[Elecraft] KX3 PSK

[John Griswold]

Peter, VK4JD, wrote to suggest it was the stereo effects control, which 
was set to delay. I changed it to Off and voila!

Although I plan to get parts for an audio isolator anyway.

Thanks Peter!
Thanks Don!


On 3/1/2013 7:34 PM, Don Wilhelm wrote:
> John,
>
> Are you using isolation transformers (galvanic isolators) between the 
> KX3 and the sound card?
> That may help.  The alternative to galvanic isolators is to tie the 
> grounds of both the KX3 and the computer together with heavy wire (or 
> copper braid)  Be certain that the power supply to the KX3 is included 
> in this bonding - the bonding should be from each device to a single 
> point ground.
>
> Yes, I know that laptops with plastic cases are difficult to find a 
> good place to connect the bonding strap - in that case, the galvanic 
> isolation is the easiest solution.
>
> 73,
> Don W3FPR
>
> On 3/1/2013 7:17 PM, John Griswold wrote:
>> I am using DigiPan to play PSK31 with my KX3. In the DigiPan 
>> waterfall, it looks as though someone has dragged a comb through it, 
>> with trace alternating with dark space showing no signal. I went 
>> through the menu changes I had made, and when I toggle between Dual 
>> RX Off and Auto, the PSK display changes. I have posted a picture 
>> http://www.kk1x.net/photos/psk.jpg for those interested.
>>
>> I'm curious to know why this is - now that I know why it happens, I'm 
>> pleased, but I wonder if anybody on the list could explain it to me.
>>
>> Thanks & 72,
>> John KK1X
>>
>
>

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|John Griswold, KK1X  |
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