I have an EU3000is. Purchased about 20 years ago. It's both RF and AF quiet.
I base this upon non-scientific observations. It went to about 8 Field Days
(HF) and 15 VHF Mountaintopping events (VHF - Microwave). They were both
multi-operator events and had more than one receiver running at a time. No one
noticed anything.
The SMPS (converter) in my Travel Trailer does make RFI. Fortunately it falls
off quickly with distance.
Bob
-----Original Message-----
From: RFI [mailto:rfi-bounces+n2scj-lists=outlook.com@contesting.com] On Behalf
Of Dave (NK7Z)
Sent: Saturday, July 16, 2022 2:30 PM
To: rfi@contesting.com
Subject: Re: [RFI] Portable Generator Noise
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@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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>>> RFI@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>
>>
>
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