BRF 70/…-250

Band-Reject Filters for the 450 MHz Band

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BRF 70/...-250

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BRF 70/…-250
Electrical
Model
BRF 70/1-250BRF 70/2-250BRF 70/3-250
Frequency 380 – 470 MHz
Max. Input Power
350 W @ 0.5 dB IL
200 W @ 1.0 dB IL350 W @ 1.0 dB IL
200 W @ 2.0 dB IL350 W @ 1.5 dB IL
200 W @ 3.0 dB IL
1 dB Notch Bandwidth 1 % of fc
Impedance 50 Ω
Attenuation See diagram
VSWR < 1.5:1
Environmental
Frequency Stability 1.5 ppm/° C (approx.)
Operating temperature range -30 °C to +60 °C
Mechanical
Connection(s) N(f)
Historic Brand Procom
Dimensions
ø250 x 400 mm / ø9.84 x 15.75 in.L:250 x W:500 x H:400 mm / L:9.84 x W:19.68 x H:15.75 in.L:250 x W:750 x H:400 mm / L:9.84 x W:29.52 x H:15.75 in.
Weight
Approx. 2.8 kg / 6.17 lb.Approx. 5.2 kg / 11.46 lb.Approx. 9.6 kg / 21.16 lb.
  • High power base station band-reject filters for the 380 – 470 MHz range.
  • The use of large ø250 mm cavities means a high Q,
    resulting in a very narrow notch bandwidth.
  • 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.

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Model Product No. Model Add To Quote

BRF 70/1-250

 200001235 BRF 70/1-250

BRF 70/2-250

 200001600 BRF 70/2-250

BRF 70/3-250

 200001668 BRF 70/3-250

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Additional Data

TYPICAL RESPONSE CURVES

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