19. Frequency Response, HP 8591EM

Figure 2-23. Frequency Response Test Setup, ￿50 MHz, HP 8591EM

Frequency Response, ￿50 MHz

1.Zero and calibrate the measuring receiver and 100 kHz to 1800 MHz power sensor in log mode as described in the measuring receiver operation manual.

2.Connect the equipment as shown in Figure 2-23.

3.Press INSTRUMENT PRESET on the synthesized sweeper. Set the synthesized sweeper controls as follows:

CW ::: :: :: :: : : : : : :: : : : :: : : :: : : : : : :: :: : : : : :: : : : : : : : :: : : : : : : : : 300 MHz

FREQ STEP : : : : :: : : : : : : : : : : : : :: : : : : : : : : : : : : : :: :: :: : : : : : : : :: : 50 MHz

POWER LEVEL :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: 08 dBm

4.On the EMC analyzer, press 4PRESET5 and wait for the preset routine to ￿nish. Set the EMC analyzer by pressing the following keys:

4FREQUENCY5 300 4MHz5

CF STEP AUTO MAN (MAN) 50 4MHz5

4SPAN5 5 4MHz5

4AMPLITUDE5 97 4+dB￿V5

SCALE LOG LIN (LOG) 1 4dB5

4BW5 1 4MHz5

AVG BW AUTO MAN (MAN) 3 4kHz5

4MKR !5 MARKER ! HIGH

Performance Veri￿cation Tests 2-99