--------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00009Date: 04/08/97 From: DAN CLOUGH Time: 08:47pm \/To: WAYNE CHIRNSIDE (Read 5 times) Subj: opinions, modems > hi, i'm once again trolling for opinions or information based on > experience with the new crop of modems offered for sale. > have heard many opinions that the new unproven 56k technology > is more a marketing ploy than something really practical at this > time. yet, i'm still contemplating purchasing a new modem at the Get the USR Sportster, or the USR Courier if you can afford it. I've been using both for several years, and wouldn't use any other brand. DLC dlc@seanet.com --- InterEcho 1.17 * Origin: Palantir Point * Marysville, WA * (1:343/304.1) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00010Date: 04/09/97 From: DAVE PETRUCCI Time: 12:25am \/To: MIKE FARRILL (Read 5 times) Subj: Re: 4400cps on a 33600/3 >-> 2) Max modem-modem throughput at 33,600, with error correction is >-> 4200 bps. EC overhead reduces this to the 4000 cps range. >Is the EC overhead you are refering to come from the use of the Zmodem >protocol? Y-modem-g is always faster. And also, he could be using the >512k lap-m packet size which would give more performance. Mike, A 33600bps non EC connect is capable of 3360cps... (10bits/char = (8 data bits, 1 start bit, 1 stop bit)).... With error correction, V.42 (LAPM or MNP4), the data is blocked and the start/stop bits removed... thus 8bits/char.. A 33600bps EC connnect is capable of 33600/8 = 4200cps.. The overhead Rick was refering to is a result of the control functions of the error correction itself... of course the larger the blocks, as you've suggested, will improve overall performance, but never above the 4200cps... Dave P. --- SLMAIL v4.5a (#1079) * Origin: The Rocket Shop BBS -=|Dover,DE|=- 302-674-4839 (1:2600/161) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00011Date: 04/07/97 From: KIRILL PANKRATIEV Time: 10:08pm \/To: ALL (Read 5 times) Subj: MODEM SUCKS! Hi, All! Modems suck forever! As i now have a tv cable connextion a also get a link to the internet! All that works through an Ethernet card and a special decoder plug'd into my TV socket. The speed is magnificent! - sometimes it raises up to 64Mbit/s! Which is really very fast. And moreover i only had to pay 58$(subscibtion) + 26$ for the card and 20$ to open a satallite channel. With Best regards, Kirill Pankratiev --- TV Cable Strasbourg * Origin: Russian French telebridge (2:325/3.19) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00012Date: 04/07/97 From: TONY COLONNO Time: 07:05pm \/To: MIKE FARRILL (Read 5 times) Subj: inside wiring Hello Mike! -=> Quoting MIKE FARRILL to TONY COLONNO <=- -> If you are talking about your house wiring, check your state and -> local codes. But I would go with 12-2 romex, 12-3 for split or -> double curcits. MF> Are those twisted pair? I'm sorry mike, I should have realized you were talking about phone wiring. :) I've been remodeling my house the last several months and have house wiring on my mind. Your local home hardware store should have some 4 conductor 24 gage solid copper phone cable. Be sure to get the one that is "rated for in wall use", not the modular phone cable. The former is a little more expensive than the latter but it has a thicker insulator jacket, cost is about 20 cents a foot. Also, be sure to use "crimp connectors" for all of your branching/splicing. Check your connections by giving a slight tug on the wires, they should stay tight. Tony ... Why then do the Wicked Prosper? --- FMailX32 1.22 * Origin: Fidonet: -=- Sloppy's BBS -=- (801) 969-4955 (1:311/19) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00013Date: 04/06/97 From: DAVID WEI Time: 05:59pm \/To: ALAIN FONTAINE (Read 5 times) Subj: Re: 4400cps on a 33600/3 -=> Quoting Alain Fontaine to Bill Cooper <=- AF> Myself, for instance, get CPS rates of around 5'500 on 28k8 AF> connects since I installed Windows NT :). Now there are two Oh yeah, I got about 20,000CPS under Terminate when I run it under OS/2 a long time ago... when I was still using a 14.4 modem... Those programs always becomes kinda wacky when run under some kind of multi-tasking OS. However, I think that the "CPS multipiler" feature in some comm program might be the cause for this... a good stopwatch will end all that arguement... :) ... Life's Great Irony #146: Turtles have a drag coefficient of .03 ___ Blue Wave/QWK v2.12 --- Maximus/2 3.01 * Origin: The CAGE, Vancouver, B.C. Canada +604-261-2347 (1:153/733) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4D00014Date: 04/06/97 From: DAVID WEI Time: 06:00pm \/To: MIKE FARRILL (Read 5 times) Subj: Re: 4400cps