🚀 go-pugleaf

dawson@hobbes.bsan.bls.com (Willard Dawson) writes:
> I don't really want to be pedantic, but...
> jeff@amikoj.rn.com (Jeff Kunce) writes:
> > ...
> >EXPLANATION OF MODEM SETTINGS:
> >   - V.32bis "on"  (Mine is set to connect at highest possible speed)
> >   - compression "off" (no V.42, no MNP :  %M0 on my modem)
> >   - correction "off" (no V.42.bis, no MNP5 : &Q6 on my modem)
> 
>     v.42 is "correction"
>     v.42bis is "compression"

Thanks for the correction, Willard. My typing skills are not quite
up to the modem-spec-alphabet-soup. I "meant" to say:

EXPLANATION OF MODEM SETTINGS:
   - V.32bis "on"  (Mine is set to connect at highest possible speed)
   - compression "off" (no V.42bis, no MNP5 :  %M0 on my modem)
   - correction "off" (no V.42, no MNP : &Q6 on my modem)

>     Why do you not want v.42 correction, or MNP correction?

Well, I originally asked why, after moving to a V.32bis/V.42bis modem, 
I was only getting throughput of 900-1000 cps. After digesting the many 
answers I received, I tried several settings, with the following pertinent
results:

V.32bis+V.42+V.42bis         ~950 cps
V.32bis+V.42                ~1200 cps
V.32bis                     ~1300 cps

I don't know why, but I ran enough transfers to convince me, that for *my*
system, I get best throughput with correction and compression both "off".

Error correction *does* help, however, in logging on to my feed. Now and
then, my logon will fail due to data errors when correction is off. I
haven't decided yet if that costs more than losing 100cps...

> Your milage may vary, of course.

Amen! And you're welcome to what works best for you :-)

  --Jeff

--
jeff@amikoj.rn.com (Jeff Kunce)
Jefferson City, Missouri