[Elecraft] KPA1500 wattmeter adjustment

[Lou Mecseri]

Unless you are QRP (5 W) or QRO (1.5Kw) what difference a 10% or more 
calibration  error makes?.

Our hobby equipment are not laboratory grade instruments.

Just curious.

73, Lou  KE1F

On 2/6/2022 17:09, Bob McGraw wrote:
> 'Twas said "a man with one watch always knows the time.  A man with 3 
> or 4 watches is never quite sure of the time.".
>
> I just recently went through power calibrations on my K3S and my 
> KPA500.  All now agree with the power meter reference I used. Also, 
> this was done using a known 50.5 ohm dummy load.  On the antennas, 
> even though SWR is indicated 1.1:1, there will be differences due to 
> difference line complex impedance's.
>
> 73
>
> Bob, K4TAX
>
>
> On 2/6/2022 9:51 AM, elecraft-request at mailman.qth.net wrote:
>> Message: 15
>> Date: Sat, 5 Feb 2022 14:53:59 -0600
>> From: Ronnie Hull<w5sum at comcast.net>
>> To: Dick Dievendorff<dick at elecraft.com>
>> Cc:Elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] KPA1500 wattmeter adjustment
>> Message-ID:<BEE49DCD-B7EA-4DA5-89E6-35F933166F77 at comcast.net>
>> Content-Type: text/plain; charset=utf-8
>>
>> Lucky your that close! My K3, P:, Lp100 and kpa1500 are all wayyyy 
>> different. I accept the LPA100 as being correct!
>>
>> Ron W5SUM
>
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