[Elecraft] HRD/DM-780, Elecraft K3 and soundcard

[Don Wilhelm]

Tony,

First make sure that you have a good audio connection from Line Out to 
the soundcard.  Use good quality cables that do not pick up noise.

What happens if you eliminate the Signalink - change HRD to use the 
computer default soundcard and connect from that soundcard line out to 
the K3 Line In - if decode is OK under that situation, look for the 
problem in the Signalink soundcard.
The built-in soundcard in most modern computers is one of the HD types, 
and is much more than sufficient for use with data modes.

On troubleshooting -- When you have a problem, suspect everything and 
eliminate the possible suspects one at a time.  Substitution is always a 
good analysis tool.

73,
Don W3FPR

On 6/25/2014 7:42 PM, Tony Lyon wrote:
> Hi Sal,
> Yes, I went through the Signalink audio level config again and no change.
> The Signalink pots are also set just like yours.
>
> 73,
> Tony L. (KJ5XF)
>> Hi Tony!
>> Have you gone through the Signalink audio levels config procedure?
>> Is it possible that its just Windows audio levels that are low?
>> All my Signalink pots (except Delay) are usually at 12 o'clock.
>>
>> __________________
>> Slava (Sal) B, W2RMS
>> W2RMS at arrl.net
>>
>> On Jun 24, 2014, at 9:47 PM, Tony Lyon <tony.lyon at austin.rr.com> wrote:
>>
>>> Folks,
>>> I decided to try HRD/DM780 for first time after using another HF 
>>> digital software program for
>>> probably 10 years.  I am using an Elecraft K3 and a SignaLink USB 
>>> interface and both
>>> MixW and MultiPSK fine with ZERO problems on either RX or TX. With 
>>> HRD/DM780 (version 6.2)  the K3
>>> will  TX fine (great signal reports), but on RX (with the Audio 
>>> input set between 50-60%), I only get about
>>> 90% copy even with a solid OLIVIA signal in the waterfall. I have 
>>> tried all kinds of SYNC/TUNE Margins
>>> (while using OLIVIA) to no avail. I have also tried all different 
>>> levels of audio RX input to no avail.
>>> If someone could share their SignaLink  and any K3 LINE-IN/LINE-OUT 
>>> config values to get DM780 to work I
>>> would appreciate it. I have been at this for a week (part time) and 
>>> still can't get DM780 to work correctly
>>> with my K3.
>>>
>>> There is clearly a parameter I am missing, but the documentation for 
>>> setting up the soundcard for version
>>> is 6.2 is a tad vague.
>>>
>>> 73,
>>> Tony L. (KJ5XF)
>>>
>>>
>>>
>>>
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>>
>
>
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