[Elecraft] Advice!

[Grant Youngman]

That should actually about 25% carrier. 

125-150 watts carrier -  500-600w PEP AM.  Shouldn't be any problem for the KPA-500.  Presuming one doesn't make an hour long old buzzard transmission. 


Sent from my iPhone

On Jul 30, 2011, at 2:24 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Phil,
> 
> AM with its 50% power carrier and sidebands that change in amplitude 
> should present a less harsh situation than RTTY which is 100% duty 
> cycle.  There have been reports of running RTTY for an extended time 
> with no harm.  But the specification says 500 watts with 10 minutes key 
> down and 5 minutes standby.  It should do at least that well with AM.
> 
> The KPA500 has temperature alarms should it get too hot, so it should 
> "take care of itself".
> 
> 73,
> Don W3FPR
> 
> On 7/30/2011 2:49 PM, Phil LaMarche wrote:
>> When running the KPA500 on AM, it there any time limit before unkeying?
>> While operating, the fan comes on and then it kicks into another speed.
>> 
>> 
>> 
>> Thanks
>> 
>> 
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