Modemsite's Forum56 - The Modem Board
Main | profile | register | search | help | Ad-free Login
Forums | USR | aty11 testing    Watch  
Author Topic
rich1220
Tl Posts:
4

USA
Posted - 11/19/2002 12:17:41 PM  Show Profile  Email Poster  Edit Message
When running this test with hyperterminal or procom plus, what should the levels be min and max?
charles
Tl Posts:
5879

USA
Posted - 11/20/2002 1:11:43 AM  Show Profile  Email Poster  Edit Message
Post your ATy11 results. What is the make and model number of the modem.You can try ATI11 also

First of all, if the value of 3750 is above 50, you may have poor local phone lines and may want to check into noise. Now, take the level of 3300 and subtract it from the level of 3750. If the value is 25 or higher, you most likely have too many A/D, D/A conversions which indicates that you can not achieve 56k speeds. If the value is betwen 20 and 25, you MAY have too many A/D, D/A conversions and you may not be able to achieve 56k speeds.
Edited by - charles on 11/20/02 1:17:34 AM

rich1220
Tl Posts:
4

USA
Posted - 11/20/2002 7:24:13 AM  Show Profile  Email Poster  Edit Message
When you do the aty11 test it registers I think 22
tones and gives the level of each tone in db's I guess
what my question is the levels should be what, lowest
and highest. Most of the time on 500hz to 3000 hz I see
an average of about -16 to -17 the higher freq"s will be more loss. But from some locations they will be -25 and above. What are the limits before it could cause problems
in your connection?

Thanks

rich1220
Tl Posts:
4

USA
Posted - 11/20/2002 7:24:57 AM  Show Profile  Email Poster  Edit Message
When you do the aty11 test it registers I think 22
tones and gives the level of each tone in db's I guess
what my question is the levels should be what, lowest
and highest. Most of the time on 500hz to 3000 hz I see
an average of about -16 to -17 the higher freq"s will be more loss. But from some locations they will be -25 and above. What are the limits before it could cause problems
in your connection?

Thanks

charles
Tl Posts:
5879

USA
Posted - 11/20/2002 10:14:59 AM  Show Profile  Email Poster  Edit Message
This should give you an idea what is going on.
http://gate.cruzio.com/~jeffl/aty11/aty11.htm
v.Richard
Tl Posts:
6222

USA
Posted - 11/21/2002 9:28:42 AM  Show Profile  Email Poster  Edit Message  v.Richards Homepage
Thanks Charles for that link - I'm adding it to the Modemsite page on aty11 ( www.modemsite.com/56k/x2-adconversion.asp )...!

Aloha! Richard.

Click Here To Close Thread, Administrators & Moderators Only.

Show All Forums |