YES this is possible and is exactly what I posted earlier. Already Hamscope
does this for CW and it works perfectly on Windows 2000.
> -----Original Message-----
> From: owner-trlog@contesting.com [mailto:owner-trlog@contesting.com]On
> Behalf Of SM5AJV
> Sent: Saturday, January 06, 2001 07:13
> To: trlog@contesting.com
> Subject: Re: [TRLog] Booting to MS-DOS with Windows ME
>
>
>
> Hi!
> Maybe this thread belongs to some other forum, but here is one
> thought.
>
> Wouldn't it be possible to produce perfect CW using the
> soundcard under windows? In order to key the Tx the sound
> card have to have some keying interface in order to do proper keying.
> I am not sure if the sound card is good at sending DC directly to
> a keying transistor. But if not, it would possible to use i.e. a 10kHz
> keyed tone into a diode detector before the transistor.
>
> Hams on VHF is doing this when working meteor scatter, but they
> feed the audio directly into their SSB-transceiver.
>
> 73 de Ingo SM5AJV / 8S5A
>
> ----- Original Message -----
> From: "Gilbert Baron" <gbaron@home.com>
> To: "Mark Beckwith" <swca@ionet.net>; <trlog@contesting.com>
> Sent: Saturday, January 06, 2001 1:40 PM
> Subject: RE: [TRLog] Booting to MS-DOS with Windows ME
>
>
> >
> >
> >
> > > -----Original Message-----
> > > From: owner-trlog@contesting.com [mailto:owner-trlog@contesting.com]On
> > > Behalf Of Mark Beckwith
> > > Sent: Friday, January 05, 2001 14:52
> > > To: trlog@contesting.com
> > > Subject: RE: [TRLog] Booting to MS-DOS with Windows ME
> > >
> > >
> > >
> > > >I assume you don't want the computer to send CW, as this
> will never be
> > > >reliable within Windows or any multitasking system which steals clock
> > > >cycles. The CW ends up like a piece of Gorgonzola!
> > >
> > > That boot diskette is sounding better and better all the
> time. From out
> > > here in the "user" peanut gallery, isn't there some way to allow
> > > the keying
> > > part of the program to look at the clock cycles before they
> get stolen?
> > >
> >
> >
> > That is not possible if you want to allow stealing (REALLY DMA)
> to work. It
> > is NOT the DMA that is causing the problem but rather the fact
> that windows
> > uses time sharing to execute programs. It gives a certain
> amount of time to
> > each task and then stops the task and starts the next one in
> line. You would
> > have to stop that function and then you stop windows.
> >
> >
> >
> > > Mark, N5OT
> > >
> > >
> > > --
> > > FAQ on WWW: http://www.contesting.com/FAQ/trlog
> > > Submissions: trlog@contesting.com
> > > Administrative requests: trlog-REQUEST@contesting.com
> > > Problems: owner-trlog@contesting.com
> > > Feature Wishlist: http://web.jzap.com/n6tr/trwish.html
> > >
> > >
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/trlog
> > Submissions: trlog@contesting.com
> > Administrative requests: trlog-REQUEST@contesting.com
> > Problems: owner-trlog@contesting.com
> > Feature Wishlist: http://web.jzap.com/n6tr/trwish.html
> >
>
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/trlog
> Submissions: trlog@contesting.com
> Administrative requests: trlog-REQUEST@contesting.com
> Problems: owner-trlog@contesting.com
> Feature Wishlist: http://web.jzap.com/n6tr/trwish.html
>
>
--
FAQ on WWW: http://www.contesting.com/FAQ/trlog
Submissions: trlog@contesting.com
Administrative requests: trlog-REQUEST@contesting.com
Problems: owner-trlog@contesting.com
Feature Wishlist: http://web.jzap.com/n6tr/trwish.html
|