KVH Industries FB250 Manual Do Utilizador

Chapter 4:  Using the web interface

124

Managing LAN network users

The APN is used by the network user to establish the connection to the 
required destination network. This means that the terminal must know the 
APN in order to be able to connect to the destination network. 
APNs are provided from the Airtime Provider. They may also be defined on the 
SIM card.

The Header of a data packet contains control information belonging to that 
packet. The information in the Header can take up a considerable amount of 
bandwidth. In order to save bandwidth, you can use Header Compression, 
meaning you compress the header information, leaving some of the 
information out.

You can select whether or not to use Header Compression for your data 
transmission.

•

Header Compression enabled: Recommended for low-noise applications.
If you select Header Compression enabled, you will be using less 
bandwidth on header information, leaving more bandwidth for the actual 
payload. 
However, if the environment is noisy, the system will have to retransmit 
information, and you may end up using more bandwidth than without 
Header Compression.

•

Header Compression disabled: Recommended in noisy environments.
If Header Compression is disabled, the system will be less sensitive to 
noise.

BGAN-X_UM.book  Page 124  Wednesday, April 30, 2008  12:48 PM