One of the reasons that I purchased the K3S was because it is capable of working the new 630 meter band. The power output is something less than 1 mw.
I kept thinking that there should be a commercial amplifier available sometime, to take this 1 mw signal and amplify it to a usable output.
However, what I'm beginning to realize is that with the FCC limitation of 13 db amplifier gain limit, it will never be available. It would take at LEAST 44 db of gain
to get to 25 watts!
I realize there is the article:
but this design is non-linear.
I know there are some LDMOS devices that have gains in the order of 26 db (BLF188XR for one) and I'm
wondering if there are any similar devices, somewhat lower power, that would take the K3S output to a
respectable RF output in more of a linear fashion.