6. Noise Sidebands, HP 8590 EM-Series

Part 1: Noise Sideband Suppression at 10 kHz

1. Perform the following steps to set up the equipment: Set the signal generator controls as follows:

FREQUENCY :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: 500 MHz

OUTPUT LEVEL: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: 0 dBm

AM : :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: ::: : OFF

FM : :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: OFF

COUNTER :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: : INT

RF : :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: : ON

Connect the equipment as shown in Figure 2-6.

Press 4PRESET5 on the EMC analyzer, wait for the preset routine to ￿nish, then press 4FREQUENCY5 500 4MHz5.

2. Press the following EMC analyzer keys to measure the carrier amplitude.

4SPAN5 10 4MHz5

4MKR !5 MARKER ! HIGH

4MKR5 More 1 of 3 MK TRACK ON OFF (ON)

4SPAN5 200 4kHz5 4BW5 1 4kHz5

AVG BW AUTO MAN (MAN) 30 4Hz5

4MKR5 More 1 of 3 MK TRACK ON OFF (OFF)

4SGL SWP5

Wait for the completion of a sweep, then press 4MKR !5 MARKER ! HIGH .

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Carrier Amplitude.

3.Press the following EMC analyzer keys to measure the noise sideband level at

+10 kHz:

More 1 of 3 More 2 of 3

MARKER 1 10 4kHz5

4MKR5 MARKER NORMAL

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Noise Sideband Level at +10 kHz.

Performance Veri￿cation Tests 2-25