Pass/Reject FiltersBPBR 2/...-125

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

Description

  • 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.
  • 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.**

Specifications

Electrical
Model BPBR 2/1-125 BPBR 2/2-125 BPBR 2/3-125
Frequency 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)
Impedance Nom. 50 Ω Nom. 50 Ω Nom. 50 Ω
Attenuation See figure 1 See figure 2 See figure 3
VSWR < 1.5 < 1.5 < 1.5
Mechanical
Connection(s) N(f) N(f) N(f)
Dimensions ø125 x 600 mm
ø4.92 x 23.62 in.
125 x 285 x 600 mm
4.92 x 1.22 x 23.62 in.
125 x 425 x 600 mm
4.92 x 16.73 x 23.62 in.
Weight Approx. 1.9 kg / 4.18 lb. Approx. 4 kg / 8.8 lb. Approx. 6.5kg / 14.33 lb.
Environmental
Operating temperature range -30 °C to +60 °C -30 °C to +60 °C -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C Approx. 1.5 ppm / °C Approx. 1.5 ppm / °C

Ordering Designations

Model Product No.
BPBR 2/1-125 200001081
BPBR 2/2-125 200000959
BPBR 2/3-125 200001909

Mounting Note

Other cavity mounting options available:
//amphenolprocom.com/images/PDF/Cavity_Mounting_Options.pdf

Typical Respons Curves

Figure 1

BPBR 2 1 125 insertion kurve GB

Figure 2

BPBR 2 2 125 insertion kurve GB

Figure 3

BPBR 2 3 125 insertion kurve GB