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Description

FM Filter 300 W

Selective band-pass filter for FM broadcasting applications in the 87.5–108 MHz frequency band. The filter is designed for transmitters with output power up to 300 W and provides suppression of unwanted signals outside the operating channel.

The cavity design with a high quality factor enables low insertion loss while maintaining high selectivity. The filter is designed especially for professional FM transmitters, broadcasting sites, and multi-transmitter systems where minimization of interference and intermodulation products is required.

Available versions

RAFF110-D33-300W – 2 × DIN 7-16 connector, dual cavity filter
RAFF110-D22-300W – 2 × N connector, dual cavity filter

RAFF110-T33-300W – 2 × DIN 7-16 connector, triple cavity filter
RAFF110-T22-300W – 2 × N connector, triple cavity filter

Main features

• frequency range: 87.5–108 MHz

• maximum input power: 300 W

• impedance: 50 Ω

• return loss S11 < -25 dB

• high selectivity

• low insertion loss

• robust mechanical construction

• individual tuning according to the required operating frequency

Applications

• FM broadcast transmitters

• small and medium-sized broadcasting systems

• FM channel combining systems

• transmitter output stage filtering

• protection of broadcasting systems against unwanted signals and products

Each filter is individually measured and tuned according to customer requirements.

Developed and manufactured in the Czech Republic
RAYTRA Microwave Devices