[Elecraft] Advice!

[Phil LaMarche]

Many thanks for all the responses regarding AM operation.  I'm good to go
and am happy to use the K3 on AM, having gotten rid of my heavy metal.
Everyone have a great weekend.

Phil

Philip LaMarche
 
LaMarche Enterprises, Inc

Phil at LaMarcheEnterprises.com
www.LaMarcheEnterprises.com  
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 www.w9dvm.com
K3 # 1605
KPA500 # 029

 CCA 98-00827
CRA 1701
W9DVM
 


-----Original Message-----
From: Don Wilhelm [mailto:w3fpr at embarqmail.com] 
Sent: Saturday, July 30, 2011 3:25 PM
To: Phil LaMarche
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Advice!

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.
>
>
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> Thanks
>
>