800 2 Ch, Single Tx/Rx Antenna, 50W Tx, +11-28VDC Rx LNA, 3RU

The MiniSystem Combiner (MSC) is an innovative solution that simplifies the design, quotation, procurement and installation of RF combining for applications requiring 1-4 RF channels.

SKU: MSxxxx-0205-SP (800) Category:

The MSC Tx combiner uses dual stage isolators and hybrid combining techniques to provide Tx-Tx isolation and to minimise intermodulation (IM) impacts. The Rx system uses an ultra low noise preamplifier with user-selectable gain and excellent 3OIP performance, with a multi-way output divider to ensure optimum system receive sensitivity is available. Integral high quality bandpass filtering provides high Rx selectivity and Tx-Rx system isolation performance. Form-C relay outputs provide alarm notification of DC power or Rx LNA amplifier failure. The MSC is available in sub-bands covering VHF, UHF and 800MHz frequency ranges.


  • 2 channel capacity
  • 50W Tx input power (per channel)
  • 100% Tx Duty Cycle
  • Open-circuit antenna port VSWR protection
  • Ultra low noise receiver preamplifier
  • User-selectable Rx gain
  • DC power and Rx LNA Fail alarm monitoring
  • Compact 19in rack mounting
Frequency Range (MHz) 800-870
Tx Channel Capacity 2
Tx Input Power ≤ 50W per channel
Tx Duty Cycle ≤ 100% per channel
Tx-Tx Bandwidth 5MHz
Tx Insertion Loss  6dB typ
Tx-Tx Isolation > 60dB
Tx-Rx Isolation 70dB typ
Tx Input Return Loss 20dB typ.
Tx-Rx Separation 40MHz min
Rx Channel Capacity 2
Rx-Rx Bandwidth 5MHz
Rx System Gain 0dB to 30dB (in 1dB steps)
Rx LNA Noise Figure < 2dB (1.2dB typ.)
Rx Maximum Input Level -10dBm
Rx-Rx Isolation > 18dB
Rx Output Return Loss > 20dB
Impedance 50 ohms (all RF ports)
Alarms DC Supply Voltage Low, Rx LNA Fail
Alarm Outputs Dry Relay Form-C (N.C./N.O./CMN)
RF Connectors Tx = N (female) Rx = BNC (female)
DC Connector 2pin 5mm Pheonix (mating plug supplied)
Alarm Connector 3pin 5mm Pheonix (mating plug supplied)
Enclosure 3RU 19in Rack Mount (Black)
DC Power Requirements 11VDC to 28VDC 3.5W typ. (polarity protected)
IP Rating Indoor Use Only
Temperature Range -30° to 60° C (-122° to 140° F)
Dimensions (HxWxD) 133x483x430mm (5.23x19x17in)
Weight 15Kg (33lbs)
in else

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Shipping Weight (lbs.) 45
Shipping Dims (inches) 24x24x7