Table of Contents
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Block Diagrams
Audio Generator Section
Audio Generator Section
Waveform Generation
The A2A32 Signal Source and Analyzer, see
Figure 10-15 on page
306,
gets frequency and wave shape information from the Controller.
Waveform values are calculated real-time by a digital waveform
synthesis IC. The LFS1 output is always a sine-wave. The LFS2 output
is a sine-wave unless one of the function generator waveforms is
selected, or signaling is selected from the front panel.
Level Control
Audio level is controlled by the A2A44 Modulation Distribution
assembly, see
Figure 10-16 on page
307, by using a DAC and variable
attenuators. The leveled audio signal is passed on to the RF Generator
section.
Chapter 10
305
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Table of Contents
Troubleshooting
