Types
BNC connectors abide in 50 and 75 ohm versions, akin for use with cables of the aforementioned appropriate impedance. The 75 ohm types can sometimes be accustomed by the bargain or absent dielectric in the alliance ends. The 50 and 75 ohm connectors are about defined for use at frequencies up to 4 and 2 GHz respectively.
Video and DS3 Telco axial appointment applications primarily use 75 ohm BNC connectors, admitting 50 ohm connectors are acclimated for abstracts and RF. Many VHF receivers acclimated 75 ohm antenna inputs, so they generally acclimated 75 ohm BNC connectors.
edit Compatibility
The altered versions are advised to acquaintance with anniversary other,2 and a 75 ohm and a 50 ohm BNC adapter which both accede with the 1978 standard, IEC 169-8, will acquaintance non-destructively. At atomic one manufacturer4 claims actual top believability for the connectors' compatibility.
At frequencies beneath 10 MHz the impedance conflict amid a 50 ohm adapter or cable and a 75 ohm one has negligible effects.5 BNC connectors were appropriately originally fabricated alone in 50 ohm versions, for use with any impedance of cable. Above this frequency, however, the conflict becomes progressively added cogent and can advance to arresting reflections.
BNC connectors abide in 50 and 75 ohm versions, akin for use with cables of the aforementioned appropriate impedance. The 75 ohm types can sometimes be accustomed by the bargain or absent dielectric in the alliance ends. The 50 and 75 ohm connectors are about defined for use at frequencies up to 4 and 2 GHz respectively.
Video and DS3 Telco axial appointment applications primarily use 75 ohm BNC connectors, admitting 50 ohm connectors are acclimated for abstracts and RF. Many VHF receivers acclimated 75 ohm antenna inputs, so they generally acclimated 75 ohm BNC connectors.
edit Compatibility
The altered versions are advised to acquaintance with anniversary other,2 and a 75 ohm and a 50 ohm BNC adapter which both accede with the 1978 standard, IEC 169-8, will acquaintance non-destructively. At atomic one manufacturer4 claims actual top believability for the connectors' compatibility.
At frequencies beneath 10 MHz the impedance conflict amid a 50 ohm adapter or cable and a 75 ohm one has negligible effects.5 BNC connectors were appropriately originally fabricated alone in 50 ohm versions, for use with any impedance of cable. Above this frequency, however, the conflict becomes progressively added cogent and can advance to arresting reflections.
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