Band Pass FiltersBPF 3/...-250

Band-Pass Filters for the 130 MHz Band

Description

  • High power base station band-pass filters for the 116 - 146 MHz range.
  • The use of large ø250 mm cavities means a high Q, resulting in a very narrow passband.
  • The large dimensions also mean a high power rating.
  • Unloaded Q of a single cavity is better than 8000.
  • High frequency stability on temperature and power.
  • 19” mounting brackets are available as an option.

Specifications

Electrical
Model BPF 3/1-250 BPF 3/2-250 BPF 3/3-250
Frequency 116 - 146 MHz
Max. Input Power 350 W @ 0.5 dB IL
150 W @ 2.0 dB IL
350 W @ 1.0 dB IL
150 W @ 4.0 dB IL
350 W @ 1.5 dB IL
150 W @ 6.0 dB IL
Insertion Loss Adjustable 0.4 - 2.0 dB Adjustable 1.0 - 4.0 dB Adjustable 1.5 - 6.0 dB
Impedance 50 Ω
VSWR < 1.5:1
Mechanical
Connection(s) N(f)
Dimensions ø250 x 765 mm
ø9.84 x 30.19 in.
250 x 400 x 765 mm
9.84 x 15.75 x 30.19 in.
250 x 600 x 765 mm
9.84 x 23.62 x 30.19 in.
Weight Approx. 6 kg / 13.23 lb. Approx. 12.2 kg / 26.90 lb. Approx. 18.4 kg / 40.57 lb.
Environmental
Operating temperature range -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C

Ordering Designations

Model Product No.
BPF 3/1-250 200000985
BPF 3/2-250 200001165
BPF 3/3-250 200001891