There are newer headsets claiming 40ms latency, but the host must support the LL format. My estimate for the QC-35 which uses the ATX format is in the range of 150-250ms. This may not be a problem at slower CW speeds for some folks, but I couldn't tolerate it.
ED / W2RF -----Original Message----- From: Rajiv Dewan <[email protected]> Sent: Wednesday, October 14, 2020 11:45 AM To: E.H. Russell <[email protected]> Cc: Jim Miller <[email protected]>; Jim McDonald <[email protected]>; [email protected] Subject: Re: [Elecraft] K4 Headphones Q After reading a positive review and to reduces wires at my operating position, I connected a bluetooth transmitter to my K3/0 and tried a bluetooth headset. The latency was so bad that I just could not send cw using my paddles. I attached a wire to the headphones and the problem went away. Transmitter: Taotronics BA014, Headphones: Sony WH-1000XM3 Raj > On Oct 14, 2020, at 11:31 AM, E.H. Russell <[email protected]> wrote: > > Wireless introduces latency, wired does not. Definitely use wired for CW. > > ED / W2RF > > > > > -----Original Message----- > From: [email protected] > <[email protected]> On Behalf Of Jim Miller > Sent: Wednesday, October 14, 2020 11:13 AM > To: Jim McDonald <[email protected]> > Cc: [email protected] > Subject: Re: [Elecraft] K4 Headphones Q > > How about latency for CW either wired or wireless? > > How do you deal with battery life in contesting? > > Stay safe! > > Jim ab3cv > > On Wed, Oct 14, 2020 at 10:35 AM Jim McDonald <[email protected]> wrote: > >> Over the ear - very comfortable. >> >> Top rated (87) by Consumer Reports - tied with the new model. >> >> 73, Jim N7US >> >> -----Original Message----- >> >> Do the QC-35 rest on your ear or are they over the ear? >> >> Rich - N5ZC >> >> On 10/14/2020 7:59 AM, Jim McDonald wrote: >>> I just bought a pair yesterday at a closeout price of $170 from my >>> local >> Costco. They have been discontinued. Costco online is now out of >> stock, but some stores still have them. Amazon has them for $199 now. >>> >>> My favorite headphones up to now has been Sennheiser HD 280 PRO but >> these sound great and eliminate the noise from my KPA1500 with the >> fan on >> #2 and a nearby water heater fan. No comparison with my old QC2 > headphones. >>> >>> 73, Jim N7US >>> >>> -----Original Message----- >>> >>> >>> I also use a QC-35. When plugged in with a cord, the power must be >>> on >> for the noise cancelling to work. That also turns on the DSP which >> greatly improves audio quality. >>> >>> ED / W2RF >>> >>> >>> >>> >>> -----Original Message----- >>> >>> Jim, >>> >>> I only use my Bose QC-35 when: >>> >>> 1. on the cell phone. >>> 2. mowing the yard/tuning my motorcycle 3. whenever using the K3 & >>> K3s. >>> >>> The noise cancelling works perfectly with the blower from the Alpha >>> 77SX right next to me, I only hear what is coming in from the radio. >>> Why your >>> QC-35 does not noise cancel when attached via cord is not normal, >>> mine >> is a Godsend. >>> >>> 73, >>> >>> Gary >>> KA1J >>> >>>> I have Bose QC-35 headphones. Noise canceling does not work on any >>>> radio when you use the cord. Headphones work well with a Bluetooth >>>> connection.What kind of device do I use, if and when my K4 is >>>> delivered?Also on the K4 can a USB port expander be used on the K4 >>>> with multiple devices and what is the K4 limited to?Jim K9TFSent >>>> from my T-Mobile 4G LTE Device >> ______________________________________________________________ >> 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] ______________________________________________________________ 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]
