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- Xref: sparky comp.sys.amiga.datacomm:8336 comp.dcom.modems:18440 bit.listserv.i-amiga:9937
- Path: sparky!uunet!comp.vuw.ac.nz!actrix!tower!johnv
- From: johnv@tower.actrix.gen.nz (John Veldthuis)
- Newsgroups: comp.sys.amiga.datacomm,comp.dcom.modems,bit.listserv.i-amiga
- Subject: Re: Supra problems wanted
- References: <1992Dec16.143207.23322@hubcap.clemson.edu> <1992Dec16.231731.508@sbcs.sunysb.edu> <sherlock.003k@sleuth.eskimo.com>
- <1992Dec19.123231.1959@sbcs.sunysb.edu>
- Followup-To: comp.sys.amiga.datacomm,comp.dcom.modems,bit.listserv.i-amiga
- Distribution: World
- Message-ID: <johnv.0ajc@tower.actrix.gen.nz>
- Date: 22 Dec 92 22:54:06 +1200
- Organization: Amiga Virus Extermination Services, TAUG
- Lines: 17
-
- Quoted from <1992Dec19.123231.1959@sbcs.sunysb.edu> by dtiberio@engws10.ic.sunysb.edu (David Tiberio):
- >
- > &T8 - this is the internal line quality test option. It always
- > returns "Your modem is working fine, but you have lots of line noise"
- > even though you never see any line noise, and none of your other
- > modmes have any of the problems listed above.
-
- You don't have to hear line noise for it to effect a modem. Try using a
- Telebit T2500 at PEP speeds at what appears to be a perfect line. Not a
- whisper of noise. Then after the call has finished read an S register and
- see what channels where mapped out. Gee there are quite a few that are not
- used. Can't be noise because I can't hear it.
-
- Some modems handle noise better than others. This has to do with signal
- strength.
- ---
- *** John Veldthuis, Taranaki Amiga Users Group, johnv@tower.actrix.gen.nz ***
-