Tuesday, March 12, 2013

What no D-Star blogs?

What you haven’t seen me blog about in a while is D-Star.

I have kind of lost interest.

What got me interested in D-Star was the opens source software projects and node adapters, allowing you to roll your own.

I had always hoped there would be a SIP translation that would take off.  Allowing D-Star to inter-operate with ordinary VOIP.  A powerful idea for Emergency Communications.

One key component to this would be AMBE transcoding at the repeater using a DV dongle or some sort of public AMBE proxy.  This would also allow people to try D-Star using just a computer and microphone or smart phone.

This never really happened.  The Trust Server guys kinda put the kibash on that.

I had hope that with IRCDDB that the trust server concept would go away (fully) and the network would become more decentralized from a select few controlling the whole parade.

So I paid attention to Codec2.  It was being designed as a drop in replacement for AMBE.  (The existing repeater hardware would be able to pass it.)

What I envision(ed) is plugging a  micro computer like the Raspberry Pi into the back of  the Yeasu in your car.  A separate speaker mic hooked to the Pi, which encodes  your voice to Codec2, and wraps that in the sound card created GMSK stream that drives the packet/discriminator connection of  your existing mobile:

Kristoff ON1ARF, demos the concept:



However at this point, the Codec2 part still isn’t quite a drop in replacement from my understanding.  So it’s incompatible with existing repeater infrastructure.

So combine that with the Trust Server regime, and crap repeater hardware, 1980’s retarded data throughput, and D-Star toys attitude by other controlling interests, and I have hit the end of the road with it.

However it has been interesting to learn about and monkey with.

2 comments:

WS4E said...

>I have kind of lost interest.

I think D-Star is well past the top of its hyper curve at this point and its on its downward slide.

The first thing to come along that is can replace it in an open fashion and is available from multiple vendors will totally erase D-Star from the market.

David Shields said...
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