[Elecraft] Making K3 RX audio like K2

[J Fox]

NZ0T wrote:
> 
> Thanks Lyle, I had not thought of changing the delay on afx which I use
> all the time.  I wear hearing aids which may be part of my problem though
> I take them off when using headphones.  I'll try PB2 in CW and see how
> that works.  Don't get me wrong - the audio od the K3 is excellent just
> different than my K2.
> 
> Lyle Johnson wrote:
>> 
>> Hello Bill!
>> 
>>> I like the sound of the RX audio of my K2 with the KAF2 filter better
>>> than my
>>> K3.  It has less hiss and just sounds better - at least to my crummy
>>> ears.. 
>>> I have played around some with the RX equalizer in the K3 and have
>>> improved
>>> it some but has anyone had time to really find out what settings will
>>> best
>>> mirror the K2 with the KAF2?
>> 
>> The K3 is a very different radio than the K2, and some of this will be 
>> reflected in a different character in its sound.
>> 
>> The KAF2 uses analog filters with feedback to provide narrower 
>> bandwidths, and includes an L/C low pass filter to suppress hiss and 
>> other high-frequency noises.
>> 
>> In general, the K3 DSP filters are sharper than those of the K2 w/KAF2. 
>>   One way to get some of the feel might be to use the PB feature in CW 
>> mode.  This lets you adjust a wider, underlying filter which may restore 
>> a little of the audio you've become accustomed to in the K2.
>> 
>> If you have exceptional high frequency hearing, you might want to 
>> consider headphones (or speakers/amplified speakers) with some high 
>> frequency roll off.
>> 
>> Activation of NR with a setting of F1-1 or F1-2 may also help tailor the 
>> sound a bit more to that of the K2.
>> 
>> In the end, though, the K3 has its own unique characteristics.  I hope 
>> you grow to enjoy them as much as you do those of your venerable K2
>> /KAF2.
>> 
>> 73,
>> 
>> Lyle KK7P
>> 
>> (whose K2s are getting very dusty...)
>> 
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> 
> 

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