Message-ID: <006901ccc665$8b3e6360$0401a8c0@xphd97xgq27nyf>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <004d01ccc63e$6971cf00$0401a8c0@xphd97xgq27nyf> <1A71E90203104C3DA73A9CF2779A7B02@JimPC> <005b01ccc642$d8b2cf00$0401a8c0@xphd97xgq27nyf> <8DDC2F5540CA49C4B0E6DC25B6D142ED@AGB>
Date: Thu, 29 Dec 2011 19:40:29 -0000
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Subject: Re: LF: Re: Re: USB QRS
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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" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
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  Ł3  each , not  quite plug  and  play ,
> need  to  have  driver  installed , from  mini  cd  or  by  web link
>
> G..
>
> --------------------------------------------------
> From: "mal hamilton" <g3kevmal@talktalk.net>
> Sent: Thursday, December 29, 2011 3:59 PM
> To: <rsgb_lf_group@blacksheep.org>
> Subject: LF: Re: Re: USB QRS
>
> > Jim
> > Tnx info.
> > What model do u use?
> > de Mal
> >
> > ----- Original Message -----
> > From: "James Moritz" <james.moritz@btopenworld.com>
> > To: <rsgb_lf_group@blacksheep.org>
> > 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
> >>
> >>
> >
> >
>