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The EXTMXR command presets the external mixing mode, setting the frequency range from 18.0 GHz to 26.5
The preset conditions are as follows:
Specifies the fifth LO harmonic as the start harmonic for the signal identification routine. (See NSTART)
Specifies forty-second harmonic as the stop harmonic for the signal identification routine. (See NSTOI?)
Specifies 10 dB as the maximum amplitude difference between a signal and its image. (See SIGDEL.)
On execution of EXTMXR, the active function readout displays the following:
The 6 represents the current LO harmonic. The K represents the frequency band to which the analyzer is tuned.
If a harmonic lock is in effect (KSt or HNLOCK), an 7." is displayed above the graticule next to the harmonic
number. The conversion loss offset value is annotated to the left of the graticule.
Changing the frequency range with the start and stop frequencies automatically changes the harmonic used for
tuning.
The functions of the EXTMXR and KSU commands, and m $ keys are identical. See NSTART NSTOR
SIGDEL, HNLOCK, and CNVLOSS.
ASSIGN @Sa TO 718
10
20
OUTPUT @Sa; "Ip, "
30
OUTPUT @Sa;"FA&P)GZ;"
40
OUTPUT @Sa;"S2;TS;"
50
OUTPUT Q Sa; "HNLOCK; "
60
OUTPUT @Sa;"Sl;"
OUTPUT @Sa;"FA8.0GZ;FB12.5GZ;"
70
80
E N D
External Mixing Mode
Programming 101
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