Welcome to the wonderful world of D-STAR Radio.

  • What is D-STAR? – D-STAR is a new Amateur 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 D-STAR system provides a new capability and functionality to the ham radio world and increases the efficiency of emergency communications.
  • What can the D-STAR system do? – 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.
  • Your Voice And Data Can Reach Farther Than Ever Before – Multiple repeater links by radio and the Internet provide long distance communication to virtually anywhere.
  • Internet Applications Available – The D-STAR system uses the TCP/IP protocol, so when connected with a PC, web, e-mail and other Internet applications are available.
  • Wireless Internet Access – No matter where you travel within the D-STAR network, you can access the web, e-mail, text messages and multimedia messages.
  • Independent Network – In DD mode, the ID-1 (23cms radio) 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.
  • 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 Repeater System – The D-STAR repeater system is composed of a repeater controller, a mix and match of either 1.2GHz digital data repeater, 1.2GHz digital voice repeater, 70cm digital voice repeater, 2 meter digital voice repeater (microwave relays provide independent infrastructure between repeaters) and the Internet gateway PC. Since the signal is digital, 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 an analogue repeater. D-STAR repeaters can be set up as “stand-alone” or linked to relay communication in 1.2GHz, 70cm and 2 meter bands.
  • Microwave Link – When D-STAR repeaters are connected via microwave infrastructure, the D-STAR system transfers 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. Your message will get through to anywhere in the D-STAR system using the correct routing.

On D-star VHF/UHF modules have been assigned Port names.

Port A = 23cms, Port  B = 70cms, Port C =2m

Node information for GB7YD ports B and C

= 2 spaces when programming your radio


Channel :DVN
Repeater Output : 439.5125 MHz
Repeater Input : 430.5125 MHz
Locator : IO93HO
Coverage map : See here


Channel :DVN
Repeater Output : 145.6750 MHz
Repeater Input : 145.0750 MHz
Locator : IO93HO
Coverage map : See here

Setting your radios RPT2 field  to RPT2: GB7YD♦♦G allows gateway users connected via another node, dvdongle or dvap to hear you.

UK D-Star Simplex frequencies are 144.6125 MHz, 438.6125 MHz and 1298.6125MHz

Other Resources on this web site.

Tweets from SYRG Tweets from SYRG

  • GB3SY has found a new location and with the aid of a donation form SYRG will remain on air for the foresable future… ,
  • Surplus Sale: Denby Dale Pie Hall, 297 Wakefield Rd, Denby Dale, HD8 8RX 20:00 to 21:00 Weds 4th April 2018,