Preamp HF 160 meter DX receiving summary

Preamp Summary

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When comparing low-band preamplifiers the important
parameter is almost always output TOI. 

Output third order intercept is a measurement standard of how well the
amplifier stands up to strong signals with creating new “phantom”
signals through unwanted mixing.

Note: These are measurements of a single new random sample that
appear to be working properly, with no noticeable defects in components or
wiring.