Array Solutions Four Square Benutzerhandbuch - Seite 9
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Seite druckenThe above plots show the gain of this array over a single vertical of the same construction.
The plots have been normalized to demonstrate the 5.5 dB of gain achievable over a single
element. The take off angle in this system with this average ground quality is 23 degrees. But with
an excellent ground radial systems and better ground conditions it is possible to lower the angle a
few degrees.
Here is what this pattern looks like using the same system, same ground and the new optimized
delays. Remember that this is normalized to show gain over a single same type vertical.
We have increased the gain by 0.66 dB and the front to back radio by 6 dB or more!
This can be easily achieved with your controller by adding the optimization kit and adjusting the L
and C shunt reactance using an oscilloscope. Again, the ON4UN's "Low Band DXing" 5
is the reference on this technique.
Specifications
Construction
Power
VSWR
Gain
Directions
Electronic phasing
Phasing Options
Capacitors in networks
Weight and size
Thank you for purchasing this high quality phasing system.
www.arraysolutions.com
2611 N. Beltline Rd.,Ste 109
Sunnyvale, TX, 75182, USA
Corrosion resistant Aluminum metal box, painted and silkscreened
3+ kW CW / 6+ kW PEP
Less than 1.3:1 over the band of operation
5.5 dB over single vertical 6.16 dB optimized see theory
4 directions with an additional Omni-directional feature
Optimized Hybrid Coupler. An LC network for OMNI mode
Quadrature and Optimization Kit
Temperature stable high current RF capacitors – NPO
15 lb. ~11" x 7.5" x 3.625" relay box, 2" x 4" x 5" controller box
Phone: +1 214 954 7140
th
edition
Four Square Manual, ver. 2.1
August 21 2017
9