EMR SYS Series 9U Compact Combining System, 150-174 MHz

EMR SYS Series Compact Combiners are single antenna systems including a transmitter combiner, receiver multicoupler and antenna duplexer. Using hybrid-ferrite technology a wide variety of difficult to combine frequencies can be shared on a common antenna. These systems are available in 25W, 50W and 100W versions delivered ready for operation with
no on-site tuning or adjustment required. Contact the factory for systems in different frequency bands with narrowed or expanded filter bandwidths and complex specialized combining.

Electrical Specifications

• Frequency Band: 150-174 MHz
• Number of Channels: 4
• Power Per Channel (Max.): 100 W
• Insertion Loss Tx (Typ.): 8.75 dB
• Passband Tx/Rx: 600 kHz
• Return Loss I/O (Max.): 20 / 18 dB
• Stopband Tx-Rx: > 4 MHz
• Isolation Ant-Tx (Min. / Typ.): 60 / 70 dB
• Isolation Tx-Tx (Min. / Typ.): 80 / 90 dB
• Isolation Tx-Rx (Min. / Typ.): 70 / 80 dB
• Isolation Rx-Tx (Min. / Typ.): 70 / 80 dB
• Rx Multicoupler Amp: Bipolar
• Amplifier Gain (Max.): 38 dB @ 160 MHz
• Amplifier Gain Adjust: Variable
• Amplifier Current Draw: 200 mA
• Amplifier Bias Voltage: 13.6 VDC
• Amplifier Noise Figur:e 2.8 dB
• System Voltage: 100-240 VAC (Optional 12 / 24 / 48 VDC)
• System NF (Typ.): 5.0 dB
• Tx Bandpass Filter: Optional
• Impedance (Nom.): 50 Ω
• RF Connectors: BNC Female (Rx), N Female (Ant.), N Female (TX)