GW Instek GRF-1300A - Manual (Page 13)

Introduction to the GRF-1300A
• The Four-digit display is used to display the frequency of
the carrier signal.
• FM in port and RF / FM Output port are used to receive
the FM signal and output the carrier signal respectively.
• TP2, TP3 and TP1 are used to monitor for breaks in the
circuit. For the position of each test point, please see Figure
A-7.
Figure A-5. RF
Synthesizer/FM
module
6. The AM module is used for amplitude modulation. The AM
in port and RF in port are used to input the modulating signal
and the carrier signal respectively. The AM output port
outputs the amplitude modulated waveform.
Figure A-6.
AM module
The mixer can convert the RF signal into an intermediate
frequency signal or it can do the opposite and convert the
intermediate frequency signal into an RF frequency signal in
order to transmit or process the carried message, respectively.
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