Ferrite Tutorials Ferrite Mix Selection Ferrite Cross Reference Ferrite Toroid Tech Specs Ferrite Chatter Noise RF Toroid Calculator by VK3CPU Antenna Rotor RFI Solutions Store / Antenna Rotor RFI Solutions Antenna Rotor RFI Kit - fits all Wired Rotors up to 1/2" cable size Antenna Rotor RFI Kit - fits all Wired Rotors up to 1/2" cable size SKU RFI-Rotor $39.95 Buy Now Tutorials