HP E1340A, Service Manual

Page: 53 / 104

2. Set the AFG to output a 10 dBm, 10 MHz sinewave:
FREQ 1.0E7;
Set AFG frequency
:VOLT 10DBM Set AFG amplitude
INIT:IMM Initiate waveform
Perform steps 3 and 4 for each frequency range listed in Table 2-10:
3. Set the spectrum analyzer start frequency and stop frequency to the
values listed in Table 2-6.
4. Measure the amplitude (in dBm) of the highest peak. Subtract the
amplitude of the fundamental (10 dBm) from the reading and record
the result:
result
(
dBc
) =
reading
(
dBm
) − (
10 dBm
)
Table 2-6. Spurious/Non-Harmonic Test Points
Start
Frequency
(Hz)
Stop
Frequency
(Hz)
Spec
(dBc)
1 E6
10.5 E6
21 E6
31 E6
41 E6
51 E6
75 E6
100 E6
125 E6
9.5 E6
19 E6
29 E6
39 E6
49 E6
75 E6
100 E6
125 E6
150 E6
-43
-43
-43
-43
-43
-43
-43
-43
-43
Chapter 2 Verification Tests 55