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- Newsgroups: comp.dcom.modems
- Path: in1.uu.net!netlabs!lwall
- From: lwall@netlabs.com (Larry Wall)
- Subject: Re: Cardinal MVP288XF and 1.4 ROM
- Message-ID: <1996Mar4.185722.14421@netlabs.com>
- Reply-To: lwall@sems.com
- Organization: Seagate Enterprise Management Software, Cupertino, California.
- References: <4h5v9v$u83@news.xroads.com> <4h7b3d$ns0@juliana.sprynet.com>
- Date: Mon, 4 Mar 1996 18:57:22 GMT
-
- In article <4h7b3d$ns0@juliana.sprynet.com>,
- Walter P. Gewin Jr. <wpg@sprynet.com> wrote:
- : I've been running with the 1.4 update for about a month. Better
- : connects and no problems. There's a known bug where the semocolon in AT
- : commands will turn off the speaker, but other than that it's worth going
- : for it.
-
- Better connects in what sense?
-
- I sent the following off to techs@cardtech.com, but haven't heard anything
- back. Do they answer email? Does anyone here have any info on this?
- Would 1.4 help with this? I'll probably risk 1.4 pretty soon if I don't
- hear otherwise, but I'd really like to understand the mystery about %Q.
- Educated guesses and partial answers are welcome.
-
- Larry Wall
- lwall@sems.com
-
- To: techs@cardtech.com
- Subject: How meaningful is %Q really?
- Date: Fri, 01 Mar 96 18:09:30 -0800
- >From: Larry Wall <lwall@vaccine-bb.netlabs.com>
-
- Hi, I have an MVP288XF, ROM v1.20, I6=04bc, and its behavior is puzzling
- me. If I bring it into work, and hook up to our modems here, it gets a
- carrier of 28.8 just fine, though %Q indicates a line quality of about
- 14, on average. If I take it home (which is still a local call) and
- call the same modems, I get a %Q of about 4, which is supposedly much
- better. Yet from home, it'll only get only get a carrier in the range
- of 12-16k, instead of 28.8. It still works pretty okay, what with the
- LAP-M and V.42bis, which seem to work fine, but I'd sure love to figure
- out how to get it to go 28.8 from home. That's what I bought the modem
- for, after all. It's a bit frustrating.
-
- It's talking to my computer (an Amiga 3000) at 115,200 just fine, but I
- get the same results at lower baud rates.
-
- %L is 24, as I recall. Other than turning off the speaker, it's
- pretty much running the factory settings. Well, and S95=46 to see
- what's going on, of course.
-
- Our house has two phone lines, and they behave identically. The modems
- at work are Telebit FastBlazer 8820's.
-
- Are there any magical variables to look at to determine why it's not
- hooking up closer to 28.8?
-
- The thing that really puzzles me, is if I really just have a rotten
- phone line, why does %Q not seem to think so? It seems more likely to
- me that the line quality really is that good, but that something isn't
- quite working in the initial negotiations. But I'm just guessing.
-
- I looked at the docs for 1.40, and it didn't seem like it had anything
- for this offhand, unless it was the part about "Datapump ARA bias and
- noise predictor settings".
-
- Is there any way to force a retrain after it gets going? Would this
- possibly help at all?
-
- Thanks for any info you can provide.
-
- Larry Wall
- lwall@sems.com
-