72 Chapter 2
Performance Verification Tests
8. Noise Sidebands - Wide Offsets: Agilent E4402B, E4404B, E4405B and E4407B
NOTE A spur may exist at 100 kHz offset from the carrier. Measuring at ±98
kHz offset from the carrier will yield a noise sideband level worse than
the reading at ±100 kHz offset.
Press the following analyzer keys to measure the noise sideband
level at −100 kHz:
FREQUENCY, ↓, ↓
Single
Wait for the analyzer to average ten sweeps.
10.Press Peak Search (or Search) and record the marker amplitude noise
reading in Table 2-11 as the Lower Sideband Noise Level at
−100 kHz.
11.Press ↑.
Part 2: Noise Sideband Suppression at 1 MHz
1. Press the following analyzer keys to measure the noise sideband
level at 1 MHz:
FREQUENCY, CF Step, 980 kHz
Center Freq, ↑
Single
Wait for the analyzer to average ten sweeps.
2. Press Peak Search (or Search) and record the marker amplitude noise
reading in Table 2-11 as the Upper Sideband Noise Level at 1 MHz.
NOTE A spur may exist at 1 MHz offset from the carrier. Measuring at ±980
kHz offset from the carrier will yield a noise sideband level worse than
the reading at ±1 MHz offset.
Press the following analyzer keys to measure the noise sideband
level at −1 MHz:
FREQUENCY, ↓, ↓
Single
Wait for the analyzer to average ten sweeps.
3. Press Peak Search (or Search) and record the marker amplitude noise
reading in Table 2-11 as the Lower Sideband Noise Level at −1 MHz.
4. Press ↑.