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DPF 70/22-200

Duplex FiltersDPF 70/22-200

Duplex Filter for the 450 MHz Band

Description

  • High power base station duplex filter for the 400 – 470 MHz range.
  • The use of large ø200 mm cavities means a high Q,
    resulting in a small duplex spacing.
  • The large dimensions also mean a high power rating.
  • Unloaded Q of a single cavity is approx. 4500.
  • High frequency stability on temperature and power.
  • Mounted on 19” brackets.

Specifications

Electrical
Model DPF 70/22-200
Frequency 406 - 470 MHz
Max. Input Power 300 W @ 1.0 dB
Insertion Loss 0.25 MHz @ 1.5 dB
0.5 MHz @ 1.2 dB
1.0 MHz @ 1.0 dB
Tx Noise Suppression on Rx-Freq. / Rx Isolation on Tx-Freq. 0.25 MHz @ 50 dB
0.5 MHz @ 60 dB
1.0 MHz @ 70 dB
Mechanical
Connection(s) N(f)
Dimensions 410 x 410 x 300 mm /
16.14 x 16.14 x 11.81 in.
Weight Approx. 8.6 kg / 18.96 lb.
Environmental
Operating temperature range -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C

Diagram and Mounting

TYPICAL RESPONSE CURVES FOR 1 MHz DUPLEX SPACING

Ordering Designations

Model Product No.
DPF 70/22-200 200000283

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