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DX Engineering Receive Four-Square Complete Array Packages DXE-RFS-SYS-4P

Receive Four-Square Complete Array Package, w/4 Active Receive Verticals, Cable, Tools, 13.8 Vdc, Kit

Estimated Ship Date: 11/10/2014 (if ordered today)

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Price:

$1,947.95

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  • Oversize

    The part DXE-RFS-SYS-4P has an additional shipping charge of $8.00 per item due to its large size and/or weight.

Manufacturer's Part Number: DXE-RFS-SYS-4P
DXE Part Number: DXE-RFS-SYS-4P

Receive Array Type: Four-square
Array Directional Selections: Four, 90 degree spacing
Control Console Selector Type: Rotary switch
Control Console Position LED Indicators: Yes
Control Cable: 4-conductor
Removable External Connector: Yes
Control Console Width (in.): 6.375 in.
Control Console Height (in.): 2.312 in.
Control Console Depth (in.): 5.000 in.
Control Console Weight: 1.50 lbs.
Array Switch Width (in.): 6.500 in.
Array Switch Height (in.): 2.500 in.
Array Switch Depth (in.): 4.375 in.
Array Switch Weight: 1.20 lbs.
Quantity: Sold as a kit.
Notes: US Pat. No. 7,423,588. Array switch (relay unit) mounting bracket extends 1.500 in. above specified height.

DX Engineering receive four-square complete array packages are advanced four-square receiving systems that use four symmetrically spaced elements to provide switching for a 4-direction receiving antenna system. These unique systems use time delay phasing, rather than the single band phase shifting used in traditional four-squares. When used with active receive elements, this time delay phasing scheme provides the correct phase relationship across a wide frequency range, producing useful front-to-rear ratio (F/R) response over octaves of bandwidth. These systems use directionally optimized time delays to produce wider and deeper rear nulls. Wide null areas and a narrow main lobe greatly reduce noise and undesirable signals. DX Engineering receive four-square complete array packages are more reliable than a conventional transmitting four-square system in receiving applications. Most transmitting four-squares use large, exposed open-frame relays, which can become contaminated or corroded. Ours use sealed relays; the contact size is optimized for receiving applications.

Features include:

* W8JI unique patented design
* Seamless stainless steel enclosure for enhanced weather resistance
* Reduced susceptibility to high angle signals compared to EWE, Flag, Pennant, and K9AY
* Operates from 100 kHz to 30 MHz
* Excellent directivity in small space for better signal-to-noise ratio
* Switching of four 90 degree spaced directions
* Directivity over a very wide frequency range using DX Engineering active receive antennas
* Requires less space than a Beverage antenna; active elements need only a minimal ground system
* Easier to deploy and maintain than a 4-direction Beverage antenna system
* Using active elements, system allows close proximity to transmit antennas using transmit/receive sequencer
* Enhanced relay contact reliability
* Low current, DC-powered control console allows system operation without AC power mains

Kits include:

* One DXE-ARAV3-4P package of four active receive vertical antennas with internal antenna disconnect relays
* One DXE-RFS-2 receiving four-square antenna switch
* One DXE-EC-4 four-position control console
* One DXE-TVSU-1A time variable sequence unit
* One DXE-F6-1000 1,000 ft. rolls of 75 ohm flooded coaxial cable
* Twenty-five DXE-SNS6-25 Snap-N-Seal connectors
* One DXE-SNS-CT1 Snap-N-Seal crimp tool
* One DXE-CPT-659 coax cable stripper with one replacement blade

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