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@contesting.com>
To: topband@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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