RF Noise Source
26th August 2020
This is a tiny RF noise generator which can be purchased for just 17$.
The noise is generated by a reversed polarized diode and then it is amplified by three stages of INA-10386 MMIC amplifier. These are the 4pin round cases marked N10.
Bellow are some measurements that I've did with the spectrum analyzer.
This noise source outputs a respectable -48dBm for an entire 2GHz span. The spectrum output power is
P = Pavr + 10 log( BW / RBW ) = -48 + 10 log ( 2e9 / 1e6 ) = -15 dBm
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| Noise at 145MHz | Noise at 440MHz | Noise at 900MHz |
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| Noise at 1.2GHz | Noise at 1.8GHz | Noise at 2.4GHz |
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| Noise at 3.5GHz | Noise at 5GHz | Natural Noise Floor |
