Condition: 100% Brand New_x000D_Item Type: Magnetic Field Probe_x000D_Material: Printed Circuit Board_x000D_Working Frequency: 9K-3G_x000D_Connector: SMA female (outer tooth inner hole)_x000D_Antenna Head Size: Approx. 5cm / 2in_x000D_When using, the printed circuit board should not be touched by hands. 1The printed circuit board adopts 1.6mm thick double?sided plates, 1.5oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents. 2Phase noise and spectrum components can be combined with a low noise preamplifier for measurement. 3Helps locate and identify potential sources of interference within the building blocks of electronic components. 4Working frequency is 9K?3G, connector is SMA female. When using, the printed circuit board should not be touched by hands. 5There are 2pcs probes, can meet your use and replacement needs, convenient and practical.2 x Magnetic Field Antenna