Thanks Don, Jim and George. I would guess that any method that shapes the audio would have the same desired effect i.e. different mic element, equalizer, etc.
Brian KB1VBF Sent from my iPad > On Feb 10, 2015, at 1:54 AM, Don Wilhelm <w3...@embarqmail.com> wrote: > > Those mods are not 'official Elecraft', but will help in reducing the bass > response of the KSB2. That is a good thing with any microphone because the > low frequency response just wastes power and does not add much to > communications quality. > > It is applicable for any microphone, not just the Heil. > > 73, > Don W3FPR > >> On 2/10/2015 12:57 AM, Phil Wheeler wrote: >> Good question. I've never had any issues with my audio reports, using the >> Elecraft MH2 mic; in fact all audio reports have been positive. It sounds >> like these mods are for the Proset K2 Heil mic/headset (I'm not sure which >> Heil mic element is in this model). >> >> There were some K2 mods related to the SSB bandwidth, but these were not so >> much "audio", if I understand the question -- though they would impact the >> audio. >> >> 73, Phil W7OX >> >>> On 2/9/15 8:33 PM, Brian Denley wrote: >>> George et al: >>> Did Elecraft ever adopt these (or any other) K2 SSB audio changes? >>> >>> Brian >>> KB1VBF >>> Sent from my iPad >>> >>>> On Feb 9, 2015, at 10:32 PM, George Winship, NC5G <gwwa5...@hotmail.com> >>>> wrote: >>>> >>>> Thanks for posting this, Ray. I also was getting those kind of reports on >>>> my >>>> K2. I was able to get the 1uF electrolytics but was unable to find the >>>> 0.1uF. G3RXQ was quick to respond to my email and said that a 0.1uF >>>> monolithic could be used instead. The results are great, as confirmed by >>>> hams I talk to on a regular basis for many years. >>>> >>>> Now, if I could only get the circuit between my ears to work so that I >>>> could >>>> tell that I had not put my K2 in split mode while trying to work K1N a >>>> little while ago, all would be good. The "frequency police" were not >>>> bashful >>>> in letting me know the error of my ways. >>>> >>>> Thanks again. >>>> >>>> 73, >>>> George NC5G >>>> >>>> >>>>> Other K2 owners may be interested in this. >>>>> After getting many reports of poor quality transmit audio with my K2 >>>>> (using >>>> the Proset K2 Heil boom >microphone and headset), I carried out the >>>> modifications described by G3RXQ which increase the lower cut >off >>>> frequency >>>> of the microphone circuit on the KSB2. This involves changing C34 from >>>> 2.2uF to 1uF, C31 >from 2.2uF to 1uF and C20 from 0.33uF to 0.1uF. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w3...@embarqmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to b.den...@comcast.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
