2 position coaxial switch with SO-239 connectors, good through 500 MHz. Precision machined switch shaft and quadrant rotating mechanism for more accurate and stable switching performance. High strength, low resistance silver bearing solder. Excellent housing durability and abrasion resistance with powder coat finish. Brass ARC-PLUG (tm) housing. Low loss micro-strip cavity design, positive detent switching, master antenna ground function, front panel removable ARC-PLUG (tm) surge protection module and excellent HF thru UHF performance.