The standing wave bridge is hard and wear-resistant, which has long service time. The standing wave bridge features fine workmanship, allowing for stable performance. Made of metal and plastic, the standing wave bridge is hard and durable to use. The length of the standing wave bridge is 4.5cm and width is 9cm. The standing wave bridge can be used to measure through mode filters, amplifiers and reflection mode antennas, impedance, inductance, capacitance and impedance matching. It can be used with for HiQSDR or SDR transceivers, N2ADR software and NWT series USB RF analyzers. Item Name: Standing Wave Bridge Material: Plastic, Metal Color: Blue Working Frequency: 0.1-3000MHZ Return Loss: 35dB Connector: SMA Features: High Performance, Shock-proof, Indeformable Size Details: 4.5cm x 9cm/1.77" x 3.54" (Approx.) Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. Package Includes: 1 x Standing Wave Bridge(Others Not Included)