[Elecraft] KPA-500 with Portable Generator

[Jack Brindle]

The KPA500 does quite well with generators, especially the Honda family. These days it is the amplifier of choice for many DXpeditions who’s only power is provided by generators.

Since the KPA500 has a linear supply, it is not troubled as much by modified sine wave generators and investors as those using a switching supply.

73!
Jack, W6FB


> On Mar 7, 2019, at 5:58 PM, Mark Forsyth <vk3zmf at outlook.com> wrote:
> 
> That'd probably be fine.
> 
> The el-cheapo generators I refer to usually specify "modified sine wave" output which when looked at on a CRO looks more like a square wave with slightly rounded corners. Some or even most switch mode power supplies can cope quite badly with a wave form that's more square than sine.
> 
> 
> Cheers,
> Mark F...
> VK3ZMF / VK3KW
> KX3 with the lot # 1675
> KXPA100 # 530
> PX3 # 233
> 
> 
> 
>> -----Original Message-----
>> From: Bob McGraw K4TAX <rmcgraw at blomand.net>
>> Sent: Friday, March 08, 2019 12:35 PM
>> To: Mark Forsyth <vk3zmf at outlook.com>
>> Subject: Re: [Elecraft] KPA-500 with Portable Generator
>> 
>> Mark:
>> 
>> What would be the acceptable distortion limits for good vs. not so good
>> inverter generator?   My conventional constant speed generator runs about
>> 3% THD.  I recall the AC line from the utility is about the same.
>> 
>> 73
>> 
>> Bob, K4TAX
>> 
>> 
>> On 3/7/2019 7:22 PM, Mark Forsyth wrote:
>>> If you're thinking of using a generator at the cheaper end of the scale make
>> sure that its output is pure sine wave and NOT modified sine wave.
>>> 
>>> 
>>> Cheers,
>>> Mark F...
>>> VK3ZMF / VK3KW
>>> KX3 with the lot # 1675
>>> KXPA100 # 530
>>> PX3 # 233
>>> 
>>> 
>>> 
>>>> -----Original Message-----
>>>> From: elecraft-bounces at mailman.qth.net <elecraft-
>>>> bounces at mailman.qth.net> On Behalf Of Raymond Sills via Elecraft
>>>> Sent: Friday, March 08, 2019 7:58 AM
>>>> To: elecraft at mailman.qth.net
>>>> Subject: Re: [Elecraft] KPA-500 with Portable Generator
>>>> 
>>>> Honda generators are usually pretty good.. but nothing is perfect.
>>>> Leaking fuel is a big red flag.
>>>> There's always that Harbor Freight clone... which ought to do the
>>>> job... and presumably is not affected by a fuel leak.
>>>> 73 de RayK2ULRKX3 #211
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: John Evans <john.evans.n0hj at gmail.com>
>>>> To: elecraft <elecraft at mailman.qth.net>
>>>> Sent: Thu, Mar 7, 2019 2:44 pm
>>>> Subject: Re: [Elecraft] KPA-500 with Portable Generator
>>>> 
>>>> Honda just issued a stop sell order for the 2200 due to some hardware
>> issues.
>>>> 
>>>> https://rvdailyreport.com/industry/honda-issues-stop-sell-order-for-
>>>> eu2200i-generators/?fbclid=IwAR0e810z_ppbrXdUdY6egI8F-
>>>> MvVtSTwZE_cDQq9ILLMEZPUT96P4J8E5_8
>>>> 
>>>> 
>>>> On Thu, Mar 7, 2019 at 12:29 PM Bob McGraw K4TAX
>>>> <rmcgraw at blomand.net>
>>>> wrote:
>>>> 
>>>>> The Honda EU2200i will handle the KPA500 quite well and provide
>>>>> power for other items.    ...
>>>> 
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