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FM Constant Impedance Combiner, 30kW, 3 Pole

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Description

This balanced FM combiner employing broadband hybrids and FM tunable filters enable the combining of FM transmitters up to 30 kW with a total output power of up to 180 kW. If you have demands on low losses with close frequency allocation this is the right product.

Product Features:

  • Flexible modular design
  • Low insertion loss
  • Retunable
  • 700kHz channel spacing

Data in tables is typical. The combiner can be tuned for other specifications or bandwidths, please contact us for a specification designed for your requirements. All average power values and technical data refer to an ambient temperature of + 20-25 °C with normal air flow. The product will have a maximum surface temperature of + 60 °C. Maximum power capacity may be lower depending on channel allocation.

Specifications:

ARTICLE CI23C53A-00BB444 CI23C53B-00BB444 CI23C53A-00BC466 CI23C53B-00BC466
FREQUENCY 87 – 108 MHz 87 – 108 MHz 87 – 108 MHz 87 – 108 MHz
IMPEDANCE 50 Ohm 50 Ohm 50 Ohm 50 Ohm
NARROWBAND INPUT
MAXIMUM INPUT POWER 25 kW 30 kW 25 kW 30 kW
INPUT VSWR <1.07 (>30 dB) <1.07 (>30 dB) <1.07 (>30 dB) <1.07 (>30 dB)
INPUT CONNECTOR 4 1/2” unflange 4 1/2” unflange 4 1/2” unflange 4 1/2” unflange
INSERTION LOSS
Centre frequency <0.35 dB <0.35 dB <0.35 dB <0.35 dB
±100 kHz <0.35 dB <0.35 dB <0.35 dB <0.35 dB
WIDEBAND INPUT
INPUT VSWR <1.07 (>30 dB) <1.07 (>30 dB) <1.07 (>30 dB) <1.07 (>30 dB)
INPUT CONNECTOR 4 1/2” unflange 4 1/2” unflange 6 1/8” unflange 6 1/8” unflange
INSERTION LOSS
Centre frequency <0.15 dB <0.15 dB <0.15 dB <0.15 dB
±100 kHz <0.10 dB <0.10 dB <0.10 dB <0.10 dB
ISOLATION AND CHANNEL SPACING
NARROWBAND – WIDEBAND
>36 dB >36 dB >36 dB >36 dB
WIDEBAND – NARROWBAND
±0.8 MHz from narrowband Cf >50 dB >50 dB >50 dB >50 dB
±1.5 MHz from narrowband Cf >65 dB >65 dB >65 dB >65 dB
MIN CHANNEL SPACING
Lower spacing on request 0.8 MHz 0.8 MHz 0.8 MHz 0.8 MHz
OUTPUT
MAXIMUM OUTPUT POWER
90 kW 90 kW 180 kW 180 kW
OUTPUT CONNECTOR 4 1/2” unflange 4 1/2” unflange 6 1/8” unflange 6 1/8” unflange
DIMENSIONS AND WEIGHT
DIMENSIONS (L x W x H)
1660 x 1011 x 1872 mm 1660 x 1011 x 1872 mm 2020 x 1100 x 1770 mm 2020 x 1100 x 1770 mm
WEIGHT 525kg  525kg  525kg  525kg
Aluminum resonators Silver plated resonators Aluminum resonators Silver plated resonators

View the full specifications here.