[Elecraft] Headphones

[Macy monkeys]

If the manual says the headphone must accept any interference, I doubt Bose will do much.

John K7FD

> On May 9, 2020, at 1:32 PM, Mark Goldberg <marklgoldberg at gmail.com> wrote:
> 
> Have you contacted Bose? They are FCC part 15 and even say this in the user
> manual:
> 
> This device complies with part 15 of the FCC Rules and with Industry Canada
> license-exempt RSS standard(s).
> Operation is subject to the following two conditions: (1) This device may
> not cause harmful interference, and (2) this
> device must accept any interference received, including interference that
> may cause undesired operation.
> 
> I think it is incumbent upon them to make them work.
> 
> I know they have the capability. Their aircraft headsets have to operate in
> very similar conditions. Aircraft have HF radios.
> 
> I operate a station in our small RV with a KPA500 and a collection of other
> electronics and bluetooth devices, with good bonding and ferrites in
> hopefully the right places. Everything works with no issues.
> 
> 73,
> 
> Mark
> W7MLG
> 
>> On Sat, May 9, 2020 at 11:47 AM John Reilly <reillyjf at gmail.com> wrote:
>> 
>> FWIW, I bought a pair of the Bose 700 headphones, and I'm NOT happy.
>> They are very susceptible to RF, especially on 40 and 80m. They make
>> their system "bong" sound when I transmit. I have tried several toroid
>> chokes, even one close to the ear piece -- no help. On 40m, I have the
>> problem at power levels ranging from 5 to 1200 w. Too bad, they fit and
>> sound great.
>>   - John, N0TA
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