DX Engineering DXE-RLS-2 Instructions manual

2-Port Receiving Antenna Switch

RLS-2

DXE-RLS-2-INS Revision 3c

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2

Introduction

The DX Engineering 2-Port Receiving Antenna Switch RLS-2 is designed to allow selection of one
of two output ports (generally connected to different receiving antennas) from one feedline.
Transfer activates with application of a +10-15 Vdc or 9-12 Vac control voltage through the
feedline.

Features

 Metal housing for superior shielding and long life
 High quality components
 Reliable F-type connectors
 Operating range from 300 kHz to 30 MHz with 75 Ω systems
 Jumper-selectable, control voltage pass-thru to the selected port

When used with two DX Engineering RBSA-1P Reversible Beverage Systems, the RLS-2 will
allow selection of four directions using a single main feedline. See Figure 1. Install one or more
RLS-2’s to expand larger Beverage arrays and share the feedline back to the operating position.

The DX Engineering FVC-1 Voltage Coupler can be used to supply the control voltages through
the feedline to control 4-direction switching of a receiving antenna array or selection of four
different receive antennas.

Operation

The RLS-2 is in effect a SPDT (Single Pole, Double-Throw) RF switch that has one input port and
two output ports. With no control voltage, the NC (normally closed) ANT 1 port is connected to the
RCVR input port. With constant application of +12 Vdc or 12 Vac through the feedline ports
switch, the NC ANT 1 port opens and the NO (normally open) ANT 2 port closes, connecting to the
RCVR input port.

Jumper Header shown

in the “OFF” position.

(factory default)

Voltage pass through

is blocked.

Voltage pass through is blocked (Factory Default) when the jumper is show as above. To pass
voltage through, to control other RLS-2s, the RBSA-1P Reversible Beverage System, or a special
application, the internal jumper is moved to the “ON” (pin in center and right are jumpered). When
the right two pins are connected, any control voltage present on the feedline at the RCVR port will
pass through the RLS-2 to the selected port. Removing the internal jumper (or putting it on the
“OFF” position as shown above - Factory Default) blocks these voltages.

One or more RLS-2s can also be used to expand larger Beverage arrays or for placing taps along a
feedline for multiple antennas. Figures 1 and 2 depict typical configurations.