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Author Topic: 150-600 Watt Pure Sine inverter reccomendations  (Read 2153 times)
KD0WHB
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Posts: 9




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« on: April 16, 2018, 09:33:27 AM »

I recently purchased a pure sine inverter from amazon at the following link:

https://www.amazon.com/gp/product/B0131GJ5X2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I used it when we operated 100% solar at the NM QSO party here in Socorro County. Unfortunately, the inverter was almost unusable, radiating hash through the air in addition to through the power cables.

Even when hooked up to a separate battery 10 feet away from our radio, the noise was swamped everywhere across the HF bands.

We ended up using a cheap modified sine inverter someone else brought, and it surprisingly had much better results! Only a few frequencies in the bands got swamped with this inverter versus every frequency on every band with the pure sine inverter.

I am asking on any recommendations for a pure sine inverter in the few hundred watt range. Something you have used without RFI problems.

Thanks so much for looking!
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KC2YSO
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Posts: 0




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« Reply #1 on: April 19, 2018, 04:29:03 AM »

Aimes Power is slightly expensive, but worth the money.

Built like a tank, and no noise. Check the specs.

https://www.aimscorp.net/12-Volt-Pure-Sine-Inverters/

73.
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K6AER
Member

Posts: 5316




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« Reply #2 on: April 19, 2018, 09:21:39 AM »

Have you heard about toroids? Your DC input and AC output needs to have the lines fed with 20 turns through a 3 inch type 43 mix toroid.

Also move your antenna away from the inverter. 150 feet should do it.
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K8BYP
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Posts: 256




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« Reply #3 on: April 19, 2018, 10:30:43 AM »

"pure sine wave 60 cycle power" is a different topic from "conducted and radiated RF emissions, which are what Certifying bodies like FCC regulate.

They dont care about 60 cycle freqs.

Adding RF suppression adds cost to a product.
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