UHP NETWORKS SCPC - WEB-Interface; Figure 2 Example SCPC Channel Structure

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UHP SCPC MODEM

USER MANUAL, v3.2

Figure 2 Example SCPC channel structure

A SCPC carrier of 2 MHz bandwidth (symbol rate 1667 KSps with roll-off=1.2) is used to transmit data from the

Station-1 to the Station-2, while another SCPC carrier of 1 MHz bandwidth (symbol rate 834 KSps with roll-off =

1.2) is used to transmit data from the Station-2 to Stations-1.

Bit rate and symbol rate are converted using the following formula:

SR =

MOD ∗ FEC

where,

SR – symbol rate;

BR – bit rate;

MOD – modulation type (1 – BPSK, 2 – QPSK, 3 – 8PSK, 4 – 16APSK);

FEC – forward error correction rate.

The description below shows the procedure to establish SCPC connection between the Station-1 and Station-2:

 Radio frequency channel configuration;

 Transmission Level Control (TLC) configuration;

 Adaptive Coding and Modulation (ACM) configuration;

 Routing configuration;

 Equipment redundancy mode configuration;

 Pointing the antenna to the satellite;

 Troubleshooting during UHP-routers operation;

 SW and router settings storage/updating.

1.3 WEB-Interface

UHP-router WEB-interface (see Figure 3) is split into three areas:

1. Menu of commands;

2. Status bar;

SCPC

1667 kSps

SCPC

834 kSps

953500

952500

950500

951000

951500

Terminal #1

192.168.0.1

Terminal #2

192.168.1.1

192.168.1.0/24

192.168.0.0/24

Console

192.168.0.3

MHz

Gateway

192.168.0.2

Internet

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UHP NETWORKS SCPC - WEB-Interface; Figure 2 Example SCPC Channel Structure

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