[Elecraft] KPA500 on AM...

[K9MA]

Isn't peak power for AM 4 times the average (carrier) power?

73,

Scott K9MA


On 1/23/2020 18:10, Don Wilhelm wrote:
> John,
>
> The KPA500 is rated for 500 watts PEP.
> With AM, that is 250 watts carrier, and 250 watts of sideband energy 
> (125 watts for each sideband).  So your "talk power" is 125 watts, 
> compared to 500 watts SSB.
>
> Note that is for 10 minutes transmit with a 5 minute receive period.  
> If you are "long winded" and want to exceed that 10 minutes keydown, 
> you should reduce the power.
>
> See the specifications.  If you want to exceed the specification 
> limits, you do so at your own peril, although the KPA500 has means to 
> protect itself.
>
> 73,
> Don W3FPR
>
>
> On 1/19/2020 12:43 PM, Macy monkeys wrote:
>>
>> One more question then I'll go back into hibernation. What is 
>> considered a safe drive level for the KPA500 when operating AM? I 
>> haven't tried it yet but I imagine the cooling fan goes into jet 
>> takeoff mode.
>>
>> Thanks, John K7FD
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-- 
Scott  K9MA

k9ma at sdellington.us