[Elecraft] K4 Headphones Q

[E.H. Russell]

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-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Gary Smith
Sent: Tuesday, October 13, 2020 2:01 PM
To: Elecraft at mailman.qth.net
Subject: Re: [Elecraft] K4 Headphones Q

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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