shop/bilder/advu4941.jpegFrequency range from 9 kHz to 2.2 GHz, 1 kHz to 3 MHz resolution, ultra-compact and light weight - 15 lbs. Three-way Power Supply - AC Line, External DC and Optional Battery Pack, 6-inch TFT Color LCD Display, Two PCMCIA Memory Card Slots, Switchable Preamp for High-sensitivity Measurements, Built-in Adjacent Channel Power, Occupied Bandwidth and Channel Power Measurements, Built-in quasi-peak detector and EMC filters.