Sagem SAGEM-LINK F

To Next Page

To Previous Page

SAGEM-LINK F 288055571-04

Installation and Operation Manual

Page 137/142

Issue 04 : July 2005

Reproduction and communication prohibited without the written permission of Sagem Communication

To change T/R spacing in this frequency plan, it is necessary to apply to following procedure. The T/R

spacing change is made separately on each terminal, with the Pilot software in super user mode. Two

cases are considered : 119 MHz Æ 126 MHz and 126 MHz Æ 119 MHz.

To make this change, it is necessary to have the IDU connected to its ODU.

1- Procedure for changing T/R spacing from 119 MHz to 126 MHz

• Connect the PC to the local IDU and run the Pilot software in super user mode

• Mute the local terminal

• Decrease capacity or change modulation (QPSK : max = 8x2 Mbit/s)

• If necessary change Transmit frequency to the wanted frequency

• Go to the menu Parameters/Read ODU Parameters Local

• Change Tx-Rx Spacing to 126 MHz and validate with the OK button

• Unmute the terminal

• Switch off then switch on the terminal

• Connect the PC to the remote IDU and run the Pilot software in super user mode

• Use the same procedure as per the local terminal

• Once all the changes have been made, the link should be established with the new T/R spacing

2- Procedure for changing T/R spacing from 126 MHz to 119 MHz