Re: Motorola 3400 problems, could this be the answer?

Article View: demon.tech.modems

Article #181

#181

From: Mark Baker
Date: Tue, 21 Oct 1997 00:00

12 lines
1385 bytes

In article <877424406snz@ibfs._nospam_demon.co.uk>,
	nojay@ibfs._nospam_demon.co.uk (Robert Sneddon) writes:

> (BTW what is bpsk? I assume "xx shift keying", but I don't understand
> the "bp" bit.)

Binary phase shift keying. You send a sine wave, and shift the sign by pi
for one or zero. In practice it would almost always be used with
differential coding so two adjacent bits of the same phase mean the second
is a zero, two bits with a pi phase shift between them mean the second is a
one.

Technical Details

Message-ID: <62ib4m$ftc$1@aziraphale.pet.cam.ac.uk>

Path: arc1-ca.pugleaf.net!unknown!not-for-mail

References:

<B0703ADC966835C1@cara.demon.co.uk> <877305327snz@ibfs._nospam_demon.co.uk> <877371673snz129.os2.7@nospam.demon.co.uk> <877385523snz@ibfs._nospam_demon.co.uk> <0000344BF948.NO_UCE@mauve.demon.co.uk> <877424406snz@ibfs._nospam_demon.co.uk>

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 102a94,9c1855028312d288
X-Google-Attributes: gid102a94,public
X-Google-Thread: fad9d,9c1855028312d288
X-Google-Attributes: gidfad9d,public
X-Google-Thread: 1004db,9c1855028312d288
X-Google-Attributes: gid1004db,public
From: mbaker@iee.org (Mark Baker)
Subject: Re: Motorola 3400 problems, could this be the answer?
Date: 1997/10/21
Message-ID: <62ib4m$ftc$1@aziraphale.pet.cam.ac.uk>
X-Deja-AN: 282243869
Sender: mnb20@aziraphale.pet.cam.ac.uk
References: <B0703ADC966835C1@cara.demon.co.uk> <877305327snz@ibfs._nospam_demon.co.uk> <877371673snz129.os2.7@nospam.demon.co.uk> <877385523snz@ibfs._nospam_demon.co.uk> <0000344BF948.NO_UCE@mauve.demon.co.uk> <877424406snz@ibfs._nospam_demon.co.uk>
Organization: University of Cambridge, England
Newsgroups: demon.tech.modems,demon.service,demon.ip.support

Reply to Parent Message