[RTTY] Fw: [WriteLog] RTTY SO2R Basics

[Byron Lichtenwalner]

Subject: Re: [WriteLog] RTTY SO2R Basics


> Hi Bob
> I have done what your trying to do using an IC765, IC7800, Microkeyer to 
> interface the 765, a home brew interface using a real serial port for the 
> 7800.  I use a single sound card running two copies of MMTTY to decode the 
> left and right channel. XP I understand is required to do this. I key both 
> transceiver with FSK.
>
> While not of interest to you, I ALSO RUN  CW, but needed to add a 
> DXDoubler to accomplish that. (Could have used a relay to select radios 
> from a pin on the LPT port.)
> The only additional hardware I found necessary was a set of bandpass 
> filters to kill transmitter noise into the other receiver.  I am using 
> ICE'S. Dunstarrs are reported to do well.  If you want to automate 
> bandswitching the filters',  band decoders will be needed.
>
> If I can help, write.
>
> Byron, W3WKR
>
>
>
> ----- Original Message ----- 
> From: "K3MQ" <k3mq at bwave.com>
> To: <writelog at contesting.com>
> Sent: Monday, September 04, 2006 5:55 PM
> Subject: [WriteLog] RTTY SO2R Basics
>
>
>> I'm considering going SO2R for RTTY contesting. I've read enough info 
>> online
>> to get totally confused regarding hardware.
>>
>> I now have a IC-756 ProII using a Microkeyer interface into an XP 
>> computer.
>> I have rig control and am using FSK. Software is Writelog. Antennas are 
>> quad
>> for 10-20m and a multband windom.
>>
>> I will probably get a 756 or 756 Pro I for second unit (can't live 
>> without
>> band scope). I will probably use a different multiband wire to get 
>> started
>> with second rig.
>>
>> I want to run FSK on second radio with rig comtrol. I should be able to
>> select antennas directly on radios without external switcher since I am 
>> not
>> sharing any antennas.
>>
>> I intend to only use SO2R for rtty, no other modes, and I want to use 
>> just
>> one computer.
>>
>> The question is, what additional hardware do I need? Is a second 
>> interface
>> (MicroKeyer) needed? That is the point of confusion. I presume I need two
>> soundcards, but how does the signal get from the second soundcard to the
>> second rig without a second interface?
>>
>> We are on a budget here, and adding the new Microkeyer SO2R controller at
>> $700 is out of the question.
>>
>> 73  Bob K3MQ
>>
>>
>>
>>
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>