Re: GPIO versus USB on the 3000
"John D. Hays" <john@...>
On Mon, Dec 15, 2014 at 8:02 AM, mb7usm@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:
They are functionally the same. The GPIO version appears as a serial port to the Raspberry Pi and the USB version appears as a serial port to any computer with the correct FTDI USB serial driver.
Yes and Yes.
The UDRX-440 is primarily a digital data radio. To include digital voice one adds a DV3000 (GPIO) or ThumbDV™ (USB) device, as an additional option.
NW Digital Radio is not currently planning to create a DMR package for the UDRX-440, but others have expressed interest. BTW, multiple ThumbDVs can be attached to a computer to provide multiple AMBE streams. The DMR and D-STAR AMBE streams are slightly different and would need to be encoded separately (though the AMBE 3000 chip can do each).