Re: K3 144mhz power - 10 watts not a problem

Posted by K7TV on May 17, 2009; 3:41pm
URL: http://elecraft.85.s1.nabble.com/K3-144mhz-power-tp2892141p2918148.html

Exactly. On 144 the weak signals are so weak that TX cleanness as well as RX
dynamic range become a very difficult problems. You want a minimum number of
TX stages to mess up the signal, and minimum phase noise. Most solid state
amp's that might be available in the shack may not be clean enough to drive
the big one. Hmmm.... years ago I was looking at a 144 legal limit amp
project described in the 1988 ARRL Handbook. It uses a tetrode and produces
full output with just 10W in. That one is now back on my list of dreams....

73,
Erik K7TV

----- Original Message -----
From: "Mike Harris" <[hidden email]>
To: "Elecraft Reflector" <[hidden email]>
Sent: Sunday, May 17, 2009 8:26 AM
Subject: Re: [Elecraft] K3 144mhz power - 10 watts not a problem

> Cascading IPs maybe if you're running an intermediate amp to drive the big
> one.
>
> Regards,
>
> Mike VP8NO
>
> ----- Original Message -----
> From: "Jim Miller KG0KP" <[hidden email]>
> To: "Elecraft Reflector" <[hidden email]>
> Sent: Sunday, May 17, 2009 12:33 AM
> Subject: Re: [Elecraft] K3 144mhz power - 10 watts not a problem
>
>
> |I don't see 10 watts as a problem.  How many 2 meter amps do you have on
> the

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