HP 8590 E-Series - Viewing an Unstable Signal Using Max Hold a

CENTER 104 8813 MHz
MKR 104.8813 MHz
SPAN 500.0 kHz
RES BW 10 ktiz
VEW 10 kHZ SWP 30 msec
Figure 3-10. Viewing an Unstable Signal Using Max Hold A
Annotation on the left side of the screen indicates the trace mode. For example, MA SB SC
indicates trace A is in maximum-hold mode, trace B and trace C are in store-blank mode.
See “Screen Annotation” in Chapter 2.
6. Press (j%?Fj, TRACE A B C to select trace B. (Trace B is selected when B is underlined.)
Press CLEAR WRITE B to place trace B in clear-write mode, which displays the current
measurement results as it sweeps. Trace A remains in maximum-hold mode, showing the
frequency shift of the signal.
7. Press TRACE A B C to select trace C (C should be underlined). Press MIN HOLD C . Trace C
is in the minimum-hold mode and displays the minimum amplitude of the frequency drift of
the signal.
b
MKR 104.8813 MHZ
REF -40 0 d&n XATTEN 0 dB
-47 04 dRm
PE,4II
LOG
10
dE/
i
I
CENTER 104 8813 MHz
SPAN 500.0 kHr
fiES BW 10 CHZ
VOW 10 kHr SWP 30 msec
Figure 3-11. Viewing an Unstable Signal With Max Hold, Clear
Write, and Min Hold
Making Basic Measurements 3-l 1