GW Instek GOS-6103C - Manual (Page 9)

GOS-6103C OSCILLOSCOPE
USER MANUAL
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(7).20MHz BWL – Pushbutton with indicator LED.
Briefly pressing the pushbutton, the bandwidth is reduced to approx.
20MHz, and the measurement is made by eliminating undesired high
frequency signal from the waveform. Also the high frequency
component over 20MHz is eliminated from the trigger signal.
(8).CURSOR POS - △V1/2 — Pushbutton with double function and
associated indicator LED.
The function of Cursor Position or CH1/CH2 Position can be selected
only after the pushbutton of Cursor Function is pressed to appear
enabling their cursor measurement. Press the pushbutton once briefly
to have the related LED lighted, the CH1/CH2 POSITION control
knob is then operated as CURSOR 1/CURSOR 2 POSITION control.
△V1/2
The function is required and available only in DUAL mode in
combination with △V (Voltage) measurement. Pressing and holding
the pushbutton, then switch between CH1 and CH2, the measured
result will be displayed by the readout with “△V1…” or “△V2…”
providing the defection coefficient is calibrated. The settings of the
cursors must be related to the signal of the selected channel.
(9).CH1 POSITION – C1 — Control knob with double function.
The vertical trace position of channel 1 can be set with the control
knob, which is also operated as CURSOR 1 position control in cursor
measurement mode.
(10)CH2 POSITION – C2 — Control knob has several functions.
The vertical trace position of channel 2 can be set with the control
knob, which is also operated as CURSOR 2 position control in cursor
measurement mode. In alternate time base mode, this control knob
can be used to separate the DELAY time base trace from the MIAN
time base trace. Please note TRACE SEP (11).
GOS-6103C OSCILLOSCOPE
USER MANUAL
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14
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(11)TRACE SEP
The instrument contains a trace separate function which is required in
the alternate time base mode to separate the DELAY time base trace(s)
from the MAIN time base in vertical direction. Consequently this
function is only available in alternate time base mode. Press the
pushbutton once to have the related LED lighted, the CH1 POSITION
control knob is then operated as vertical position control for the trace(s)
of the DELAY time base.
(12)ALT/CHOP/ADD-INV
The pushbutton has several functions, which are required and available
only when both channels are active.
ALT– Displays in the readout, indicates alternate channel switching.
After each time base sweeps the instrument internally, switches over
from channel 1 and channel 2 and vice versa.
CHOP– Indicates chopper mode.
The channel switching occurs constantly between channel 1 and
channel 2 during each sweep.
ADD– Displays in the readout, indicates additional mode.
Whether the algebraic sum (addition) or the difference (subtraction) of
both input signals is displayed, depends on the phase relationship and
the INV setting. As a result, both signals are displayed as one signal.
For correct measurements, the deflection coefficients for both channels
must be equal.
INV—Pressing and holding the pushbutton to set the channel 2 invert
function on or off. The invert on condition is indicated with a horizontal
bar above “CH2” in the readout. The invert function causes the signal
display of channel 2 to be inverted by 180 o .