4-41
SECTION 4
OPERATION
4-2-5 AM MODULATION METER OPERATION
The AM Modulation Meter for the RF Receiver measures AM Modulation for an RF
Signal. Filtering, for the signal passed to the AM Modulation Meter, is provided by the
Audio/Data Filters.
Configure and operate the AM Modulation Meter as follows:
ZOOM
Displays full screen AM Modulation Meter.
o Enter RF as required.
O
T
e
n
Editing RF field affects level on RF Receive Operation Screen.
Select Range as follows:
40%
Selects 40% range.
100%
Selects 100% range.
AUTO
Selects Autorange for Range.
If Peak Hold Function is desired, take
meter out of Autorange and configure as
follows:
OFF/ON
Toggles Peak Hold Function ON or OFF.
RST PK
Resets Peak Hold Function.
If Average Function is desired, configure
as follows:
OFF/ON
Toggles Average Function ON or OFF.
Cursor to Sample Number to enter
desired value. Range is 2 to 10.
MODULATION
100 %0 %
83.1 %
AM MODULATION METER
105.0000 MHz
MOD METERS
ON
ON
ON
OFF
RF:
Source:
Peak Hold:
Average:
Upper Limit:
Alarm:
Lower Limit:
ON
Range:
100 %
10.00
90.00
2
Peak Hold:
Average:
ON
ON 2
Average:
Upper Limit:
ON
ON 28.0
2
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General