Tnx Graham, Jim es Co
Not all work as you say, depends what the application is, and some seem
expensive, maybe I should build an interface
de mal/g3kev
----- Original Message -----
From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Thursday, December 29, 2011 4:15 PM
Subject: Re: LF: Re: Re: USB QRS
> Big arguments on the digital groups as to what type works etc ..
> items that use the Prolific
> chips , may be better , the latest driver is :-
>
> Prolific 29/04/2011 2.0.16.166, I have one that cat links
the
> ft897 to a usb port
>
> Other usb/serial are provided by wch-cn , but the driver
(win-xp)
> is data 03/06/2009
> these run the pk232 and a t/r switch , seem to function ok ,
> these came from amazon.com for £3 each , not quite plug and play ,
> need to have driver installed , from mini cd or by web link
>
> G..
>
> --------------------------------------------------
> From: "mal hamilton" <[email protected]>
> Sent: Thursday, December 29, 2011 3:59 PM
> To: <[email protected]>
> Subject: LF: Re: Re: USB QRS
>
> > Jim
> > Tnx info.
> > What model do u use?
> > de Mal
> >
> > ----- Original Message -----
> > From: "James Moritz" <[email protected]>
> > To: <[email protected]>
> > Sent: Thursday, December 29, 2011 3:43 PM
> > Subject: LF: Re: USB QRS
> >
> >
> >> Dear Mal, LF Group,
> >>
> >> ...>Does anyone know of a QRS prog that uses the USB port on a computer
> >> instead of the Serial or Parallel ports
> >> de mal/g3kev...>
> >>
> >> More to the point, how to connect the other end of the USB cable to the
> >> transmitter, given that it only contains fixed 0, +5V power supply
> >> connections and a differential pair carrying high-speed bi-directional
> > data.
> >> The usual solution is to use one of the inexpensive USB - RS232
> > converters.
> >> The one in use here takes the form of a cable with USB plug on one end
> >> and
> >> D9 plug on the other, containing the interface circuit. It seems to
work
> >> fine.
> >>
> >> Cheers, Jim Moritz
> >> 73 de M0BMU
> >>
> >>
> >
> >
>
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