3152B User Manual
Publication No. 980935 Rev. A
Figure 4-16, Sweep Modulation Panel
Step
Use these keys to select sweep step from two increment options:
linear, or logarithmic.
Direction
Use these keys to program the sweep direction. Up selects a sweep
from the Start to Stop sample clock setting and Down selects
sweep from the Stop to Start sample clock setting. Refer to Chapter
3 of this manual to learn more about sweep operation.
Parameters
These allow the adjustment of the Sweep Start (CW), Stop and
Sweep Time. You can also place a marker at a position
programmed by the Marker parameter. To access the required
parameter, click on the parameter’s name and observe that the LED
next to the required parameter turns on. The value that is
associated with the lit LED is displayed on the digital display. You
can use the dial, keyboard, or the [
↑
] [
↓
] keys to adjust the readout
to the required setting. After you modify the reading, click on the
Modify/Execute knob to update the 3152B with the new setting.
FSK/PSK/ASK
The FSK/PSK/ASK panel (Figure 4-17) contains parameters for
controlling the shift keying modulation functions. To turn one of the
functions on and off, click on the appropriate button in the State
group. The various groups in this panel are described below.
State
The State buttons enable or disable the shift keying functions.
General
The General group contains parameters that are common to all of
the shift keying functions. These are CW frequency and baseline.
CW Frequency –
The CW Frequency is the frequency of the pre-
modulation carrier waveform.
4-24 ArbConnection
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