Solved

About ATA signal specs.

Posted on 1998-06-24
6
244 Views
Last Modified: 2013-12-27

Can anybody tell me the specifications of the ATA signal , the duration of the signal , the frequency  components of the signal, and things like that..
0
Comment
Question by:ms99y
  • 3
  • 2
6 Comments
 
LVL 9

Expert Comment

by:rmarotta
ID: 1146959
ATA signal?
If you're talking about the AT command set, then ATA sets the modem in answer mode.
Regards,
Ralph

0
 
LVL 1

Expert Comment

by:clancyo
ID: 1146960
All the basic AT Commands are listed on the following page
http://www.datacomm.unt.edu/copeland/modem/atcomm.htm
0
 

Author Comment

by:ms99y
ID: 1146961
Thanx for your answers, By saying ATA signal, I mean that, when you call a modem by dialing the number, it answers by sending a signal. This is ATA signal. All I want to know is that the spacification of this signal. The frequency of this signal in Hertz. (for instance 2100 Hz.), and the duration of that signal.  So I want to write a code to identify the signal, to do that I need these specifications (Frequency and duration).
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 
LVL 9

Expert Comment

by:rmarotta
ID: 1146962
ms99y,
Are you speaking of the mark and space frequencies for frequency shift keying? (FSK)
If so, perhaps this is what you want:

FSK frequencies:

2400 baud Space = 2450 Hz, Mark = 4450 Hz

1200 baud Space = 1300 Hz, Mark = 2100 Hz (Bell 202R compatible)

300 baud Space = 1070 Hz, Mark = 1270 Hz (Bell 102 compatible)

Please re-open the question if the current proposed answer has not provided a solution for you.
Then I'll submit this one if it is what you want.
Regards,
Ralph

0
 

Author Comment

by:ms99y
ID: 1146963
rmarotta, I am re-openning  the question. You gave the kind of information that I want to know.  Thanx
0
 
LVL 9

Accepted Solution

by:
rmarotta earned 20 total points
ID: 1146964
Glad to help.
I submit this answer, (referring to my prior post) for you to grade.
Regards,
Ralph

0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Broadband over Power Lines Broadband over Power Lines is the technology of transmitting computer data through power lines. This method of connectivity allows the user to have access to the internet without having to rely on additional cables, suc…
#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now