ANALOG MODULATION MODE
3-80
RF output before attenuator
Requested
RF level
C0957
0 dBm
+6 dBm
-6 dBm
+12 dBm
-12 dBm
-6 dBm
-9 dBm
0 dBm
-12 dBm
-18 dBm
-HYST
displayed
+HYST
displayed
-24 dBm
Fig. 3-78 Extended hysteresis operation with an RF level of -9 dBm as the starting level
In the hysteresis range the RF level is set in a different way to the normal operation and this
will affect some performance aspects. AM distortion and accuracy will be affected. With no
AM selected, the effect on RF accuracy in the +HYST region will be relatively minor. But
the effect in the -HYST region on RF level accuracy will be more significant.
Burst control
Applies only if Option 002, Pulse Modulation is fitted. Pressing the
[CW Burst Control]
key
toggles between normal operation and Burst Suppression operation. For details refer to 'Pulse
modulation' above.