TIP: Click on subject to list as thread! ANSI
echo: aust_modem
to: Paul Edwards
from: Russell Brooks
date: 1996-02-04 06:55:24
subject: USR Courier V34 problems

PE> Here are the results of a call made this morning to Dave

 PE> Hatch's courier.  Note that I had my com port set to 38400,

 PE> despite the fact that the last save was at 57600.  Note that

 PE> the "BUSY", "CONNECT" etc all came back fine at 38400.

 PE> BFN.  Paul.



This MAY BE a BUG in the USR, and may irritating through your eyes as a

programmer but I don't think it is related to your getting good connection

speeds to other modems, and after all that is all we are after.





 PE> atdt8734491

 PE> CONNECT 31200/ARQ/V34/LAPM/V42BIS

 PE> **EMSI_REQA77E* Address 3:711/809 Using BinkleyTerm Version 2.59  



 PE> Welcome to Ministry Support Group BBS - FidoNet 3:711/809.

 PE> **EMSI_REQA77ESorry - Processing mail only.  Please call back later.

 PE> OK

 PE> aty11    Paul        Russell  

 PE> Freq     Level        Level   

 PE>  150     27        26                 

 PE>  300     18        17

 PE>  450     17        16

 PE>  600     17        15

 PE>  750     17        15

 PE>  900     17        16

 PE> 1050     18        16

 PE> 1200     18        16

 PE> 1350     18        16

 PE> 1500     19        17

 PE> 1650     19        17

 PE> 1800     20        18

 PE> 1950     20        18

 PE> 2100     21        18

 PE> 2250     21        19

 PE> 2400     22        19

 PE> 2550     22        20

 PE> 2700     23        20

 PE> 2850     23        20

 PE> 3000     23        21

 PE> 3150     24        21

 PE> 3300     24        22

 PE> 3450     27        24

 PE> 3600     33        30

 PE> 3750     44        44



 PE> ato1

 PE> CONNECT 31200/ARQ/V34/LAPM/V42BIS



 PE> NO CARRIER

 PE> ati11

 PE> USRobotics Courier HST Dual Standard V.34+ Fax Link Diagnostics...



 PE> Modulation               V.34+

 PE> Carrier Freq (Hz)        1829/1829

 PE> Symbol Rate              3200/3200

 PE> Trellis Code             64S-4D/64S-4D

 PE> Nonlinear Encoding       ON/ON

 PE> Precoding                ON/ON

 PE> Shaping                  OFF/OFF

 PE> Preemphasis (-dB)        4/6

 PE> Recv/Xmit Level (-dB)    21/15

 PE> Roundtrip Delay (msec)   4



 PE> OK

 PE> ati6

 PE> USRobotics Courier HST Dual Standard V.34+ Fax Link Diagnostics...



 PE> Chars sent                    3      Chars Received              207

 PE> Chars lost                    0

 PE> Octets sent                   3      Octets Received             195

 PE> Blocks sent                   3      Blocks Received              18

 PE> Blocks resent                 0



 PE> Retrains Requested            1      Retrains Granted              0

 PE> Line Reversals                0      Blers                         0

 PE> Link Timeouts                 0      Link Naks                     0



 PE> Data Compression       V42BIS 2048/32

 PE> Equalization           Long

 PE> Fallback               Enabled

 PE> Protocol               LAPM SREJ 244/15

 PE> Speed                  28800/26400

 PE> Last Call              00:00:41



 PE> Disconnect Reason is DISC Received

 PE> OK



I would say that you are not doing Too bad for an inner city connect to

another USR if this is still with the 18 July SDL.



Now me to Dave Hatch (from Far North QLD)

(not bad for a first time, once only connect, I suppose)



                   Capture file opened  4/Feb/1996 06:02a

* Address 3:711/809 Using BinkleyTerm Version 2.59

Welcome to Ministry Support Group BBS - FidoNet 3:711/809.

Sorry - Processing mail only.  Please call back later.

OK

aty11

Freq     Level

 150     26

 300     17

 450     16

 600     15

 750     15

 900     16

1050     16

1200     16

1350     16

1500     17

1650     17

1800     18

1950     18

2100     18

2250     19

2400     19

2550     20

2700     20

2850     20

3000     21

3150     21

3300     22

3450     24

3600     30

3750     41



OK

ati6

USRobotics Courier V.Everything Link Diagnostics...



Chars sent                    0      Chars Received                0

Chars lost                    0

Octets sent                   5      Octets Received             192

Blocks sent                   5      Blocks Received              17

Blocks resent                 0



Retrains Requested            0      Retrains Granted              0

Line Reversals                0      Blers                         0

Link Timeouts                 0      Link Naks                     0



Data Compression       V42BIS 2048/32

Equalization           Long

Fallback               Enabled

Protocol               LAPM SREJ 244/15

Speed                  33600/28800

Current Call           00:00:23



Online

OK

ati11

USRobotics Courier V.Everything Link Diagnostics...



Modulation               V.34+

Carrier Freq    ( Hz )   1959/1959

Symbol Rate              3429/3429

Trellis Code             64S-4D/64S-4D

Nonlinear Encoding       ON/ON

Precoding                OFF/ON

Shaping                  ON/ON

Preemphasis     (-dB )   4/4

Recv/Xmit Level (-dBm)   19.5/11.9

SNR             ( dB )   38.8

Near Echo Loss  ( dB )   7.1

Far Echo Loss   ( dB )   26.2

Roundtrip Delay (msec)   42



OK

ato1

CONNECT 33600/ARQ/V34/LAPM/V42BIS



I notice you retrained above as well. I did not.

After you flash with the 5/7/95 SDL.

and set S27=48, then It is out of our control.

(It has to be your lines (either your side of the exchange or tuther side)

lack of bandwith, noise, or fancy tricks like multplexing, you name it.)

  

In almost every area in your stats you are just one step behind me and this

is to be expected in the city traffic with the jumble of ancient wiring

between exchanges and the interference that goes with it..



(As stated before)

I get similar results (31200) trying to connect to Dave Drummond (about 20km

away) when dialing from home. And only get 26400 to my local favourite 

microcom, Maestro and Netcomm.



No change in anything but the distance (1800km) and temporarily using Optus,

and I am getting solid 33600 to David D and 28800 to all these others.



I would say that Poe has more problems than you at the moment as I can only

connect to him at 26400/28800 from here USR to USR since he moved and the

lines are laying in the gutter for schoolboys to demolish.

And he IS using the 0705/0705 SDL



Russell





--- Terminate 3.00/Pro


* Origin: Electron Migration (3:640/305.55)
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