MUMODEMS Archives

November 1994

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Subject:
From:
"Robert A. Pickering Jr." <[log in to unmask]>
Reply To:
Miami's Modems <[log in to unmask]>
Date:
Tue, 29 Nov 1994 08:57:48 -0500
Content-Type:
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Democ ([log in to unmask]) wrote:
: A few questions:
:
:         1)  I have a 14.4 ZoomFax modem (Hayes compatible), the highest
: downloading speed I have been able to achieve is 1200 cps.  Is this the same
as
: 1200 baud?  If not what is the conversion ratio?  Should I be able to get
: higher than 1200 cps?  (FYI I am dialing in on 529-4999, the 14.4. line)
 
Nope, you're getting almost your full modem speed.  1200 cps is 1200 bytes
per second.  Your modem is 14,400 bits per second, or approximately 1400
bytes per second (1400 cps).  So, you're doing pretty well.
 
:         2)  I am connected at 8N1 (hitting the ; key and typing miavx1) so
that
: I can use Z-Modem.  I can get any text files fine, however when I have gone
to
: ftp sites to download zip files (typing in binary before getting them from
the
: ftp site) I am running into error corrections about every other minute.  I
: haven't been able to get a large .zip file down with out these errors and
thus
: it won't unzip (even after running zipfix).  I (to my knowledge have my error
: correction turned on, but I can't swear to that, I am not sure how to check,
I
: have read the manual and followed what it said to do (some at commands I
don't
: have them handy))  Is this problem unique to me?  Is there something I am
doing
: wrong?
 
The problem is Zmodem on the VAX.  In MCIS testing we've been able to get
excellent results downloading via the Kermit protocol, if you tune it.
 
Contact Kent Covert ([log in to unmask]) for information on tuning kermit.
 
--
Robert A. Pickering Jr.                           UNIX Software Specialist
Miami Computing and Information Services          [log in to unmask]
 
"Most people, if they counted how many people swam across the river, would
never think about building bridges."  - Ronald Altman

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