- Garbage binary data in connections without error correction
- Posted by arthurpaulh@yahoo.com on June 28th, 2004
Hi!
I did recently a lot of tests using a MapleTree 2100 board, and I have
some problems when I use V.32 or V.34, no error correction, no
compression, 46 channels in local loop:
from time to time I receive garbage binary data, like (in hex): " 6f
c9 70 b4 ee 06 f9 46 a8 b3 d3 28 75 4f ae 1b ", before or after the
test file (and rarely overlapping small portions of the test file).
Does anyone know a reason for this behaviour?
-------
Arthur Harabula - arthurpaulh@yahoo.com
- Posted by Chaos Master on June 29th, 2004
(arthurpaulh@yahoo.com) said those last words:
I don't know what is a MapleTree 2100, but I will give a guess:
Noise on the phone line? This is the most obvious.
[]s
--
© Chaos Master. | "I've tried so hard to tell
My Evanescence HP is at: | myself that you're gone
http://marreka.no-ip.com | And thought you were still
(most often offline... ) | with me..."
------------------------- -- Evanescence, "My Immortal"
- Posted by Geoffrey Welsh on July 2nd, 2004
arthurpaulh@yahoo.com wrote:
While the obvious answer is some kind of noise, I'd guess that this
(occasional glitches in high-speed modulations) is very common, and it's the
reason why practically every modem over 2400 bps is sold with error
correction.
--
Geoffrey Welsh <Geoffrey [dot] Welsh [at] bigfoot [dot] com>
[This space for rent]
