Chapter 4: Specifications & Performance Verification
92 2500A Series Operation Manual, 34172 Revision C, March 2008
4.2.3 Spectral Purity
Table 4-6: Harmonics
1
1. At maximum leveled output or +10 dBm, which-
ever is lower. Harmonics above instrument range
are typical.
Frequency Harmonics
0.1 to <10 MHz -30 dBc
10 - 100 MHz -40 dBc
0.1 - <2 GHz -55 dBc
2.0 - <20.0 GHz -55 dBc
20.0 - 40 GHz -30 dBc
Table 4-7: Sub-Harmonics
1
1. At maximum leveled output or +10 dBm,
whichever is lower
Frequency dBc, +6 dBm Setting
0.01 to 2 GHz - 80
>2 to 20 GHz - 60
>20 to 40 GHz - 50
Table 4-8: Spurious (Non-Harmonic related Spurs)
1
1. Offsets < 300 Hz, -45 dBc typical
Frequency Offsets (> 300 Hz)
100 kHz to 10.1 GHz - 65 dBc
>10.1 to 20.20 GHz - 58 dBc
>20.2 to 40 GHz -50 dBc
Table 4-9: Residual FM (typical)
Frequency Bandwidth - 50 Hz to 150 kHz
100 kHz to 20.2 GHz < 6 Hz
>20.2 to 40 GHz < 12 Hz
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