Cassette Baud...
Posted: Tue Jul 17, 2012 9:10 am
Quick question, but I've had difficulty finding the information from Google: what's the (approximate is fine) baud rate of the Dragon 32's cassette interface?
Cheers.
Cheers.
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Really? I always thought it was 1 cycle of 1200 or 2 cycles of 2400 for each bit so that the bit time is the same.Sarah wrote:The symbol rate is variable, since it takes only half as long to transmit a "1" bit compared to a "0" bit. I wonder if the quoted baud rate accounts for this (perhaps being an average), or whether it even makes sense to have a single value rather than a range?
Yep!prime wrote:Really?Sarah wrote:The symbol rate is variable, since it takes only half as long to transmit a "1" bit compared to a "0" bit. I wonder if the quoted baud rate accounts for this (perhaps being an average), or whether it even makes sense to have a single value rather than a range?
Well spotted...zephyr wrote:This is fully explained on page 213 of Inside The Dragon.
Presumably Brian Cadge gives a lower approximate figure in his article to adjust for overheads."the effective data transfer rate from Dragon to cassette recorder is 1800 bits/second as, on average, there will be an equal number of ones and zeros recorded for a program or data file"