DMTA-10040-01EN, Rev. E, February 2018
Control Functions 117
however, the user can choose between displaying channel 1 (FREQ 1),
channel 2 (FREQ 2), or the mix signal (MIX).
CHANNEL
The Channel function is used to display which signal is being displayed:
frequency 1, frequency 2, or Mix.
To choose the CHANNEL, or signal displayed, press the DISP menu key ( ),
followed by the B key. With CHANNEL highlighted, rotate the knob to select the
desired signal, FREQ 1 (frequency 1), FREQ 2 (frequency 2), or MIX.
SWP MODE (sweep mode)
Sweep mode is used to control the instrument’s sweep mode, and includes AUTO
Y and AUTO XY for use with rotating scanners. AUTO Y contains the external
horizontal sync signal and AUTO XY contains both the horizontal and vertical
external sync signals.
To choose the sweep mode, press the DISP menu key ( ), followed by the
Ckey. With SWP MODE highlighted, rotate the knob to select the desired signal:
AUTO Y or AUTO XY.
V POS (vertical position)
Vertical position is used to control the signal trace shown on the instrument
screen and is only displayed when AUTO Y is selected. By default, the setting is
50 %, or centered on the screen. Choices for this setting range from 0 % (bottom of
the screen) to 100 % (top of the screen).
To choose the vertical position, press the DISP menu key ( ), followed by the
Ekey. With V POS highlighted, rotate the knob to select the desired position.
H POS
Changes the null position in the horizontal axis. To change the horizontal
position, press the DISP menu key ( ), followed by the D key. With H POS
highlighted, rotate the knob to select the desired position.
GRID
Five screen grid types are available: OFF, 10×10, FINE, COARSE, and WEB. By
default, the NORTEC 600 instrument uses a 10 × 10 grid.
To choose the grid to be displayed, press the DISP menu key ( ) twice,
followed by the D key. With GRID highlighted, rotate the knob to select the
desired grid.
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