>-> 2) Max modem-modem throughput at 33,600, with error correction is
 >-> 4200 bps.  EC overhead reduces this to the 4000 cps range.
 >Is the EC overhead you are refering to come from the use of the Zmodem
 >protocol?  Y-modem-g is always faster.  And also, he could be using the
 >512k lap-m packet size which would give more performance.
Mike,
       A 33600bps non EC connect is capable of 3360cps...
       (10bits/char =  (8 data bits, 1 start bit, 1 stop bit))....
       With error correction, V.42 (LAPM or MNP4), the data is
       blocked and the start/stop bits removed... thus 8bits/char..
       A 33600bps EC connnect is capable of 33600/8 = 4200cps..
       The overhead Rick was refering to is a result of the control
       functions of the error correction itself... of course the
       larger the blocks, as you've suggested, will improve overall
       performance, but never above the 4200cps...
Dave P.
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