[Elecraft] Selectivity

[Bob McGraw K4TAX]

Are you using or boosting the receive EQ in CW mode?   I believe at 
lower BW settings the EQ will be negated thus you are losing the effects 
of the applied boost.   As an operating practice, little to no RX EQ 
should be used for CW mode as EQ typically creates phase effects 
impacting harmonic content of the audio signal.    It is always much 
better to "attenuate" as opposed to "boost".

73

Bob, K4TAX

On 2/7/2018 6:27 PM, Nr4c wrote:
> “Selectivity”???
>
> Do you mean DSP filter width?
>
> Narrow width does decrease the background noise.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Jan 30, 2018, at 4:05 PM, Roger D Johnson <n1rj at roadrunner.com> wrote:
>>
>> I noticed that during the contest, that if I selected 50 or 100 Hz selectivity, the audio would drop way down. It didn't used to be this way. I tried reloading
>> an earlier version of the software but couldn't figure out how to do it.
>>
>> Hope this comes through, finally!
>>
>>
>> 73, Roger
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