ARLA/CLUSTER: Video do novo DV-RPTR modem board

[João Gonçalves Costa]

Já se encontra desde a algum tempo em testes em Portugal, em especial no repetidor D-Star da Serra da Arrábida em Setúbal.

New DV-RPTR modem board

A New Year's Day video showing the DV-RPTR modem board from Germany. It arrives as a D-Star GMSK board... but with a difference!

Instead of using a more traditional CMX589 GMSK modem chip, a software based DSP modem provides the same functionality.

The advantage of this approach is that this board is not limited to being a D-Star only HotSpot board... other digital modes can be accommodated with no hardware changes, a firmware re-write is all that is needed.

Open source hardware, firmware and software makes it an experimenters delight. Check out http://www.dvrptr.de/ ... don't put a hyphen between dv & rptr like I said in the video... oops.

Initial tests show this board to be an excellent performer and possibly even better than the CMX589 in receiving weak signals.

The DV-RPTR Control Center software allows connection to Dplus Reflectors, Dextra Reflectors and also Dplus connection to gateway computers. It also supports ircDDB and GPS to APRS translation.

DV-RPTR support is planned for the Dutch*Star WinDV software as well.

Watch DV-RPTR Modem Board
http://www.youtube.com/watch?v=J_kmqJHWHIM&feature=youtube_gdata


DV RPTR Open Source Modem
http://www.dvrptr.de/

D-Star Digital Yahoo Group
http://groups.yahoo.com/group/dstar_digital/

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