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Notes by c3139767 | export

 nostr:npub1srpkt7pgfhpzw4e8tpsn2pu6csumkyp8n0r03788lykz9hfszu6ssfgqr5 chokes need to be as close ... 
 @e7b4518c How close is close enough? I put them right at the converter’s output, so maybe 30cm  of total cabling away 🤔 
 So I tried multiple chokes to remove the noise from this DC-DC buck-boost converter, but nothing helped. I still get S9 noise at multiples of the internal PWM frequency (12V Pb battery for testing). Do I need a large capacitor? 🤔
#HamRadio

https://mastodon.radio/system/media_attachments/files/111/023/930/473/780/832/original/93e05f1b3eb4038a.jpeg

https://mastodon.radio/system/media_attachments/files/111/023/930/551/760/313/original/77c8ba096f038bd3.jpeg