[Elecraft] Heil Pro 7 headset with KX3 - RF feedback?

[Jim Brown]

On 6/18/2021 12:04 PM, Rick NK7I wrote:
> Has anyone used rx audio via Bluetooth into their hearing aids? Any issues?

The important (and killer) issue with Bluetooth is latency when you try 
to run CW. The delay makes it impossible to send with any form of bug, 
paddle, or straight key. The delay is also be problematic if you try to 
monitor yourself on SSB. When I was doing live sound for large crowds 
outdoors, I heard very professional announcers slow down and stop 
talking when they heard themselves coming back through the system 100 
msec late.

There are (at least) two forms of BlueTooth. The one for shorter 
distances (lower power) has less latency than the other. Both would be a 
killer for CW, but the shorter one might not be too bad for monitoring 
our own transmission on SSB.

73, Jim K9YC