Tektronix 494AP service manual O o a e, O a o s, 33-s0GHz

Specification - 494A,1494ApService, Vol. 1

Table 2-2

	AMPLITUDERELATEDCHARACTERISTICS
Characteristic	PerformanceRequirement	SupplementalInformation

a o o o a e

requencyResponse

Coaxial(direct)Input
		About the mid-
		point between
		two extremes
Band and Freq Range
1	(10 kHz - l . 8 GHz)	r 1 . 5 d B
2	(1 . 7 - 5 . 5GHz)	*2 . 5 dB
3	(3.0-7.1 GHz)	12 . 5dB
4	(5 . a - 18GHz)	a3 . 5dB
5	(15 - 21GHz)	f 5.0dB
With	Tektronix External	High
PerformanceWaveguideMixers
Band and Freq Range
6	(18 - 27GHz)	*2 . 0 dB
7	(26-a0 GHz)	*2.0 dB
8 (33-s0GHz)		+2 . 0dB
	(40-60 GHz)	*2 . 5 dB

9(50-90 GHz)

10(75 - 140GHz)

11 ( 1 1 0 - 2 2 0G H z )

12(170 - 325GHz)

Measuredwith 10 dB RF attenuation and peaking optimized for each centerfrequencysetting(whenappli- cable)

Responseis affectedby: o inputVSWR

rharmonicnumber(N) o gainvariation

. mixer

Display flatness is typically 1 db greaterthanfrequencyresponse.

Refer to the Options section for alternatespecifications

Refer to the Options section of this rnanual for alternate specifications.

Referenced to 100 MHz

i2.5 dB

*3 . 5 dB :t3.5dB r4.5 dB :86.5dB

f6.0 dB * 6 . 0 d B

*6 . 0 d B

*6 . 0 d B

Typically:h3 dB overany5 GHz range

Typically+3 dB overany5 GHz range

Typically13 dB overany5 GHz range

Typically*3 dB overany5 GHz

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