to product finder

Band Pass FiltersBPF 118-137

Band-Pass Filter for the air band 118 - 137 MHz

Description

BPF 118-137 is an LC band-pass filter.
Allows the whole 118 - 137 MHz band to pass.
Series coupled high/low pass filter design.
Chebychev characteristic ensures low insertion loss and high out-of-band rejection.
Can be used as transmitter filter to prevent out-of-band and harmonics radiation.
Can be used as a preselector filter to protect a receiver against interferences from transmitters normally being outside the band-pass range.
Very small dimensions, mounted in a 48 x 50 mm box.
FME-male connectors for easy and handy coupling to the surroundings.
Also available with TNC(f), BNC(f) or SMA(f) connectors types.
Provided with dual adhesive pad for quick installation.
BPF 118-137 is lacquered with black vinyl enamel to avoid corrosion.

Specifications

Electrical

Model

BPF 118-137

Frequency

118 - 137 MHz

Max. Input Power

15 W AM, 100% mod.

Insertion Loss

Max. 1.2 dB

Impedance

50 Ω

Reject Attenuation

> 35 dB @ 0 – 90 MHz and
174 – 1000 MHz
-see curves

VSWR

< 1.5:1

Bandwidth

19 MHz

Mechanical

Connection(s)

FME(m), TNC(f), BNC(f) or SMA(f)

Dimensions

FME(m):
50 x 21 x 48 mm / 1.97 x 0.83 x 1.89 in. (incl. conn.)

TNC(f), BNC(f), SMA(f):
50 x 21 x 52 mm / 1.97 x 0.83 x 2.05 in. (incl. conn.)

Weight

Approx. 0.06 kg / 0.13 lb.

Environmental

Operating temperature range

-30 °C to +60 °C

Ingress Protection

IP41

Diagram and Mounting

TYPICAL RESPONSE CURVES

INSERTIONS LOSS (dB)

MECHANICAL OUTLINE

Ordering Designations

Model	Product No.
BPF 118-137 FME(m)	200001837
BPF 118-137 TNC(f)	200002737
BPF 118-137 BNC(f)	200001160
BPF 118-137 SMA(f)	200002736

Typical response curve

Insertions Loss (dB)

Mechanical Outline for FME(m)

All dimensions are given in mm [in.]

Mechanical Outline for TNC(f), BNC(f) or SMA(f)