Page 189 - L-com products 2018 e-magazine catalog

Selecting the Right Cable Interface ~ COAXIAL 187

How do you select the right coaxial cable interface for your application?

There are numerous coaxial interfaces in use today. These interfaces cover a broad range of applications including both 50 Ohm data signal transmission and 75 Ohm audio/video sig-
nal transmission. The following chart is a general guide to help you select the best interface for your specific application.
Typical
Coupling
Interface Type Impedance Application Typical Cable Types Frequency
Mechanism
Range
BNC Available in both 50 Ohm version is utilized in data signal Two stud bayonet Wide variety of RG style 0-4 GHz
50 and 75 Ohm transmission for such applications as twist and lock coaxial cables including 50
WAN/LAN, Ethernet or Test & Ohm RG174, RG58, RG142
Measurement. 75 Ohm version is utilized etc. And 75 Ohm RG179,
in audio/video signal transmission for RG59, RG6
such applications as security and CATV

TNC (Threaded version of 50 Ohm Data signal transmission for such Threaded coupling Wide variety of RG style 0-11 GHz
a BNC) applications as GPS, wireless base coaxial cables including
stations antennas and instrumentation RG174, RG58, RG142, etc

SMA 50 Ohm Data signal transmission for such Threaded coupling Generally used on small 0-18 GHz
applications as GPS and instrumentation diameter cable such as
RG174, RG188 and RG316

Type N 50 Ohm Data signal transmission for such Threaded coupling Generally used on larger 0-11 GHz
applications as GPS antennas and diameter cable such as RG58,
instrumentation RG213 and RG223

Type F 75 Ohm Video signal transmission in applications Threaded coupling Primarily RG59 and RG6 0-1 GHz
such as CATV and entertainment video

MCX 50 Ohm Data signal transmission for such Snap on coupling Generally used on small 0-6 GHz
applications as GPS antennas and diameter cable such as
instrumentation RG174, RG188 and RG316

MMCX 50 Ohm Data signal transmission for such Snap on coupling Generally used on small 0-6 GHz
applications as GPS antennas and diameter cable such as
PCMCIA cards RG174, RG188 and RG316

SMB Available in both Data signal transmission for such Snap on coupling Generally used on small 0-4 GHz
50 and 75 Ohm applications as digital cellular, GPS and diameter cable such as 50
wireless LAN Ohm RG174, RG188 and
RG316 and 75 Ohm RG179
and RG187

SMC Available in both Signal transmission for such applications Threaded coupling Generally used on small 0-10 GHz
50 and 75 Ohm as automotive GPS and telecom with high diameter cable such as 50
vibration requirements Ohm RG174, RG188 and
RG316 and 75 Ohm RG179
and RG187

Reverse Polarity 50 Ohm Signal transmission in wireless spread Threaded coupling Primarily used with RG174 TNC
TNC and SMA spectrum devices that must comply with and RG58 0-11 GHz
FCC non standard interface rule
SMA
0-18 GHz

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