On Feb 27, 1996 at 07:20, Bill Grimsley of 3:640/305.9 wrote:

 BG> I strongly suspect so, given the less-than-perfect lines somewhere
 BG> between here and Wollstonecraft.

No matter what I change, I never get more than 21.6Kbps with Dave Hatch;  I
also get lower-than-expected connections with 3M.  Maybe those guys are all
in an area that to each other is fine, but to them from somewhere else is
pot luck (with DD being lucky, you and me varying in luck)?

 BG> The higher the frequency, the worse the line becomes (see the line probe
 BG> stats I've posted lately?).

Yes .. the "%L" command has a coded minimum of -11dBm, but
apparently an undocumented command ("#T") will let you go higher,
so maybe Paul can change it in his M34F to see if it makes any difference. 
I think I tried -9dBm to Dave Hatch, and it didn't work - but it might help
Paul.

 BG> The USR manual is a little obscure, and only lists the various carrier
 BG> freqs for a given protocol...

Gimme!  :-)

 BG> Arthur Marsh (Aust_Modems) will likely know where to obtain a free copy.

Someone in aus.comms mentioned they had a copy in PostScript format so I've
emailed them - no reply yet.  I might send a note to Arthur, too.

 BG> I was half-serious, as the problem does appear to be peculiar to his end
 BG> of the link (other STD V.34 calls work perfectly from here, even to
 BG> NetComms). :)

Entirely possible - wasn't Paul complaining about poor TV reception at one
stage?  The 'phone lines may be questionable too, and as you say the USR
may be better able to handle that.  NetComm *may* still be able to do
*something* with their ROMs, but of course Rockwell Semiconductor have
control of the situation here.

 BG> It's starting to look like Rockwells just can't handle poor lines as well

No idea if that's just with the default settings, or if USR is able to
ignore the defaults when appropriate, or if the Rockwells are just plain
unable to do it at all.  Anything's possible, of course.

If nothing else, this proves that the M34F isn't as stuffed as first thought.

 BG> Of course, Rod would simply call that zealotry...  :)

Who?

    - dave
    d.begley{at}ieee.org

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