MS1314-0405-SP Features:
The MiniSystem Combiner (MSC) comprises a transmitter combiner using dual-stage isolators and innovative hybrid combining techniques to provide excellent Tx-Tx isolation and to minimise intermodulation (IM). An integral receive multicoupler uses a low-noise preamplifier featuring user-selectable gain and excellent 3OIP performance to ensure optimum system receive sensitivity is available.
High quality bandpass filtering provides Rx preselectivity and Tx-Rx system isolation performance. Form-C relay alarm outputs provide alarm notification of DC power or Rx LNA amplifier failure.
• 4 channel capacity
• 50W Tx input power (per channel)
• 100% Tx Duty Cycle
• Open-circuit antenna port VSWR protection
• Low-noise receiver preamplifier (LNA)
• User-selectable Rx gain
• DC power and Rx LNA Fail alarm monitoring
• Compact 19in rack mounting
The MiniSystem Combiner (MSC) comprises a transmitter combiner using dual-stage isolators and innovative hybrid combining techniques to provide excellent Tx-Tx isolation and to minimise intermodulation (IM). An integral receive multicoupler uses a low-noise preamplifier featuring user-selectable gain and excellent 3OIP performance to ensure optimum system receive sensitivity is available.
High quality bandpass filtering provides Rx preselectivity and Tx-Rx system isolation performance. Form-C relay alarm outputs provide alarm notification of DC power or Rx LNA amplifier failure.
• 4 channel capacity
• 50W Tx input power (per channel)
• 100% Tx Duty Cycle
• Open-circuit antenna port VSWR protection
• Low-noise receiver preamplifier (LNA)
• User-selectable Rx gain
• DC power and Rx LNA Fail alarm monitoring
• Compact 19in rack mounting
| Frequency Range | 138-148 MHz |
| Tx Channel Capacity | 4 |
| Tx Input power per channel | ≤ 50W per channel |
| Tx Duty Cycle | ≤ 100% per channel |
| Tx-Tx Bandwidth | 1.0MHz |
| Tx Insertion Loss (typical) | 9dB typ. |
| Tx-Tx Isolation dB | > 60dB |
| Tx-Ant Isolation | > 50dB |
| IP Rating | Indoor Use Only |
| RF Connectors | Tx = N (female) Rx = BNC (female) |
| Tx-Rx Isolation | 65dB min. (70dB typ.) |
| Tx Input Return Loss | 20dB typ. |
| Tx-Rx Separation | 4MHz min. |
| Rx Channel Capacity | 4 |
| Rx-Rx Bandwidth | 1.2MHz |
| 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 |
| Alarms | DC Supply Voltage Low, Rx LNA Fail |
| Alarm Outputs | Dry Relay Form-C (N.C./N.O./CMN) |
| Enclosure | 3RU 19in Rack Mount (Black) |
| DC Power Requirements | +11VDC to +28VDC 3.5W typ. (polarity protected) |
| Impedance | 50 ohms (all RF ports) |
| DC Connector | 2pin 5mm Phoenix (mating plug supplied) |
| Alarm Connector | 3pin 5mm Phoenix (mating plug supplied) |
| Temperature Range | - 30 C to 60° C / - 22° F to 140° F |
