KA9RZA, if you convert from analog to digital, then you cannot send those digital data to the sound card anymore... the sound card accepts only analog data, which are then converted to digital by its on-board ADC. And you will gain some advantages in performing yourself the A to D conversion only if your ADC is better than that of the sound card... If the conversion to digital is done externally, then you must interface differently the Rx with the PC, e.g. via the USB port. This is exactly what the guys on the HPSDR project are developing. Their Janus board seems to be fantastic, way better than the Delta 44, and it will be interfaced with the PC using the Ozymandias board, which implements an USB 2.0 interface. I am following very carefully that project, to evaluate if/when adapt Winrad to it.
73 Alberto I2PHD ----------------------------- [EMAIL PROTECTED] wrote: > > > Alberto: > > Over at the very controversial group softrock40 group. I suggested once > that they could add analog to digital convertors right after the > quadrature detector and so they seemed to have took off on that idea for > awhile. It seems like it was an idea some of them had also been > previously pondering: I do not know. Anyways it seems like a logical > evolution of the circuit ideas. > ---- snip ---- ------------------------ Yahoo! Groups Sponsor --------------------~--> Everything you need is one click away. Make Yahoo! your home page now. http://us.click.yahoo.com/AHchtC/4FxNAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
