The Yaesu YS-500 is a versatile Ham radio VHF UHF SWR power meter wattmeter designed for Yaesu brand radios. This meter offers accurate readings of power output and SWR levels for UHF bands, making it a must-have accessory for radio enthusiasts looking to optimize their performance. The universal compatibility of this model ensures it can be used with a variety of Yaesu radios, making it a valuable tool for hams looking to fine-tune their gear for optimal performance.