🚀 go-pugleaf

In article <1996111821385469838@achapman.demon.co.uk>, Adrian Chapman
<a.chapman@eleceng.ucl.ac.uk> writes
>After some initial difficulties I have been successfully using my
>Motorola 3400Pro on a Mac Centris 660AV for several months now and an
>old problem has suddenly started occuring.  I am using the 0845 0798666
>number and when I get a connection it is always at 28800.
>
>However, just recently I have been getting a connection only to have the
>carrier drop after a few seconds.  At other times the Demon modem
>responds and negotiates but no carrier is detected.
>
>This is very annoying and getting expensive.  I am convinced the problem
>is not at this end or with the BT line as after two or 3 abortive
>connection attempts I get a succeful connection which will stay up for a
>considerable time.
>
>I have tried a variety of initialisation strings all to no avail.  the
>present string is
>
>AT&FE0&G2&D2\V3\Q2\K0S7=120S0=0
>
>Can anyone, especially Demon, throw any light on this.
>
Check out the Tx level of your modem which has been known to change on
power up from -9dBm to some other value.
*TD9 should appear in your factory profile display.
To find out if it has changed you need to load the factory defaults into
User profile and then display the profile.
AT&F&W&V   will write then show you what is in the factory settings.
if the tx level is wrong then you will get unreliable connections
It is possible to put the tx level back to the factory setting by
sending ATS39.0=1*TD9&F
You could include that in your inialization string.
Many users of this modem seem to have the same problem and on checking
the tx level it has been set to the wrong level.( Strange ! it is not
supposed to move. )If you can,t rely on Factory defaults what can you
rely on ?
I  have replied to several Threads about this problem in the past both
here and in the Enterprise Newsgroups both eventually they fade out.
Hope this works.
-- 
terry