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Digital Modes Overview

About Dstar Digital

What is Dstar

D-STAR is a new ham radio system which offers digital voice and data communication. It connects repeater sites over microwave links and the Internet and forms a wide area ham radio network. The DSTAR system provides a new capability and functionality to the ham radio world and increases the efficiency of emergency communications.

What does D-Star provide?

Your voice and data can reach further than ever

Multiple repeater links by radio and the Internet provide long distance communication to virtually anywhere.

Increase efficiency of emergency communications
Out in the field, fast emergency information is the key.Send pictures and weather charts to or from a remote location with the ID-1. A picture is worth a thousand words, and efficient send/receive opens up your repeater for other emergency communications.

D-STAR system will be upgraded
The D-STAR system will be enhanced and new D-STAR radios will be released, adding features and performance to the D-STAR system.

128kbps digital data and 4.8kbps digital voice communication
The D-STAR system provides not only digital voice (DV mode) communication but also digital data transmission (DD mode). It can exchange various data files such as graphics, images, etc, at 128kbps.

Independent network
In DD mode, ID-1 can transfer data directly with another ID-1 without the use of a repeater. This is useful for establishing a simple network where a D-STAR repeater does not exist or D-STAR services are not required.

A Typical D-Star System

The D-STAR repeater system is typically composed of a repeater controller, 1.2GHz, 70cm and 2mtr digital voice repeater, digital data repeater, 10GHz microwave relay and the Internet gateway PC. For the signal is digital data, no information is lost due to conversion and multiple repeater relays are possible in this system, the D-STAR system repeater can perform 3 relay functions.


Single repeater
The D-STAR repeater operates similar to existing analog repeater. That is a simple relay of transmit and receive communication in 1.2GHz band.

Microwave link
When D-STAR repeaters are connected via 10GHz microwave, the D-STAR system transfers a received data to another repeater site. You can also make a CQ call to a specified repeater area.

Internet gateway relay
When D-STAR repeaters are connected with the Internet gateway, the D-STAR system relays the received data over the Internet. Microwave links and Internet gateways can be combined even during one contact. So your message will get through virtually to anywhere in the D-STAR system.


Page Last Updated: Monday 4 June 2018 at 14:16 hours by Webmaster

 

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