[comp.sys.amiga] Jrcomm and 14.4k

n350bq@tamuts.tamu.edu (Duane Fields) (12/10/90)

I have an Amiga 3000 with a 14.4k v.42 USR modem. Most of the boards I
call run on IBM's and the highest xfer rate I have obtained is 1650cps.
I here I should get 1700 at least on compressed files (.lzh, etc)
Anyone done this?? And also, what is new/different about v.42 as
USR didn't send me any xtra paperwork when I upgraded.

Duane

spierce@pnet01.cts.com (Stuart Pierce) (12/10/90)

The highest speed I have attained is 1654 CPS, but then I don't have the
V.42 upgrade.
 
Stuart W. Pierce

koren@hpfcdc.HP.COM (Steve Koren) (12/17/90)

> I have an Amiga 3000 with a 14.4k v.42 USR modem. Most of the boards I
> call run on IBM's and the highest xfer rate I have obtained is 1650cps.
> I here I should get 1700 at least on compressed files (.lzh, etc)

What xfer protocol are you using?  It makes a difference.  zmodem
will generally give speeds around the 1650 bps figure you mention.
Ymodem/G is slightly faster; I think this is because it is designed
for error correcting modems and it sends less status information.
I can routinely get 1720 cps with ymodem/G, and the registered version
of JRcomm 1.0.

  - steve