Manual Sweep
resolution defined by the
a
and
@
keys. Frequencies in the
manual sweep mode are synthesized, just as they are in CW mode.
There are two major differences between manual sweep and a sweep
generated by activating the CW function and rotating the rotary
knob or pressing the ARROW keys.
1. The sweep output voltage ramp is 0 to
+lO
V in both modes,
but in CW mode, 0 V corresponds to lowest frequency of the
swept CW generator frequency range and
+lO
V corresponds
to the highest frequency of the range. In manual sweep mode,
0 V corresponds to the start frequency specified and
+lO
V
corresponds to the stop frequency specified. In both cases, the
sweep voltage at intermediate frequencies is a linear interpolation
of the frequency span. For example, a frequency half-way between
the start/stop limits has a sweep voltage of 5 V.
2. The bandcross points in CW mode occur at 2.0, 7, 13.5, 20, 25.5,
and 32 GHz.
In manual sweep mode the bandcrossing points have 200 MHz of
flexibility, that is automatically used by the swept CW generator
for optimum performance. For example, a 2.0 to 7.1 GHz sweep
could be accomplished without any band changes in manual sweep
mode.
Programming Codes
SCPI: SWEep:MODE
MANuallAUTO
This is the command for frequency manual sweep.
POWer:MODE
SWEep
POWer:SPAN
<num>[lvl
suffix]~MAXimum~MINimum
This is the command for power manual sweep.
LIST:MODE
MANual
This is the command for manual list sweep.
Analyzer: S3
See Also
Power Sweep,
Sweep
Mode List
“Continuous, Single, and Manual Sweep Operation”
in Chapter
1
M-2 Operating and Programming Reference
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