On 24 Sep 2010 09:07:52 GMT
Rob wrote:

Yeti wrote:
On 24/09/2010 03:20, Mike G wrote:
For what reasons would someone be "anti D-Star"?


It's a closed codec - you can't look at it, play with it, improve
it or adjust it.

In fact, being patented, it's ILLEGAL to do any of that.

Which means it's not amateur radio.

Ok but if you have bought a commercial transceiver for amateur radio,
can you look at or improve upon any part of it?

E.g. the firmware that is running on the microprocessor(s) that
control it?

No, but by studying the interfaces and functions you could design your
own processor and firmware that would replace the original.

With D-STAR unless you buy the pre-programmed DSP chips or the DV
dongle you can't legally reimplement the AMBE codec at all, and that
makes it very different from other kit that implements unpatented modes.

--

Brian Morrison