[Elecraft] KPA-1500 power reading ?

[Ed Stallman]

Jim, using 4ft of low loss Davis RF Bury Flex between LPA and KPA , 6m 
is the one band with the biggest difference , KPA1500 reading 125 to 150 
watts less . I've decided with the LP-100A in better line of site , I'm 
going with it .

Ed N5DG

On 2/5/2021 6:52 PM, Jim Brown wrote:
> On 2/5/2021 10:22 AM, Ed Stallman wrote:
>> I'm using the LP-100A watt meter and comparing it with the KPA-1500 
>> they both read close enough 10 to 160 . On 6m I'm seeing a bigger 
>> spread  with the LP-100A reading 1500w the KPA-1500 is showing 1375w .
>
> I also have an LP100A inline between my amp and my antenna switching. 
> What coax is between the amp and the LP100A, and how long is it? The 
> loss in this cable increases with frequency. Also, I believe that the 
> KPA1500 reads power on the amplifier side of the tuner, and it's not 
> lossless. I nearly always see a fractional dB between them.
>
> 73, Jim K9YC
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ed.n5dg at gmail.com