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3 Function keys
In normal operation the following menus are displayed at the bottom of the LCD.
To select one of these menus press the corresponding function key
RUN
STEP
MODE
SQL
RUN
STEP
MODE
SQL
F1
F2
F3
F4
1 RUN
[1] Pressing the key highlights the
icon located at the bottom of the LCD
(see above figure). Scanning will start, or enable the counter if the counter function has
been selected.
F1
RUN
[2] Pressing the key a second time, will stop the scanning or, when in the counter
mode, the counter will stop measuring
F1
2 STEP
[1] Pressing the key displays the step frequency menu.
F2
[2] The step frequency determines the scanning frequency increment. (Example; the frequency
Marker indicator will increment every 50 KHz if a step frequency of 50 KHz is selected.
[3] The frequency span in the manual Scanning mode is also determined by the step frequency.
(Span = No. Of channels per display as selected from the function menu multiplied by the
step frequency. Example: If an 80-channel bar graph display is selected from the Function
menu and the frequency step is 100KHz the Frequency Span is 8 MHz)
[4] When the 2-channel difference display is selected, the step frequency determines the
difference frequency. Example: If the marker frequency is 59.75 MHz signal level bar
graphs will be displayed along with their signal level amplitude values and the difference
in signal level amplitude.
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