Chapter 2 159
Instrument Functions: A - L
Input/Output
Instrument Functions: A - L
2.8.6.12 220-325 GHz (J)
Selects J band (mixing harmonic -46). Displays the start and stop frequencies for that
particular band. Other start/stop frequencies are available as long as they are within the
-46 harmonic band.
Key Path:
Input/Output, Input Mixer, Ext Mix Band
Remote Command:
Example: MIX:BAND J
2.8.6.13 User
Lets you define the frequency band for your Input Mixer. The frequencies available depend
on the currently selected harmonic mixing number. Use
Mixer Config, Harmonic to select a
particular harmonic number.
Equation 2-1 Preselected External Mixer Frequency Ranges vs. Harmonic
Number
Equation 2-2 Unpreselected External Mixer Frequency Ranges vs. Harmonic
Number
NOTE The 650 MHz term in the equations above is approximately 2XIF. This term
is for the signal identification algorithm. The 6.666 GHz term is the
maximum LO range based on the preselector tune circuitry in the analyzer.
Saved State Saved in instrument state
Key Path:
Input/Output, External Mixer, Ext Mix Band
For N positive harmonic mixing band numbers:=
Minimum frequency N 2.9GHz×()321.4MHz+=
Maximum frequency N 6.666GHz×()321.4MHz 650– MHz+=
For N negative harmonic mixing band numbers:=
Minimum frequency N 2.9GHz×()321.4MHz 650MHz+–=
Maximum frequency N 6.666GHz×()321.4MHz–=
For N positive harmonic mixing band numbers:=
Minimum frequency N 2.9GHz×()321.4MHz+=
Maximum frequency N 6.9GHz×()321.4MHz 650– MHz+=
For N negative harmonic mixing band numbers:=
Minimum frequency N 2.9GHz×()321.4MHz 650MHz+–=
Maximum frequency N 6.9GHz×()321.4MHz–=
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