Agilent Technologies E1441A Amplitude Flatness Verification, Appendix D, Service Procedures

Amplitude Flatness Verification

This test verifies the output amplitude flatness specification at selected frequencies. If you use a Temperature Voltage Converter (TVC) (the recommended method)

or a wide band ACrms voltmeter (with a 50 Ω feed through load), perform this procedure as described. If you are using a measurement device that requires a transfer measurement (for example, a power meter), make the transfer in the reference measurement at 100 kHz.

Set the function generator to the first output indicated in the table below and make a reference measurement. Set each function generator output shown in the table below. Measure the output of the function generator. Compare the amplitude level measured to the reference measurement +/- the error shown in the table. This test is a 50 Ω output termination test.

Table D-7. Amplitude Flatness Verification

		Agilent E1441A			Measurement
	Function	Out	Ampl	Freq	Nominal	Error
		Terma
Q	Sine wave	50 Ω	3.0 Vrms	1.00 kHz	<reference>
	Sine wave	50 Ω	3.0 Vrms	100.00 kHz	<reference>	± 0.03 Vrms
	Sine wave	50 Ω	3.0 Vrms	500.00 kHz	<reference>	± 0.045 Vrms
Q	Sine wave	50 Ω	3.0 Vrms	1.00 MHz	<reference>	± 0.045 Vrms
	Sine wave	50 Ω	3.0 Vrms	3.00 MHz	<reference>	± 0.06 Vrms
	Sine wave	50 Ω	3.0 Vrms	5.00 MHz	<reference>	± 0.06 Vrms
	Sine wave	50 Ω	3.0 Vrms	7.00 MHz	<reference>	± 0.06 Vrms
	Sine wave	50 Ω	3.0 Vrms	9.00 MHz	<reference>	± 0.06 Vrms
	Sine wave	50 Ω	3.0 Vrms	11.00 MHz	<reference>	± 0.06 Vrms
	Sine wave	50 Ω	3.0 Vrms	13.00 MHz	<reference>	± 0.06 Vrms
Q	Sine wave	50 Ω	3.0 Vrms	15.00 MHz	<reference>	± 0.06 Vrms

a.The E1441A has a fixed output impedance of 50 Ω on the "Output" terminal. Use the OUTPut:LOAD 50 INFinity MIN MAX command to set the output termination. HIGH Z assumes no load on output. 50 Ω assumes a 50 Ω ± 0.1 Ω load on output.

Appendix D Service Procedures 171