E5071C
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Frequency) frequency points
Q (Q Value) Q = cent/BW
loss (Insertion Loss) The measurement value of the active marker.
1. Display a marker.
Marker > Marker 1
2. Using one of the following methods, move the marker to the center
frequency of the bandpass filter.
• On the entry bar, press 9 > 4 > 7 > . > 5 > M/m
• Turn the rotary knob on the front panel to set it to the center
frequency (947.5 MHz).
3. Specify the bandwidth definition value that defines the pass band of
the filter. In this measurement example, it is set to -3 dB.
Marker Search > Bandwidth Value > +/- > 3 > x 1
4. Set the bandwidth search function ON.
Marker Search > Bandwidth
5. The bandwidth data items (BW, cent, low, high, Q, loss) will be
displayed. (See the following figure)
Measuring the -3 dB Bandwidth
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