Chapter 2 73
Performance Verification Tests
8. Noise Sidebands - Wide Offsets: Agilent E4402B, E4404B, E4405B and E4407B
Part 3: Noise Sideband Suppression at 5 MHz
1. Press the following analyzer keys to measure the noise sideband
level at 5 MHz:
FREQUENCY, CF Step, 5 MHz
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 5 MHz.
3. Press the following analyzer keys to measure the noise sideband
level at −5 MHz:
FREQUENCY, ↓, ↓
Single
Wait for the analyzer to average ten sweeps.
4. Press Peak Search (or Search) and record the marker amplitude noise
reading in Table 2-11 as the Lower Sideband Noise Level at −5 MHz.
5. Press ↑.
Part 4: Noise Sideband Suppression at 10 MHz
1. Press the following analyzer keys to measure the noise sideband
level at 10 MHz:
FREQUENCY, CF Step, 9.99 MHz
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 10 MHz.
NOTE A spur may exist at 10 MHz offset from the carrier. Measuring at ±9.99
MHz offset from the carrier will yield a noise sideband level worse than
the reading at ±10 MHz offset.
Press the following analyzer keys to measure the noise sideband
level at −10 MHz:
FREQUENCY, ↓, ↓
Single
Wait for the analyzer to average ten sweeps.
3. Press Peak Search (or Search) and record the marker amplitude noise