DX Engineering DXE-RR8B-HP-P1 Instructions manual

RR8B-HP

8-Port Remote Antenna Switch

DXE-RR8B-HP-INS-Revision 2d

 DX Engineering 2019

1200 Southeast Ave. - Tallmadge, OH 44278 USA

Phone: [phone]  Technical Support and International: [phone]

Fax: [phone]  E-mail: [e-mail]

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Introduction

Minimum Copper

Wire Gage (AWG)

Length

24

1,000 feet

22

1,500 feet

20

2,000 feet

The DXE-RR8B-HP is an 8-port switch designed to switch coaxial lines in low to medium-power RF
systems. Enclosed relays provide exceptional performance and are moisture resistant. The RR8B-HP can be
used to simultaneously select multiple output ports as well as conventional one-of-eight antenna switching.
This allows the RR8B-HP to be used in complex antenna phasing and stacking systems as well as traditional
switching arrangements. The RR8B-HP also uses a removable screw terminal control cable plug. The
removable plug greatly simplifies installation by eliminating the need for soldering. Disassembly is not
required for control wiring access.

The RR8B-HP also offers the following features:

 RF Shielded Weatherproof Housing - unique protection
 Excellent Port Isolation; greater than 70dB at 30 MHz, worst case.
 High-RF tolerant, silver-PTFE UHF connectors
 Shorted or open selection of unused antenna ports
 Enclosed 20-ampere RF relays
 Safe 12-volt relay operation
 MOV surge protection on control lines

Specifications

Power Rating: 7kW ICAS all modes, under 2:1 SWR, 5 kW CCS all modes, under 2:1 SWR
Control Voltage: 10-14 Vdc at 100 mA
Port-to-Port Isolation: >70 dB below 30 MHz, >55 dB below 60 MHz
Loss: <0.1 dB below 60 MHz
Impedance: 50 ohms
Dimensions: 10.375" x 9.875" x 4.375" and the mounting flange hangs down 2.25"
Control Line: Control lines can normally use good quality CAT5e cable (4 twisted pairs of 24

AWG wire) for runs up to 1000 feet. Typical DX Engineering control lines requirements are
+12 VDC at 25 milliamps. Depending on the number of control lines needed (usually 3 or 4)
you can double up the twisted pairs of CAT5e cable, or use control wire that is at least 22 AWG,
allowing runs up to 1500 feet. If you use a cable with more conductors, it is a good idea to tie
the unused conductors to ground. For longer runs of control cable, use a line loss calculator to
ensure you supply the proper control levels needed.

Approximate Control Line Lengths.

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