HP 8559A SignalGenerator, 10-dBAttenuztor, 4-22.INPUT ATTENUATOR ACCURACY

PERFORMANCE TESTS MODEL 8559A

PERFORMANCE TESTS

4-22. INPUT ATTENUATOR ACCURACY

SPECIFICATION:

Step Accuracy (0 dB to 60 dB): < k1.0 dB per 10-dB step, 0.01 to 18.0 GHz

Maximum Cumulative Step Error (0 dB to 60 dB): < 2.4 dB, 0.01 to 18.0 GHz

DESCRIPTION:

The input attenuator accuracy is tested over the range of 0 to 60 dB using an RF substitution method. A step attenuator that has been calibrated at 30 MHz by a Standards Laboratory is used for substitution. The known error of the calibrated attenuator is taken into account when computing the input attenuator accuracy.

SPECTRUM

ANALYZER

SIQNAL QENERATOR

R F OUTPUT (		(j 10 dB
ADAPTER	Q
		ATTENUATOR
	STEP
	ATTENUATOR
FIGURE4-17.INPUT ATTENUATOR ACCURACY TESTSETUP
EQUIPMENT:
SignalGenerator .........................................................		HP8640B
Step Attenuator (10 dB/step)	......................................	HP 355D, Opt. H82
10-dB Attenuztor ................................................		HP 8491B,Opt. 010
Adapter, Type N (m) to BNC (f) (2 required) ...............................		HP 1250-0780