1. **Accurate Testing Performance** Features reliable measurement accuracy with a 50Ω resistor error of only ±1Ω and a standing wave ratio (VSWR) error of ±0.1, delivering precise data for your shortwave radio communication and antenna tuning work within the 1-60MHz frequency range. 2. **Ready-to-Use with Simple Assembly** Comes with a fully soldered and tested main board, plus a completely assembled casing. No complex soldering or installation work is required—just install a 9.6V battery pack (not included) to start operating, saving your time and effort on setup. 3. **Practical Hardware Configuration** Equipped with an SL-16 (M-type) antenna connector for stable signal connection and round buttons for smooth, easy operation. The compact casing dimensions (150*90*40mm) and lightweight design (only 0.6kg) ensure convenient portability and storage for on-the-go or workshop use. 4. **Pre-wired for Convenience** Internal red and black power supply wires are pre-installed, eliminating the need for additional wiring preparation. Please note that basic wiring skills are recommended for optimal use; avoid purchasing if you are not comfortable with simple power connection operations. 5. **Essential Tool for Mechanics & Equipment Enthusiasts** Designed as a professional communication tool for shortwave radio hobbyists, mechanics, and equipment maintenance personnel. It is an auxiliary device for antenna debugging, power measurement, and radio system performance checking.