Question: what is the difference between rg213 and rg213/u?
Answer: RG-213/U is a very flexible, low loss coaxial cable which is commonly terminated with N Connector or UHF connector for general HF and VHF use. ... RG213 Typically lower loss than RG58, slightly heavier and allows 5,000 volts difference between the center conductor and the shield, compared to 4,000 for RG8.