Additional Features: Frequency range: 9 kHz to 3 GHz Rugged MIL-STD-28800 Class 3 Compact and Lightweight Portable for installation and maintenance Frequency Counter with 1 Hz resolution Superior RF performance specifications Bright full-color screen visible in direct sunlight Remote Control Capability using SpectRe software (included) Enables near-real-time remote monitoring, control, and data collection Control measurement parameters on the fly and see results immediately The Anritsu MS2661C Portable Spectrum Analyzer is for signal analysis of radio and other equipment related to improving frequency usage efficiency, higher modulation, and digitalisation. The MS2661C has superior basic performance such as high C/N ratio, low distortion, and high frequency/level accuracies and is easy to operate.