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IFR COM-120C - Page 144

IFR COM-120C
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4-71
SECTION 4
OPERATION
IF Source is SCP/ DVM AC, AUDIO/ DATA
IN or EXT MOD IN, configure as follows:
Vrms
Converts reading units to Vrms.
dBm
Converts reading units to dBm. Set
Impedance for desired load. Place
required load on connector specified by
Source.
dB
Converts reading units to dB.
Set Scope Sweep as follows:
MENU
Accesses a menu of available selections.
ROLL
To view the scope trace in a roll mode
when selected sweep rate is 100 ms/div
or higher.
SLOW
Exits roll and returns to normal mode of
operation.
1.000 Vrms
29.4 Vrms
Peak High:
Peak Low:
0.961 V
0.226 V
Alar
500 us/div

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