Specifications

68
Reversible
Beverage System
The DXE-RBSA-1P allows two Beverage antennas
receiving in opposing directions to share the same space.
With the DXE-RBSA-1P, you can build a 2-wire reversible
Beverage antenna system with superior signal-to-noise
ratio, most useful at 40, 80 and 160M bands. The W8JI
design consists of a Feedpoint System and Reflection
Transformer. You can operate and even confirm the F/R
ratio of this antenna at any time from the operating
position.
This system is immune to strong signal overload and
core saturation common in multi-transmitter contesting
environments, and is used by winning contest stations and
low-band DXers.
The DXE-RBSA-1P has two antenna ports. The standard configuration of the DXE-RBSA-
1P has one port terminated (termination included) so both antennas share a common
feedline. Applying 10 to 18 Vdc to the feedline switches between the antenna, and the
direction of reception. For simultaneous reception from opposing directions, each of the
two feedlines connect to a separate receiver.
While the DXE-RBSA-1P is optimized to use 450 Ω ladder line for the antenna element,
the system will work with any 300-600 Ω 2-wire line. 450 Ω ladder line is available from
DX Engineering, sold separately. DX Engineering also sells quality 75 Ω coax and Type F
connectors for outdoor installations.
Benefits
• Broad operating range, 0.2 to 30 MHz
• Fully isolated grounds used to prevent common-mode noise and unwanted signals
• 75 Ω design enables the use of high quality, low cost cable
• Metal housings used for superior shielding and improved life
DXE-RBSA-1P Reversible Beverage Feed System ..................................... $209.95
DXE-TB-5P Tilt Base .................................................................................. $19.95
2-Port Receiving
Antenna Switch
Select one of two output ports (generally connected to
di erent receiving antennas) from one feedline using the
DXE-RLS-2. Install the DXE-RLS-2 with two DXE-RBS-1P
Reversible Beverage Antenna Systems and select four
directions using a single main feedline. Install one or more
DXE-RLS-2s to expand larger Beverage arrays and share the
feedline back to the operating position.
Applying a nominal 12 Vac or DC control voltage through the
feedline activates transfer to port 2. Use DX Engineering’s
DXE-FVC-1 Voltage Coupler to supply the control voltage
through the feedline.
Benefits
• Metal housings used for superior shielding and improved life
• High-quality components
• Reliable CATV type F connectors standard
• Broad 0.3 to 30 MHz operating range with 75 Ω systems
• Jumper-selectable—control voltage pass-through to the selected port
DXE-RLS-2 Receiving Antenna Switch .................................................... $79.95
Single Direction
Beverage Feed System
The DXE-BFS-1 is a single-wire Beverage Feed System.
This W8JI design is immune to strong signal overload
and core saturation common in multi-transmitter
contesting environments, and is used by winning
contest stations and low-band DXers. The unit uses
an isolated-winding, matching transformer system
to significantly increase the signal-to-noise ratio in
Beverage and other high impedance antennas.
The DXE-BFS-1 works with antenna impedances from
400-500 Ω. Included with the DXE-BFS-1 is a 470 Ω,
2 watt non-inductive resistor that withstands nearby
lightning strikes significantly better than hard-to-find carbon composition resistors.
Feedline impedance on the DXE-BFS-1 is designed for 75 Ω, although it will work
with 50 Ω coax. The DXE-BFS-1 uses an industry standard CATV type F connector.
DX Engineering sells quality 75 Ω coax and type F connectors for outdoor installations.
Benefits
• 100 kHz to 30 MHz operating range
• Spark gaps minimize damage from lightning
• Wing nut terminals eliminate soldering
• Metal housings used for superior shielding and improved life
• Flange-mount holes for easy mounting
• Ground isolated secondary essential for building beverage arrays
DXE-BFS-1 Beverage Feed System .......................................................... $54.95
DXE-ECM-R470-2 470 Ω, 2 Watt Resistor, Lightning Damage-Resistant,
Pack of 10 ............................................................................... $20.00
DXE-TB-5P
Splitter/Combiner
Use this to combine two receiving antennas to form an
array or to split the signal from an antenna to feed two
receivers. The DXE-RCS-2 also reduces problems and
performance shortfalls caused by impedance errors in
less-than-perfect antenna systems. This unit has a broad,
0.3 to 30 MHz range and features spark gaps to lessen
damage from lightning strikes.
Combining
• Matches the entire antenna system to cable impedance
• Wide bandwidth
• Built-in isolation and balancing
• Very high isolation between ports 1 and 2
Splitting
• Typical signal level reduction just over 3 dB per port
• Provides equal power, voltage, and current to matched loads on ports 1 and 2
• The individual receiver will not seriously a ect the signal level of the other
DXE-RSC-2 2-Port Splitter and Combiner............................................................ $54.95
Receive Preamplifier
Optimized for a 0.3-35 MHz operating
range, this unit uses a push-pull amplifier
design to squash harmonic distortion.
Robust components help it handle high
signal levels and its dynamic range is better
than most receivers. This preamp is well
suited for indoor or outdoor use and can
be powered via coax feed. When DC power
is absent, a relay trips to automatically
bypass the amplifier.
Specifications
• RCA type phono jack and type F connector
• Gain: 16 dB, 0.3-35 MHz (+1.5/-1.5 dB over this range)
• Output Third Order Intercept: 43 dBm
• Noise Figure: 3.5 dB
• One dB Compression: +26 dBm (~0.4 W output)
• 500 Hz BW IM3 Dynamic Range: 110 dB or greater
• Requires 10-18 Vdc at 140 mA max.
DXE-RPA-1 Receiver Preamplifier, 0.3-35 MHz ..................................... $123.95
Maximum Signal—Minimum Noise!
How o en have you heard the old saying “If you can’t hear ’em, you can’t work ’em?”
This is never more true than when you are in the pileup calling that rare contact that
you need, wondering “Did he come back to me?”
DX Engineering provides all the tools you need to construct fabulous receiving
antennas—the kind that let you work stations that others can’t even hear! These
W8JI-designed amplifiers and antenna controllers are known worldwide for their
unequalled performance. Record-breaking DXpeditions—like VP6DX Ducie Island—
know and use DX Engineering receiving equipment. Follow their lead and enjoy
hearing those weak stations like you have never heard them before.
Antennas: Receiving
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