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Elevated-Mount Verticals
For verticals that are mounted well off the ground, usually on a roof or small tower, the radial system must
also be elevated. In these cases, mount the VFCC on the mounting mast
UNDER
the radials close to the feed
point of the raised vertical. The radial wires should extend away from the vertical at a 30 to 60 degree down
angle and should not touch the VFCC. Attach the terminal of the VFCC that would normally go to the Radial
Plate to same mounting point where the radial wires are attached. Sometimes, as the coax feedline travels
through the near field of the antenna, the current can be re-introduced onto the feedline. In that case, a DX
Engineering
DXE-FCC050-H05-A
Feedline Current Choke should be inserted into the feedline after it exits
the near field of the antenna or at the station end of the feedline.
Other Applications
When using the DXE-VFCC in other applications such as an Inverted-L antenna, connect the terminal
nearest the
Red "
D
"
in
D
X ENGINEERING
on the VFCC label to the feedpoint of the vertical antenna.
The terminal nearest the
Black "
X"
in
D
X ENGINEERING
on the label connects to the ground radial
system.
Your existing coaxial cable from your radio connects directly to the SO-239 on the VFCC. There is a spare
wing nut with hardware next to the SO-239.
DO NOT ground the case of the VFCC
.
