[ct-user] Serial interface & keying

alsopb alsopb <alsopb@gloryroad.net>
Mon, 10 Jan 2000 17:12:54 +0000


This brings up the nasty Win2000 problem.  My understanding is that
like WIN-NT one will not be able to use the LPT's for keying, antenna
control or anything else.  Those contemplating WIN2000 will probably
have to go this way anyhow.  What can be done to continue antenna
control via the computer hasn't been addressed by anyone yet. (no we
don't all have MP's or rigs which directly provide band data type
outputs)

I would like very much to know for sure this is not true, but the
tooth fairy hasn't been around here for quite some time.

73 de Brian/K3KO

Ron Stordahl wrote:
> 
> Waldek et al
> 
> Yes you can use a single serial port simultaneously for rig control and for
> CW keying, I have done so.  I use an ICOM781 and its interface only uses 3
> wires (RX, TX and Ground).  The DTR line is free and you can use it for CW
> keying using the appropriate transistor circuit shown in the CT manual.  I
> have done this only with CT using DOS, I have not tried this with WinCT.
> 
> It works, but there is a serious drawback, which could easily be fixed by
> Ken (if  could get his attention):
> 
> I start CT using a batch file, which first loads and starts the COMTRS's,
> COM1 for rig control & CW keying, COM2 for PacketCluster TNC.  Immediately
> after COMTSR for COM1 starts the radio goes into key down mode.  And it
> stays in key down mode until CT loads, starts, gets to the final
> screen--then you must hit one of the CW function keys to send something.
> Only then does the key down condition clear. COMTSR is asserting DTR true
> when it could be easily changed to do just the opposite at initialization.
> 
> Of course you can switch your rig to SSB temporarily to get through this
> frustrating problem, or you can switch to LPT keying which completely avoids
> this problem.  I switched to LPT keying, purchasing a separate LPT card.
> 
> COMTSR needs to be modified to correct this problem.
> 
> 73 Ron N5IN
> 
> From: "Waldemar Krzok" <Waldemar@zedat.fu-berlin.de>
> >
> > Hi Folks,
> >
> > a few months ago I read on this reflector that someone managed to
> > get rig control and keying on same (serial) port. Both handbook
> > and my experiense sez that this combination does not work.
> > I'm using Kenwood TS690 with ct 9.46.
> >
> > Waldek, DL7ANQ & SO6ANQ
> >
> >
> 
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