VSWR Meter measurement

Discussion in 'General Electronics Chat' started by vinodquilon, Jun 2, 2011.

  1. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    I am using the following steps to measure Low VSWR,

    1. Move the probe along the slotted line to get maximum deflection in

    VSWR meter.
    2. Adjust the VSWR meter gain control knob or variable attenuator

    until the meter indicates 1.0
    on normal VSWR scale.
    3. Keep all the control knob as it is move the probe to next minimum

    4. Read the VSWR on scale.

    Can anybody explain, why we are using first three steps instead
    of measuring direct VSWR reading from VSWR meter ?