Duplexers

VHF Pass-Reject Duplexers
These VHF duplexers use a high Q cavity to provide superior band-pass and band-reject characteristics. It consists of four and six 5” OD band-pass-reject cavities interconnected with double shielded coaxial cable. Quality materials are used throughout the duplexer to assure top performance and long life. The duplexer is factory tuned to the exact transmit and receive frequencies prior to shipment. The duplexer can be mounted in any position but is normally mounted vertically, with tuning rods up.
Specifications:
Tuning range:
144-174 MHz
Minimum Frequency Separation:
0.6 MHz or more
Maximum Power Input:
350 Watts
Insertion Loss (0.6 MHz separation) 4-Cavity:
1.0 dB
Insertion Loss (0.6 MHz separation) 6-Cavity:
2.0 dB
Attenuation (0.6 MHz separation) 4-Cavity:
>77 dB
Attenuation (0.6 MHz separation) 6-Cavity:
>100 dB
Maximum VSWR (50 ohms):
1.5 to 1
Temperature Range:
-30ºC to +70ºC
Dimensions:
11” x 19” x 28”
Connector Terminations:
Type N Females
Finish:
Grey Enamel
Net Weight 4-Cavity:
22 lbs
Net Weight 6-Cavity:
29 lbs

 

Compact VHF Pass-Reject Duplexers
This duplexer is a high performance compact design, ideal for amateur 2-meter applications when space is a premium. It uses a high Q cavity to provide superior band-pass and band-reject characteristics. It consists of four 5” cavities interconnected with double-shielded coaxial cable. Quality materials are used throughout the duplexer to assure top performance and long life. The duplexer is factory tuned to the exact transmit and receive frequencies prior to shipment. The duplexer fits a standard 19” rack, with a total height of 5¼”.
Specifications:
Tuning range:
 144-174 MHz
Minimum Frequency Separation:
 0.6 MHz or more
Maximum Power Input:
 350 Watts
Insertion Loss (0.6 MHz separation):
 1.5 dB
Attenuation (0.6 MHz separation):
 80 dB
Maximum VSWR (50 ohms):
 1.5 to 1
Temperature Range:
 -30ºC to +60ºC
Dimensions:
 5¼” x 19” x 15”
Connector Terminations:
 UHF Female
Finish:
 Grey Enamel
Net Weight:
 19 lbs

 

UHF Pass-Reject Duplexers
This uses a high Q cavity to provide superior band-pass and band-reject characteristics. It consists of four or six 5” cavities interconnected with double-shielded coaxial cable. Quality materials are used throughout the duplexer to assure top performance and long life. The duplexer is factory tuned to the exact transmit and receive frequencies prior to shipment. The duplexer fits into a standard 19” rack, with a total height of 5¼”.
Specifications:
Tuning range:
 406-512 MHz
Minimum Frequency Separation:
 3.0 MHz or more
Maximum Power Input:
 250 Watts
Insertion Loss (3.0 MHz separation) 4-Cavity:
 1.0 dB
Insertion Loss (3.0 MHz separation) 6-Cavity:
 1.75 dB
Attenuation (3.0 MHz separation) 4-Cavity:
 > 85 dB
Attenuation (3.0 MHz separation) 6-Cavity:
 > 95 dB
Maximum VSWR (50 ohms):
 1.2 to 1
Temperature Range:
 -30ºC to +70ºC
Dimensions 4-Cavity:
 5¼” x 19” x 10½”
Dimensions 6-Cavity:
 10½” x 19” x 10½”
Connector Terminations:
 Type N Female
Finish:
 Gray Enamel
Net Weight 4-Cavity:
 16 lbs
Net Weight 6-Cavity:
 26 lbs

 

Web Author: Eric Andrew
Copyright ©1997-2005 by Pacific Research Solutions - ALL RIGHTS RESERVED
Revised: July 06, 2005