[Elecraft] K3 power in RTTY

Bob Tellefsen n6wg at comcast.net
Mon Dec 22 18:16:34 EST 2008


Hi Julian
Since I'll be operating QRP at 5w,
I doubt the PA will be stressed.
GL and 73
Bob N6WG

----- Original Message ----- 
From: "Julian, G4ILO" <julian.g4ilo at gmail.com>
To: <elecraft at mailman.qth.net>
Sent: Monday, December 22, 2008 7:20 AM
Subject: Re: [Elecraft] K3 power in RTTY


>
>
>
> Bob Tellefsen wrote:
>>
>> I understand the 100w version has to watch its power level
>> when used in high duty cycle modes.
>>
>> Does anyone know about the 10w version?  I'll be doing
>> RTTY with my K3 at 5w.  I assume that is low enough for
>> the 10w PA to get along fine, but I'd like to know for sure.
>> Couldn't find a mention in the manual.
>>
>>
>
> Actually I thought the 100W version was rated at full power key down for 
> 10
> minutes. Personally I wouldn't try it, but I'm sure that's what the spec
> says.
>
> I haven't seen a similar spec for the 10W version. I asked a similar
> question a few months ago but never received a reply. It's actually 
> relevant
> even for those who have the PA if they should decide to operaste at a 
> power
> of 10W, because the PA only kicks in at 12W, so at 10W the small PA is 
> doing
> all the work. Since it only has the bottom of the case for a heatsink and 
> no
> fan assistance at all, I'm not at all sure that it could handle 10W key 
> down
> for 10 minutes, but I'm not going to try to find out the hard way.
>
> -----
> Julian, G4ILO. K2 #392  K3 #222.
> http://www.g4ilo.com/ G4ILO's Shack   http://www.ham-directory.com/ Ham
> Directory    http://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3
> -- 
> View this message in context: 
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>
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