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Welcome to the D-STAR* radio forum for general comments, questions and suggestions.

The state of play - 11/11/2007

Herne Bay - 11 Nov 2007 - 17:00

On www.dstarusers.org , 342 users in the last 24 hours.

Actually, it's 300 users because the 24 hours shown is actually 30 hours, a fact which I have reported to the owner, and probably stems from time zone issues. It probably does show 24 hours in his time zone.

British, American, Canadian, French, Italian, German, Australian and Swiss stations now on.

And a sniff of Portuguese, Austrian and Brazilian repeaters having been registered and presumably on-line soon.

It's getting bigger. This may mean that K5TIT, our chosen gateway network, achieves a critical mass and becomes the only network to belong to outside of Japan. Or do you know of others?

I don't envy the K5TIT 'team' this heady accolade because synchronising all the gateways was a nightmare from the outset but with so many now on the network, it could become impossible.

Let me explain. Each gateway synchronises its database with all other gateways, I think many times a day. Consequently, any incorrect data is replicated to all other gateways. Deleting it has zero net effect. The only way is to close down all gateways (stop their D-Star services) simultaneously, edit the database at the master "Trust Server", K5TIT, then bring all the others on line because they re-load from the master at startup. If just one fails to execute this procedure, the bad data returns to all gateways. I think this process is attempted most weekends but often fails.

More than this, if any server is not on-line, every server will 'wait' for a timeout period for that (or those) server(s) to appear during each sync cycle.

Various American Linux gurus have invented processes which make this global cleanup possible but it can't yet be made foolproof without changes to the core modules. It is hoped that a future version of the gateway software will address these issues and also smooth some of the management and installation processes.

This is an exciting time. When the various licensing and/or band-planning bodies around the planet make some choices which promote and possibly harmonise digital radio, D-Star could really fly. We're supposed to be testing the water and advancing the technology - well here it is, advancing.

Enjoy.

Jerry,
G4JMP (GB7IC, GB7DS)


Posted By: Jerry G4JMP

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Comments

Add Austria, in the form of OE6XAD to the active repeater list. Welcome, people.

Portugal and Brazil, still in the wings.

Jerry
Posted By:
Jerry G4JMP
Date:
12 November 2007 17:19
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