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Old 19-Mar-2017, 11:50 PM   #7
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,942
FWIW, I tested the KT500 in my lab a while back. My conclusion was that it was a significant disappointment in that the dual-stage design caused a severe loss of performance if the gain control was even touched to reduce total gain. If it was left alone, the amp overloaded very easily.

There are better options.

I did test a KT200 for gain and noise figure about 5 years ago before I had overload test capability. It was very quiet (around 1 dB), as I recall, although not quite as quiet as advertised. Precise measurement of such low noise figures is extraordinarily difficult with tiny errors of several tenths of a dB almost impossible to avoid.
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Last edited by ADTech; 20-Mar-2017 at 12:22 PM.
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