header bar

Space Network Systems Online

Help System

Table of Contents
Help Topics Description
General Query System how to navigate through the SNS database using predefined queries.
Advance Publication Query System how to retrieve advance publication data from the database.
Special Query System how to use complex queries to retrieve data specifying parameters as frequency range, longitude, etc...
Query Search which query to use to retrieve data using predefined queries? How to define your own query?
Reference Information System how to retrieve reference data from the database using predefined queries.
FAQ what are the most frequent questions users ask when using the system.
Demo pages give you an overview of SNS Online. Try the demo pages to get familiar with the system.
Subscription How to subscribe to the service.


ITU logo International Telecommunication Union, 1996-