on a 33600/3 -=> Quoting Mike Farrill to Rick Collins <=- -> 2) Max modem-modem throughput at 33,600, with error correction is -> 4200 bps. EC overhead reduces this to the 4000 cps range. MF> Is the EC overhead you are refering to come from the use of the Zmodem MF> protocol? Y-modem-g is always faster. And also, he could be using MF> the 512k lap-m packet size which would give more performance. I think he was refering to V.42 Error correction, which I believe can also be called LAPM... (however, I'm not too sure about that... :) ) ... Vegetarian: Indian word for "Lousy Hunter " ___ Blue Wave/QWK v2.12 --- Maximus/2 3.01 * Origin: The CAGE, Vancouver, B.C. Canada +604-261-2347 (1:153/733) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4E00000Date: 04/09/97 From: LARRY GALLO Time: 05:55pm \/To: TONY FREW (Read 6 times) Subj: bbs com. Thank you I didn't even think to check the automatic setting with regard to hardware software settings.... i copied down those init strings as well hope it fixes it tHANKS A LOT Larry Gallo --- Maximus 3.01 * Origin: The Treehouse Club 613-825-2932/206.130.50.192 (1:163/416) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4E00001Date: 04/08/97 From: RICK COLLINS Time: 07:29pm \/To: BILL COOPER (Read 6 times) Subj: 4400cps on a 33600/3 -=> Quoting Bill Cooper to Rick Collins <=- -=> FidoMail to 1:163/215, please.-=< -> Assumption 3 remains as the only questionable assumption. -> Given (1) and (2), and the fact that you observed "4400 cps" -> throughput, assumption 3 cannot be correct. Ergo, the files -> were not fully compressed, and some modem-based compression -> was in effect. bc> regardless of the limitations of a 33.6k connect... all of the bc> techie stuff you've listed... your entire post... I did see this bc> speed and it was confirmed by the sysop of that BBS. I couldn't bc> care less about the details of whether it was a loosely packed bc> zip file, Ah, but that's the point. This started with your assertion that you saw 4400 cps throughput with a fully-compressed file. I have no doubt you saw 4400cps throughput. I have never disputed that. But it wasn't a "fully compressed file", and _that_ is the point. If you think it _isn't_ the point, I have seen throughput _much_ higher than that with 28.8 (in excess of 7000 cps) but that wasn't with a compressed file. bc> All that my post stated was that I saw this speed and had it bc> comfirmed. Nothing was irrational about it. Why do you have bc> such a problem with this? If that's all you said I wouldn't have had a problem with it, or even commented at all. TTFN. Rick. Ottawa, ON 8 Apr 19:37 --- Blue Wave/DOS v2.20 * Origin: BitByters BBS, Rockland ON, Can. (613)446-7773 v34, (1:163/215) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4E00002Date: 04/08/97 From: RICK COLLINS Time: 07:38pm \/To: CHARLES BROWN (Read 6 times) Subj: 56.6k -=> Quoting Charles Brown to All <=- -=> FidoMail to 1:163/215, please.-=< cb> Is the 56.6k actually real or is it all done via a software cb> component? It's 56000, it's real, and it's done with a different protocol which is written in software - just as V.34 is. cb> mainly.. does the 56.6 upgrade activate some chip or something cb> already built in to make the 56.6 become active.. or is it just cb> some sort of quicker protocal with better compression? It's different software if you have a programmable DSP and flash ROM, it's different software on a different chip if you don't. TTFN. Rick. Ottawa, ON 8 Apr 19:40 --- Blue Wave/DOS v2.20 * Origin: BitByters BBS, Rockland ON, Can. (613)446-7773 v34, (1:163/215) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: E4E00003Date: 04/08/97 From: RICK COLLINS Time: 07:43pm \/To: WAYNE CHIRNSIDE (Read 6 times) Subj: opinions, modems -=> Quoting Wayne Chirnside to All <=- -=> FidoMail to 1:163/215, please.-=< wc> doesn't materialize, at least i'll be up to 33.6 from 14.4. wc> anyone care to offer their opinions, especially those with wc> experience with the above manufacturers or experience in the wc> computer communications industry. thanx. Neither X2 nor K56Flex is likely to be the standard adopted by the ITU, so both are probably interim measures. _Therefore_, whatever you buy, make sure you have an upgrade path. If you buy a flash ROM modem for software updates, make _sure_ it has a programmable DSP (digital signal processor) as well. There are flash ROM modems out there than cannot be upgraded to K56 simply because their fixed-function datapump would have to be replaced. The flash ROM alone isn't enough, necessarily. TTFN. Rick. Ottawa, ON 8 Apr 19:47 --- Blue Wave/DOS v2.20 * Origin: BitByters BBS, Rockland ON, Can. (613)446-7773 v34, (1:163/215)