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144-148 MHz
Economic pass/reject duplexer
DPRE4-6VL

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DPRE4-6VL
Electrical specifications
Model DPRE4-6VL
Operating frequency band, MHz 144-148
Insertion loss (adjustable) not more, dB 1.3
Frequency separation TX/RX (min), MHz 0.4
Impedance, Ohm 50
Isolation, not less, dB 97
VSWR, not more than 1.5
Input power, not more, W 300
Temperature range, В°C from -30 to +60
Cavity electrical length 1/4О»
Mechanical specifications
Model DPRE4-6VL
Diameter, mm (ins.) 105x105 (4")
Weight, kg 24
Connector N-female
Mount to 19-inch rack present
Length/Width/Depth, mm 700x480x215

These new economic models distinguish from the traditional band reject duplexers as the coaxial tripling elements are changed by the whole-soldered nodes. The filter has a construction that ensures a high thermo-stability due to Invar alloy. A high quality-factor of each cavity is provided by means of application of the pure electro-technical copper and by the silvering of the contacting parts. An adjusting is being implemented on the modern network spectrum analyzers manufactured by Aglient Technologies and Rohde&Schwartz.

Typical duplexers response curves

DPRE4-6VL