Just for information on why this is working 1: Ferrite cores: Ferrite cores with the power line looped through them increase the inductance along ther individual power lines, which blocks aUdio frecuency noise, impulse noise and RF from traveling down the power line along with the DC. Ferrite cores should be placed lberally on power lines in the KR. They are cheap nose reduction, with almost no weight penalty to concern yourself with.
2: Malfunctioning fuel pump (or any other electric motor): When an electric motor malfuncions in the sense that it is slowed or stopped (ie: "LOADED") but still ELECTRICLY functioning, it will draw more current than normal as it attempts to TRY to come up to its operating speed (starting current draw). This continuous excessive current loads down your electrical system, causing thre alternator to generate more noise. The electric motor of the pump itself will also generate noise which is transferred back along the power line AS WELL AS Radio Frequency noise which is radiated through the air (which can interfere with other aircraft flying in formation with you). Ensuring that your electical motors are all functioning well and up to capacity, and that the power connections are clean and secure will reduce this substantially. Congrats on your improved power system Dan. It's always the little things that cause so much trouble and are such a pleasent relief when they are addressed. Glenn Martin N1333A KR2 Biloxi, MS
