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echo: aust_modem
to: Randall Lane
from: Alex Mcconnell
date: 1997-01-18 22:45:00
subject: modem speeds

Hi Randall,
 
 AM> Well, whether you believe it or not doesn't worry me, I
 AM> trust my eyes and I trust my watch. Perhaps the compression

 RL> I'd suggest glasses and a new timepiece!
 
20/20 vision :)
New battery in the watch........

 AM> routine got confused, and the flow control was going psycho. It
 AM> was going about 3500cps most of the time, then it would belt out
 AM> about 20K really fast in short bursts every 30 seconds.
 AM>> also timed it using my watch, at 3300cps it'll do 1000000
 AM>> bytes in 4:58, it was below 4 minutes when it reached 1,000,000
 AM>> bytes, and I trust my watch. Telix also reported the same thing.
 AM>> The file was 1.6MB.
 
 RL>> It's impossible, Alex. It's that simple.
 
 AM> A 33.6K modem can pump 4000 cps, and 56.6K modems work on
 RL> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 RL> Under sterile conditions that is possibly achievable.
 RL> (Bill..Russell??) Still a long way short of 4290 tho'.
 RL> BTW what's 56.6K modems have to do with this??
 
And 33.6 modems use the 28.8 chipset.......
56.6K modems could probably go 6K/sec but that's internet stuff and it's only
downstream so it's not really a valid point unfortunately.

 AM> standard lines (I think), it's the terminal that slows the
 AM> transfer down. Perhaps the terminal I go through is one of the

 RL> There is a theoretical maximum that is achievable at this speed. Your
 RL> 4290cps is way beyond this and is not possible.
 
Like I said, perhaps the compression got good throughput. I'll log in next
time and get all the other family members to read it too, that'll check my eye
sight.

 AM> new ones, my lines could be very good. Besides, I think that for

 RL> They'd have to be better than "very good", they'd have to be cable.
 RL> :=) 

Well, we've got the Optus cables...... but I'm not hooked up to Optus. Their
TV stuff isn't worth it :(

 AM> the 33.6K modems they just use the same chipset as in the 28.8
 AM> and modify the BIOS.

 RL> So what's the point here??
 
 AM>>> end it reported 4290 cps average. What do you think?

 RL> Still incorrect.
 
 RL>> What for? The 4290cps is pure nonsense.
 
 AM> Got 3500 cps on my last upload. These files are definitely

 RL> I won't argue that!
 
Why? 3429 cps is the maximum a 28800 connection can do, but obviously
that's just been proved a crock.

Neither will I but it started at 4000 and slowed to 3500.
 
 AM> So how fast does your modem go? Whether it's 8 BIT or not,
 AM> it'll still go the maximum symbol rate allowed on a standard
 AM> phone line, and it has done so.

 RL> Nowhere near 4290cps.

Screw the 4290 cps bull, how fast does it go normally?
I really don't care whether it goes 4290cps or 3200cps, as long as I get what
I'm downloading. I was just shocked. My point is that if a 33.6K modem can do
4000 cps with a 28.8K chipset, and compression is enabled or whatever.

Regards,
Alex
... Backup not found: (A)bort (R)etry (S)lap nearest innocent bystander.
___ Blue Wave/DOS v2.30 [NR]

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