1. Center Frequency Readout Accuracy
A synthesized signal source that is phase-locked to a known frequency
standard is used to input a signal to the analyzer. The frequency
readout of the analyzer is compared to the actual input frequency
for several different frequency settings over the analyzer’s range.
The signal source is phase-locked to a standard known to be as
accurate as the analyzer’s internal frequency reference to minimize
the “frequency reference error X center frequency” term of the
specifications.
Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8340A
Frequency Standard . . . . . a 10 MHz standard with accuracy within
1 part in
such as HP 5061A
Adapter, Type N (m) to SMA (f) , . . . . . . . . . . . . . . . . . . . . . 1250-1250
Adapter, SMA (f) to SMA (f) . . . . . . . . . . . . . . . . . . . . . .
Cable Assembly, SMA Male Connectors . . . . . . . . . . . . . . . . .
1.
2.
3.
4.
5.
6.
7.
8.
Connect CAL OUTPUT to RF INPUT.
Press
Adjust FREQ ZERO for a maximum amplitude trace.
Press
Set the synthesized sweeper for a 2.000000
signal at a level of
approximately 0
Connect equipment as shown in Figure 2-l.
Set analyzer
FREQUENCY
)
and
(
FREQUENCY
and
synthesized sweeper frequency according to Table 2-2. At each
setting, press
SEARCH
],
to center the signal.
Adjust
LEVEL
)
as necessary to place signal peak at a
convenient level.
Record the CENTER FREQUENCY readout in the table for each
setting. The limits for this frequency are given in the table. Refer
to Figure 2-2.
Performance Tests 2-5
