Hi-Z Antennas Hi-Z 8A-160 Manual Download

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Hi-Z 8A Element Man. 3.0

Z Antennas™

www.hizantennas.com

HIGH PERFORMANCE

HF RECEIVING

SYSTEMS & COMPONENTS

Hi-

Z Antennas™ 8 Element Narrow Systems **

Hi-Z 8A-160 (160 meters) 200 Foot Diameter Circle

Hi-Z 8A-80 (80 meters) 100 Foot Diameter Circle

(A models have the Pre-amp external)

Level1 PLUS Amps, Level2 with PLUS6 Amps

Hi-Z Amp & Hi-Z Amp PLUS6 Information located at the end of this manual

Constructing a LOW-Band (160, 80 meter) Receiving Narrow 8

Element Circular Antenna System

Please read the entire manual before proceeding with your install.

Specifications Hi-Z 8A

– 160 & Hi-Z 8A – 80



13.5db RDF, Super Directive Array



8 crisp directions every 45 degrees, with 52 degree view per direction for total direction control



Power is 13.8VDC at 420ma



Upgradeable

– future Hi-Z optional modules expanding capabilities

Check to see that all parts were received.

Summary of Contents for Hi-Z 8A-160

Page 1: ...Hi Z Amp Hi Z Amp PLUS6 Information located at the end of this manual Constructing a LOW Band 160 80 meter Receiving Narrow 8 Element Circular Antenna System Please read the entire manual before proceeding with your install Specifications Hi Z 8A 160 Hi Z 8A 80 13 5db RDF Super Directive Array 8 crisp directions every 45 degrees with 52 degree view per direction for total direction control Power i...

Page 2: ... covering 160 or 80 meters The unique advantage of the 8 element system is that it can be switched electrically to provide receiving capability in eight different directions This system is also somewhat unique in that it uses high impedance amplifiers at each antenna to extract the signals Using these amplifiers negates the need for an extensive ground radial system around each antenna element in ...

Page 3: ...above layout the main lobe of the response is pointing directly at element 1 Electrically this pattern can be switched to point at any of the elements 1 through 8 Narrow 8 200 Foot 160 meters 8 100 Foot 80 meters Diameter Azimuth Plot The long and short phasing cables are supplied and tested to provide best overall system performance Narrow 8 Elevation Plot ...

Page 4: ...nly higher bands such as twice the frequency at 80 meters and 100 foot diameter then a 10 foot element would be fine There is one 160 meter system presently operating with just 6 foot elements and lowest band performance is marginal at best It also required measuring and adjusting element voltages and phases very accurately If you want the best performance stick with 15 to 24 foot length elements ...

Page 5: ...om each antenna to the center controller one can use the following formula Formula Circle RADIUS plus 4 feet extra cable giving 100 feet plus 4 feet or 104 feet for 160 meters or 54 feet for 80 meters The length of these cables is not critical except that they all be the same length and from the same spool of cable This ensures the phase delay for each cable will be equal and therefore not require...

Page 6: ...necting The Elements It is very important to connect the elements to the center controller in numerical and shack switch matching order as shown in the antenna view One can certainly physically put your antenna 1 in any direction of the compass Direction 1 is typically North That way when the Hi Z antennas shack switch is used the LED indicators will indicate direction just like looking at a North...

Page 7: ...X X X X X Phase Controller X X X X X X X Rear View Shack Switch The control cable should be connected between the shack switch and the controller connections as seen below The supplied delay cables SHORT LONG should be connected to Short Delay connectors and the Long Delay connectors on the phase controller Array power is supplied through the array power connector This allows the front panel toggl...

Page 8: ...ade through the RG6 coax shield The OUTPUT from the Pre ampPLUS is connected to the RG6 feed coax to the shack On the shack end of the coax insert the 75 50Ω Transformer The output of the Transformer requires a BNC male connector This end will connect to your RX port connector Long Delay Cable Control View Short Delay Cable and Power View Antennas 1 4 View Antennas 5 8 View ...

Page 9: ... conditions it is best if you use a matching 75 to 50 ohm transformer This allows the included preamplifier to give maximum IMD performance The Coax Power In terminal is provided to disconnect the 13 8VDC sent out to all the controller antenna inputs for powering the Hi Z amps at the elements Removing the factory jumper removes the voltage on the antenna inputs Signal Sources handy device for test...

Page 10: ... is shipped with factory made LONG and SHORT delay cables and these are connected to their respective connectors on the phase controller 8 Place the Hi Z antennas 8 element controller in the center of the array Connect the first left of North element 1 element to antenna 1 input on the controller Proceed clockwise around the array in a circle connecting the elements to input 2 3 and up to 8 10 Con...

Page 11: ...cals V1 V8 Verticals 1 8 Each vertical is 45 degrees spacing MODEL Diameter Radius A B C Hi Z 8A 160 200 100 76 6 7 16 54 1 7 16 Hi Z 8A 80 100 50 92 4 5 8 38 3 27 11 16 NOTE All measurements are rounded to the nearest 1 16 All coaxes from controller to the vertical are equal length Radius 4 feet ...

Page 12: ...range or 8 10 inches long When dressing or routing the wires between the vertical and ground rod to the Hi Z Amps maintain as much separation between the ground and antenna wires as possible If these wires are to close it will degrade the system performance The Hi Z Amp MUST be Weatherproofed Please review our application and technical notes to gain ideas for mounting the Hi Z amplifiers near the ...

Page 13: ...ressing or routing the wires between the vertical and ground rod to the Hi Z Amps maintain as much separation between the ground and antenna wires as possible If these wires are too close it will degrade the system performance Please review our application and technical notes to gain ideas for mounting the Hi Z amplifiers near the base of the verticals See http www hizantennas com hiz_verticals ht...

Page 14: ...Detail THANK YOU for selecting Hi Z Antennas Hi Z Antennas 8125 SW Larch Drive Culver OR 97734 USA The Hi Z 4 Hi Z 8N and the Hi Z 8W products are being sold as permitted under the terms of a certain License Agreement among PDS Electronics Inc dba DX Engineering as the Licensor and Hi Z Antennas and Lee Strahan as the Licensees ...

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