Rod, at 13:58 on Apr 29 1996, you wrote to Bill Grimsley...

BG> These stats were generated with Russell's Courier on MY own line,
BG> with a connect to David's Courier.  The Rx and Tx levels, and the
BG> S/N ratio, are all quite acceptable, and indeed this is the very
BG> call upon which we transferred a 1.4Mb zip at just a hair over
BG> 4000cps overall (and with 16 Blers too)...

RS> Yeah, its definitely the rather pronounced slope its got that is
RS> the problem when you call someone like Paul with an average line.

Yeah, the line just runs out of bandwidth at the top end.  With Dave's
lines, it's enough to allow consistent connects of 33600 or 31200, but to
Paul is a different matter, with many calls barely making it at 26400.  I
also note that Dave has polled Paul and seen the dreaded CONNECT 28800/NONE
which I saw here quite frequently until upgrading the EPROM.  No idea why
either.

RS> The S/N is fine, 

Yeah, I'm more than happy with a S/N ratio of 38dB.

RS> the S/N on the call Russ did from FNQ was due to
RS> the S/N on that line, which was bad enough to be audible.

Yep, an amazing and presumably unusual set of conditions too.

RS> Your 7db on your local loop isnt the cause of your problems to Paul.

I'm actually starting to think that Paul's NetComm isn't quite up to
scratch either, especially now that Dave is seeing the 28800/NONE string
himself.  Remember that his Courier would connect perfectly to mine every
time.

RS> You also now have a problem that this call with a Courier at your
RS> place is completely different to what you get with the Sportster
RS> V34+ WITH that classic shift of the entire curve too. Urk.

Dunno, I'll do some stats later and post them with the others below, just
in case something has changed here over the past month or so.  Damned if I
can see why the Courier should measure any differently from the Sportster
though.

RS> Corse you really should repeat the test today with both a Sportster
RS> V34+ and a Courier on your line, calling Dave, to eliminate the
RS> possibility that Telstra has changed something about your line.

Yep, my thoughts exactly.  I'll do it first thing tomorrow morning.

RS> -------------------
RS> Freq |Sport|Courier
RS> -------------------
RS> 2100     24   20
RS> 2250     24   21
RS> 2400     25   21
RS> 2550     25   22
RS> 2700     26   22
RS> 2850     26   23
RS> 3000     27   23
RS> 3150     27   24
RS> 3300     28   24
RS> 3450     30   26
RS> 3600     33   30
RS> 3750     40   38

That's completely mad.  Only 3-4dB, but it's still there, and shouldn't be.

Regards, Bill

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