Vic, Thanks.
There is no "tone" that I would associate with what I am hearing. It is more a burst of noise, but transient in nature. Jim W6AIM . -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic Rosenthal 4X6GP/K2VCO Sent: Sunday, October 18, 2015 11:41 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Popping noise in headphones?? Well, I have an old K3 plus new synths, I have the RX EQ set to zero dB all across its range, and I hear the noises. I would call them short tone bursts rather than pops, though. 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ On 18 Oct 2015 21:16, Joe Subich, W4TV wrote: > > On 10/18/2015 11:46 AM, Wes (N7WS) wrote: >> As a point of reference, my old K3 with the original synthesizer >> board pops when changing BW. It's most noticeable going from 150 Hz >> to 100 Hz and vice versa. > > There will be a slight pop when changing bandwidth between 150 and 100 > Hz as the K3/K3S disables the RXEQ at bandwidths less than 150 Hz. > The level of the "pop" will be related to the amount of EQ in use > *around* *the center of the passband* (e.g., "pitch"). If for > example, pitch is > 500 Hz and bands 4 (400 Hz) and 5 (800 Hz) are 0, there will be little > or no "pop". However, if one has 400/800 Hz set for significant boost > there will be a fairly loud "pop" as the level changes. > > 73, > > ... Joe, W4TV > > > On 10/18/2015 11:46 AM, Wes (N7WS) wrote: >> As a point of reference, my old K3 with the original synthesizer >> board pops when changing BW. It's most noticeable going from 150 Hz >> to 100 Hz and vice versa. >> This is with normal AF gain and CM500 in rear headphone jack. >> >> On 10/16/2015 6:01 PM, jim wrote: >>> I just got my K3 back from Elecraft. They did the once over and >>> installed the new SYN boards. >>> >>> >>> I have noticed a "popping" noise in the headphones as I change the >>> bandwidth control, but ONLY as I transition from 200 Hz, 150 Hz, 100 >>> Hz and 50 Hz. I have only checked this in the CW mode. >>> >>> >>> This popping noise was not there before sending the rig in. >>> >>> >>> I have the 500 Hz and 200 Hz crystal roofing filters installed, >>> which is the same configuration as I had before sending it to >>> Elecraft. >>> >>> >>> Any thoughts? >>> >>> >>> Tnx >>> >>> >>> Jim >>> >>> W6AIM ______________________________________________________________ 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 jbol...@outlook.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 arch...@mail-archive.com
