[WriteLog] W5XD Keyer & USB Connection REPLIES

[Richard Elling]

Clive Whelan wrote:

>Consensus appears to be, that although *rig* control via USB should be fine
>there is no guarantee of this being the case for keyer command timing and
>that currently a single serial port should be used, although USB 2.0 *might
>* be acceptable.
>
>  
>
I think this is a red herring.  USB transfer rates are orders of magnitude
greater than RS-232.  USB 1.x does 1.5 Mbits/s or 12 Mbits/s.  USB 2.0
does 480 Mbits/s.  It is more likely that the cause of our troubles is the
Windows driver. Whatever the cause, it has nothing to do with the
performance of USB as a technology.
 -- richard