Agilent Technologies HP 70910A Uživatelská příručka stáhnout pdf (Strana 51)

Chapter 3 51

Operation

11974Q Rear-Panel Features

Operation

11974Q Rear-Panel Features

Figure 3-2. 11974Q Rear Panel

POWER SUPPLY

receives power from the 11974-60028 Preselector Power Supply.

a. Refer to Table 1-2 on page -19 for the ratings of these input and output connec-

tors.

INSTRUMENT

SELECT

switches allow the 11974 to properly scale the tune ramp of the specified

spectrum analyzer.

IF OUT requires an SMA type cable and supplies the IF INPUT for the spectrum

analyzer.

TUNE IN requires a BNC type cable and receives the TUNE + SPAN sweep output

from the spectrum analyzer.

LO IN requires an SMA type cable and receives the first LO output from the

spectrum analyzer.

33 GHz SET is the low-end of the band adjustment for mating the 11974 to the

spectrum analyzer. This adjustment frequency directly corresponds to the

low-end frequency of each band.

50 GHz SET is the high-end of the band adjustment for mating the 11974 to the

spectrum analyzer. This adjustment frequency directly corresponds to the

high-end frequency of each band.

LED SET

are the LEDs used to adjust the low-end and high-end of each band so that

the 11974 is mated properly to the spectrum analyzer.

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Agilent Technologies HP 70910A Uživatelská příručka Strana 51