D-STAR: callsigns and connection paths

Voice and data in DV mode

D-STARD-STAR×D-STAR is an amateur-radio system for digital voice and data. DV operation uses callsign fields and a selected destination; a gateway can connect repeaters to the network.Example & full explanation → was developed as a digital amateur-radio system under JARL’s leadership. DV mode carries encoded voice and accompanying data. Callsigns form part of the connection settings and identify participants in the system. A receiver must support the appropriate D-STAR mode; ordinary FM demodulation is insufficient.

Frequency, mode and any repeaterRepeater×A repeater receives signals and retransmits them. Many voice repeaters use different input and output frequencies; other stations are heard on the repeater output.Example & full explanation → offset must be correct first. Additional callsign fields describe the intended route. Hearing a repeater clearly therefore does not establish that your own transmission will travel back through the system with correct routing.

MY, UR, RPT1 and RPT2

MY contains your own callsign. Depending on operation, UR identifies a destination or a control function. RPT1 identifies the repeater access and RPT2 the onward gateway path when required. Module letters, positions and spaces can matter; use the documentation for your radio and the actual repeater.

A reflector connects multiple participants or access points in a shared conversation space. Linking to a reflector and direct callsign routing are different operations. Avoid copying another memory entry blindly: a plausible display name does not prove that every stored field matches your intended path.

A practical approach

Create a clearly named local test channel first and verify the RF link. Then deliberately add the required network path. Save working settings before trying further variations. DR interfaces simplify selection but do not replace understanding of access and destination. Compare each failure with the last working step.

Equipment from my station

Find the corresponding equipment information here. The learning examples above are general explanations, not measurements of these devices.