[RFI] Portable Generator Noise

[Dave (NK7Z)]

Hi,
Anyone here using a Honda eu3000is?  Is it RFI quiet?

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 7/16/22 10:56, Steve Dyer via RFI wrote:
> Most inexpensive inverter gens are cheap for a reason.
> The Honda 2000 series is (still?) one of the few quiet inverters I have 
> been around during HF ops and the cost reflects it.
> 73,
> Steve
> 
> On 7/16/2022 10:19, David Eckhardt wrote:
>> " WEN 56235i Super Quiet 2350-Watt Portable Inverter Generator with Fuel
>> Shut Off, CARB Compliant, Ultra Lightweight, Black"
>>
>> The problem is in this statement.  Your "generator" is not just a
>> generator.  It is a "Portable *Inverter* Generator".  Likely, the 
>> generator
>> by itself is relatively quiet.  But the inverter is a switch mode power
>> supply.  ALL SMPSs are RFI sources!  You will find it extremely difficult
>> to tame this unit wrt RFI.
>>
>> Don't stress over "grounding".  It will have minimal to no effect.
>>
>> Dave - WØLEV
>>
>> On Sat, Jul 16, 2022 at 5:30 AM Mike Fatchett W0MU <w0mu at w0mu.com> wrote:
>>
>>> I purchased a small quiet off brand 1900 watt continuous generator with
>>> eco mode.  It generates a lot of rfi.  I used it at a POTA activation
>>> last weekend and it was tolerable by moving the antenna as far away from
>>> the generator as possible.   Putting it under heavier load did not seem
>>> to make any difference nor did decreasing the load.
>>>
>>> There is a ground lug on the unit but the forest service frowns on
>>> people pounding in ground rods.  Is there a more portable solution for a
>>> ground.  I have my doubts that it would change anything.  I should try
>>> hooking it up here at home and find out.
>>>
>>>
>>> WEN 56235i Super Quiet 2350-Watt Portable Inverter Generator with Fuel
>>> Shut Off, CARB Compliant, Ultra Lightweight, Black
>>>
>>>
>>> I did have some big clamp ons and I put them on the extension cord and
>>> that seemed to help some.  I could only get 2 to 3 turns through the
>>> clamp ons and I had two.  Maybe I need far more turns?  I did not the
>>> cabling handy to hookup directly to the car battery to see if the
>>> extension cord was the radiator or if it was all coming out of the
>>> generator.
>>>
>>> Has anyone had any luck quieting them down?
>>>
>>> W0MU
>>>
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>>
> 
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