PM500EF it’s an RF Power Amplifier designed for Medium Wave Broadcast Radio Band transmitters. PM500EFs output power is 500 Watt PEP ( 125 Watt Carrier ) at 50 Ohm load.
This PA amplifies the input RF signal typically by 17dB, it operates at 48V / 17 Amp. max power supply.The operating class is B Push-Pull there are on-board three pole low pass filterThe Amplifier, consists of one Push-Pull amplifying stage with active
component 4 MOS – FETs two in parallel and two in push-pull. Input – output resistance is 50 Ohm achieved by wide band transformers.
Palstar QRO Dummy Load DL5K
Like its predecessor DL2K, the Palstar DL5K was born out of the need for a dummy load that allows for more time to tune your amp at high power. Most dummy loads don't have the real world power...