BK Precision 2640 2.0GHz Handheld RF Spectrum Analyzer

B&K Precision 2640 handheld 2.0 GHz RF Field Strength Meter with basic spectrum analyzer functionality — complete with all original accessories. Covers a wide 100 kHz to 2000 MHz range with a low -110 dBm noise floor for detecting weak signals — ideal for antenna alignment, signal coverage verification, interference detection, and telecom or broadcast field work. Features an LCD display, N-type RF input, RS-232C PC interface with software support, and runs on rechargeable Ni-MH batteries or the AC adapter. This model is discontinued and originally sold new for close to $2,000. Tested and powers on; core functions confirmed working. Uncalibrated and sold as-is for functionality — no calibration certificate included. Complete set includes: unit, antenna, AC adapter, carrying case, carrying strap, RS-232C cable, coaxial cable, N-BNC adapter, earphone, software CD, and user