Specifications

Noise Sidebands < 50 kHz Offsets Performance Test
Agilent Technologies
PSA Series Spectrum Analyzers
Test and Adjustment Software
Noise Sidebands < 50 kHz Offsets Performance Test
This test verifies that the PSA meets it's noise sidebands specifications for offsets less than
50 kHz from the center frequency.
In this test, the source is connected to the RF Input and the noise level is measured at
offsets of 100 Hz, 1 kHz, 10 kHz, and 30 kHz from the carrier. The sideband power is
then subtracted from the carrier power to convert the measurement to dBc.
The resulting dBc measurement is normalized to 1 Hz RBW, and 2.25 dB of corrections
are added. The 2.25 dB corrections account for:
1. The Rayleigh Distribution of noise (1.05 dB).
2. The Log Response of the PSA (1.45 dB).
3. Equivalent Noise Bandwidth of the RBW filters (-.25 dB).
This test is performed in conjunction with the Noise Sidebands > 50 kHz Offsets test.
Required Test Equipment
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