Article View: sci.electronics
Article #19482Re: 9600 baud modems
From: John Logajan x3118
Date: Wed, 20 Jul 1988 15:43
Date: Wed, 20 Jul 1988 15:43
14 lines
1213 bytes
1213 bytes
In article <1044@unccvax.UUCP>, dya@unccvax.UUCP (York David Anthony) writes:
> This is how **some** 9600 baud modems work. Real 9600 baud
> modems work by quadrature amplitude modulation
> Each four bits represents a unique amplitude and phase.
This is point of view dependent. You can say QAM is built your way or you can
say that QAM represents the resultant waveform of multiple simultaneous
frequency synthesis. After all, any arbitrary waveform can be constructed from
the proper combination of various sinewaves.
My point is that high baud rates can be seen as a form of parallelism.
- John M. Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428 -
- {...rutgers!umn-cs, ...amdahl!bungia, ...uunet!rosevax!bungia} !ns!logajan -
Technical Details
Message-ID:
<506@ns.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!pacbell!lll-tis!helios.ee.lbl.gov!pasteur!agate!ig!uwmcsd1!nic.MR.NET!umn-cs!ns!logajanReferences:
<1127@nunki.usc.edu> <478@ns.UUCP> <1044@unccvax.UUCP>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!pacbell!lll-tis!helios.ee.lbl.gov!pasteur!agate!ig!uwmcsd1!nic.MR.NET!umn-cs!ns!logajan From: logajan@ns.UUCP (John Logajan x3118) Newsgroups: sci.electronics Subject: Re: 9600 baud modems Summary: same difference Message-ID: <506@ns.UUCP> Date: 20 Jul 88 15:43:28 GMT References: <1127@nunki.usc.edu> <478@ns.UUCP> <1044@unccvax.UUCP> Organization: Network Systems Corp. Mpls MN Lines: 14