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IFR COM-120B - Page 32

IFR COM-120B
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Rev. 1.0 Page 32
The SINAD meter can be expanded to allow more control by positioning
the cursor to the SINAD meter label [TAB] [1] [6] [ENTER] and pressing
the F1 key “ZOOM
"
Ensure the C-MSG Filter is enabled
"
Enable SINAD Average to 10 for manual
measurements or turn Averaging OFF
for Automatic measurements.
"
Move Cursor to RF LEVEL (TAB, 2,
ENTER)
"
Select SINAD = and set the desired
SINAD point, (12 or 20 dB typical)
"
Activate Auto SINAD S = On/OFF
"
STAND BACK AND WATCH
1
TAB
6
ENTER
ZOOM
Scope source can be set to view Internal
Modulation source, Audio/Data Input port
or Notch Residual to evaluate receiver
performance.
Note: Averaging should be turned
off when performing automatic
SINAD search operations.

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