[Elecraft] fldigi KX3 question

[Don Wilhelm]

Tim,

The default bandwidths are to work well with the internal decoder where 
you tune to the desired signal with the VFO,
If you are using a computer application, widen the bandwidth and let the 
software application do the decoding.

73,
Don W3FPR

On 3/28/2016 8:57 PM, Tim Henrion wrote:
>
>> On Mar 28, 2016, at 7:46 PM, Don Wilhelm <w3fpr at embarqmail.com 
>> <mailto:w3fpr at embarqmail.com>> wrote:
>>
>> Note that the default bandwidth for DATA A and AFSK A data submodes 
>> is narrow on the KX3.
>
> Another one for the ‘Feature Request’ list. The “audio” data submode 
> bandwidths are way too narrow out of the box. Does anyone have any 
> idea why this is? I’m not sure I see much of a reason for any audio 
> filtering at all other than the traditional 3K roofing filter. The 
> downstream PC is going to do its own audio filtering at the DSP level 
> before decoding the data anyway.
>
> For the OP: If you like to tweak hardware, there are a number of 
> performance improvements that can be made to the SignaLink USB 
> hardware. Out of the box, its got a pretty high noise floor and is 
> susceptible to noise on the USB +5 line, which directly feeds the 
> onboard amp bias network without NO filtering. 
> http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html is a 
> good place to start if you’re interested in better performance from 
> your SignaLink.
>
>