Maintenance Matters

April 2000 Issue

Radio Rack

Chasing down and eliminating snaps, crackles and pops in the audio system.


Snap crackle and pop. In this case, it isnít a breakfast food, but the distinctive electrical noise you hear in your headset. In the old days, before we knew how bad cabin noise was for your hearing, we didnít notice the crackling from the avionics over the background din.

But now, thanks to the wonders of noise-canceling headsets, we can hear the proverbial pin drop and we detect every burble and burp. In some airplanes, the static is almost unbearable while others have none.

The good news is electrical noise can be completely eliminated. The bad news is that it can be a costly exercise. Plus, there are no guarantees that the action you take to reduce static will be e...

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