DX Engineering DXE-DVA-10B-P Скачать руководство пользователя страница 6

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leave. Additional weatherproofing protection may be used on the coaxial connections.  
 

WARNING! 

 

INSTALLATION OF ANY ANTENNAS NEAR POWER LINES IS DANGEROUS 

 
 
 
 
 

Warning

:

 Do not locate the antennas near overhead power lines or other electric light or power 

circuits, or where they can come into contact with such circuits.  When installing the antennas, take 
extreme care not to come into contact with such circuits, because they may cause serious injury or 
death. Make sure when you are digging, you are not near any buried utility lines. 
 

Overhead Power Line Safety 

 
Before you begin working, check carefully for overhead power lines in the area you will be 
working.  Don't assume that wires are telephone or cable lines: check with your electric utility for 
advice. Although overhead power lines may appear to be insulated, often these coverings are 
intended only to protect metal wires from weather conditions and may not protect you from electric 
shock 
 
Keep your distance! Remember the 10-foot rule:  When carrying and using ladders and other long 
tools, keep them at least 10 feet away from all overhead lines - including any lines from the power 
pole to your home. 
 
 

Installation 

 

Site Selection 

 
Select mounting locations clear from power lines and structures by a minimum of height of the 
monoband antennas used plus 10 feet (for the 10 foot safety rule). 

Consider overhead power lines, 

utility cables and wires

. The monoband verticals should be mounted away from local noise sources 

or other metallic objects which can re-radiate noise and affect the tuning, radiation pattern and 
SWR. Determine the direction you want the array positioned. There should also be a clear diameter 
from the monoband antennas for the guying and radial systems that will extend away from the 
antennas. 

 
Topographical Considerations 

 
Flat or gradually sloped land is best. Erecting the transmitting array on steeply sloped land or 
uneven terrain might degrade performance. To avoid pattern degradation, antenna elements should 
have reasonably similar elevations. It's recommended the maximum ground height difference 
between any of the vertical antennas in the array should be less than 20% of the array diameter. For 
example, two 80 meter verticals 66 feet apart should be within 13 feet of level. Every effort should 

Содержание DXE-DVA-10B-P

Страница 1: ...em for 30 meters DXE DVA 20B P Dual Vertical Array system for 20 meters DXE DVA 17B P Dual Vertical Array system for 17 meters DXE DVA 15B P Dual Vertical Array system for 15 meters DXE DVA 12B P Dual...

Страница 2: ...ncludes a sleek new Phasing Relay Unit and a new Control Console The model number of your system corresponds to the band for which it was manufactured There are 10 system models available that cover 1...

Страница 3: ...fed through 1 4 wave long 75 transmission lines No additional matching components or decoupling devices may be used like baluns or coils between the centrally located Dual Vertical Phasing Relay Unit...

Страница 4: ...ins Control Cable 3 conductors minimum 20 AWG Control Wire Connections Set screw connectors internal at the Control Console and a removable external connector at the DVA Phasing Relay Unit Cover on th...

Страница 5: ...on manual Tools Required 1 2 nut driver or wrench for the DXE SSVC 2P V Clamp Wire stripper for control lines Small flat blade screwdriver for control line connections Soldering Iron and Solder to joi...

Страница 6: ...ools keep them at least 10 feet away from all overhead lines including any lines from the power pole to your home Installation Site Selection Select mounting locations clear from power lines and struc...

Страница 7: ...more than 10 degrees magnetic declination you may want to correct for it Declinations below ten degrees can be safely ignored If you know your longitude and latitude you can then pinpoint yourself on...

Страница 8: ...s BAND Part Number Description Comments 160 DXE 160VA 1 Vertical 160 meters 160m 5 000 W Pivoting Fixture Mount 55 00 ft Height Kit Need two 80 DXE 7580FS VA 1 80 Meter Quarter Wave Vertical 80m Full...

Страница 9: ...tween each antenna 1 4 wavelength is 246 L in Feet MHz Use 246 divided by the Frequency in MHz Length in feet Other spacing close to this value may work but the characteristics of the main lobe will c...

Страница 10: ...1 900 39 5 129 5 80 75 3 550 21 1 69 3 3 575 21 0 68 8 3 650 21 0 67 4 IDEAL 80 M 3 710 20 2 66 3 3 795 20 0 64 8 60 5 357 14 0 45 9 IDEAL 60 M 40 7 040 11 0 34 9 7 110 11 0 34 6 7 150 10 4 34 4 IDEAL...

Страница 11: ...ey requirement for a high performance dual phased monoband vertical antenna system With any vertical antenna the radials are the second half of the antenna The radials contribute to the radiation effi...

Страница 12: ...mended If you have very rocky or mostly sandy soil using more longer radials may help the performance of your phased antenna system Extra radials help overcome unknown poor soil conditions improve eff...

Страница 13: ...wave vertical antenna and a few ohms of ground loss assuming a good ground When measured one vertical with the other one floating and the results are approximately 39 j 0 ohms of impedance and then g...

Страница 14: ...the DVA Phasing Relay Unit to the previously installed mounting pipe as shown below The use of JTL 12555 Jet Lube SS 30 Anti Seize for stainless steel hardware is recommended for any stainless steel...

Страница 15: ...minimum Tools Required Phillips Head Screwdriver Wire Stripper Small Flat Blade Screwdriver Control Console Overall Size Interior Connections 1 Open the unit by removing the four two per side Phillip...

Страница 16: ...r conductors Your color code may vary When connecting the control cable to the DX Engineering Dual Vertical Array system ensure your cable is wired the same way at both ends to avoid un necessary trou...

Страница 17: ...pletely into the wire connection hole Refer to your color code chart to ensure the connections are 1 to 1 2 to 2 and G to G Using a small flat blade screwdriver tighten the associated screw until the...

Страница 18: ...ction can be provided when using weatherproofing tapes available from DX Engineering Lightning Protection The key to lightning survival is to properly ground feedlines and equipment and to maintain th...

Страница 19: ...19 Typical EZNEC DX Engineering Dual Vertical Array Plots...

Страница 20: ...but it can happen F Damaged by animals or insects Animals and insects have been known to relieve themselves on and in the relay unit and their urine will corrode and damage electronics Insects gettin...

Страница 21: ...or replaced A new DVA Control Console DXE EC DVA is available from DX Engineering Continue troubleshooting the array control with a good DVA Control Console or by using a 1A fused power source 5 Deter...

Страница 22: ...ple When the measurement is being done on one vertical antenna the other vertical antenna should be floating not connected to anything It is also expected that the impedance of a single full size quar...

Страница 23: ...pedance 46 j 12 ohms is right on target at the selected frequency of 7 150 MHz Do not adjust the verticals for a different result when the antenna feedlines are connected in parallel for this test The...

Страница 24: ...allation damaged from severe weather including floods or abnormal environmental conditions such as prolonged exposure to corrosives or power surges or by the performance of repairs or alterations outs...

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