Home | PZ
​Tunable Multicouplers
Tunable Multicoupler Med Image

The TMC-100/160 are Tunable Multicouplers enabling up to four transceivers to operate simultaneously in transmission and reception mode using a common antenna. The four digitally controlled bandpass filters within the multicouplers cover the VHF or UHF communication band. Each filter is a three pole design to provide high selectivity with a nominal 3 dB bandwidth of 0.7 (VHF), 0.3 (UHF), 1.0 or 2.0%. Each filter is controlled remotely through an independent digital interface. When a frequency command is received control circuitry drives a stepper motor to properly position the filter shaft. The multicouplers may be optimized for custom interface, mechanical and performance requirements. 

  • Specifications
Part Number: TMC-100/160
Operation: Half duplex, transmit & receive, four-port multicoupler
Frequency Coverage: 100 to 160 MHz
Bandwidth: 0.7, 1.0 or 2.0% of Fc, nominal, -3 dB
Insertion Loss: 2.5,2.0 or 1.5 dB, respectively, max. @ min. Co-channel separation
Co-channel Separation for
50 dB isolation:
+3.0, 4.0 or 8.0%, respectively, min.
Power Handling: 60 Watts avg., 160 Watts pk. per channel
Minimum Channel Separation: 4 MHz
Shape Factor (30 dB / 3 dB): 3.1 nominal
Ultimate Isolation: 80 dB, min.
Tuning Speed: 10 sec. max.
Power: 24 VDC Input
Standby: 24 Watts
Peak: 200 Watts
Weight: 145 lbs. nominal / 65.78 kg
Operating Temperature Range:  0° to +50°C
Size (in. / mm):  20 x 20 x 25 / 508 x 508 x 635



Part Number: TMC-225/400
Operation: Half duplex, transmit & receive, four-port multicoupler
Frequency Coverage: 225 to 400 MHz
Bandwidth: 0.3, 1.0 or 2.0% of Fc, nominal, -3 dB
Insertion Loss: 2.5,2.0 or 1.5 dB, respectively, max. @ min. Co-channel separation
Co-channel Separation for 
50 dB isolation:
+2.0, 4.0 or 8.0%, respectively, min.
Power Handling: 100 Watts pk. per channel
Minimum Channel Separation: 5 MHz
Shape Factor (30 dB / 3 dB): 3.5:1 nominal, 4.5:1 max.
Ultimate Isolation: 80 dB, min.
Tuning Speed: 10 sec. max.
Power: 24 VDC Input
Standby: 24 Watts
Peak: 200 Watts
Weight: 145 lbs. nominal / 65.78 kg
Operating Temperature Range:  0° to +50°C
Size (in. / mm):  20 x 20 x 25 / 508 x 508 x 635


0° to +65°C