BRF 2/…-125

Band-Reject Filters for the 150 MHz Band

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BRF 2/...-125

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BRF 2/…-125
Electrical
Model
BRF 2/1-125BRF 2/2-125BRF 2/3-125
Frequency 140 – 175 MHz
Max. Input Power
300 W @ 0.5 dB IL
175 W @ 1.0 dB IL300 W @ 1.0 dB IL
175 W @ 2.0 dB IL300 W @ 1.5 dB IL
175 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
ø125 x 600 mm / ø4.92 x 23.62 in.L:125 x W:285 x H:600 mm / L:4.92 x W:11.22 x H:23.62 in.L:125 x W:425 x H:600 mm / L:4.92 x W:16.73 x H:23.62 in.
Weight
Approx. 1.9 kg / 4.19 lb.Approx. 4 kg / 8.82 lb.Approx. 6.5 kg / 14.33 lb.
  • High power base station band-reject filters for the 140 – 175 MHz range.
  • The use of large ø125 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. 4500.
  • High frequency stability on temperature and power.
  • Mounted on 19” brackets.

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Model Product No. Max. Input Power Add To Quote

BRF 2/1-125

 200001577 300 W @ 0.5 dB IL 175 W @ 1.0 dB IL

BRF 2/2-125

 200001936 300 W @ 1.0 dB IL 175 W @ 2.0 dB IL

BRF 2/3-125

 200001937 300 W @ 1.5 dB IL 175 W @ 3.0 dB IL

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Typical Response Curves