Low Noise Block downconverter Kathrein KEL 444

The Kathrein KEL 444 Low Noise Block downconverter receives satellite signals in the 10.7 - 12.75 GHz frequency range and converts them to lower intermediate frequencies for further processing by a receiver. The unit combines a compact feedhorn with an integrated LNB body, offering a lightweight and space-saving solution for satellite reception where a small footprint and dependable signal conversion are required.

Advantages

The compact design with a 4 cm feedhorn diameter and modest dimensions (131 mm width, 108 mm depth) reduces dish blockage and simplifies installation on small to medium satellite reflectors. The LNB provides stable performance across the specified Ku-band frequency range and uses a standard F-type RF connector for compatibility with common satellite cabling. Low current consumption (225 mA) and a weight of 340 g make the unit suitable for installations where power and mechanical loading are considerations. Available in black and silver finishes to match different antenna setups.

Suitable for (tasks / use cases)

Key specifications

How to use

Mount the Kathrein KEL 444 to the antenna feed arm or bracket according to the dish manufacturer’s instructions, ensuring the feedhorn is aligned with the dish focal point. Connect the RF output to the satellite receiver or multiswitch using quality coaxial cable terminated with an F-type connector. Provide power from the receiver or an external power inserter respecting the device’s nominal current draw. Perform a signal scan and fine-tune the dish alignment for optimal signal level and quality.

Recommendations

For reliable long-term operation, use low-loss coaxial cable, secure all connectors against moisture with appropriate sealing, and avoid excessive bending near the connector. When replacing an existing LNB, confirm mechanical compatibility with the dish feed arm and re-check dish alignment after installation to ensure best reception within the 10.7–12.75 GHz band.