Key benefits — why you need this spectrum analyzer Detect weak and critical signals: sensitivity down to -102 dBm ensures you capture low-level transmissions and intermittent interference that cheaper tools miss. Adapt to any signal environment: choose from six manually selectable resolution filters (3, 10, 30, 100, 300, 600 kHz) or let the unit select from 57 automatically adjustable filters for optimal resolution and dynamic range. Speed up troubleshooting: real-time scanning at over 1000 points per second and selectable 145 or 290 measurement points deliver fast, detailed spectrum views so you find problems faster. Reliable in the field or the lab: metal + ABS construction, enhanced ESD protection on ports and a linear power supply (V0.3.1_E upgraded version) reduce noise and increase durability for consistent results. What it does and how it solves problems High-resolution analysis: manually selectable and automatic filter options let you focus on narrowband signals or monitor broader bands without changing hardware, simplifying tasks like interference hunting and signal characterization. Fast, accurate scans: >1000 points/sec and automatic scan-point optimization provide smoother traces and better peak detection, reducing the need for repeated measurements. Flexible input handling: covers 100 kHz to 350 MHz with 50 Ω input impedance and attenuation selectable manually or automatically in 1 dB steps from 0 dB to 31 dB — so it works with a wide range of transmitters, antennas and test setups. Easy operation: resistive touchscreen plus traditional switch controls and a serial USB port enable quick setup, data capture and integration with other tools. Key specifications and attributes Resolution filters: manual 3 / 10 / 30 / 100 / 300 / 600 kHz; 57 auto-adjustable filters Sensitivity: down to -102 dBm Scan performance: >1000 points per second (at highest resolution) Measurement points: selectable 145 or 290 points Display: 2.8-inch resistive touchscreen, 320 x 240 pixels Frequency range: 100 kHz to 350 MHz Input impedance: 50 Ω Attenuation: 0–31 dB in 1 dB increments (manual and automatic) Connectivity: serial USB port Construction: metal + ABS housing Protection and power: enhanced ESD protection on ports, linear power supply (firmware/hardware version V0.3.1_E) Modes and reliability: four input/output modes, faulty suppression for stable, repeatable measurements Practical use scenarios Antenna and receiver troubleshooting: quickly identify weak carriers, harmonics, or interference across 100 kHz–350 MHz while adjusting attenuation and filter settings to reveal hidden signals. Field service and installation: robust construction, ESD protection and fast scan speeds let technicians validate RF performance and find intermittent interference on site without returning to the lab. Education and bench testing: the clear 2.8-inch display, selectable measurement points and USB connectivity make it suitable for classroom demonstrations and small lab setups where visibility and data capture are important. Why this model stands out Combines high sensitivity, selectable high-resolution filtering and fast scanning in a compact package. Upgraded V0.3.1_E hardware adds ESD protection and a linear power supply to reduce measurement noise and improve long-term reliability. Intuitive controls (touchscreen + switches) plus USB connectivity let both hobbyists and professionals integrate it into existing workflows quickly. What you get A portable spectrum analyzer tuned for accurate, repeatable measurements across 100 kHz–350 MHz with flexible filtering, rapid scanning, field-ready construction and the protection and power design improvements of version V0.3.1_E.