SO239 UHF jack to 3.5mm mono 1/8 TS Plug Car two way radio Antenna Cable 4"~16FT | eBay
Amazon.com: Portable Radio Signal Antenna SMA-Male, Outdoor TV FM Stereo Antenna,33Ft Ultra-Low Loss Coax Signal Extension Cable with 6pcs Universal Antenna Adapter for FM Radio Portable TV : Electronics
Amazon.com: NA UHF Female SO239 to 3.5mm Mono 1/8" TS Stereo Plug Adapter Radio Antenna Extension Cable 5 feet : Electronics
Bose 2.5mm Mono RCA Radio Antenna Black | eBay
Monopole antenna - Wikipedia
Bose 2.5mm Mono RCA Radio Antenna Black | eBay
3.5mm 1/8-inch Mono Male to F-Type Female Coaxial Cable Converter Ada – Ancable