Topband: Length of Beverages

[donovanf at starpower.net]

Hi Bill, 

Longer Beverages provide narrower beamwidth, which reduces QRM 
or QRN that would be received through the main lobe of a shorter 
Beverage. (just like adding elements to a Yagi narrows its beamwidth). 

A very effective technique for improving the front-to-back performance 
of Beverages is to use the DX Engineering NCC-1 variable phase controller 
with a pair of Beverages or a two wire bidirectional Beverage. The 
NCC-1 develops a deep steerable null off the back of the Beverage pair. 

Do you have room for an 8-circle array, either the 200 foot diameter array 
with 106 degree phasing originally developed by Hi-Z Antennas or a 350 
foot diameter array with W8JI broad side, end fire (BSEF) phasing? 

Arrays of short (20-25 foot) verticals provide significantly less high angle 
response than Beverages which can be a significant advantage especially 
with storm induced static crashes. 

You can never have too many antennas... 

73 
Frank 
W3LPL 



----- Original Message -----

From: "Cqtestk4xs--- via Topband" <topband at contesting.com> 
To: topband at contesting.com 
Sent: Saturday, July 26, 2014 3:31:41 PM 
Subject: Topband: Length of Beverages 

I'm planning on putting up some Beverages for the fall season...primarily 
for use on 160. Unfortunately, they have to be taken down again in the 
Spring for crops. The good news is they can be any length up to around 
1200-1300 feet. 

Many have said that around 880 ft is the "sweet spot". Is there any 
advantage to going up to around 1300 feet? 

Bill K4XS 
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