Vertical Element Feedlines - DX Engineering DXE-R8C-SYS-V3 Manual

any DX Engineering array, and specifically designed for the DXE- RG6UFQ -1000 flooded cable
are the DXE-EX6XL-25 F connectors, which contains 25 quad shield connectors; enough for the
entire array plus spares. The DXE-EX6XL connectors cannot be installed with normal crimping
tools or pliers. The DXE-SNS-CT1 Compression Tool for DXE-EX6XL 75Ω Coax Connectors is
an essential tool for proper connector installation.
Lightly coat threads of F connectors with pure clear non-hardening silicon dielectric compound,
such as PTX-22058 Permatex Dielectric Grease, to improve reliability of electrical connectors. This
will lubricate threads, seal connector threads from water ingress, and reduce chances of unwanted
bonding or welding of connector threads. If dielectric grease is not used, the potential for damage
to the various connectors may result and is not covered under warranty.
Note: DO NOT use pliers or other tools to excessively tighten the type F connectors; they
do not require high torque to make a good connection. F connectors are very
reliable strong connectors for their size, but carelessness can damage them.
Excessive tightening torque can loosen the chassis mounting-nut, allowing the
connector body to rotate and fracture the mounting tabs on either installation or
removal of the connector. F-connectors require modest torque, typically 6-12 inch-
pounds. 20-30 inch-pounds are FAR too high. That value, although commonly used,
is just wrong. Damage to the various connectors may result and is not covered
under warranty. Use a tool such as the DXE-CIT-1 F Connector Tightening Tool.
Additional weatherproofing protection can be provided when using the PTX-22058
Permatex Dielectric Grease on all coaxial connections. Dielectric grease is ideal for
keeping moisture from entering your coaxial connectors. It also acts as a lubricant
allowing easy connector removal by stopping corrosion of electrical connectors.

Vertical Element Feedlines

Use 75Ω coaxial cable from each antenna element to the
RCA8C-1. The eight feedlines from the RCA8C-1 to the
elements can be any length needed to accommodate the size of
the array, but must all be the same physical length, velocity
factor and type. Note the orientation and numbering of the
elements by using Figure 6. Be sure the appropriate antenna
element is connected to the proper ANT connector on the
RCA8C-1.
Coaxial Connections to the RCA8C-1
- 12 -
Figure 6 - Vertical Elements