Technical data

Input/Output 9
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 191
The 650 MHz term in the equations above is approximately 2x IF. 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 N8201A.
Saved State Saved in Instrument State
Key Path: Input/Output, External Mixer, Ext Mix Band
Remote Command:
See“Ext Mix Band (Option AYZ only)" on page 186.
Example:
MIX:BAND USER
MIX:HARM -14
Signal ID (Option AYZ only)
Activates a signal identification algorithm when Signal ID is on, which either removes or
aids with the identification of multiple and image responses of true input signals. Multiple
and image responses may be generated when using unpreselected external mixers.
The amplitude accuracy of the N8201A is degraded when signal identification is on. Use
Signal ID to identify true signals, then turn Signal ID off to make accurate amplitude
measurements.
If the input signal is too broadband or unstable for the identification process to properly
identify it, turn off the signal identification and look for two similar responses separated by
approximately 642.8 MHz (twice the 321.4 MHz first IF). If a “–” mixer mode (for example:
8–) is active, the right member of the response pair is the correct response; if a “+” mixer
mode is active, the left member of the response pair is the correct response.
Key Path: Input/Output, External Mixer
Annunciation/Annotation: “SID” message appears on the upper right of the screen
when the signal ID is turned on.
Dependencies/Couplings:
Not available when:
• Averaging is set to on
• Manual FFT mode
• Sig Track is set to on
• Preselected external mixer selected
State Saved: Saved in Instrument State