Key benefits Durable, protective housing: Black, impact-resistant enclosure protects the analyzer during transport and field use. Portable and pocketable: Compact size makes it easy to carry to job sites, install locations, or store in a toolbox or pocket. Ready to use with standard power: Runs from an external DC 12–14V supply at 500 mA using a 2.1 mm center-pin connector—plug in and start testing. Flexible frequency control: Wide usable measuring range of 1.0 to 9.99 with configurable step sizes (100 Hz, 1 kHz, 10 kHz, 100 kHz) for precise tuning and troubleshooting. Simple operation: Intuitive control buttons let you select operating mode, band, and advanced functions without a steep learning curve. What it does and why you need it Measures antenna behavior across a broad range (1.0 to 9.99) so you can evaluate and tune antennas, check feedline and matching network performance, and verify installation results. Configurable frequency step sizes enable fine resolution when trimming or characterizing antennas and coarser steps for faster scans. Lightweight, rugged design reduces the risk of damage during transport and makes on-site testing practical and efficient. Key attributes Power: External DC 12–14V, 500 mA, 2.1 mm center-pin connector. Measuring range: 1.0 to 9.99 (as provided). Step size options: 100 Hz, 1 kHz, 10 kHz, 100 kHz (user-selectable). Controls: Simple tactile buttons for selecting operating mode, band, and advanced functions. Housing: Black, durable enclosure for protection and longevity. Size: Compact and easy to carry; pocket-friendly design. Practical use scenarios 1) Amateur radio antenna tuning: Bring the analyzer into the field to check SWR and resonance points, then use the selectable step sizes to fine-tune antenna length and matching components for best performance. 2) On-site installation and troubleshooting: Carry the analyzer to rooftop or tower installations to confirm antenna and feedline behavior, identify mismatches, and validate repairs before leaving the site. 3) Portable field testing: Use the unit during temporary or emergency deployments to quickly assess antenna systems, make adjustments, and ensure reliable communications under time-constrained conditions. What you get A compact, durable antenna analyzer that is easy to power and operate, with a wide usable range and selectable frequency steps to support precise tuning and rapid diagnostics. Note: Operates from an external DC supply (12–14V, 500 mA) with a 2.1 mm center-pin connector. Control buttons allow selection of operating mode, band, and advanced functions. Measuring range and step sizes are as specified above.