I deployed the JK Bevflex 4 for this winter Topband season. First deployment
was as a BOG, over a rock cliff. This particular location was not conducive to
any BOG, so I changed the configuration to a beverage. I was very pleased
with the way the beverage configuration performed. It was oriented NE/SW.
Although this initial configuration was short, just over 300', the Bevflex 4
compared quite favorably with a conventional 600' NE oriented beverage. These
antennas were spaced far enough apart to phase through my DXE NCC=1 box, and
the dual antennas worked quite well.
The front to back ratio was quite excellent on the Bevflex 4, much better than
my last attempt at deploying a bi-directional beverage. There was no
detectable difference in the output level of the antenna in either direction.
The feature of being able to feed it at any point in the antenna is very
convenient.
Next season I will deploy the Bevflex 4 in a different location E/W oriented,
and it will be about 600' long.
Regarding the original question, beverage performance over down sloping
terrain, I have had excellent results with beverages and BOGs running down
slope. I agree with K3BU's assessment of the downslope effect.
73 Charlie N8RR
________________________________
From: Topband <topband-bounces@contesting.com> on behalf of Ned Mountain
<ned.mountain@mindspring.com>
Sent: Thursday, April 13, 2017 6:35 PM
To: topband@contesting.com
Subject: Topband: Bev-Flex 4 Beverage system
I have already received several e mails since my posting. The data sheets
and specs are on the JK antenna website. (jkantennas..com)
Here is a link to a video presentation I did some time back to one of the
local clubs regarding the system.
https://www.youtube.com/watch?v=HZiQXihUvIo
[https://i.ytimg.com/vi/HZiQXihUvIo/hqdefault.jpg]<https://www.youtube.com/watch?v=HZiQXihUvIo>
An Improved Beverage Antenna<https://www.youtube.com/watch?v=HZiQXihUvIo>
www.youtube.com
Ned Mountain
<https://www.youtube.com/watch?v=HZiQXihUvIo&feature=youtu.be>
&feature=youtu.be
Ned
WC4X
Ned Mountain
ned.mountain@mindspring.com
770 823 4205 (M)
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