Anritsu 683XXB, 682XXB manual Performance Single Sideband Verification, Phase Noise Test

PERFORMANCE	SINGLE SIDEBAND
VERIFICATION	PHASE NOISE TEST

Test	The following procedure lets you measure the RF
Procedure	output single sideband phase noise levels to verify
	that they meet specifications.
						NOTE
	The following technique is a measurement
	of phase noise and AM noise. To avoid erro-
	neous results, on the 682XXB/683XXB
	DUT set L1 for maximum leveled output
	power and select External Detector level-
	ing. This will prevent any AM noise from
	degrading the phase noise measurements.
	1. Set up the 682XXB/683XXB DUT as follows:
	a. Reset the instrument by pressing							,
							SYSTEM
	then	Reset		. Upon reset the CW Menu is dis-
	played.
	b. Press					to open the current frequency
			Edit F1
	parameter for editing.
	c. Set F1 to the frequency indicated on the Test
	Record.
	d. Press				to open the current power level
			Edit L1
	parameter for editing.
	e. Set L1 to the maximum leveled power level for
	the instrument being tested (refer to Table 3-2,
	page 3-6).
	2. Set up the 682XXB/683XXB LO as follows:
	a. Reset the instrument by pressing							,
							SYSTEM
	then	Reset		. Upon reset the CW Menu is dis-
	played.
	b. Press					to open the current frequency
			Edit F1
	parameter for editing.
	c. Set F1 to a frequency that is 1 MHz lower than
	the 682XXB/683XXB DUT frequency set in
	step 1.c.
	d. Press				to open the current power level
			Edit L1
	parameter for editing.
	e. Set L1 to the maximum leveled power level for
	the instrument model (refer to Table 3-2).

682XXB/683XXB MM 3-23