Wayne Parham Messages: 18774 Registered: January 2001
Illuminati (33rd Degree)
Single-frequency sine signals are useful for measuring speed accuracy and for measuring channel separation. Cartridge azimuth has an effect on channel separation: If the stylus is perfectly perpendicular to the groove, then a signal on the left channel groove will be present only on the left channel and not on the right, and vice versa.
1kHz sine
Using a 1kHz sine in both channels, we can see amplitude and phase matching:
1kHz on both channels
The amplitude and phase are well-matched between channels. Looks like there's a slight zero-offset difference between left and right channels.
1kHz on the left channel only
1kHz on the right channel only
The signal is present only on the channel intended, so azimuth is set pretty well.
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