DX Engineering DXE-DVA-10B-P Manual Download Page 5

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DXE-UHF-FDFB-KIT

 SecureMount™ Bulkhead Connector for a clean and quality 

feedline connection, one for each Radial Plate 

 

DXE-FP-WIRE-P

 Feedpoint Wire & Connector Assemblies, one for each vertical element 

 

DXE- RADW

 Radial Wire for the required vertical antenna radials  

 

GCL-1120-050

 Copper Radial Cross Bonding Strap, 2” wide 

 

COM-CW3

 - Three Wire Control Cable - COM-CW-3 is 3-wire, 20 AWG, stranded copper 

with a PVC jacket 

 

Galvanized Mounting Pipe, 1 inch minimum to 2 inches OD maximum, for mounting the 
Dual Vertical Array Phasing Relay Unit at the center of the array using the supplied 

DXE-

SSVC-2P

 Stainless Steel V-Clamp (see text for details) 

 

TES-2155

 3M Temflex Tape and 

TES-06132

 Scotch Super 33 Tape for Weatherproofing 

the coaxial cable connections 

 

DXE-400MAX or DXE-213U

 or equivalent,

 

50-ohm coaxial cable for the array main 

feedline from the transceiver to the Phasing Relay Unit 

 
Manual Updates 
 

Every effort is made to supply the latest manual revision with each product. Occasionally a manual 
will be updated between the time your DX Engineering product is shipped and when you receive it. 
Please check the DX Engineering web site (

www.dxengineering.com

) for the latest revision 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 join the two radial fields together where they meet 

 
General Installation Information 

 
The DVA Dual Vertical Array Phasing Relay Unit should be mounted to a customer supplied 
mounting pipe at the center of the array, halfway between the two monoband verticals.  
 
The DVA Dual Vertical Array Phasing Relay Unit has a built-in, stainless steel, pre-drilled 
mounting flange to accommodate up to a 2 inch OD mounting pipe. The included 

DXE-SSVC-2P

 

Stainless Steel V-Bolt Saddle Clamp is for attaching the Phasing Relay Unit to the customer 
supplied 1" to 2" OD mounting pipe. An optional 

DXE-CAVS-1P

 V-Bolt Saddle clamp can be 

used for pipe from 3/4" to 1-3/4" inches OD. The Phasing Relay Unit can also be mounted on a 
sturdy wooden post.  
 
Note: 

JTL-12555

 Jet-Lube SS-30 Anti-Seize should be used on all clamps, bolts and stainless steel 

threaded hardware to prevent galling and to ensure proper tightening. 
 
The Array Phasing Relay Unit 

must

 be mounted with cover upward and the control and coaxial 

cable connections downward to prevent water from entering the box. The stainless steel base of the 
Array Phasing Relay Unit has weep holes to allow condensation that may build up inside the unit to 

Summary of Contents for DXE-DVA-10B-P

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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