Agilent Technologies E4406A manual Making Measurements, Maximum, Chapter

Making Measurements

Making the Adjacent Channel Power (ACP) Measurement

Table 4-4	Adjacent Channel Power Measurement Defaults
	Measurement Parameter	Factory Default Condition
	Limit Setup:
	Abs Limit	0.00 dBm
	Fail	Relative
	Rel Lim (Car)	−45.00 dBc (offset A)
	Rel Lim (PSD)	−28.87 dB (offset A)
	Meas Type	Total Pwr Ref
	Trig Source	Free Run (Immediate)
	Fast ACP	Off
	Limit Test	On
	Ref Chan Adv:
	Sweep Time	546.1 ∝s; Auto
	Data Points	2048; Auto
	Res BW	1.620 kHz (grayed out)
	Num FFT Seg	1; Auto
	Offset Adv:
	Sweep Time	11.20 ms; Auto
	Data Points	1024; Auto
	Res BW	79.0 Hz (grayed out)
	Num FFT Seg	1; Auto
	Relative Atten	0.00 dB

Make sure the ACP measurement is selected under the MEASURE menu. The Meas Setup key accesses the menu which allows you to modify the average number and average mode for this measurement. In addition, the following parameters for adjacent channel power measurements can be modified:

•Ref Channel - Allows you to access the following parameters for the reference channel settings:

Chan Integ BW - Allows you to specify the channel integration bandwidth in which the carrier power is measured. The range is 1.000 kHz to 20.0000 MHz with the best resolution of 1 Hz.

Avg Type - Choose the averaging type between Pwr Avg (RMS) and

Maximum.

Ref Chan Adv - Allows you to access the menu to change the following advanced parameters for the reference channel:

Sweep Time - Allows you to select Man or Auto (default) mode.

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