Tektronix 494A O a o o a o o o o o o o a o o o o o o o, O a o O o o o o o o o o o o o, Freouency

Models: 494AP 494A

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Optione - 494A/494ApService,Vot. 1

Option 39 (Sitver Battery)

. Option 39 provides a silver battery for the instru_m€nt'sbattery-poweredmemory. The battery life at +55"C is 1-2 years and 2-5 years at +2SoC.W€ recommendremovingthe silver batteriesduringlong- term storage.

Option 41 (Digitat Radio)

Option41 inctudesthe followingteaturesto provide extra measurem€ntcapabilitiesfor Digital Microwave Radio. Table 8-4 tists the changes troh tne standard instrument.

oA wider bandwidthpresel€ctorprovidesbettersig- nal symmetryin the digitalradiobands.

oA narrowvideofitter(approximately1/3000thof the resolutionbandwidth)improvesamplitudevariation analysisat specificfrequencyspansthat are unique to the digitalradiomeasurements.

ollprovcd frequency span/div accuracy at s MHz/div span providesaccuratesignal bindwidth measurements.

Option 42 (110 MHz lF Outpur)

Option42 providestor a rear-panel110 MHz tF sig- nal with a bandwidthgreEterthan 5 MHz,which makes the spectrum analyzer suitable for broadband swept- rEceiver applications. Table 8-5 lists the electrical characteristicsof the 110MHz output.

Oplion 45 (MATECO)

This option providesthe spectrumanalyzerwith the software/firmware nec€ssary to meet Modular Automated Test Equipment Compatibitity Options (MATECO). A MATECO Programmers Manual is includedas an accessorywith this option.

Option 52 (North American 220V,

Option 52 provides a North American 22O V configurationwith the standard pow€r cord. The fuses are replacedwith 2A slow blow.

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Table 8-4

OPTION41 ALTERNATE SPECIFICATIONS

Gharacteristic

 

SupplementalInlormation

 

 

FREOUENCY

 

 

FrequencySpan/Div

 

 

Accuracy

5 MHz/div,within *1%

At center frequency of 6 GHz and 11

 

 

 

GHz

 

 

Measuredoverth€ center6 divisions

Video Filter

 

of

 

 

Narrow

 

3O Hz (1i3000th)with 100 kHz reso-

PreselectorFilterBandwidth

 

 

1 . 7 GHz to 5 GHz

 

3OMHz minimum

5 GHz to 16 GHz

 

35 MHzminimum

Hz to 2'l

 

 

8-4

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