Giga-tronics 8003 - Figure 2-43: MAX Search Finds Minimum Return Loss of a Filter (Passband)

8003 Precision Scalar Analyzer
2-88 Manual 20791, Rev. C, June 2001
Alternately, you can press the
[CURSOR]
key again to reactivate the power/frequency readout in the
active entry area. Pressing the [MIN] softkey finds the minimum point on a trace. MAX and MIN
searches are often used as checks of a device against specification limits.
Figure 2-43: MAX Search Finds Minimum Return Loss of a Filter (Passband)
Figure 2-44: MIN Search Finds Max. Insertion Loss Point (20 dB Fixed Attenuator)
CURSOR
ON/OFF
∆
SEARCH
CURSOR
ON/OFF
CURSOR
FREQ
CRSR -14.61 dBm
-4.768 GHz
CH2: SW B -PC CRSR -14.61 dBm
10 dB/ REF 0.00 dBm
2
CURSOR ->
MRKR N
DEFINE
MRKR N
REF ->
CURSOR
CURSOR
STRT 2.000 GHz DCSR 4.768 GHz
STOP 8.400 GHz
+
CURSOR
ON/OFF
∆
SEARCH
CURSOR
ON/OFF
CURSOR
FREQ
CURSOR
RETURN
STRT 2.000 GHz
STOP
CH1: SW A -PC CRSR -20.02 dB
0.2 dB/ REF -20.00 dB
18.000 GHz
CURSOR ->
MRKR N
DEFINE
MRKR N
REF ->
CURSOR
CRSR 7.730 GHz
CRSR -20.02 dB
7.730 GHz
1