Agilent Technologies E1441A user service kHz to 100 kHz

1.Use a broadband ACrms voltmeter to measure the ACrms output voltage of the function generator for SETUP 64 in table D-19 then go to step 3 to enter that value. Go to step 2 if using a power meter.

Table D-19. AC Flatness Adjustment Setup (broadband AC Voltmeter)

	Nominal	+
	Output
SETUP	FREQUENCY	AMPLITUDE	Reference for:
64	1 kHz	3.0 V rms	1 kHz flatness DAC gain

2.A. If you are using a broadband ACrms voltmeter, proceed to step 3.

B. If you are using a power meter capable of measurements at 1 kHz, use the power meter to measure the function generator output for SETUP 83 in table D-20 then go to step 3 to enter that value. (If your power meter does not measure to 1 kHz, see the transfer measurement procedure below).

Table D-20. AC Flatness Adjustment Setup (power meter)

	Nominal Out-	+
	put
SETUP	FREQUENCY	AMPLITUDE	Reference for:
83	1 kHz	3.0 V rms	V rms, dBm

Power Meter Transfer Measurement Procedure (> 1 kHz)

If you are using a power meter not capable of measurement to 1 kHz, you can perform the transfer measurement at a different frequency. For example, the Agilent 437A Power Meter with the Agilent 8482A probe and 20 dB attenuator are specified to a low frequency of 100 kHz. To use this measurement device, perform step 1, then use SETUP 65 (instead of SETUP 64) to obtain a 100 kHz output. Measure the output with the power meter, record the measured value, perform SETUP 83 and enter the recorded value from SETUP 64 (not a new measurement). Then, perform step 3 (you will use SETUP 65 twice). This procedure assumes the function generator output is flat from

1 kHz to 100 kHz.

C. If you are using a Thermal Voltage Converter (TVC), use the TVC to measure the function generator output and enter the measure- ment for SETUP 84 in table D-21. (TVC values entered are in mVDC).

Table D-21. AC Flatness Adjustment Setup (thermal converter)

SETUP	FREQUENCY	AMPLITUDE	Reference for:
84	1 kHz	3.0 V rms	Thermal Voltage Converter

186 Service Procedures Appendix D