[RFI] mysterious voices, music come from house's walls

Jim Brown jim at audiosystemsgroup.com
Mon Feb 24 14:17:36 EST 2020


On 2/24/2020 7:28 AM, Mike & Becca Krzystyniak wrote:
> Back then we always heard the programming on the phone lines it worsened when it rained.

The carbon mics used in older phones were great RF detectors.

When I lived and worked in Chicago, I knew most of the engineers for the 
local stations. The Chief Engineer of WCFL told me it was a particularly 
tricky one to keep within FCC parameters, because it was a directional 
array composed of towers of different height and construction.

73, Jim K9YC


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