[Elecraft] Noise Cancelling Headphones

[Oliver Johns]

Jim,

It takes longer to gouge in-ear phones out of your ear canal than it does to fling off a pair of over-ear cans.  That's the problem.  A piece of radio gear may at any instant decide to go ballistic and produce a loud buzz or whistle that can damage you.  Keeping the AGC on is not a certain protection.

Oliver
W6ODJ


On 26 Jan. 2013, at 11:15 AM, Jim Brown <jim at audiosystemsgroup.com> wrote:

> On 12/26/2013 11:06 AM, Oliver Johns wrote:
>> I'd worry about sudden surges of high-intensity audio.
> 
> YES -- this is why I consider turning off AGC a really bad idea, especially in a contesting environment where you have the RF gain cranked to copy a very weak station and a guy calls you with a signal well over S9.
> 
>>  They happen even in the best families.  Your ears could be badly damaged before you could yank the Etymotics out.  I'd never, ever use in-ear headphones in a ham-rig setting.
> 
> Absolutely no difference between in-ear and circumaural to the extent that the transducers are linear.
> 
> 73, Jim K9YC
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