jim Thomson]

Date: Sun, 15 Mar 2015 07:03:00 -0400
From: Pete Smith N4ZR <n4zr at contesting.com>
To: towertalk at contesting.com
Subject: Re: [TowerTalk] modeling compare: 80M, 2EL vs 4SQ

I think both John's and Gary's commemnts square with the series on 
radials that was on NCJ a few years ago. The message I took away from 
those articles is that if your actual ground characteristics are good, 
the improvement with radials, no matter how many, will be quite limited, 
while if your ground isn't good to start with, radials can make a lot of 
difference in the pattern, especially at low angles.

73, Pete N4ZR

##  4 sq is wonderful...provide u have real estate to install it all.  w2pv removed his 
4 sq since the grnd conductivity was lousy. 

##  check out steve, VE6WZ site.   He is on a  tiny 50 foot wide city lot.... and his 89 ft crank up
tower is only 14 feet  away from his  side fence.   So he made the hb 80m, 2 el yagi on a 28 ft boom. 
It only has 66 ft long, half size eles... coil loaded half way out.   yagi is up 100 feet.    He  works
Europe on 80m  SSB... like a machine gun.   b4 that, he had a f12 80m rotary dipole, also up 100 feet.  
Check out his website.  These days, with T bar capacity hats part way out each side,and  tornado 
drives at the center...  motor driven compressible .25 inch  tubing coils...u can have ur cake and eat it too.
Then the yagi  will cover the entire band easily, with max gain /fb  and flat swr.   10 pre-sets on the
coils..then manual tune between pre-sets with the digital readout turns counter. 

Jim   VE7RF