Looking for an RF Power Meter 80m to 10 m

Nashua Area Radio Society Topics In All Forums Mentoring Forum Looking for an RF Power Meter 80m to 10 m

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  • #115631
    Peter Wolczko
    Participant

      I am looking at buying an RF Power Meter that would measure power from 80 Meters to 10 Meters.  I have no idea which model will work, as I was not able to find much on line.

      Many thanks,

      73

      Peter KC1FNF

      #115632
      Hamilton
      Participant

        Hello Peter,

        If accuracy isn’t critical a meter like a Diamond SX-200, Bird, or similar with a dummy load on the output will work.

        Another approach is to use a oscilloscope with a suitable probe to measure the peak to peak voltage across a dummy load and then calculate the power. This works best with a CW signal.

        When high accuracy is required a precision power meter by Keysight, Agilent, or HP can be used. These use a bolometer (heat sensing) sensor and will provide accurate power measurements even with complex waveforms. These meters require calibrated attenuators or couplers to reduce the signal to a safe level.

        The thing to note is the transmitter must drive into a load with a good SWR such as a dummy load, attenuator, or a well matched antenna.

        73,

        Hamilton K1HMS

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