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BRF 900/...-125

Band-Pass/Band-Reject Filters for the 900 MHz Band

  • High power base station band-reject filters for the 890 – 960 MHz range.
  • The use of large ø125 mm cavities means a high Q,
    resulting in a very narrow notch bandwidth.

DESCRIPTION

  • 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.
  • 19” mounting brackets are available as an option.

ORDERING DESIGNATIONS

TYPE PRODUCT NO.
BRF 900/1-125 200001601
BRF 900/2-125 200001946
BRF 900/3-125 200001947

SPECIFICATIONS

ELECTRICAL
MODEL BRF
900/1-125
BRF
900/2-125
BRF
900/3-125
FREQ. RANGE 890 - 960 MHz 890 - 960 MHz 890 - 960 MHz
MAX. INPUT
POWER
300 W @
0.5 dB IL
175 W @
1.0 dB IL
300 W @
1.0 dB IL
175 W @
2.0 dB IL
300 W @
1.5 dB IL
175 W @
3.0 dB IL
1 dB NOTCH BANDWIDTH 1 ‰ of fc 1 ‰ of fc 1 ‰ of fc
IMPEDANCE Nom. 50 Ω Nom. 50 Ω Nom. 50 Ω
SWR < 1.5 < 1.5 < 1.5
MECHANICAL
TEMP.
RANGE
RH 0-90%
non-condensing
–30° C →
+60° C
–30° C →
+60° C
–30° C →
+60° C
FREQ.
STABILITY
Approx. 1.5
ppm/° C
Approx. 1.5
ppm/° C
Approx. 1.5
ppm/° C
CONNECTORS N-female N-female N-female
DIMENSIONS ø125 x
200 mm
L:125 x W:250
x H:200 mm
L:125 x W:375
x H:200 mm
WEIGHT Approx.
0.7 kg
Approx.
1.5 kg
Approx.
2.5 kg

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