On Jun 7, 2010, at 2:02 PM, e_l_green wrote:
If ICOM had chosen something other than AMBEC, none of this would
be a problem... but apparently they felt taking a short cut and
gluing an extra chip into their designs was worth more to them in
terms of quicker design turnaround than the alternative of finding a
provider who was willing to license an algorithm for a reasonable
cost that could be integrated into the main CPU of the radio.
JARL chose AMBE as part of the D-STAR protocol definition. If Icom, or
any other manufacturer wanted to meet the specification (which is
required for DV on Amateur Radio in Japan, and that is why Kenwood
sells rebadged Icom radios in Japan) they had to use AMBE.
AMBE is the best, cost effective, publicly available vocoder on the
market and probably the best choice for now.
John D. Hays
Amateur Radio Station K7VE
PO Box 1223
Edmonds, WA 98020-1223 VOIP/SIP: [email protected]
Phone: 206-801-0820
801-790-0950
Email: [email protected]
