15. To select the converter type and a high-sideLo measurement configuration, press:

&&f&g : ..,. .,.v. .;. :. ~6~,~~.~~~~.

/....~~/...~ . . . . T.,, ..: ;L?.::<: ........,,,,......

&&Jal~.i

Notice in this high-side LO, down conversion configuration, the analyzer’s source is actuahy sweeping backwards, as shown in Figure 3-7. The measurement setup diagram is shown in Figure 3-8.

100 MHz

350 550

650

900

1 GHz

Figure 3-7. Diagram of Measurement Frequencies

NETWORK ANALYZER

FREO

OFFS

 

ON

off

LO

MENU

DOWN

CONVERTER

UP

CONVERTER

RF > LO

RF < LO

VIEW

MEASURE

RETURN

FIXED LO: 1 GHz

LO POWER. 13 dBm

Figure 3-8. Measurement Setup from Display

16. To view the measurement trace, press:

pg6155d

pg627e

17. To perform a one-sweep power meter calibration over the RF frequency range, press:

Note

Do not reduce the number of points to perform this power meter calibration.

 

Reducing the number of points will turn off the receiver calibration.

The analyzer is now displaying the conversion loss of the mixer calibrated with power meter accuracy.

3-10 Making Mixer Measurements

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Image 152
HP 8753E manual ~~/...~ . . . . T.,, .. L? Jal~.i, To view the measurement trace, press