What type of RF connector is commonly used for low-power transceivers and test instruments?

The BNC (Bayonet Neill-Concelman) connector is widely used in low-power transceivers, handheld radios, and test equipment like oscilloscopes. Its design features a quick-connect and disconnect bayonet locking mechanism, making it incredibly convenient for environments where cables are frequently swapped. BNC connectors maintain a reliable 50-ohm impedance at frequencies well into the GHz range, which is why they are the standard for test instruments. In contrast, UHF (PL-259) connectors are bulkier and typically used for HF base stations, while N connectors are preferred for high-power VHF/UHF setups. RCA connectors are generally designed for audio and baseband video, not RF transmission.