[Elecraft] Headphones (Again!)

[John Reilly]

I recently purchased a Bose QC-45. I used it for about 5 minutes in a 
CWops contest, and got RF in the left headphone. I disconnected it, and 
returned to my Bose QC-35's. The QC-45's have been returned to Amazon.

I had a similar problem earlier in the year with the Bose 700 
headphones. I tried various toroids, but never could isolate them from 
RF (particularly a problem on 40m). Obviously, this is is not something 
Bose is concerned with. Fortunately, the QC-35 gamer headphones work 
well. With all three headphones, I used the headphone cable (not 
Bluetooth -> delay problem). FWIW, I like the Bose noise cancelling 
because it does a good job attenuating KPA1500 fan noise.

Has anyone used the Sony WH-1000XM3 headphones? How do they work in an 
RF environment?
   - 73, John, N0TA