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RF noise in Chinese Ammeter

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fjpompeo

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Dear sirs,

I'm trying to install in my linear power supply a Chinese Ammeter the one that has a Voltmeter and an Ammeter in the same display and uses negative rail to measure current. I have installed and with my Icom IC-V8000 in Rx mode OK but when in Tx the Ammeter looks like crazy I think that need to install RF choques with by pass ceramic capacitors in the wires red. yellow and black but I just don't know how??

Please take a look at the attached picture my Ammeter is exactly that way.

73,

Fernando - Call sign PU2PLL - Brazil
 

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  • Chinese DC Digital Voltmeter & Ammeter negative rail.jpg
    Chinese DC Digital Voltmeter & Ammeter negative rail.jpg
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