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BevFlex-4X Installation Manual Rev 2.23 November 2019
Prior to installation, determine the directions you want the antenna to cover. For example, in the Northeast USA, pointing the
antenna element axis at 45 degrees in the forward direction and 225 degrees in the reverse direction, allows optimum
reception from Europe or the South Pacific areas. The uni-directional receiving pattern of the antenna will typically be about
60 degrees wide at the -3dB response points. Antenna directivity patterns will typically allow reception well off the primary
axis of the antenna, which, unlike a dipole antenna, is off either end of the BevFlex-4X antenna element.
GENERAL INSTALLATION INSTRUCTIONS
In addition to the BevFlex-4X kit, you will need to have the following items as part of your Beverage antenna installation:
RG-6, 75 Ohm, CATV, coaxial cable:
Sufficient RG-6 coaxial cable for use as the actual antenna element, plus (2)
separate, feed lines from the feed point anywhere along the antenna element to your receiver location. Any good quality RG-
6 coaxial cable with or without a messenger support wire can be used. (1000 ft. spools of RG-6 cable can be obtained at
local builder’s supply stores or over the Internet.)
Use of 50 ohm coax is not recommended for either the Beverage antenna element or the feed lines back to the shack. The
BevFlex-4x is designed for 75 ohm coax. Using coax with a different impedance will negatively affect the performance.
Ground rods:
You will need one 4 ft. copper clad, steel, ground rod
(1/2” or ¾” copper water pipe can be used in soft
ground), a wire clamp, and a short piece of #12 or #14 hook up wire for each end of the BevFlex-4X.
Cable supports:
You will need insulated support devices to hang the RG-6 coaxial cable from trees or other supports.
Simple plastic cable ties or electric fence wire insulators work well for this application.
Weather proof Coaxial Connectors:
You will need at least (8) outd
oor type “F” connectors and the proper tools to attach
them to the coaxial cable. Weatherproof, compression type, “F” connectors with “O-ring” seals are recommended.
The application of a small amount of silicon grease to the threads on each of the “F” connectors during assembly is also
recommended to keep the connections weatherproof and free of corrosion. Wrapping the connections with silicone rubber
type fusion tape is recommended for a good weather tight seal that is easily removable for future repairs.
Figure-5 “F” Connector Installation
