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000169_news@newsmaster….columbia.edu _Fri Aug 15 16:38:26 1997.msg
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From: mts@icf.hrb.com (Mark T. Shirey)
Newsgroups: comp.protocols.kermit.misc
Subject: Turn off error detection?
Message-ID: <1997Aug15.161848.25354@hrbicf>
Date: 15 Aug 97 16:18:48 EST
Organization: HRB Systems, Inc.
Lines: 15
Xref: news.columbia.edu comp.protocols.kermit.misc:7474
We want to send a 10KByte JPEG image file over a 2400 baud half-duplex
satellite channel with a high bit error rate (1-in-1000).
We want speed and will sacrifice image quality.
Is there a graphics file format (that xv or ImageMagick can handle)
that can suffer missing or corrupted bytes and still be a viewable image?
(I'll also ask this question in a more appropriate venue if I can find one.)
Can C-Kermit be told to turn off all error checking?
Like "SET BLOCK-CHECK 0"?
Or is BLOCK-CHECK 1 sufficiently lenient on, say, 8K packets
to have very few retries even in a noisy environment?
Mark Shirey mts@hrb.com