CHD Elektroservis 7-701, User Manual, Page: 6 / 8

Spectral Ring Modulator
Module 7-701 v. 1.0
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5. HARMONIC FREQUENCIES SPECTRUM CONTROL
Spectral Ring Modulator module is equipped with special feedback function with level controlled by
SPECTRUM [3] potentiometer. This feature can create additional harmonic frequencies. In its most
left position (NARROW) the ring modulator creates only basic side frequencies (f
CARR
+ f
MOD
and f
CARR
-
f
MOD
), while in its most right position (WIDE) the maximum possible spectrum of harmonic
frequencies is created. The following charts on Fig. 5 depict the signal spectrum at RING-OUT output
for frequencies 2 kHz (CARR-IN) and 400 Hz (MOD-IN).
Fig. 5 –SPECTRUM regulator settings results