Re: [linuxham] Re: Data mode cables
And to follow-up on Frank's comment, there's a schematic for a right-channel PTT circuit in the online help pages for fldigi as well.
CN87trOn Jul 16, 2013 7:00 AM, "kn6wh" <gm0csz@...> wrote:
--- In firstname.lastname@example.org, g8kbvdave@... wrote:
> On 16 Jul 2013 at 10:26, email@example.com wrote:
> > --- In firstname.lastname@example.org, "kb9vlp" <dennisn77@> wrote:
> > >
> > > I understand what you are trying to say. I also have a Rigblaster
> > Pro, and have done similar. I used the audio out through the Rigblaster,
> > feeding it into the Mic and using "Vox".
> > > However, I had to always take the front plate off the radio when I
> > wanted to re-attach the mic, and if I were doing CW, the radio would
> > briefly stop transmitting if the rate was slower than say, 10 wpm. No
> > problem is i were using PSK or other soundcard modes.
> > > That is why I wanted to go with this other set up.
> > >
> > > Dennis - KB9VLP
> > >
> If I recall correctly...
> Fldigi (and maybe other digimode programs) can put out a PTT tone on the other channel of the
> soundcard, indipendantly of the data tone(s). There are many and plenty of simple circuits on the
> web to use that and key a radio via a "real" PTT line.
> Dave G0WBX.
As a follow-up of Dave´s message a homebrew article : Digital Interface for FLDigi by KB9CSW can be found in QST-August 2012 pages 36-38
The design includes a 1000Hz tone generator to perform PTT
Frank GM0CSZ / KN6WH
Check out the article in the Aug 2012 issue of QST pp36. This may be of some help. NOTE; the pinout of the 4n26 is wrong.
de Dave KB9CSW
David Wm Spearing
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