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Hi-Z Antennas 4-8 PRO, Manual

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Hi-Z Antennas 4-8 PRO Manual Download Page 11

11

HF RECEIVING

 

SYSTEMS & COMPONENTS

Hi-Z Antennas™ 

Hi-Z Amplifier

 

Hi-Z Amplifier 

The Hi-Z Amplifier was designed to provide amplification and matching between the short verticals and the phase controller in 
the Hi-Z phased array control systems. This amplifier is used on ALL Hi-Z phased array products. The amp is located at the base 
of each short vertical. The connecting wires must be short, in the 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 base of the verticals. 
See:

  

http://www.hizantennas.com/hiz_verticals.htm

Features:

•

Relay input (lightning and static protection, when power is off)

•

Easy connections to the base of the vertical and ground 

Hi-Z 4-8PRO UP Manual V1.0

©2011 Hi-Z Antennas™

www.hizantennas.com

Summary of Contents for 4-8 PRO

Page 1: ...e Top 4 El Controller Bottom Congratulations and Thank You for the purchase of our system We recommend that you read this manual and fully understand the requirements for the proper installation of your system Specifications Maximum RDF 12 1db 8 Directions Power Requirements 13 8 VDC 350ma Features 8 Directions every 45 degrees Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 2: ...too many compromises and limited performance typically in the 4 directions at 45 degrees to the diagonals This was not an option The standard 4 element RX array system has an inherent weakness at the 4 overlap points For example when clicking between NE and SE directions trying to listen to a signal from the East this signal would typically be down by 4db as it is in the overlap region The goal wa...

Page 3: ...ections of the Hi Z 4 8PRO overlapped N NE E Compare the attenuation at the overlap of the 4 element to 8 element design At the 8 overlap points the attenuation is 1db Therefore gaining 3db at the overlap points not to mention the 8 direction control Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 4: ...t least 10 feet Keep the verticals more than 5 feet from trees and heavy vegetation Control Cable and Coax Considerations 1 Recommended RG6 F connector tightening process See appendix A 2 Conductor wire gauge selection is a function of the length of the control cable 18 gauge wires are adequate out to 500 feet Any longer will need to increase wire gauge size to accommodate the voltage drop over th...

Page 5: ...als either homebrew or Hi Z verticals 10 Mount the Hi Z Amplifiers at the base of each vertical Connect one wire from the Antenna terminal to the base of the vertical Connect another wire from the Ground terminal to the ground rod See Hi Z Amplifier 11 Connect each RG6 coax from output of Hi Z amp to the correct Ant 1 2 3 4 5 6 7 and 8 at the PnP controller 12 Weatherproofing the Hi Z Amp Place a ...

Page 6: ...onnect the four factory supplied 2 foot long RG6 cables as follows Hi Z 4 8PRO phase controller connect TO Hi Z 4 8PRO PnP controller Ant1 A1 out Ant2 A2 out Ant3 A3 out Ant4 A4 out See Fig 2 below See Fig 1 below Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 7: ...to the same labeled terminals on the Hi Z 4 8PRO phase controller see Fig 4 Fig 3 Fig 4 Both controllers will be supplied with a RED jumper connected between the 13 8 VDC and Coax Power In terminals This supplies the voltage to the Hi Z amps over the coax Do not remove this jumper Connecting the Verticals and Delay Cable to the Phase Controller Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hiz...

Page 8: ...at Short Delay and Long Delay connectors on the Hi Z 4 8PRO phase controller Fig 7 Fig 7 Connect the factory supplied 2 foot wire jumper with fork terminals from either of the 13 8VDC terminals on the controllers and connect the other end to the 13 8VDC terminal on the75Ω In line pre amp Connect the factory supplied 2 foot RG6 cable from the OUTPUT of the Hi Z 4 8 phase controller Fig 4 to the inp...

Page 9: ...nput 5 Use your existing power cable at the existing Hi Z 4 shack switch for your new 8 direction shack switch Fig 9 Shack Preparation and Basic Operation 1 Locate the placement of the shack switch 2 Verify the voltage level is in the 13 8 VDC area Depending on the length of the control cable this voltage may need to be adjusted upwards to compensate for any voltage drop 3 Direction control Typica...

Page 10: ...mp has the two wires Antenna Ground reversed verify these connections are wired correctly Some switching power supplies can cause this symptom Measure the DC voltage on the vertical From ground to the vertical with a DVM you should measure 4 volts VDC Improper voltage readings indicate wiring problem Low IMD Verify that the voltage at the 13 8VDC and Ground terminals at the phase controller measur...

Page 11: ...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 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 base of the verticals See http w...

Page 12: ...Ground and Vertical Hi Z Amp RG6 Output THANK YOU for selecting Hi Z Antennas Hi Z Antennas 8125 SW Larch Drive Culver OR 97734 USA Vertical Orientation Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 13: ...13 Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 14: ...15 16 30 6 15 16 Hi Z 4 8PRO 84 5 42 25 78 13 16 32 4 1 16 22 10 3 8 NOTE All measurements are rounded to the nearest 1 16 Based on Hi Z 4 80 foot square footprint Based on Hi Z 4 60 foot square footprint All coaxes from controller to the vertical are equal length Radius 4 feet APPENDIX A Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

Page 15: ...nch on the chassis connector while holding it tight place another 7 16 wrench over the Male connector housing and tighten until snug Do not over tighten this F connector View pictures below Hi Z 4 8PRO UP Manual V1 0 2011 Hi Z Antennas www hizantennas com ...

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