The LNA 6900 is a low noise amplifier with 25 dB of gain covering the nominal frequency range 9 kHz to 2 GHz and can be used up to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a ‘noise figure’, which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
| Parameter | Value |
|---|---|
| Frequency range | 9 kHz to 2 GHz (nominal range) 9 kHz to 4 GHz (utilizable range) |
| Gain | typ. 25 dB |
| Gain flatness | +0.5 / -3 dB |
| RF-Input | N – female, 50 Ω |
| RF-Output | N – male, 50 Ω |
