66-13-44 (4) 4-inch Cavity Duplexer

Frequency Range: 138-174 MHz

Ideal for high power, close frequency separation installations

Designed for combining two frequencies that require extra isolation. Can also be used as efficient pre-selectors
Temperature compensated to ensure frequency stability
High attenuation to minimize desense and interference from adjacent systems
Adjustable loops

Order Information	Frequency	Wall Mount	4 Cavities
66-13-44	138-174 MHz	66-13-44WM	66-13-44

Description

Our 4 cavity 4-inch cavity duplexers are ideal for high power, close frequency separation installations. These filters are designed for combining two frequencies or can be used as efficient pre-selectors.
If higher levels of isolation are required, please consider using 6 cavity configurations. Selectivity can be determined by the field-adjustable capacitors.
Each cavity is temperature compensated for operation between -40ºC to +60ºC and has a gold alodine finish, silver-plated loops, and plated tuning rods.

Additional information

Frequency Range, MHz	138-174
Frequency Spacing Min., MHz	0.5
Cavity Diameter, in	(4) – 4" Square
Continuous Power Input, Watts	350
Connectors	N Female
Insertion Loss, dB	1.5
Channel Isolation, dB	70
VSWR	1.2:1
Temperature Range, ºC	– 40 to +60
Max Length, in (H x W x D)	31 x 19 x 4
Weight, lbs (kg)	30 (13.6)
Mounting	19" Rack Mount