[Elecraft] K3 Text Decoder

[Mike Harris]

Just for clarification, I don't use the internal CW or RTTY decode 
functions.  I just use CWT for accurate CW netting.  Following that it 
is easy to make the often useful TX offset when calling in a simplex 
pile.  CWT is a function I use all the time and that is why its degraded 
performance in 4.51 was immediately noticeable.

Regards,

Mike VP8NO

On 26/05/2012 09:24, W4ATK wrote:
> I concur with Mike's evaluation. 4.48 is much more robust than 4.51 as far as CW Decode is concerned.
>
> Some things you may want to try to improve the S/N ratio and thus make the decoder more effective.
>
> 1)Turn the AGC off and reduce the RF Gain (Be careful here and drop the AF Gain or you might get a "crash" in the audio. I have AF LIM set to 26 to protect my audio amp.)
> 2)Narrow the bandwidth. I often use my 400Hz roofing filter and then use the width control all the way down to 100Hz.
>
> Using these methods I was able to copy stations that were not discernible on the P3. It is a trick from the old days before product detectors etc. but I find it still works.
>
> 73s Jim, W4ATK
> On May 26, 2012, at 7:07 AM, Mike Harris wrote:
>
>> This could be related to the reported problem with the CWT function
>> previously reported and under investigation.  Firmware 4.48 is OK,
>> firmware 4.51 is not.
>>
>> Regards,
>>
>> Mike VP8NO
>>
>> On 26/05/2012 01:44, John_N1JM wrote:
>>> Thanks, Fred. It had seemed to me my previous K3 did better but I could have
>>> lucked with the right settings for that. I'm generally not a cw person but
>>> thought I would try WPXCW tonight and hopefully the decode would give me a
>>> little help but for the most part it didn't. My ears were better :-).
>>>
>>> John N1JM