Agilent Technologies HP 70910A Betriebsanweisung PDF herunterladen (Seite 62)

62 Chapter 3

Operation

Using an 8566B Spectrum Analyzer

Operation

General Descriptions of 8566B External-Mixing Functions

NOTE SHIFT 3, 4, 6, 7, and 8 MHz keys are NOT used with the 11974 Series.

SHIFT, ⇑ selects the first millimeter frequency “lettered” band, K-band

(18 – 26.5 GHz). (Note: K-band is not available in the 11974 Series.)

Each succeeding press of the

⇑ key advances to the next lettered

band. For example, A band can be displayed by pressing

SHIFT ⇑ ⇑.

The lettered bands are paired with harmonic numbers. Due to some

overlap between bands, always enter the millimeter band by using

the

SHIFT ⇑ keys to select the lettered band. Do not enter in the

center frequency of the band directly.

SHIFT, GHz calls the preselector-peak DAC number to the active function. The

DAC provides a vernier offset to the TUNE + SPAN to account for

slight preselector mistracking with time, temperature, and so on. For

the 0 to 63 DAC number range, the frequency range is approximately

n times 46 MHz, where n is the harmonic number. The DAC number

is saved with instrument preset (IP), but it is not saved using the

SAVE/RECALL function or with a learn string.

SHIFT, 5, MHz calls CONVERSION LOSS to the active function. This is a

single-point amplitude correction for each millimeter band, and each

band's conversion loss is saved with IP, when the band is exited, and

with the SAVE/RECALL functions.

SHIFT, 2, MHz calls the FULBAND number to the active function. This is an

alternative function to

SHIFT, ⇑, ⇑ in which each millimeter lettered

band can be entered by a FULBAND number. For example, A band is

equivalent to FULBAND 7, Q band is equivalent to FULBAND 8,

and so on.

SHIFT, 1, MHz displays the MHz key menu on the display screen for reference

purposes.

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 153 154

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Agilent Technologies HP 70910A Betriebsanweisung Seite 62