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BPBR 2/...-125

Band-Pass/Band-Reject Filters for the 150 MHz Band

  • High power base station band-pass/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 pass/reject spacing.

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.
  • Mounted on 19” brackets.**

ORDERING DESIGNATIONS

TYPE PRODUCT NO.
BPBR 2/1-125 200001081
BPBR 2/2-125 200000959
BPBR 2/3-125 200001909

SPECIFICATIONS

ELECTRICAL
MODEL BPBR 2/1-125 BPBR 2/2-125 BPBR 2/3-125
FREQ. RANGE 140 - 175 MHz 140 - 175 MHz 140 - 175 MHz
MAX. INPUT
POWER
250 W 250 W 250 W
INSERTION LOSS See figure 1
(0.7 dB @
500 kHz)
See figure 2
(1.4 dB @
500 kHz)
See figure 3
(2.1 dB @
500 kHz)
ATTENUATION See figure 1 See figure 2 See figure 3
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
600 mm
L:125 x W:285 x
H:600 mm
L:125 x W:425 x
H:600 mm
WEIGHT Approx.
1.9 kg
Approx.
4 kg
Approx.
6.5 kg

TYPICAL RESPONSE CURVES

Figure 1
 
Figure 2
 
Figure 3

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