Chapter 2 117
Front-Panel Key Reference
Input/Output
Signal Ident
On Off
Activates a signal identification algorithm when
Signal Ident (On) is selected, that either removes or aids
with the identification of multiple and image responses
of true input signals. Multiple and image responses
maybe generated when using unpreselected external
mixers.
Key Access:
Input/Output, Input Mixer
NOTE Segmented sweep is not available when Signal Ident (On) is selected.
NOTE If the input signal is too broad band 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.
The amplitude accuracy of the analyzer is degraded
when signal identification is active, and the message
Signal Ident On, Amptd Uncal will appear on the
display.
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