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BPF 3/...-200-SHT

Band Pass FiltersBPF 3/...-200-SHT

Band-Pass Filter for the 130 MHz Band

Description

  • High power base station shortened band-pass filter for the 116 - 146 MHz range.
  • Due to the use of large ø200 mm cavities a high Q is achieved, resulting in a very narrow passband.
  • The large dimensions also mean a high power rating.
  • The SHT-version has only 600 mm cavity length.
  • Unloaded Q of a single cavity is approx. 3000.
  • High frequency stability on temperature and power.
  • 19” mounting brackets are available as an option.

Specifications

Electrical
Model BPF 3/1-200-SHT BPF 3/2-200-SHT BPF 3/3-200-SHT
Frequency 116 - 146 MHz
Max. Input Power 350 W @ 0.5 dB IL
150 W @ 2.0 dB IL		 350 W @ 1.0 dB IL
150 W @ 4.0 dB IL		 350 W @ 1.5 dB IL
150 W @ 6.0 dB IL
Insertion Loss Adjustable 0.5 - 2.0 dB Adjustable 1.0 - 4.0 dB Adjustable 1.5 - 6.0 dB
Impedance 50 Ω
Attenuation See figure 1 See figure 2 See figure 3
VSWR < 1.5:1
Mechanical
Connection(s) N(f)
Max. RPM 200 (on tuning rod)
Dimensions ø200 x 600 mm /
ø7.87 x 23.62 in.		 200 x 400 x 600 mm /
7.87 x 15.75 x 23.62 in.		 200 x 600 x 600 mm /
7.87 x 23.62 x 23.62 in.
Weight Approx. 4.6 kg / 10.14 lb. Approx. 10 kg / 22.05 lb. Approx. 14.5 kg / 31.97 lb.
Environmental
Operating temperature range -30 °C to +60 °C
Frequency Stability Approx. 1.5 ppm / °C

Ordering Designations

Model Product No.
BPF 3/1-200-SHT 200000983
BPF 3/2-200-SHT 200001163
BPF 3/3-200-SHT 200001890

Typical response curves

Figure 1

BPF 3 1 200 SHT curve GB

Figure 2

BPF 3 2 200 SHT curve GB

Figure 3

BPF 3 3 200 SHT Curve GB

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