[Elecraft] Fw: RTTY Questions

[Ray Sills]

Plus... if the audio levels are properly set, the distortion levels  
should be very low.  Certainly, the distortions of the RF signal due  
to propagation would be worse than the conversion distortions.
If you use the on-board method of sending RTTY or PSK31, you would  
get the benefit of not having to convert analog audio to digital, etc.

73 de Ray
K2ULR

On Apr 20, 2012, at 1:09 PM, Jim Brown wrote:

> On 4/20/2012 9:36 AM, Bill Frantz wrote:
>> With a K3, the audio starts in digital form in the DSP.
>> Converting it to analog to convert it back to digital for input
>> to the computer can only introduce distortion.
>>
>> I'm lobbying Elecraft for a direct digital interface.
>
> Yes, but -- there is the issue of the FORMAT of the digital data, both
> from the points of view of encoding and of physical interface,  
> which are
> likely to be quite different within the radio and the computer, and  
> the
> two systems must be able to talk to each other. Given that there are
> many low cost A/D -- D/A converter/interfaces on the market that work
> fine, that's a wheel that Elecraft does not need to invent.
>
> 73, Jim K9YC
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