IARU Region 1 Technical Recommendation D.2
CEFALU 1984
Page 1 of 1
PROVISIONAL
STANDARD FOR DELTA-MODULATION For experiments with digital speech transmission CSVD (Continuously Variable Slope Delta) modulation based on the IC's commercially available for this purpose should be used with the following parameters : - 3 bit adaptive algorithm as used in the IC's FX309, HC55516, MC3417 - bit rate : 16 kbit/second ± 50 ppm - primary integrator time constant : 1 millisecond - syllabic integrator time constant : 4 milliseconds - modulation : F1E with Df = ± 10 kHz |