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Re: [RTTY] USB to Serial Convertors

To: Jim W7RY <w7ry@arrl.net>
Subject: Re: [RTTY] USB to Serial Convertors
From: Andrei Stchislenok <asnp3d@gmail.com>
Date: Sat, 1 Aug 2009 12:24:45 -0400
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
I know, Jim.

I was just asked in private email if I use it with EXT FSK...
2009/8/1 Jim W7RY <w7ry@arrl.net>

> The edgeport does not require you to use EXTFSK. It works just as a serial
> port would.
>
> 73
> Jim W7RY
>
> ----- Original Message -----
> From: "Richard Ferch" <ve3iay@storm.ca>
> To: <rtty@contesting.com>
> Sent: Saturday, August 01, 2009 3:42 AM
> Subject: Re: [RTTY] USB to Serial Convertors
>
>
>  > Andrei,
> >
> > Does this work for FSK from MMTTY *without* using EXTFSK?
> >
> > As far as I am aware, basically any USB-to-serial adapter will work with
> > EXTFSK - there's nothing remarkable about that. It's using them directly
> > without the help of EXTFSK that is the problem.
> >
> > The reason I ask is that according to the specifications at the link you
> > gave, the minimum speed of this one is 300 baud.
> >
> > The same question applies to the Digi Edgeport multi-port devices. I
> > don't see a minimum speed mentioned in the specifications at the Digi
> > web site, but the maximum speed mentioned is high enough to raise
> > concerns. The reason most USB adapters don't work at low speeds, as I
> > understand it, is that there is a limit to the dynamic range of speeds
> > they will support, and in order to support very high speeds (230 kbps
> > and up) they give up support for very low speeds. In addition, they may
> > also give up support for 5-bit word lengths, since very high-speed
> > applications probably use only 8-bit words.
> >
> > 73,
> > Rich VE3KI
> >
> >
> > Andrei Stchislenok wrote:
> >
> >> I have been using this one for last four years - no problem...
> >>
> >> Dual Port USB to Serial RS-232 DB-9 Adapter Cable FTDI Chip $39.98
> >>
> >>
> http://www.usbgear.com/computer_cable_details.cfm?sku=XC-232-C&cats=199&catid=626%2C106%2C199%2C465
> >
> > _______________________________________________
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> >
>
>
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-- 
73's Andrei
EW1AR-NP3D
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