[Elecraft] K4 Headphones Q

[Dave Sublette]

I use a bluetooth set from Avantree and there is no latency that I can
detect.  I operate CW almost exclusively, using a key paddle and copying in
my head.  I don't know how they would work with keyboard and speeds above
25 WPM

Dave, K4TO

On Wed, Oct 14, 2020 at 11:32 AM E.H. Russell <ehr at qrv.com> wrote:

> Wireless introduces latency, wired does not. Definitely use wired for CW.
>
> ED / W2RF
>
>
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net>
> On
> Behalf Of Jim Miller
> Sent: Wednesday, October 14, 2020 11:13 AM
> To: Jim McDonald <jim at n7us.net>
> Cc: elecraft at mailman.qth.net
> 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 <jim at n7us.net> 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
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