Tektronix 494AP service manual O a a o o a o o

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Tesl fqulprng6l

utgtrat v9tlmeter

FrequencyCounter

Time-MarkGenerator

servtce Kit Extend€r Board

CENTERFREOUENCY CONTROLSOARD Oil EXTENDER

			Maintenance_ 494A/494Ap
				Service Vot.1
EOUIPMET.IT	Tabte6-g
REOUTRED
		FORCALTBRATING
			THE
16-20]VtHzpHASELOCKCRCUT
Characteristlcs				Recommended Type
Measuresto within 0.Ol V, impedance
				TEKTRONTX
> 1 M o				TM S00-seriesDM
				501A,DM502A,or DMSO10
Frequency	g0	MHz
				TEKTRONIX TM SO0-Series DC
to
y1ll9l output,1 s to 1			ps;	503A,DC 508A,DC 509
				TEKTRONIX
			accuracy
0.001o/"				TG 501

TektronixPart No. 622-0g65-00

DIGITALTITE

VOLT OIGITAL TARX

METER COI'NTERGENERATOR

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SPECTRUil ANALYZER

Flgure 6-23.2182 MHr 2nd LO phase Lock adiu3tment setup.

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