Posted by Julius Fazekas n2wn on Dec 12, 2009; 12:01am URL: http://elecraft.85.s1.nabble.com/150-watt-boots-for-160m-tp4151943p4154474.html
Hi Brian,
Was that in QEX? I seem to recall an article about this in the past couple of years. You are right all I wish to use it for is CW.
I know at least a few of the responders understand what I am trying to do and why. LP categories in 160m contests allow power levels to 150 watts. Most of the time 150 watts would buy one nothing, but it is worth having just a touch more umph if the conditions are marginal on the other end. I can't squeeze anything more significant out of my Tx antenna, if I was lucky maybe 1/2 db... maybe.
something under $300 in the way of a simple amp IS worth trying and may have been enough to have added 3 multipliers during ARRL160 because those guys couldn't quite pull me out. There's no downside to trying it.
Thanks for all the thoughtful answers. Don't think I'll mess with the K3 PA and I don't want to move into the HP category :o)
73,
Julius
n2wn
Brian Moran wrote
On 160, you could try a class-E amplifier; you're probably not going to use anything but CW.
--- On Fri, 12/11/09, Edward Dickinson, III <softblue@windstream.net> wrote:
> From: Edward Dickinson, III <softblue@windstream.net> > Subject: Re: [Elecraft] [K3] 150 watt "boots" for 160m
> To: elecraft@mailman.qth.net
> Date: Friday, December 11, 2009, 9:55 AM
>
> I am reminded of the recent sale item from Elecraft.
> The 2010 ARRL Handbook
> is to have a 250 Watt HF amp design in it. One ought
> to be able to drop the
> K3 output appropriately to drive it to 150 Watts.
>
>
> 73,
>
> Dick - KA5KKT
>
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