Hi Bob, Many thanks for your suggestion. I sent you my reply, but your mail server rejected as a possible abuse.
> Hi Kieth, > > it is nor necessary to set all to 0db. Just do not use the EQ > for peaking. He can still use roll off of the undesired lows and highs > leaving the mid range flat that covers the beat frequencies (pitch) of > interest. > > 73, > Bob > K2TK ex KN2TKR (1956) & K2TKR 73 de JH3SIF, Keith > 2015/09/15 6:39、Keith Onishi <[email protected]> のメール： > > 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] ______________________________________________________________ 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]
