[RTTY] will a USB-Serial converter work for FSK and MMTTY

[rjohnson]

Hi Joe;
I wish I had know that before I spent $214.45 for the USB III.

I bought one a month ago and have had nothing but problems with it.
 I spent 4 Hrs tonight trying to get it to work with HRD/DM780.

Wish I had known that the usable programs was  LIMITED

My home brew interface worked OK for what it was ($214.45) cheaper.

On top of that the USB Router has been problematical since day one.
I got it working with MMTTY, but that's all I can use it for ???
That's a real bummer !!!

73
Bob, K1VU

At 10:06 PM 8/22/2011, Joe Subich, W4TV wrote:

>The USB to serial converter will work for FSK but *only* with MMTTY or
>the "software generated FSK" in Writelog.
>
>"Modern" USB to serial converters generally support 300 bps to 3 mbps
>instead of ~20 bps to 230k bps of the first generation devices.  This
>is due primarily to the higher clock (crystal) frequency and a desire
>to support higher data transfer rates for mass storage devices.
>
>The one exception is the Edgeport devices which will still support
>45.45 baud FSK.
>
>73,
>
>    ... Joe, W4TV
>
>
>On 8/22/2011 9:37 PM, WW3S wrote:
>> I've seen conflicting info whether a usb-serial converter will work for
>> FSK...some say they baud rate isn't right, nor will it support 5
>> bits....planning on building a simple interface and trying one....will the
>> ones with the FTDI chipset work? I imagine I'd need both FSK and PTT so
>> maybe a dual opto-isolator in a DB9 shell would work?
>>
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