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
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