Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

0

20

40

60

80

100

0102030405060708090100

Rea

dab

ility

Signal Strength %

Digital vs Analog

Digital

Analog

Threshold

Georgia D-STAR

Narrowband Digital

Georgia D-STAR

D-STAR DMR/MotoTRBO System Fusion

Number of users >41,000 10,282 >1,000

Repeaters 3,190 1,235 >1,000 (most operating in mixed or

FM modes)

Bandwidth 6.25 KHz 7.6 KHz 7.6-9 KHz

Channel spacing 10, 12.5 KHz pairs 12.5 KHz pairs 20, 25 KHz pairs

Repeater Linking Open via Internet (DPLUS or

ircDDB)

Proprietary (Motorola IPSC) or

Hytera, via Internet

Not yet available

Wires-X nodes connect to radio

Linking / routing control Determined by user, sent from

radio

Defined by admin, sent from

radio

Not yet available for repeater

(Repeater firmware upgrade

required)

Data 1200, 3600 bps

128 kbps (1.2 GHz)

SMS only implemented in

Amateur Radio version

4800, 9600 bps

Radio Programming Front panel, software Licensed software Front panel, software

Other user devices Multiple vendors (Dongle,

DVAP, GMSK modems, hotspot

adapters)

Multiple radio vendors,

proprietary networking

Not yet

Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

0

500

1000

1500

2000

2500

3000

2007 2008 2009 2010 2011 2012 2013 2014

Repeaters

0

200

400

600

800

1000

1200

1400

20072008200920102011201220132014

Gateways

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

2008200920102011201220132014

Users

Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

Georgia D-STAR

Linux Gateway PCRunning G2 Gateway software

Runs third-party apps, Dongle, DVAP

Georgia D-STAR

one and only one

Georgia D-STAR

Step 1 callsign

16

Georgia D-STAR

Step 2

Georgia D-STAR

Step 3

Note: You only need one terminal, a “space” for use. Adding more terminals can add confusion

Georgia D-STAR