amplifiers
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
| amplifiers [2024/10/04 17:52] – created river | amplifiers [2024/10/04 21:08] (current) – river | ||
|---|---|---|---|
| Line 8: | Line 8: | ||
| [[https:// | [[https:// | ||
| + | ===== From the listing ===== | ||
| Amplifier: | Amplifier: | ||
| Line 36: | Line 37: | ||
| 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: by river