Duplex FiltersDPF 2/...-125

Duplex Filter for the 160 MHz Band

Description

  • High power base station duplex filter for the 140 – 175 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 2/22-125 DPF 2/33-125 DPF 2/33-125
Frequency 140 - 175 MHz
Max. Input Power 300 W
Min. Duplex Spacing 800 kHz 600 kHz 500 kHz
Insertion Loss < 1.0 dB < 1.5 dB < 2.0 dB
Impedance 50 Ω
Attenuation 70 dB 90 dB 90 dB
VSWR < 1.5:1
Cavities 4 6 6
Mechanical
Connection(s) N(f)
Dimensions 260 x 483 x 600 (700) mm (incl. adjustment bolts) /
10.24 x 19.02 x 23.62 (27.56) in.
Weight Approx. 8 kg / 17.64 lb. Approx. 14 kg / 30.86 lb. Approx. 14 kg / 30.86 lb.
Environmental
Operating Temperature Range -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C

Diagram and Mounting

Typical Response curve @ 0.8 MHz Duplex Spacing

Typical Response curve @ 0.6 MHz Duplex Spacing

Ordering Designations

Model Product No.
DPF 2/22-125 200000273
DPF 2/33-125 200000270