[Elecraft] [K3] Width Control and AF Output Level

[Mike K2MK]

Hi Keith,

I think the problem is in the setting for the RXEQ. You do not want to use
+db boost for CW. As I understand it, RXEQ is disabled at 100Hz and 50Hz
width. So if he has boosted a particular frequency by 10db then when he
narrows the bandwidth he will suddenly hear a loss of audio signal of 10db.
To solve this problem keep the RXEQ set to 0 db for the frequencies of
interest and use negative db settings for the frequencies of no interest.

73,
Mike K2MK


Keith Onishi wrote
> One of my friend K3 users report that AF output level with 100Hz passband
> width is lower than with 150Hz passband width. He also reported that a
> noise like “Ptsu” was generated on reducing passband width from 150Hz to
> 100Hz. He had guessed that these were specific to his K3, but some other
> K3 users including myself reported the same.
> Some extreme users who use this narrow passband may have been bothered by
> this reduced AF output level and noise. If the AF output level change is
> caused by K3 DSP filter design or program, adding automatic gain
> compensation feature to keep same AF output level would be highly welcome.
> 
> 73 de JH3SIF, Keith





--
View this message in context: http://elecraft.365791.n2.nabble.com/K3-Width-Control-and-AF-Output-Level-tp7607595p7607610.html
Sent from the Elecraft mailing list archive at Nabble.com.