The UBBV broadband pre-amp is the answer to measuring weak signals, boosting probe and antenna gain, as well as many other needs. You can use the UBBV anywhere a high gain, low noise amp is called for- digging out those weak shortwave signals or putting new life into an analyzer, especially in the frequency range below 1GHz. The UBBV pre-amps offer battery or AC adapter operation (internal, chargeable LiPO battery), with 40dB broadband amplification at very low noise levels. Highly recommended for EMC and Pre-Compliance tests like EN55011, EN55022, EN50371 etc. Attaches directly to any SPECTRAN Analyzer and will work with any other brand of Spectrum Analyzers. Comes in two models with ranges of 1 MHz-1 GHz (UBBV1) and another from 1 kHz-10 GHz (UBBV2).