160 Chapter 2
Instrument Functions: A - L
Input/Output
Instrument Functions: A - L
Remote Command:
See “Ext Mix Band (Option AYZ only)” on page 155
Example: MIX:BAND USER
MIX:HARM -14
2.8.7 Signal ID (Option AYZ only)
Activates a signal identification algorithm when Signal ID is pressed to select On, that
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 analyzer is degraded when signal identification is on. Use
Signal ID to identify true signals, then turn Signal ID off to make accurate amplitude
measurements.
NOTE 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
Factory Preset: Off
History:
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