HP 3048A Operating Manual page 100

Beginning the Measurement
1. Press the New Msrmnt key.
2. Press Yes, Proceed|. The HP 3048A now addresses each
of the instruments listed in its System Configuration
table. If it does not receive a response at the address
listed for an instrument, it will inform you with a
displayed warning. (Refer to Appendix A if you need
information about adding or changing an instrument in
the HP 3048A's System Configuration table.)
3. When the Connect Diagram appears on the
HP 3048A's display, connect the signal paths as shown
on the display. (Figure 3-15 shows the rear-panel
External Timebase Input for connecting a 10 MHz
source.) Table 3-11 provides setup considerations that
will help you ensure that your measurement results will
be valid.
Note Although not shown in the connect diagram, the rear-panel
cable connection described in Appendix A (SOURCE OUT
to NOISE INPUT) is required. Also, the 50fi load must be
connected to the SPECTRUM ANALYZER OUTPUT when
an RF spectrum analyzer is not being used.
3-50 Signal Source Applications