Hi Tim,
I've googled to try to find an answer and found this page:
http://www.fixya.com/support/t932364-humming_sound_in_left_earpiece
but the sound here is in the other earpiece. It's a real PITA as the
hum is quite loud. And nobody on that page found a solution.
This QC2 is fine for deadening noise by themselves, it's only when
they are plugged to certain devices that the problem shows up.
Gary
KA1J
> Hi Gary!
>
> This is really a strange problem. Maybe there is a wiring issue as WA3GIN
> points out.
>
> We use QC-2 headphones at K3LR. They work really well. The operators love
> them. I've never heard of anyone having trouble with them. We used the older
> QC-1 headphones for a long time and recently switched to QC-2s.
>
> Let us know what you learn that solves your problem.
>
> 73!
> Tim K3LR
> http://www.k3lr.com
>
>
> -----Original Message-----
> From: rfi-bounces@contesting.com [mailto:rfi-bounces@contesting.com] On
> Behalf Of Gary Smith
> Sent: Tuesday, January 13, 2009 10:09 PM
> To: rfi@contesting.com
> Subject: [RFI] Hum in Bose QC2 headphones
>
> Though not a RFI issue, perhaps someone has the solution?
>
> When I connect my Bose QC2 noise cancelling headphones to my K3 I get
> a hum which is only heard in the right headphone. It sounds like a 60
> cycle hum and touching anything metal in any way connceted to the
> radio resolves the problem completely.
>
>
> I've turned off all the different pieces of gear associated with the
> radio and I can get some reduction, just not an elimination of the
> buzz. If I were to say attach a wire to my wrist while at the
> station, it would be perfect. Of course that's not a good option for
> several reasons but it does resolve the issue.
>
>
> I remember this being an issue when I tried these with my laptop. The
> headset works great with my MP3 player with no hum. The hum is only
> when plugged in & when used strictly for noise cancelling, they work
> great. These headphones are awesome for CW and I would like to find a
> workable fix if possible.
>
> Idears?
>
> Thanks,
>
> Gary
> KA1J
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|