[NCC] Forwarded from K8FC who is downsizing

Jeffrey Ach w2fu at frontiernet.net
Sat Jun 25 10:39:09 EDT 2016


For sale, a complete HI-Z 4 square rx system including the elements (local
to my area or Ohio only). Included as well is a water proof box for outside
electronics.  This array was used extensively in combination with my 6
beverage antennas to work almost 300 countries on 160 alone.  This array is
optimized for 80' spacing but can certainly be use with 60' spacing if
needed.  System is complete and ready to be installed at your qth for plug
and play.  No need to buy antenna elements or figure out a way to mount
them, it is all included in this package.

A link to photos will appear at the end of this description.





Hi-Z Antennas Four Element Array Systems


Hi-Z Antennas Four Element Array Systems offer four selectable directions of
enhanced, low-noise receive performance and over 30 dB front to back
directivity for the 160, 80 and 40 meter bands and useful reception from
below the AM broadcast band through 30 MHz. Four element arrays offer a
narrower beam-width than three element arrays, for lower noise and better
directivity.

These antenna systems feature the Hi-Z Phasing Controller with a unique
circuit configuration and phase combiner that maintain system phasing
accuracy and signal amplitude stability. Twin delay lines provide time delay
phasing to take advantage of the full frequency coverage of the new Hi-Z
Plus-6 Amplifiers included this Level 2 system. When using these receive
arrays, the most apparent benefit is the ability to position the deep
pattern null to any of four different directions, providing fantastic
rejection of interfering signals and noise across the spectrum!

Four individual antenna amplifier units are connected to the base of four
ground-mounted, 18 to 24 ft. tall, vertical elements that are positioned at
the corners of a square layout. Array verticals installed at 80 ft. spacing
optimizes 160 meters while achieving best three-band performance. At 60 ft.
spacing, for greater installation flexibility, a minor reduction in 160
meter performance allows the best results for 80 and 40 meters. Vertical
antenna elements and feedlines are sold separately. Performance of the
entire system depends upon the accuracy of array layout and connecting
cables and the effect of metal structures.

Hi-Z Antennas Four Element Array Systems multi-band directional receive
vertical arrays fit in the smallest of areas. When well built, Hi-Z systems
will outlast and outperform nearly all other low-band receiving antenna
types. Hi-Z receiving systems offer excellent IMD properties so they are
perfect for contesting and DXing!

Hi-Z Antennas Four Element Array Systems four-direction receive systems
include:
* One rotary Switch Selector unit with 4 LED directional indicators
* One four-element Phasing Controller
* Four High-Impedance Plus-6 Amplifiers for connection to customer supplied
vertical elements.
* Two 75 ohm delay cables, lengths determined by customer system selection
of either 80 or 60 ft. element spacing
* One in-line Hi-Z Antennas 75 ohm Receive Preamplifier for use at the array
* One in-line Hi-Z Antennas Transformer, 75 ohm F connector to 50 ohm BNC
connector for use in-shack

Specifications:
* Optimization for 160 meters or 80 meters with excellent 80 and 40 meter
performance
* Over 30 dB f/b ratio
* Covers 300 kHz to 30 MHz
* Operates on +13.8 Vdc at 250 mA
* Requires 4-conductor control cable

Price: $475

 

https://goo.gl/photos/4H1xyR2hTF7NFi1RA




 



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