13
Four Square Layout
The array antenna elements should be arranged in a square, use
Table 2
for guidance in choosing
the best combination of frequency coverage and side length dimensions.
•
The diagonal corners of the square should point in the most desirable receiving directions.
Element 1 is the default forward element, Element 3 is the rear or null element.
•
Performance of the
RFS-2
can noticeably decrease if structures radiating even small
amounts of noise or signals are within 1-wavelength of the array
Figure 2 - Layout of the DXE-RFS-TS2P Four Square System
•
Measure side-to-side and then corner-to-corner to ensure the element locations are square.
•
Normally the
RFS-2
phasing unit is installed near the center of the four array elements, above
any standing water or snow line, with the connector side facing down. The placement of the
RFS-2
unit is not critical, however, the feedlines to each of the active elements must be equal.
•
If you mount the
RFS-2
on a wood post, it should be grounded to a separate ground rod.
System Operational Overview
The
DXE-RFS-3P
system is comprised of the
DXE-CC-8A
Control Console and the
DXE-RFS-2
Control Unit. These units interconnect and work together using factory default settings. If you
purchased only the
DXE-RFS-2
Control Unit, you must provide the power and switching voltages
to the
DXE-RFS-2
. Please refer to the appropriate tables and the configuration diagrams in this
manual for details.
The
DXE-CC-8A
Control Console supplies the n12 Vdc operational voltage as well as the
+12 Vdc BCD control voltage. The operational voltage powers the
DXE-RFS-2
Control Unit which
subsequently powers the active receive elements. The BCD switching voltages cause the
DXE-RFS-2
to change the receiving direction of the array.