D-1
APPENDIX D – SOFT FUNCTION KEYS
ALPHABETICAL LISTING OF COM-120C SOFT FUNCTION KEYS
FUNCTION DESCRIPTION
% Toggles between dB and % settings. Inactive units displayed on softkey.
∆ ON/OFF Toggles ∆ Function ON and OFF. ∆ displays adjacent to Frequency Readout when
active.
•• Moves up one directory (to the directory’s parent.)
∆= Accesses window to set RF Field change increment (∆ Freq).
/10 Activates /10 Mode for Level. Alters the scaling factor for the baseband
level.
/100 Activates /100 Mode for Level.
\
Adds a backslash to the directory.
0 dB Selects 0 dB Attenuation.
0.1 S Selects 0.1 Second Gate Time.
1 kHz Selects 1 kHz Range.
1 RAD Selects 1 Radian as active upper range for Phase Modulation Meter.
1 S Selects 1 Second Gate Time.
1 SHOT Selects and enables One Shot as Trigger type.
1.0 S Selects 1.0 Second Gate Time.
10 dB Selects 10 dB Logarithmic Scale for Spectrum Analyzer Vertical Scale.
10 kHz Selects 10 kHz Range.
10 RAD Selects 10 Radians as active upper range for Phase Modulation Meter.
10 S Selects 10 Second Gate Time.
100 Hz Selects 100 Hz Range.
100 kHz Selects 100 kHz Range.
100 kHz Selects 100 kHz Range.
100% Sets Distortion Meter Upper Range to
100%.
Selects 100% as active upper range for
AM Modulation meter.
1200 Selects 1200 bps Data Rate. Displayed only with cursor at Data Rate Field.
15 dB Selects 15 dB as active upper range for SINAD Meter.
15 kHz Selects 15 kHz bandpass filter as active
filter.
Selects 15 kHz IF Filter in optional BER
Meter operation.
2 dB Selects 2 dB Logarithmic Scale for Spectrum Analyzer Vertical Scale.
2 RAD Selects 2 Radians as active upper range for Phase Modulation Meter.
20 kHz Selects 20 kHz Range. Routes DTMF/SINAD Signal
through 20 kHz Low-Pass
Filter.
Activates 20 kHz Low-Pass
Filter in optional BER Meter
operation.
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General