The Aaronia UBBV910 External Low Noise Pre-amp 9 kHz - 6 GHz features internal batteries (with typical run-time of 3-4 hours) and can be used anywhere a high gain, low noise amp is called for; digging out those weak shortwave signals or refreshing an older spectrum analyzer. The UBBV910 BPA offers a frequency range of 9 kHz to 6 GHz with an ultra low noise of 0.4dB (typ.). This pre-amp is compatible with any brand of spectrum analyzer, but is capable of mounting directly onto Aaronia RF and EMC Spectrum Analyzers for easy equipment integration. The UBBV 910 achieves excellent noise figure performance, enabling the combination of very wide band performance and flat gain.