amplifiers
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| amplifiers [2024/10/04 17:52] – created river | amplifiers [2024/10/04 21:08] (current) – river | ||
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| + | ===== From the listing ===== | ||
| Amplifier: | Amplifier: | ||
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| When the potentiometer is turned clockwise to the limit, the gain is 11dB. | When the potentiometer is turned clockwise to the limit, the gain is 11dB. | ||
| + | ===== Testing ===== | ||
| + | |||
| + | I measured the gain at 869.075 MHz, on receive with 20dB attenuator, so -15dBm in, as 12.2dB. | ||
| + | With 10dB atten. (-5dBm in), gain 12.4dB. | ||
| + | 60dB atten, (-55dBm in), gain 12.7dB. | ||
| + | |||
| + | Tried with VNA output at -4dB, result with 60dB atten same within noise. Maybe 0.1dB less gain. | ||
| + | |||
| + | Didn't test on TX. | ||
amplifiers.1728064372.txt.gz · Last modified: 2024/10/04 17:52 by river