You need some sort of interface for the TX side.   You can go in through the 
mic jack and use the radio's vox, or  if your radio allows, through  a rear 
panel jack and the software  will handle TX/RX changeover.

73, Steve KW3A
----- Original Message ----- 
From: "Mark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, December 09, 2008 11:53 AM
Subject: Re: sound cards


> Hi
>     Doesn't a person need some thing like a VOX unit when transmitting
> digital through a sound card? I have never figured out this part of 
> things.
>
> God bless,
> Mark
> ----- Original Message ----- 
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, December 09, 2008 8:49 AM
> Subject: Re: sound cards
>
>
>> If you want to operate PSK or AFSK RTTY,  you  can have the screen reader
>> on
>> one card and  the digital software  on the other.    Using only 1 card 
>> you
>> have to be careful that  the screen reader voice doesn't go out over the
>> digital  output.    With 1 sound card, you can limit  how much the screen
>> reader speaks to avoid this problem or use something like Digitalk for 
>> PSK
>> which is self voicing.   I run RTTY in FSK mode which doesn't use the
>> soundcard for TX and so no problem.
>>
>> 73, Steve KW3A
>> ----- Original Message ----- 
>> From: "Richard Fiorello" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, December 09, 2008 10:43 AM
>> Subject: sound cards
>>
>>
>>> Hello;
>>> I can't help asking.  What advantages do you find with two sound cards?
>>> Does it help with anything radio related?  I suppose it might help if 
>>> you
>>> were connecting the pc to your sound system.
>>> Richard
>>>
> -- Currently in Pendleton, Eastern Oregon Regional At Pendleton, Oregon
> Clear, 30.0°F Wind:S-170° at 7mph
>