[RTTY] New Computer, IC-756 PROIII and MMTTY

Joe Subich, W4TV lists at subich.com
Sun May 20 14:05:18 PDT 2012


> The one problem that I have with this being a very new computer is
> that there aren't any serial or parallel ports only USB ports.

No, it is not a problem.  However, you will need to add serial ports
either using USB to serial adapters (one for FSK/PTT from MMTTY and
one for rig control if you eventually use a logging program) or add
a multifunction card with serial ports if you can find one for your
computer's PCI or PCI-e bus.

73,

    ... Joe, W4TV


On 5/20/2012 7:04 AM, allan1 at dejazzd.com wrote:
> Joe
>
> Thanks for your response.  The one problem that I have with this being a very new computer is that there aren't any serial or parallel ports only USB ports.  Is this a problem, I hope not!
>
> Allan W2TN
> ---- "Joe Subich wrote:
>>
>> See the top diagram on page 19.
>>
>> "AF Input" of the TNC is "Line In" of your sound card,
>> "PTT" is the DTR output of your serial port with an open
>> collector transistor driver. "RTTY Keying" is the FSK
>> signal - the TxD output of your serial port - again with
>> an open collector transistor driver to convert the RS-232
>> levels to "contact closures."
>>
>> Schematics for the open collector drivers are shown on Don's
>> web page:  http://www.aa5au.com/rttyinterface.html
>>
>> 73,
>>
>>      ... Joe, W4TV
>>
>>
>> On 5/20/2012 12:07 AM, allan1 at dejazzd.com wrote:
>>> I would like to use MMTTY with my PROIII and my computer.  Anyone have any thoughts or hnits as to how to do this?  I want to use the ACC1 on the back to access everything.  The manual only indicates how to hook up the PRO111 to a TNC which is not needed for FSK with this rig.
>>>
>>> Thanks
>>>
>>> Allan W2TN
>>> _______________________________________________
>>> RTTY mailing list
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>>>
>
>


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