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9640A
Instruction Manual
5. Set the frequency counter as follows:
6. Set the output frequency of the UUT to each of the frequencies listed in Table 5-2. At
7. Set the UUT output to STBY. Remove all connections to the Leveling Head.
Harmonics and Spurious Signal Content
Equipment required for this test:
•
•
Use the following test to verify the harmonic and spurious signal content of the UUT
output.
1. Connect the output of the 50 Ω Leveling Head to the RF INPUT of the spectrum
2. Connect the REF FREQUENCY OUTPUT (rear panel) from the UUT to the
3. On the UUT enable the REF FREQUENCY OUTPUT at 10 MHz.
4. Set the spectrum analyzer as follows:
5-8
Frequency
Slope
Coupling
Input Impedance
Attenuation
Trigger Mode
each frequency allow the frequency counter to take several readings and settle; the
settled reading must be within the tolerance shown.
Table 5-2. Frequency Accuracy Test
UUT Frequency
10 kHz
10 MHz
30 MHz
50 MHz
100 MHz
500 MHz
1 GHz
2 GHz
2.7 GHz
4 GHz
Spectrum Analyzer
50 Ω Leveling Head (supplied with UUT)
analyzer.
spectrum analyzer Ext Ref In (on rear). See Figure 5-6 for equipment connections.
PRESET
EXT REF
COUPLING
REF LVL
FREQ
SPAN
Positive
AC
50 Ω
1x
Auto
Tolerance
9.999 999 44 – 10.000 000 56 kHz
9.999 999 60 – 10.000 000 40 MHz
29.999 998 80 – 30.000 001 20 MHz
49.999 998 0 – 50.000 002 0 MHz
99.999 996 0 – 100.000 004 0 MHz
499.999 980 – 500 000 020 MHz
0.999 999 960 – 1.000 000 040 GHz
1.999 999 920 – 2.000 0000 80 GHz
2.699 999 892 0 - 2.700 000 108 0 GHz
3.999 999 840 – 4.000 000 160 GHz
On
DC
+30 dBm
20 kHz
100 Hz
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