How many bps is 1200 baud FSK? How many bps = cps?
Walt/K5YFW KV9U wrote: > I used to struggle with converting from cps to wpm until one day my > brain actually kicked in and I made the association this way: > > cps x 60 seconds / 6 characters per word = wpm > > Therefore, if 120 cps x 60 = 7200 / 6 = 1200 wpm > > Thus, to convert from cps to wpm, just add a zero. > > To convert from wpm to cps remove a zero. > > But it also means that your can roughly estimate wpm as being similar to > the bps rate unless you are doing FEC and other coding: > > Thus 1200 bps ~ 1200 wpm. > > But because of overhead, I usually round a byte up to a nice even 10 > bits so I would agree with using a slower value such as your 120 cps. > > Seem reasonable? > > 73, > > Rick, KV9U > > > > > Walt DuBose wrote: > > >>How can 1200 baud = 1320 WPM? In the case of AX.25 baud=bps since a >>mark-space=one bit. >> >>An 8 bit ASCII character with start and stop bits would be 10 bps so 1200 >>bps=120 CPS. >> >>If a word is 6 characters, then 120 CPS = 20 WPM which we know is too slow. >> >>As far as a mode using a VariCode, the WPM throughput would normally be >>expected >>to be one CAP for every 60 lower case characters. That's less than 2% caps >>so I >>would think that you would get close to 190 WPM (maybe as low as 180 WPM) in >>a >>200 WPM mode using the VAriCode such as used in PSK125. >> >>I would assmue that on keyboard-to-keyboard QSOs that the robustness would be >>more of a concern than the throughput. >> >>73, >> >>Walt/K5YFW >> >>
