The Spaghetti Bowl
(D-STAR Political Football)
by
Ottawa D-STAR Symposium
Rick Bandla (VE3CVG)
November 27, 2010
Gateway Designs
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Icom – USTrust – The Original
KI4KLF/VA3UW – NATrust ( aka FreeStar)
G4ULF – NI Star
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ircDDB Gateway – Trustless
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Others?
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2
Repeater Controller Designs
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Icom RP2C controller, software by Icom
Satoshi Yasuda (7M3TJZ) board – the first nonIcom, firmware by Satoshi, app by Mark McGregor
KB9KHM
Mark Phillips (G7LTT/NI2O) board, does not supply
firmware, app by KB9KHM
Dutch board and firmware by Fred van Kempen
PA4YBR, app by KB9KHM
Scott (KI4KLF)/Ramesh (VA3UW) linux and
dextra-based software-controller (and GMSK
interface) + simple PTT circuit
3
Central Databases 1


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Needed primarily to enable Call Sign Routing to a specific station
US Trust is the first
– 1 database for the world
– Sometimes slow to update
– No cleanup so becomes corrupted
– Poorly documented, closed, closely-guarded secrets
– Fragile
– Also has dplus server database to keep track of
Multi Trust was the second
– distributed data amongst several strategic servers
– Much faster than US Trust
– European servers removed when ircDDB came along
– North American Trust remains as a scaled down version
– dextra based
– Now uses ircDDB
4
Central Databases 2


ircDDB
– central redundant database
– data is rcvd by gateway using IRCclient in Java using RFC2812
– data is sent by gateway using dsm
– no interference w USTrust database or dplus database
– open source
– fast
Dutch
– dpns or d-Plus name server by Fred van Kempen PA4YBR
– Alternative to the dplus database (which only shows Icom systems)
– permits hot spots, dvdongles, dvaps to “see” registered hot spots as well
as Icom and non-Icom gateways
– Does not interfere with other databases
5
Repeater Radio Designs
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Icom RP2000 (144MHz)
Icom RP4000 (440MHz)
Icom RP2V (1.3GHz Voice)
Icom RP2D (1.3GHz Data)
Friendcom Digital Radios
Modified FM Radios
6
Network Designs

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Icom US Trust System
– Single trust (central database)
– Can use ircDDB
– By JRL and Icom HQ
– Refined by several US amateurs
NA Trust System
– Also known as FreeStar aka multi-trust
– Multi-trust means multiple redundant DBs
– uses ircDDB
Trustless System
– Uses ircDDB gateway
Others
– private
7
The Problem

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We would like it all to work together nicely
We would like any mess to be transparent to
the user
We want it to be easy to use …. well, easier
than it is now
We want it to be reliable
8
Our Mission Today
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To meet each other
To talk about the various combinations and
their respective problems
To help us all use the networks effectively
To enjoy our hobby
9
The End
10