Frequency range: 100 Hz-26.5 GHz Resolution bandwidth: 10 Hz to 3 MHz High input sensitivity: -145 dBm Memory card function BASIC controller equipped as standard Excellent Spectrum Purity: -110 dBc/Hz (10 kHz away away from carrier) Can sweep the complete bandwidth continuously and repeatedly Frequency counter with 1 Hz resolution A voice can be demodulated using an Internal Speaker Portable system employing a large CRT display Conforms to MIL-T-28800 standards and built to last The Advantest R3271 has excellent spectral purity, a resolution bandwidth of 10 Hz to 3 MHz, the ability to sweep the complete frequency range continuously and repeatedly and a built-in frequency range counter are just a few features that make this an exceptional value.