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44 Chapter 2
Basic Operation
Configuring the RF Output
Figure 2-2 Equipment Setup
2. Turn on both the 8757D and the PSG.
3. On the 8757D, press
System > More > Sweep Mode and verify that the SYSINTF softkey is set to ON.
This ensures that the system interface mode is activated on the 8757D. The system interface
mode enables the instruments to work as a system.
4. Press
Utility > GPIB/RS-232 LAN to view the PSG’s GPIB address under the GPIB Address softkey. If you
want to change it, press
GPIB Address and change the value.
5. On the 8757D, press
LOCAL > SWEEPER and check the GPIB address. If it does not match that of the
PSG, change the value.
6. Preset either instrument.
Presetting one of the instruments should automatically preset the other as well. If both
instruments do not preset, check the GPIB connection, GPIB addresses, and ensure the 8757D is
set to system interface mode (
SYSINTF set to ON).
The PSG automatically activates a 2 GHz to maximum frequency ramp sweep with a constant
amplitude of 0 dBm. Notice that the RF ON, SWEEP, and PULSE annunciators appear on the PSG
display. The PULSE annunciator appears because the 8757D is operating in AC mode.
The PSG also switches its remote language setting to 8757D System, allowing the PSG to talk to
the 8757D during ramp sweep operations. You can confirm this by pressing
Utility > GPIB/RS-232 LAN
and observing the selection under the
Remote Language softkey.