5-12
SECTION 5
COMMON PRACTICES
5-1-6 GENERATING RF SIGNAL USING EXTERNAL MODULATION
This procedure configures the RF Generate Operation Screen to transmit an RF Signal
FM Modulated with 1 kHz External Modulation Source.
The deviation is set at 5 kHz by adjusting the input level of the Modulation
Signal.
The Output Level is -50 dBm.
P
R
E
P
o Set RF Field to
Rcvr Center Frequency
.
o Set Output Level to
-50 dBm
.
o Set Output to
T/R
.
o Select External Modulation (
EXT
) for Modulation Source.
o Set Modulation Type to
FM
.
o Set Deviation Range to
NAR 3
.
o Configure RF Generate Operation Screen for active
SCOPE
.
o Set Oscilloscope Sweep for
1 ms/div
.
o Set Oscilloscope Source for
Scope/DVM-AC
.
o Connect External Modulation Source to SCOPE/DVM IN Connector.
o Set External Modulation Source for 2.5 Vp. This setting produces 5 kHz Deviation
independent of signal shape.
o Connect External Modulation Source to EXT MOD IN Connector.
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