Amazon.com: RF Converter, to RF Adapter Box Support 480I 480P 576I 576P 720P 720I 1080I 1080P for DVD Game Set Top Box, Long Distance Signal Transmission via Coaxial Cable (US Plug) :
WiFi to Remote RF Converter Yet6956 - China Converter, Remote RF Converter | Made-in-China.com
AV / RF pretvornik | Enaa
RF Converter PS1/PS2 To RF Video Converter PS Port To Cable Old TV Signal RF Converter - AliExpress
Reflex RF (Composite to RF Adapter) | MiSTer Addons
Mad Catz Universal RF Adapter - RF adapter - for Microsoft Xbox; Nintendo 64; GameCube; Sony PlayStation 2, One - Walmart.com