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.
Type |
Advertised range |
NF |
Gain peak |
OUTPUT TOI
(third order intercept)
|
1dB gain compression (output) |
ARR 1-30 |
1-30MHz |
5.43dB |
20.4dB@13MHz |
30.38dBm |
21.5dBm |
ARR GAsFET |
single band |
3.2dB |
26.4dB |
11.39dBm |
8.1dBm |
DXE RPA-1 |
200kHz-40MHz |
3.4dB |
17.3@5MHz |
43.04 dBm |
26dBm |
ICE 124A |
|
4.2dB |
|
14.05 dBm |
|
KD9SV |
160M/80M |
4.9dB |
|
14.02@full gain
0.14 dBm@12dB below full gain
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Note: These are measurements of a single new random sample that
appear to be working properly, with no noticeable defects in components or
wiring.
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