Additional Features: Frequency range: 9 kHz to 3.0 GHz 8590-series programming code compatibility Multiformat RF power measurement suite Four-millisecond RF sweep time ±1.1 dB overall amplitude accuracy Fully synthesized design Large, high-resolution, color VGA display Rugged, weather-resistant package 100 Hz to 5 MHz RBW, 100 Hz to 300 Hz optional +7.5 dBm TOI 5 minute warm-up to guaranteed measurement accuracy Narrow resolution bandwidth, 8590 series code compatibility, or 50 ohm tracking generator Fast delivery and favorably priced SCPI programming and IVI COM driver support Built-in help button The Agilent E4403B portable spectrum analyzer provides basic spectrum analysis, with the speed and accuracy you need. As the lowest cost ESA option, these basic analyzers are ideal for cost conscious bench-top or manufacturing environments.