[Elecraft] OT: Need Recommendations for Powered Speaker for KX3 (WU6R)

Jim Brown jim at audiosystemsgroup.com
Sat Dec 22 18:03:00 EST 2018


On 12/22/2018 2:08 PM, Bob McGraw K4TAX wrote:
> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.

Powered speakers are historically very RFI susceptible, even high priced 
ones made for pro use and for the high futility world. I would also be 
quite concerned about RF noise produced by their power supplies, which 
are almost all switchers.

73, Jim



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