Pass/Reject FiltersBPBR 3/...-250

Band-Pass/Band-Reject Filters for the 130 MHz Band

Description

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

Specifications

Electrical
Model BPBR 3/1-250 BPBR 3/2-250 BPBR 3/3-250
Frequency 116 - 146 MHz
Max. Input Power 300 W @ 0.5 dB IL
125 W @ 2.0 dB IL
300 W @ 1.0 dB IL
125 W @ 4.0 dB IL
300 W @ 1.5 dB IL
125 W @ 6.0 dB IL
Insertion Loss Adjustable 0.3 - 2.0 dB Adjustable 0.6 - 4.0 dB Adjustable 0.9 - 6.0 dB
Impedance 50 Ω
VSWR < 1.5:1
Mechanical
Connection(s) N(f)
Dimensions ø250 x 765 mm
ø9.84 x 30.11 in.
L : 250 x W : 500 x H : 765 mm
L : 9.84 x W : 19.68 x H : 30.11 in.
L : 250 x W : 750 x H : 765 mm
L : 9.84 x W : 29.52 x H : 30.11 in.
Weight Approx. 6 kg / 13.23 lb. Approx. 12.3 kg / 27.12 lb. Approx. 18.6 kg / 41.01 lb.
Environmental
Operating temperature range -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C

Ordering Designations

Model Product No.
BPBR 3/1-250 200001088
BPBR 3/2-250 200001086
BPBR 3/3-250 200000864