Niels Moseley
More #PSK31 programming today. To test my receiver code I simulated the character error rate (CERR) based on 256k characters of Lorem Ipsum. The graph shows the CERR versus the signal to noise ratio(SNR) of the received signal. Simulating the CERR makes more sense than the bit error rate (BER) because the PSK31 alphabet (a.k.a VARICODE) varies in the number of bits per character. #hamradio #dsp
Oct 23 at 7:03pmTuba
Show threadNiels MoseleyOct 23
A flaw in the PSK31 encoding is the fact that it delimits each character by "00". If one of those bits flips due to noise, the synchronization is lost and both the current and next character won't decode properly.