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DPF 70/...-125

Duplex FiltersDPF 70/...-125

Duplex Filters for the 450 MHz Band

Description

  • High power base station duplex filters for the 400 – 475 MHz range.
  • The use of large ø125 mm cavities means a high Q,
    resulting in a very small duplex spacing.
  • The large dimensions also mean a high power rating.
  • High frequency stability on temperature and power.
  • Mounting brackets for 19” mounting included.
  • Please specify the frequencies for Tx and Rx when ordering.

Specifications

Electrical
Model DPF 70/22-125 DPF 70/33-125
Frequency 400 - 470 MHz 400 - 470 MHz
Max. Input Power 250 W @ 1 dB IL 250 W @ 1.5 dB IL
Min. Duplex Spacing 0.5 MHz 0.5 MHz
Insertion Loss 0.5 MHz < 2.5 dB
2 MHz < 2.0 dB		 0.5 MHz < 2.5 dB
2 MHz < 2.0 dB
Impedance 50 Ω 50 Ω
Attenuation 0.5 MHz > 45 dB
2 MHz > 60 dB		 0.5 MHz > 50 dB
2 MHz > 75 dB
VSWR < 1.5:1 < 1.5:1
Mechanical
Connection(s) N(f) N(f)
Dimensions 260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in. 260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in.
Weight Approx. 7 kg / 15.43 lb. Approx. 8.6 kg / 18.96 lb.
Environmental
Operating temperature range -30°C to +60°C -30°C to +60°C
Frequency Stability 0.8 ppm/° C (approx.) 0.8 ppm/° C (approx.)

Diagram and Mounting

TYPICAL RESPONSE CURVES @ 2 MHz DUPLEX SPACING

TYPICAL RESPONSE CURVES @ 2 MHz DUPLEX SPACING

Ordering Designations

Model Product No.
DPF 70/22-125 200000271
DPF 70/33-125 200000287
DPF 70/44-125 200000435

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