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General Information 

 
This compact receiving antenna system operates over a very wide bandwidth with superior strong 
signal performance. The output Third Order Intercept (TOI) is approxi30 dBm. This is 
significantly better than most aftermarket preamplifiers and receivers - making it one of the cleanest 
active antennas on the market, reducing or eliminating spurious signals. 

 

Feedline decoupling, absent in some other popular designs, is also exceptionally good. Decoupling 
the shield greatly reduces feedline conducted noise and unwanted signal interference 

 

The 

ARAV4

 systems can be affected by local noise sources. Local noise can be random or 

directional in nature. Every effort must be made to locate sources of noise that could be eliminated 
at the source. Dimmer switches, electric timers, photocell-operated security lights, and many other 
items can be sources of unwanted noise.  If the noise source is directional in nature, using two 

ARAV4

 antennas in conjunction with the 

DXE-NCC-2

 Receive Antenna Variable Phasing 

Controller would allow the user to phase out the noise being received. Plasma-screen television 
receivers are a known generator of unwanted noise interference. Most modern LED or LCD flat 
panel televisions are not broadband noise generators. 

 

 
Systems Packages 

 
There are 4 Vertical Active Receive system packages.  (DXE-ARAV4-1P, -2P, -4P, -8P) 
 
 

DXE-ARAV4-1P

  

 

Non-conductive mounting plate  

 

Aluminum 3-piece antenna element  

 

AVA-2 Active matching system w/ Internal Antenna Disconnect Relay  

 

DXE-FVI-1

 - Feedline Voltage Injector − powers the matching system and provides radio 

connections 

 

Wall mounted transformer

 

+12 Vdc (120 Vac 60 Hz to +12 Vdc @ 1A)  

 

Stainless steel clamps and hardware 

 
DXE-ARAV4-2P

 - 

The two active antennas system package 

DXE-ARAV4-2P

 is intended to be 

used with the optional 

DXE-NCC-2

 Noise/Phase Controller to make a steerable dual vertical array. 

The 

NCC-2

 can also provide power (internal jumper selectable) for the active antennas and the 

proper transmit power-off sequencing. 

 

 

 

 

(2) Non-conductive mounting plates  

 

(2) High quality tapered aluminum antenna elements 

 

(2) AVA-2 Active matching systems w/ Internal Antenna Disconnect Relays  

 

(2) Element connection wires, pair, with ring and fork terminals 

 

(2) Sets of Stainless steel clamps and hardware 

 

 

 

Содержание DXE-ARAV4-1P

Страница 1: ...with NCC 2 DXE ARAV4 4P Four Vertical Array Package DXE ARAV4 8P Eight Vertical Array Package Used under US Patent No 7 423 588 DXE ARAV4 INS Revision 0a DX Engineering 2018 1200 Southeast Ave Tallmad...

Страница 2: ...e DXE NCC 2 Receive Antenna Variable Phasing Controller could allow the user to phase out the noise being received Large transmit antennas are a very good source of re radiated noise Ideally your rece...

Страница 3: ...oller would allow the user to phase out the noise being received Plasma screen television receivers are a known generator of unwanted noise interference Most modern LED or LCD flat panel televisions a...

Страница 4: ...and hardware WARNING INSTALLATION OF ANY ANTENNA NEAR POWER LINES IS DANGEROUS Warning Do not locate the antenna near overhead power lines or other electric light or power circuits or where it can com...

Страница 5: ...dline decoupling absent in some other popular designs greatly reduces feedline conducted noise and unwanted signal interference The DXE ARAV4 Active Receive system requires well filtered 10 to 15 Vdc...

Страница 6: ...nd many other items can be sources of unwanted noise Plasma screen television receivers are a known generator of unwanted noise interference Most modern LED or LCD flat panel televisions are not broad...

Страница 7: ...and C jumpers change the capacitance values As shipped all jumpers are deactivated for full frequency coverage 100 kHz to 30 MHz Frequency MHz Inductor Jumpers Capacitor Jumpers L1MF L1HF C1HF C1MF C...

Страница 8: ...ate with the antenna mounting holes close to the top as shown in Figure 1 Mount the AVA 2 matching unit with the ANT terminal toward the top and the F Connector toward the bottom Use the 5 8 hex head...

Страница 9: ...24 Hex Nut 2 18 1 4 Vinyl Cap 1 8 10 24 Nylon Lock Nut 2 REF 10 Terminal with Wire Ref Item 1 9 10 External Tooth Washer 1 7 64 Allen Hex Wrench 1 10 5 16 Aluminum Spacer 11 32 long 2 3 32 Allen Hex W...

Страница 10: ...fer 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...

Страница 11: ...of the wire in the photo On the top hex head bolt install a flat washer split washer and a hex nut Tighten in place Figure 6 The other end of the wire has a fork lug is connected to the ANT on the AV...

Страница 12: ...il conductivity increasing ground rod depth beyond a few feet for an active receive antenna rarely improves RF grounding because skin effect in the soil prevents current from flowing deep in the soil...

Страница 13: ...than the black insulated panel This prevents unwanted interference with the active element Tighten the two U Clamps to hold the assembly in place Figure 10 Connect the wire coming from the ground tab...

Страница 14: ...hardware and the included Allen wrench to secure this element in place Note The head of the socket head cap screws will fit inside of the larger hole and make contact with the element that was insert...

Страница 15: ...or this receive antenna only and are not recommended for transmit antennas Screen radius must at least equal the element height and be placed around the antenna as symmetrically as possible but should...

Страница 16: ...yle plug on the DXE FVI 1 connects to the receiver input of your radio Active antenna circuitry needs a good voltage supply to operate properly When supplying power to an active antenna you want to ha...

Страница 17: ...or Example If operating at 1 80 MHz multiply 1 80 times 0 95 That equals 1 71 MHz Select jumper configurations no higher than 1 7 MHz In this example use jumper L1MF Do not use C1 jumpers When four AR...

Страница 18: ...1P Active Receive Vertical antenna capabilities Normally the Active Receive Vertical antenna will properly reject high angle sky wave signals which is the goal for a low band DXing receive antenna Lo...

Страница 19: ...Receive Vertical antenna or b If you seem to have a high amount of common mode signal or noise arriving on the shield of the Active Receive Vertical antenna feedline that is running on or above ground...

Страница 20: ...stallation 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 ou...

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