[hpsdr] Predistortion and different types of amplifiers?

[Lyle Johnson]

John,

I am not sure what the rf sampler looks like, but you can tap the RF 
from the KXPA100 PA to the KXPA100 ATU at the P8<->J8 interface in the 
board stack.

Pins 1-4 are the RF, pins 5-6 are ground.

73,

Lyle KK7P

> ***** High Performance Software Defined Radio Discussion List *****
>
> I noticed that the documentation shows that the rf sampler should be 
> connected between the power amp output and the antenna tuner. In my 
> case I'd like to try seeing what PureSignal can do with an Elecraft 
> KXPA100 amplifier. However, the amp has the antenna tuner built into 
> it. What effect will having the antenna tuner in the path have? I can 
> easily believe I would need to recalibrate each time the tuner changes 
> its settings.
>
> Thanks,
>
> John
> AC0ZG


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