[Elecraft] [KPA1500] Input Power
Dean L
dean.k2ww at gmail.com
Fri May 12 14:44:49 EDT 2017
Hopefully your assumptions are off track-
Sure would be nice addition to the kx3
73 all
Dean
K2WW
On May 12, 2017 9:17 AM, "David Woolley" <forums at david-woolley.me.uk> wrote:
> Using a pad would be bad design, as simply increasing the level of
> negative feedback would help reduce distortion. The only way one could
> achieve a repeatable gain close to 15dB would be with negative feedback.
>
> Moreover, I assume it is an FCC condition that modification by the end not
> be easy. You can assume that CB users wanting to use illegal powers have
> access to soldering irons.
>
> Also, I would assume that the design gain is actually less than 15dB, to
> allow for component tolerances.
>
> --
> David Woolley K2 06123
>
> On 12/05/17 02:43, Dr. William J. Schmidt wrote:
>
>> All of those popular devices have gain more than 15 dB... so there is a
>> pad in the amp to keep the gain at 15 dB. One would think that a "tweak"
>> will evolve to modify the pad (and possibly the firmware) to eliminate this
>> bothersome limit.
>>
>
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