DX Engineering DXE-RCA8C-SYS-4P, Manual

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of the optimal monoband and multi-band frequency coverage of the Eight Circle Array in
sections entitled
Array Performance , Site Selection and Sizing the Array .
2. Do you prefer a system that provides the benefits of the DX Engineering Active Matching
Units but allows you to experiment with your own tubing or whip elements? You may want
to review the manual for the
DXE-RCA8C-SYS-3P .
3. Are you ready to build your system? Proceed!
The
DXE-RCA8C-SYS-4P Receive Eight Circle Array Packages includes:

DXE-RCA8C-1 Receive Eight Circle Array Controller

DXE-CC-8A Special eight position Receive Eight Circle Control
Console modified to p12 Vdc for powering the active antennas.

DXE-SSVC-2P Stainless Steel V-Clamp for mounting the RCA8C-1
Receive Eight Circle Array Controller to a mounting post between 1" and
2" OD

DXE-ARAV4-8P (Eight) Active Matching units with Internal
Disconnect Relays, Aluminum Vertical Elements, Insulated Mounting
System and Stainless Steel V-Clamps to be used with customer supplied
ground rods for mounting

DXE-6UF-1000
(Two) 1000 Foot Rolls, Coaxial Cable, 75Ω, F6 Flooded Cable

DXE-CPT-659 Coaxial Cable Prep Tool for RG6, F6 75Ω Coaxial Cable, w/extra blade

DXE-SNS-CT1 Snap-N-Seal
®
Compression Tool for 75Ω coaxial cable connectors

DXE-SNS6-25 Package of 25 Snap-N-Seal
®
Connectors for 75Ω F6 coaxial cable
Additional Parts Required, Not Supplied with the DXE-RCA8C-SYS-4P

One additional DXE-6UF-1000 75Ω Coaxial Cable that may be required for the main
feedline from the station to the array

Five-Conductor Power and Control Cable. The modified DXE-CC-8A Control Console
interfaces to the DXE-RCA8C-1 Eight Circle Array Controller through a 5-wire cable to
select one of eight directions and to power the eight active elements. Economically priced
DXE-CW9S is a 9-conductor control wire which may be used allowing the user to use the
spare wires to double up on power and return lines for current carrying capability.
Eight Circle Layout
The optimized array for single band performance has vertical elements
arranged in a circle with a
radius of about 175 feet for 160 meters, or 84
feet for 80 meters, or 44 feet for 40 meters. A two-band array for 80 and
160 meters should also have a radius of about 84 feet. See the
Theory of
Operation sections for exact dimensions, options for wider frequency
coverage and guidance in choosing the best orientation.
The default direction of the array with no voltage (BCD 000) places
elements 1 and 6 in front and elements 2 and 5 at the rear, with pairs of
lines through two opposite vertical element pairs (tangents) that point
toward the receiving directions.