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by Github
Sun Jan 28, 2018 6:44 pm
Forum: Off-Topic
Topic: What are we actually doing when increasing the gain?
Replies: 6
Views: 4553

What are we actually doing when increasing the gain?

I'm totally confused by signal amplifiers. When I search around, I know that amplifiers inside or outside an rtl-sdr amplify both noise and signals. But when you decrease the RF gain to zero, you get nothing, when you increase the gain, you begin to see something after a certain level of gain. But a...