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RRF-220-NFF
220MHz Band Pass Filter for Railway applications

Rail Band Pass Filters Surge Protection

PolyPhaser’s RRF-220-NFF rail band pass filter is designed for 220 MHz wayside rail applications. The band pass filter series RRF-160-NFF and RRF-220-NFF are specifically designed for railroad PTC (Positive Train Control) systems and engineered to reduce interference issues by blocking unwanted signals due to co-location.

Features

  • Superior inband RF performance
  • Integrated surge protection
  • Weatherized
  • Bi-directional operation

Specifications for PolyPhaser RRF-220-NFF

Type
DC Block
Mount Type
Panel Mount
Standards
IEC 60529 IP67, Bellcore #TA-NWT-000487
Other Features
Insertion loss and return loss are at optimum levels to allow signal strength to remain high.
Connector
N
Surge Side Connector
N Female
Protected Side Connector
N Female
Frequency Range
217MHz - 223MHz
Turn On Voltage
90V ±20%
RF Power
100W Continuous
Insertion Loss
≤1.0 dB typical
Protocol/Application
PTC Class 1 Railroads
Dimensions (cm)
67.1 x 170.2 x 36
Dimensions (inches)
3.0 x 6.7 x 1.42

complete