30-48 MHz Narrowband duplexers DPF8-4LB, DPF8-6LB : IK-Telecom
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30-48 MHz
Narrowband duplexers DPF8-4LB, DPF8-6LB

30-48 MHz  Narrowband duplexers DPF8-4LB, DPF8-6LB
Electrical specifications
Model DPF8-4LB(L) DPF8-4LB(H) DPF8-6LB(L) DPF8-6LB(H)
Operating Frequency
band, MHz
30-40 38-48 30-40 38-48
Insertion loss
(adjustable) not more, dB
1.5 1.5 2 2
Frequency separation
TX/RX (min), MHz
3 3 1 1
Impedance, Ohm 50 50 50 50
Isolation, not less, dB 55 55 75 75
VSWR, not more than 1.5 1.5 1.5 1.5
Input power, not more, W not more than 200
Temperature Range, °C from -30 to +60
Cavity electrical length 1/4λ
Mechanical specifications
Model DPF8-4LB(L) DPF8-4LB(H) DPF8-6LB(L) DPF8-6LB(H)
Diameter, mm (ins.) 200x200 (8"x8")
Weight, kg 77,5 67,5 112,5 101,5
Connector N-female
Mount to 19-inch rack yes
Length/Width/Depth, sm 40x48x278 40x48x248 60x48x278 60x48x248

Typical duplexers response curves

DPF8-4LB

DPF8-6LB

Finland, Pulsa