DS2460Q QAM Analysis Meter Operation Manual
70
but it has better amplitude accurate.
The SPECT function has several fixed span settings:
2.5MHz, 6.25MHz, 12.5MHz, 25MHz, 62.5MHz, Full
Band.
User press
(MAX-HOLD) can active the peak
value hold function. The max hold function is used to
hold the spectrum trace peak value, as show in the
Figure 4-51. User press
(HOLD) can active the
hold function, this function can temporary freeze the
spectrum trace. If the cursor on marker A or B, user
can use the
and
buttons to move the
marker. If the cursor move on the REF or SCALE
position, user also can use the
and
buttons to modify the value.
The AUTO function is used to adjust reference level
and scale quickly . The meter will automatically adjust
them to most optimal state.
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