Application Notes

Measurements of Dual-tone Multifrequency Dialling Signals with the Audio Analyzers R&S®UPL and R&S®UPD

In modern telephoning, dual-tone dialling is used more and more often. Every symbol to be transmitted is coded by two frequencies which are sent at the same time. To ensure a trouble-free call setup, transmission has to be done within defined tolerances. For measuring these kind of dialling signals, the measurement equipment has to fulfill high requirements. This application note describes how the measurements can be carried out by using the Audio Analyzers UPL or UPD. It also presents a measuring program for this application.

Name
Type
Version
Date
Size
Measurements of Dual-tone Multifrequency Dialling Signals with the Audio Analyzers R&S®UPL and R&S®UPD | 1GA23
Type
Application Note
Version
1
Date
04-Jun-1998
Size
32 kB
1GA23_1L.exe

Installation File for DOS

Type
Application Note File
Version
1
Date
04-Jun-1998
Size
19 kB
Name
Type
Version
Date
Size
Measurements of Dual-tone Multifrequency Dialling Signals with the Audio Analyzers R&S®UPL and R&S®UPD | 1GA23
Type
Application Note
Version
1
Date
04-Jun-1998
Size
33 kB
1GA23_1D.exe

Installation File for DOS

Type
Application Note File
Version
Date
04-Jun-1998
Size
19 kB
1GA23_1L.exe

Installation File for DOS

Type
Application Note File
Version
1
Date
04-Jun-1998
Size
19 kB
1GA23_1D.exe

Installation File for DOS

Type
Application Note File
Version
Date
04-Jun-1998
Size
19 kB