There are sound cards available that have multiple input and output ports such as the Delta-44 that is recommended for the SDR-1000 radio. This card is full duplex, you can be inputting and outputting to multiple channels simultaneously.
At 09:46 AM 10/9/2005, you wrote: >What if the computer cannot have a second sound card? >All the slots in my computer are full. And sometimes I >have had PCI conflicts when installing new cards. > >This is a 1998 computer with both PCI and ISA slots. > >Bob Macklin >K5MYJ >Seattle, Wa. > >--- F6EHJ <[EMAIL PROTECTED]> wrote: > > > > > ----- Original Message ----- > > From: "Alberto I2PHD" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Saturday, October 08, 2005 10:23 PM > > Subject: [soft_radio] Re: SDRadio - what's next ? > > > > > > > F6EHJ wrote: > > >>[snip] > > >> Please tell me more about what you are waiting > > for. > > >> If I can provide some help, it's not a problem. > > >> [snip} > > > > > > Gérard, > > > I have left all the details of the hardware to > > that OM, who is an expert > > > in RF > > > technology. He will then tell me how to control > > the hardware LO (I presume > > > he will > > > use a DDS) from inside my program, and I will do > > that. Probably he will > > > start working > > > on it as soon as he will have finished other > > projects he is busy with just > > > now, and > > > this should be at the beginning of next year. This > > is almost all what I > > > know now. > > > > > > 73 Alberto I2PHD > > > > OK Alberto. > > This is not exactly how I imagine the hardware side. > > Identical > > configurations already exist and are not easy to > > achieve without the same > > hardware exactly. > > Your existing software is very friendly because it > > admits many styles of > > mixer and LO which keep the project very open for > > amateur experimentation. > > Including all the hardware control (including DDS > > LO) imposes the LO (and > > the DDS) and the associated circuits I suppose, > > which reduce dramatically > > the opportunity to have its own hardware and exact > > duplication will be the > > only way to succeed. > > In my opinion, the existing software is very nice > > and the only improvement > > to the RX section will be a true SMeter. > > Considering the transmit section a simple12 kHz I/Q > > output would be fine > > and enough. It could be generated with a secondary > > sound card to avoid > > sophisticated switching, in this case a single RX/TX > > command will be needed. > > May be I'm wrong but this is my point of view....If > > somebody have other > > ideas.....!! > > > > Best regards, > > > > Gérard/F6EHJ > >Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/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/
