[TowerTalk] RS-232 control of M2 Rotator

[Guy Molinari]

Have you verified that the port on the computer works when connected to another device?
 
Also, another problem is proper cabling.    Are you using a "null modem" cable (pins 2 and 3 reversed at each end)?   Or is it a straight through cable (not reversed).

 
> Date: Mon, 27 Sep 2010 12:02:41 -0700
> From: n6kj.kelly at gmail.com
> To: guy_molinari at hotmail.com
> CC: towertalk at contesting.com
> Subject: Re: [TowerTalk] RS-232 control of M2 Rotator
> 
> Yes, I'm aware of that. I have hyperterm set up for 8-N-1. I've
> tried that combination with nearly every baud rate possible, but still
> nothing.
> 
> On Mon, Sep 27, 2010 at 11:49 AM, Guy Molinari <guy_molinari at hotmail.com> wrote:
> >
> > There are 3 parameters for RS-232 communication.
> >
> > 1)  Baud rate
> > 2)  Parity bit (0 or 1)
> > 3)  Number of stop bits  (0, 1 or 2).
> >
> > I believe the M2 rotator is expecting none for the parity bits (0) and 1 stop bit.
> >
> > 73,
> > Guy, N7ZG
> >
> >> Date: Mon, 27 Sep 2010 11:31:04 -0700
> >> From: n6kj.kelly at gmail.com
> >> To: towertalk at contesting.com
> >> Subject: [TowerTalk] RS-232 control of M2 Rotator
> >>
> >> I'm trying to remote my home station. The last piece of the puzzle
> >> for (non-QRO) operation is the rotator. I've tried several things to
> >> get RS-232 control of my M-Squared rotator to work, but so far no
> >> luck. The rotator control box seems to be trying to communicate. I'm
> >> using the standard M-Squared control box. I see data coming back from
> >> the rotator, but it appears to be the wrong baud rate. I've tried
> >> every baud rate (including the one that the manual claims should work)
> >> so far with no luck. I've tried controlling it with Hyperterm and
> >> with DX4WIN. Neither works. This serial port works fine for other
> >> purposes. This is a real RS-232 port; not a USB-to-serial converter.
> >> Anyone got any tips before I call M-Squared?
> >> _______________________________________________
> >>
> >>
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