DX Engineering DXE-AVA-3 Manual Download | Manualshive

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Receive Short

Element Active

Vertical Antenna

DXE-RSEAV-1 - Single Active Vertical Antenna

DXE-RSEAV-1FVI - Single Active Vertical Antenna

w

/

Feedline Voltage Inserter

DXE-RSEAV-INS-Revision 0

DXE-RSEAV-1

shown with optional ground rod

© DX Engineering 2022

1200 Southeast Ave. - Tallmadge, OH 44278 USA

Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200

E-mail:

DXEngineering@DXEngineering.com

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Summary of Contents for DXE-AVA-3

Page 1: ...EAV 1FVI Single Active Vertical Antenna w Feedline Voltage Inserter DXE RSEAV INS Revision 0 DXE RSEAV 1 shown with optional ground rod DX Engineering 2022 1200 Southeast Ave Tallmadge OH 44278 USA Phone 800 777 0703 Tech Support and International 330 572 3200 E mail DXEngineering DXEngineering com ...

Page 2: ...ts for use in phased array systems At the heart of the RSEAV Antennas is the DXE AVA 3 Active Matching Unit Its state of the art broadband operational amplifier design works as a high impedance buffer for the connection to a short element of 6 to 24 feet It achieves unparalleled weak signal reception with these features and benefits Ultimate frequency coverage of 40 kHz to 30 MHz for VLF through H...

Page 3: ... are not broadband noise generators If the noise source is external and single directional in nature using two DXE RSEAV 1 antennas in conjunction with the DXE NCC 2 Receive Antenna Phasing Controller could allow the user to phase out the noise being received Large transmit antennas are also very good source of re radiated noise A DXE RSEAV 1 or the DXE AVA 3 cannot be mounted on or near a mast or...

Page 4: ...ias tee and power source for use with any receiver or a transceiver with a receive antenna RX ANT input May be used on any transceiver with the optional DXE RTR 2 Modular Receive Transmit Interface DXE AVA 3 Active Matching Unit Non conductive mounting plate Aluminum 3 piece antenna element 8 feet 6 inches long DXE FVI 1 Feedline Voltage Injector powers the matching system and provides radio conne...

Page 5: ... wrenches or nut drivers and a 5 8 wrench 2 Phillips Head Screw Driver 7 64 and 3 32 Allen Wrenches Included in this kit Knife or Scissors for cutting the weatherproofing tapes Parts needed but not included JTL 12555 Jet Lube SS 30 for antenna elements and all stainless steel hardware LCT 37534 Loctite Dielectric Grease used on F Connectors TES 2155 3M Temflex Tape used to weatherproof the F Conne...

Page 6: ...ithin 10 miles 16 km As the gain setting is increased in the AVA 3 the possibility for RF overload and distortion increases at extremely high signal input levels Therefore in locations with multiple transmitters or high ambient local noise do not use the 6dB setting Longer elements such as 20 to 24 ft that are typically used for low band AM LF and VLF will also produce a higher ambient local and a...

Page 7: ...ER F connector supplies DC power to the AVA 3 circuitry In that case the center pin of the coax is 13 8 VDC and the shield ground is 0 VDC When this method of powering the AVA 3 is chosen the 75 Ω OUTPUT coax F connector handles only the received RF When the jumpers are set replace the cover ensuring the weep holes are toward the bottom AVA 3 is mounted vertically as shown above Weep holes Assembl...

Page 8: ... Socket Head Cap Screw 2 2 1 2 Tube Drilled 1 12 6 Flat Washer 2 3 3 8 Tube Drilled 1 13 6 32 Nylon Lock Nut 2 4 1 4 Tube Drilled 1 14 4 40 x 1 2 Socket Head Cap Screw 2 5 10 24 x 1 1 2 Hex Head Cap Screw 2 15 4 Flat Washer 2 6 10 Flat Washer 8 17 4 40 Nylon Lock Nut 2 7 10 24 Hex Nut 2 18 1 4 Vinyl Cap 1 8 10 24 Nylon Lock Nut 2 REF 10 Round Term with short wire Forked Term 1 9 10 External Tooth ...

Page 9: ...o ground rod mast mounting clamps and one ground clamp with tab which are described in the following assembly Bottom Antenna Element Assembly Refer to the drawing shown in Figure 3 and Figure 4 for the antenna assembly Figure 4 Figure 4 Install 2 hex head bolts 10 24 x 1 1 2 long in the mounting plate using flat washers and hex nuts as shown in Figure 5 tighten in place Figure 5 ...

Page 10: ...ce Figure 6 NOTE The following describes the use of DXE SSVC 1P and DXE SSVC 1PG V Clamps that are included with the RSEAV These are used for mounting the RSEAV on a typical customer supplied ground rod from 1 2 OD to 3 4 OD If you plan to mount the RSEAV to a larger mounting mast you will need two optional DXE SSVC 150P and one optional DXE SSVC 150PG V Clamps which will accommodate a mounting ma...

Page 11: ...Tighten the two U Clamps to hold the assembly in place Connect the second longer wire coming from the ground tab to the AVA 3 antenna GROUND connection use the wing nut and hand tighten only The forked terminal goes between the two washers on the GROUND terminal as shown in Figure 10 Installing the upper two Antenna Elements The upper two elements are installed to the antenna element that is in pl...

Page 12: ...ght and be placed around the antenna as symmetrically as possible but should not exceed a radius of 20 feet The AVA 3 negative terminal or its radial system should never be connected to any metal structure to assure low noise operation Do not use elevated radials or grossly asymmetrical radial configurations The ground system is an integral part of this receiving system and if it is asymmetrical o...

Page 13: ...ded style cables have the distinct advantage of automatically sealing small accidental cuts or lacerations of the jacket Flooded cable also prevents shield contamination and has a gummy liquid inside that seals cuts or nicks displaces water and can be direct buried The feedline carries the RF and is used to provide power for the AVA 3 Active Matching Unit DXE EX6XL 25 Compression type F connectors...

Page 14: ...or jumpers installed onto pin 1 and 2 of both J2 and J3 should be found for normal FVI 1 DC on the RF coax operation 3 After tuning in a steady non fading reference signal on the broadcast band and noting the signal level add 4 radials that are about 15 feet long to the negative terminal ground rod connection on the AVA 3 If this significantly increases signal level then adding another ground rod ...

Page 15: ...rcept and dynamic range that is far superior to most receiver front ends Simultaneous use of the external preamplifier as well as using receiver internal attenuation and or RF Gain reduction along with AF Gain increase can provide substantially improved signal readability Often external preamplification is not required for best results DXE AVA 3 ...

Page 16: ... not extend to any products or parts thereof which have been subjected to any misuse or neglect damaged by accident rendered defective by reason of improper installation 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 outside of our plant and shall not apply to...

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