Tektronix 494A Characteristic Performance Uirement, Normal Accuracyand Ldentical Resolution

Specilication - 494A/494Ap Service, Vot. 1
	Table 2-l	(Continued)
	FREQUENCY
	RELATEDCHARACTERTSTICS
Characteristic	Performance	uirement	SupplementalInformation
Line-relatedSidebands			cally (-55 dBc (47 Hz - 44A Hz)
EffectiveVideo Bandwidth

kHz

Pulse StretcherFall Time

Marker(s)

3 kHz

300 Hz

30 Hz

3 H z

0.3Hz

Typically 30 psldivision of pulse tude

When activated, the marker is a bright dot positioned by the

CENTER/MARKER FREQUENCY control or the DATA ENTRY pushbut- tons.

Normal
Accuracyand	ldentical
Resolution		For the active trace
	to centerfrequency
Delta Marker
Accuracy	t1o/o of the tolal span	For the active trace.

Resolution

FrequencySpan/Div OverallRange

MinimumSpan/Div

5/" at the measurernent on multi- band and stored displays

Displays delta time in Zero Span mooe

AMKR activates a second marker at the position of the single marker on the trace. Parenthesisappear on the marker displayline indicatingthat the delta mode is active. The display shows the difference in frequency and amplitude. 1-MKR-2 selects which marker is tuned.

At least10/ ot Span/Div

10Hzldivto 10 GHz/div(in a 1-2-5 sequencewith SPAN/DIVcontrol)or

10Hzldiv to 15 GHz/div(from the DATA ENTRY pushbuttons)to two significantdigits.

10 Hz in all bands

2-4