K3/KX3 and Bluetooth Headphones

[Phil Hystad-3]

Has anyone found or used an adaptor of sorts to join Bluetooth headphones with audio from a K3/KX3 (or, whatever).

If so, did you buy a device, what kind, where, how much?

Thanks,

73, phil, K7PEH


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[Phil Hystad-3]

Bob,

Thanks for the quick reply.  I actually already have a pair of Bluetooth earbuds (Plantronics GO2) that I use with iPhone and iPad (listening and watching Physics lectures).

So, the transmitter is the key thing I am looking for and was hoping that there would be recommendations for the best available.  I am not an audio expert but I am thinking if there is a great Bluetooth transmitter designed for top-notch stereo equipment that it should suffice as great for the K3/KX3.  One mystery that I did not know much about though was audio output of these devices and the driving voltage needed for the Bluetooth transmitters on the market.  In particular headphone output on the KX3.

73, phil, K7PEH


On May 31, 2014, at 9:01 AM, Bob W7AVK <[hidden email]> wrote:

> Phil - Have a set of Costco hearing aids which includes a Bluetooth transmitter.  Originally designed to be used with TVs or other audio devices I just connected it to the LINE OUT of the K3.   The system worked great.   I could turn the K3 audio to zero and yet hear the channel while working at my bench across the room.
>
> Check Ebay and Amazon as both have Bluetooth headphones that should work.   Only problem I found was making sure to charge the batteries.
>
> Good luck
>
> 73  Bob  W7AVK
>
>
> On 5/31/2014 8:51 AM, Phil Hystad wrote:
>> Has anyone found or used an adaptor of sorts to join Bluetooth headphones with audio from a K3/KX3 (or, whatever).
>>
>> If so, did you buy a device, what kind, where, how much?
>>
>> Thanks,
>>
>> 73, phil, K7PEH
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
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>

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[Mark Newbold]

Be aware that bluetooth audio is useless for CW work. There's too much latency to use it with a
paddle. The sidetone you hear in the bluetooth headset is out of sync with the keying.

--Mark

--
Mark Newbold K7NEW
Sequim, Washington, USA
http://dogfeathers.com

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[Dave G.-2]

Mark,

Latency on this unit is about ~100msec..
With my QRS code it'll do the job -- I hope...

But it'll do just fine for me to be able to monitor while away from
the rig doing chores --

"Lonesome George"  :-)..

Dave G  KK7SS
Richland, WA

> Be aware that bluetooth audio is useless for CW work. There's too much
> latency to use it with a paddle. The sidetone you hear in the bluetooth
> headset is out of sync with the keying.
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[Bob N3MNT]

I purchased a Bluetooth transmitter for use with sound system and decided to try it on my KX3.  Works OK for SSB, but absolutely unusable for CW as mentioned the latency is so bad I had to disconnect it to send.