Satellite modem

Description

The satellite modem adopts a hybrid communication system combining TDM/TDMA (network management) and FDMA (service), featuring dual transmission and dual reception. It is entirely designed and developed domestically in China, with a pure Chinese operation interface. All core technologies are independently realized and can be used for service communication under the network management of remote stations.

This device is suitable for high-speed and large-capacity satellite communication applications, especially in communication environments with poor channel conditions. It can be installed in a mobile manner for fixed stations, vehicles, aircraft, ships, etc. The product is widely used in various industries such as firefighting, public security, emergency response, power, water conservancy, petroleum, meteorology, civil air defense, aerospace, military, and telecom operators.

1.1 Technical Advantages:

1. Standardization: The modem comes in a 1U chassis with a weight controlled within 3.8 kg. It is packaged and protected in a custom cardboard box and is equipped with a standard 220V power supply cord.
2. Multiple Communication Interfaces: The modem integrates RS232 serial ports, RS485 serial ports, a V.35 interface, and network ports for connecting service access devices. It also incorporates two N-type connectors for connecting RF devices such as up/down converters.
3. Ease of Use: When using the modem, users only need to connect it to RF devices and align the antenna with the satellite to achieve automatic network entry and synchronization. Complex parameters can be sent down from the master station and automatically configured by the system. After connecting to local service devices, users can establish a communication link by calling the IP address of the peer service device.

1.2 Usage Scenarios

In situations where the ground network is damaged or non-existent (such as during various natural or man-made disasters), satellite communication can provide emergency communication on-site, ensuring on-site command and dispatch, maximizing communication efficiency, and minimizing the scope and losses of disasters.

The usage scenarios of the modem include:

1. Emergency Communication: When disasters such as earthquakes and forest fires strike suddenly, conventional ground communication means are mostly destroyed. Rescue personnel need to carry communication devices to the scene to promptly feed back the situation to the rear rescue command center and receive commands and intelligence information from the rear.
2. Data Backhaul: When the usage location is not fixed and it is necessary to maintain constant contact with the rear, small teams can use the modem to backhaul information from the source location after obtaining various relevant information such as geological and meteorological data.
3. Link Backup: Satellite communication links can be used as backups in addition to the existing basic communication networks.