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Linear Power Amplifier for the 23 cm Band MKU PA 13500 CU

Big power, high efficiency and best linearity are achieved by our high power amplifier for the 23cm band. In comparison to tube power amplifiers, the new LDMOS transistors need a supply of only +26 V or 28V. High voltage transformers, waiting for the tube warm-up and retuning of the tube are the past! Safe operation is guaranteed by the internal overheat protection. The built-in sequencer can be used to control other devices like preamplifiers or coaxial relays. An output power of 1 kW is achieved by combining two MKU PA 13500 CU amplifiers. This is ideal for EME (earth-moon-earth operation).


  • Overheat protection
  • Built-in sequence controller
  • Reverse polarity protection
  • Output for "on air" LED


    Type MKU PA 13500 CU
    Frequency range 1296 MHz (1240 ... 1300 MHz)
    Input power 10 Watts
    IN maximum 15 Watts
    Output power @ 50 Ohm 500 Watts
    Saturation output power min. 550 Watts
    Efficiency typ. 40 %
    Input S11 typ. 10 dB
    VSWR of load 1.8 : 1
    Maximum case temperature 55°C
    Monitor output Yes
    Supply voltage + 28 V
    Quiescent current typ. 6 A
    PTT switched to ground
    Current consumption max. 50 A
    Input connector SMA-female / 50 ohms
    Output connector N-female / 50 ohms
    Dimensions mm 190 x 152 x 38.5
    Case milled copper, silver-plated
    Weight typ. 4800 g