Posted by
k.igor on
Dec 22, 2010; 6:29am
URL: http://elecraft.85.s1.nabble.com/100-Watts-or-500-Watts-tp5853336p5858425.html
Is there any technical merit behind FCC's 15dB amp gain limitation? I saw
commercial RF amplifiers with gains up to 30dB, obviously approved by FCC. I
could understand the limitation for tube amplifiers, the characteristics of
some amp tubes would make high gain unstable. But for solid state amplifiers
the limitation looks strange to say the least. Maybe it's time to ask FCC to
reconsider this. Any ARRL lawyers out there?
73,
Igor, N1YX
-----Original Message-----
From:
[hidden email]
[mailto:
[hidden email]] On Behalf Of Don Wilhelm
Sent: Monday, December 20, 2010 3:31 PM
To:
[hidden email]
Cc:
[hidden email];
[hidden email]
Subject: Re: [Elecraft] 100 Watts or 500 Watts
Bill,
It is not an Elecraft choice.
While you could do that as an individual, commercial products (sold in
the US) must meet the FCC requirement of a 15 dB maximum gain That
limits the maximum power gain to a factor of 31.62 - 10 watts in gives
316.2 watts (at the most) output.
73,
Don W3FPR
On 12/20/2010 3:23 PM,
[hidden email] wrote:
> Why wouldn't Elecraft design the KPA500 to be driven to its rated output
by a K3/10 ?
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