From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Sat, 11 Feb 2006 04:48:13 +0500 From: Andrey Rahmatullin To: smoke-room@lists.altlinux.org Subject: Re: [room] =?koi8-r?B?68nMz8LJ1C/TxcvVzsTV?= Message-ID: <20060210234813.GN23764@wrars-comp.wrarsdomain> References: <20060208120853.GI4916@ldc.net> <20060208182036.GT24501@wrars-comp.wrarsdomain> <20060209072044.GB4420@ldc.net> <20060209183358.GH13824@wrars-comp.wrarsdomain> <20060210070700.GA4309@ldc.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MsEL38XAg4rx1uDx" Content-Disposition: inline In-Reply-To: <20060210070700.GA4309@ldc.net> X-Operating-System: ALT Linux Sisyphus User-Agent: Mutt/1.5.11 X-Spam-Status: Unsure, tests=bogofilter, spamicity=0.823574, IP:212.23.82.193 X-Sagator-Scanner: 0.5.4-0rc6 at d163; drop(clamd()) deliver(BogoFilter()) X-Sagator-id: 20060211-044827-0001-06860-tDn87h X-BeenThere: smoke-room@lists.altlinux.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: =?koi8-r?b?y9XM2NTV0s7ZyiDPxtTP0MnL?= List-Id: =?koi8-r?b?y9XM2NTV0s7ZyiDPxtTP0MnL?= List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Feb 2006 23:48:47 -0000 Archived-At: List-Archive: --MsEL38XAg4rx1uDx Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 10, 2006 at 09:07:00AM +0200, Dmytro O. Redchuk wrote: > =E4=D2=D5=C7=C9=CD=C9 =D3=CC=CF=D7=C1=CD=C9, =D0=D5=D4=C1=CE=C9=C3=C1 =CE= =C5 =CD=C5=D6=C4=D5 =C2=CF=C4=C1=CD=C9 =C9 =C2=C9=D4=C1=CD=C9, =C1 =CD=C5= =D6=C4=D5 =D3=C9=CD=D7=CF=CC=C1=CD=C9 =C9 > =C2=C9=D4=C1=CD=C9?!. (=C9=CC=C9 =D4=CF=CC=D8=CB=CF =D5 =CD=C5=CE=D1 =D7 = =C7=CF=CC=CF=D7=C5?) The concepts of bandwidth, baud, symbol, and bit rate are commonly confused, so let us restate them here. The bandwidth of a medium is the range of frequencies that pass through it with minimum attenuation. It is a physical property of the medium (usually from 0 to some maximum frequency) and measured in Hz. The baud rate is the number of samples/sec made. Each sample sends one piece of information, that is, one symbol. The baud rate and symbol rate are thus the same. The modulation technique (e.g., QPSK) determines the number of bits/symbol. The bit rate is the amount of information sent over the channel and is equal to the number of symbols/sec times the number of bits/symbol. =F4=C1=CD =D6=C5. > =F0=CF=DC=D4=CF=CD=D5, =D3=CB=C1=D6=C5=CD, 2400 =C2=CF=C4 =C4=C1=A3=D4 14= 400 =C2=C9=D4/=D3=C5=CB. =E4=C1. 2400 - =D3=C9=CD=D7=CF=CC=D8=CE=C1=D1 =D3=CB=CF=D2=CF=D3=D4=D8, 144= 00 - =C9=CE=C6=CF=D2=CD=C1=C3=C9=CF=CE=CE=C1=D1. > =FE=D4=CF =C5=D3=D4=D8 "=D3=C9=CD=D7=CF=CC"? =E9=CD=C5=CE=CE=CF "=CB=D5= =D3=CF=DE=C5=CB =C9=CE=C6=CF=D2=CD=C1=C3=C9=C9", "=D0=CF=D3=CC=C5=C4=CF=D7= =C1=D4=C5=CC=D8=CE=CF=D3=D4=D8 =C2=C9=D4"? =F3=CD.=D7=D9=DB=C5. > > =F4=C1=CE=C5=CE=C2=C1=D5=CD. > =E1 =D3=D3=D9=CC=CB=C1 =C5=D3=D4=D8 =CB=D5=C4=C1-=CE=C9=D4=D8? =EB=C1=CB = =CF=CE =D0=C9=DB=C5=D4=D3=D1 =D0=CF =C9=C8=CE=C5=CD=D5?-) =F3=CD. =D2=D1=C4=CF=CD. =F1 =C3=C9=D4=C9=D2=D5=C0 =C9=DA Prentice Hall - (= Tannenbaum) Computer Networks, 4ed.chm (=D7=D0=D2=CF=DE=C5=CD, =C9=D3=CB=C1=CC =D3=C1=CD =D4=C5=CB=D3=D4 =D7 =C2= =D5=CD=C1=D6=CE=CF=CA =D7=C5=D2=D3=C9=C9 ;)) --=20 WBR, wRAR (ALT Linux Team) Powered by the ALT Linux fortune(8): =D3=C5=CA=DE=C1=D3 mike@ =D0=D2=C9=CA=C4=C5=D4 =C9 =C2=D5=C4=C5=D4 =D7=D3= =C5=CD Administrativa -- gns in community@ --MsEL38XAg4rx1uDx Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFD7SY9B4Vf7hFmt5URAqSNAKCg3OcXQFaQzdihEk0tm8tOx/fIVgCcDdop cZsk8SGyJr7Gh9gYaUBI4dU= =5aYK -----END PGP SIGNATURE----- --MsEL38XAg4rx1uDx--