[Elecraft] Second Try--Re: K3: CM500 vs. SB40

[Jim Brown]

On 3/22/2018 11:05 AM, Edward R Cole wrote:
> I briefly mentioned that I have a "blue-tooth appliance" (without 
> explanation what it does).

For aids that include a telecoil (magnetic transducer), there are much 
less expensive neck loops that plug into a headphone jack. For RF-based 
hearing impaired systems that I designed and specified for public 
spaces, I specified the Comtek NTC-102 neck loop. I see it listed at $95 
from internet vendors. It has the obvious advantage of zero latency.

This is a relatively rugged professional product from a company based in 
Salt Lake City. It's something that could easily be built -- the only 
unknown is whether the loop is a single turn or multiple turns, and this 
could easily be learned by winding one and trying it.

73, Jim K9YC