My friend informed me that setting 0 to all section of RX EQ solved the AF output level change issue. Many thanks to all for your suggestions.
73 de JH3SIF, Keith > 2015/09/14 18:12、Mike K2MK <[email protected]> のメール： > > 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. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
