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Re: [RFI] [EXTERNAL] Re: EMI-Free Vehicle Inverters

To: David Eckhardt <davearea51a@gmail.com>
Subject: Re: [RFI] [EXTERNAL] Re: EMI-Free Vehicle Inverters
From: David Klinect via RFI <rfi@contesting.com>
Reply-to: David Klinect <daklinect@aep.com>
Date: Tue, 24 Mar 2020 17:13:27 +0000
List-post: <mailto:rfi@contesting.com>
Thank you!  Will add that to my list of ones to learn more about………I suspect 
they make similar ones with higher power ratings.

Dave KA8MHW

From: David Eckhardt <davearea51a@gmail.com>
Sent: Tuesday, March 24, 2020 12:58 PM
To: David Klinect <daklinect@aep.com>
Cc: rfi@contesting.com
Subject: [EXTERNAL] Re: [RFI] EMI-Free Vehicle Inverters

This is an EXTERNAL email. STOP. THINK before you CLICK links or OPEN 
attachments. If suspicious please click the 'Report to Incidents' button in 
Outlook or forward to incidents@aep.com<mailto:incidents@aep.com> from a mobile 
device.

I know you're looking for a 1 kW unit, but I have the following I use camping 
and I must admit its pretty quiet, RFI wise:

          
https://www.amazon.com/Go-Power-GP-SW300-12-300-Watt-Inverter/dp/B001539BCE/ref=sr_1_29?keywords=true+sine+wave+power+inverter&qid=1585068577&sr=8-29<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.amazon.com_Go-2DPower-2DGP-2DSW300-2D12-2D300-2DWatt-2DInverter_dp_B001539BCE_ref-3Dsr-5F1-5F29-3Fkeywords-3Dtrue-2Bsine-2Bwave-2Bpower-2Binverter-26qid-3D1585068577-26sr-3D8-2D29&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=5sbCa3A98Man-4HZJmHlahpT0tdipMkWFucGHbSgMLE&m=9sl247UmjKnA0kSUDsFKsA52wiCs3beRiSlU0rc2reE&s=0iqXnz9OESpqbbJgnMkBqYEKT53tbrggCQZU323J3fE&e=>

W0LEV



On Tue, Mar 24, 2020 at 11:33 AM David Klinect via RFI 
<rfi@contesting.com<mailto:rfi@contesting.com>> wrote:
Thanks, Jim.  Not looking at any specific ham band..............would prefer 
that It be EMI-Free on all (or as much as possible) of the HF range.  Always 
appreciate your insights into these matters.......as well as your write-ups and 
tutorials.



Dave KA8MHW

------------------------------------------

On 3/23/2020 12:36 PM, David Eckhardt wrote:

> How much power (watts) are you shopping for?  I presume you are going from

> a 12 vdc system to a 120 vac/60 Hz system?



And on what band(s) does it need to be quiet?  Page 13 of the link below

details what we had to do to a GOOD unit to make it quiet enough to hear

weak signals on a Hamstick 3 ft away. The little clamps with no winding

(with ferrites, this counts as a single turn) are for VHF; those with

multiple turns are for the HF bands we were using mobile -- 15,20, 40.

Except for those single-turn clamps, all the ferrites are Fair-Rite #31.



http://k9yc.com/KillingReceiveNoise.pdf<https://urldefense.proofpoint.com/v2/url?u=http-3A__k9yc.com_KillingReceiveNoise.pdf&d=DwMFaQ&c=16VmlS4MonZN71XwTUYWYA&r=5sbCa3A98Man-4HZJmHlahpT0tdipMkWFucGHbSgMLE&m=9sl247UmjKnA0kSUDsFKsA52wiCs3beRiSlU0rc2reE&s=aJphnaQbkj7g6k05LVnYCBzkoZtpr0VnnFzI6xA9BrE&e=>



BTW -- we were unable to kill noise from a bigger unit in the same

product series of "pure sine-wave inverters."


73, Jim K9YC
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--
Dave - WØLEV
Just Let Darwin Work
Just Think
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