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A repeater receives signals and retransmits them. Many voice repeaters use different input and output frequencies; other stations are heard on the repeater output.

A duplex repeater uses separate input and output frequencies.

Combine radio ID, talkgroup, channel and zone correctly for a repeater or simplex hotspot.

A colour code is a DMR identifier from 0 to 15. For normal operation, the channel must match the repeater or hotspot’s colour code.

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.

Understand DV, repeaters, routing and reflectors, and check settings as a complete path.

Understand codec, RF link, repeater and hotspot before programming a radio.

Check channel, RF link and network separately — through a repeater or your own Pi-Star hotspot.

From your callsign through FROM and TO to a local repeater conversation, then a gateway connection.

DMR TDMA divides a 12.5 kHz radio channel into two time slots. A suitably operated repeater can provide two separate call paths.

The manual describes roaming between configured repeaters, voice recording, text messages, GPS positioning and APRS.

Two compatible radios can communicate directly; a repeater extends local access.