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Q, U, u
FAST PRESET/HP-IB
A partial instrument preset can be initiated with [,,,, T or B U. These key functions operate essentially the
same as the @ instrument preset in that a specific full span is set, functions automatically coupled, and shift
functions turned off. The difference is that the fast presets do not exercise the instrument's internal self-test routine,
which controls the two check LEDs and, as a result, can be executed much faster.
Fast preset 2 - 22 GHz:
Fast preset external mixer:
Under remote operation, an HP-IB operation mode can be set which allows the analyzer to operate faster than
normal. The Fast HP-IB mode is enabled with a [,.,rl S. A m instrument preset will disable the Fast HP-IB
mode, whereas the Fast presets will not disable the Fast HP-IB mode.
Fast HP-IB:
BAND LOCK
If desired, the analyzer can be locked on a selected frequency band (local oscillator harmonic number). In normal
operation, pressing the CENTER FREQUENCY key enables the analyzer to be tuned with one of the tuning
controls from 0 to 22 GHz ( - 1 to 24 GHz over-range). Executing a band lock limits the analyzer's tuning range to
the selected harmonic number.
To execute band lock, B R (Diagnostics On) and the tuning controls can be used to display the harmonic
numbers. [,,,, t locks the frequency range to the desired harmonic number.
Band lock: (-II t
Band unlock: [,.,,, Q or FULL SPAN key
EXTERNAL MIXER
Two shift functions are available to specific usage with an external mixer. Shift U selects an LO tuning range for
external mixer operation. Shift v enables a signal identifier routine which uses the marker to automatically identify
the signal under observation.
Fast preset external mixer:
Signal identifier external mixer:
106 Manual Operation
press @ T
press (1*(rrl U
press [,.,,, S
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