D-STAR Digital –Smart Technologies for Amateur Radio (40 hours of training presented in 40 minutes)

D-STARDigital –Smart Technologies for Amateur Radio(40 hours of training presented in 40 minutes)

D-STAR

•What is it ?•Who might like it ?•How to get started ?•What do all the terms mean ?•Where can I use it ?

D-Star – What is it ?

D-STAR (Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification developed as the result of research by the Japan Amateur Radio League to investigate digital technologies for amateur radio.

D-Star – What is it ?

•Method of moving voice packets encoded by the AMBE vocoder, locally, regionally, or globally.

D-STAR Network

D-STAR Network

Who might like it ?

•Do you like VHF & UHF comm ?•Do you like DX ?•Do you like EchoLink ?•Do you like Packet ?•Do you like Computers ?•Do you like APRS ?•Do you like writing software ?

•No D-Star Radio Required▫DV Dongle

•D-Star Radio Required▫DVAP (DV Access Point)▫D-Star Hot Spot▫D-Star Repeater

How do I get started ?

How do I get started ?

•Step 1 – Hardware▫Choose your access method

•Step 2 – Registration*▫Register your call sign▫WARNING !▫Ask for recommendations on where to

register•Setp 3 – Talk

Registration Requirements

D-STAR Network

D-STAR Network

NOTREQUIRED

REQUIRED

Definitions

•AMBE – Advanced Multi-Band Excitation•DV – Digital Voice•Hot Spot•R2D2•D-RATS•Gateway•Reflector

Look inside the radio

AMBE

2.4kbpsdigitized voice +FEC Controller

4.8kbps(3.6 voice +1.2 data)Modem

GMSK Signal

Analog Speech

D-STAR Network

D-STAR Network

Look at DV Dongle

AMBE

Computer

Analog Speech

D-STAR Network

D-STAR Network

IP Encapsulation

NOTE: No Radio Present !

Look at DVAP

D-STAR Network

D-STAR Network

Look at DVAP

D-STAR Network

D-STAR Network

Typical range:Several hundred feet

Look at HotSpot (GMSK Modem)

D-STAR Network

D-STAR Network

SimplexRange: Varies with antenna height and output power

Look at HotSpot (GMSK Modem)

D-STAR Network

D-STAR Network

RepeaterRange – Same limitations as analog repeater

Existing Oklahoma Network

145.550

145.570

The Missing Link - Reflectors• Repeaters for Repeaters• Chat-Room• http://nefl-dstar.com/blog/2011/01/13/2559/ • http://hotera.org/training%20aids/

TA001.htm#What

•REF030C – SE US – HF net•REF052B – Oklahoma network

Resources• http://dstarinfo.com• http://dstarusers.org• http://www.moencomm.com

▫http://www.k6jm.com/hs-setup.htm• http://groups.yahoo.com

▫dstar_digital▫gmsk_dv_node▫DStar-Gateway

• http://dutch-star.eu• http://www.k5tit.org• http://ok-dstar.blogspot.com

Special Thanks to:

•Mark Holmes – KJ4VO•Jim Moen – K6JM•Fred Van Kempen – PA4YBR•Jim McClellan – N5MIJ

•Guy, Larry, & Ray