° Generals. This KN 100 FM amplifier is designed to operate on 87.5 - 108 MHz frequency range for FM radio broadcasting appliances, giving up to 100 W of output power in continuous service. It is used as exciter in the PFS Series FM transmitter.

° COLD FET™ technology. This revolutionary technology, a DB Elettronica international patent, is used in the KN 100 amplifier to optimize the input matching of MOS-FET transistors in order to obtain broadband amplification stages without any RF component. This means:
- high RF efficiency > 83%
- lower heating
- higher devices safety
- higher total reliability
- low AC power consumption

° Extraordinary RF efficiency: the COLD-FET™ technology allows to obtain from the amplifiers the full power rating reducing of almost 20% the devices recommended operating DC voltage and current.

° Uninterrupted service. A proportional foldback protection circuit reduces the output power without any on-air interruption, keeping the RF devices always within the safety conditions in case of:
- load mismatching
- environmental over-temperature
- cooling failure
- failure in one or more amplification modules
- failure in power supply modules