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Miscellaneous
RF Information (What Does "BNC" Stand For
Anyway...?)
RF
Spectrum Acronyms
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DC:
Direct Current (0 Hz).
-
LF:
Low Frequency (30 KHz ~ 300 KHz).
-
MF:
Medium Frequency (300 KHz ~ 3 MHz).
-
HF:
High Frequency (3 MHz ~ 30MHz).
-
VHF: Very
High Frequency (30 MHz ~ 300 MHz).
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UHF: Ultra
High Frequency (300 MHz ~ 3 GHz).
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SHF: Super
High Frequency (3 GHZ ~ 30 GHz).
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EHF: Extra
High Frequency (30 GHz ~ 300 GHz).
RF
Connector Information
BNC
(Bayonet Neill Concelman)
Invented by and named
after Amphenol Engineer Carl Concelman and
Bell Labs Engineer Paul Neill and was developed
in the late 1940's.
A coaxial connector
with bayonet coupling mechanism. This connector is
available in 50 Ohm and 75 Ohm versions. This connector
has a frequency range of DC (0 HZ) through 4
GHz (50 Ohm version) and DC (0 HZ) through 1 GHz (75
Ohm version). The BNC connector is available in standard
and reverse polarity configurations.
MCX
(Micro
Coaxial)
A micro coaxial connector
with snap-on coupling mechanism. This connector is
available in 50 Ohm and 75 Ohm versions. This connector
has a frequency range of DC (0 HZ) through 6
GHz. MCX connectors conform to the European CECC 22220
Specification.
MMCX
(Micro-Miniature
Coaxial)
A micro-miniature
coaxial connector with lock-snap coupling mechanism.
This connector has a 50 Ohm Impedance. This connector
has a frequency range of DC (0 HZ) through 6
GHz. MMCX connectors conform to the European CECC
22220 Specification.
SMA
(Subminiature Version A)
A subminiature coaxial
connector with screw type coupling mechanism. This
connector has a 50 Ohm Impedance. This connector has
a frequency range of DC (0 HZ) through 18 GHz.
SMB
(Subminiature Version B)
A subminiature coaxial
connector with snap-on coupling mechanism. This connector
is available in 50 Ohm and 75 Ohm versions. This connector
has a frequency range of DC (0 HZ) through 4
GHz.
SMC
(Subminiature Version C)
A subminiature coaxial
connector with screw type coupling mechanism. This
connector is available in 50 Ohm and 75 Ohm versions.
This connector has a frequency range of DC (0
HZ) through 10 GHz.
TNC
(Threaded Neill Concelman)
Invented by and named
after Amphenol Engineer Carl Concelman and
Bell Labs Engineer Paul Neill and was developed
in the late 1950's.
A coaxial connector
with screw type coupling mechanism. This connector
is available in 50 Ohm and 75 Ohm versions. This connector
has a frequency range of DC (0 HZ) through 11
GHz (50 Ohm version) and DC (0 HZ) through 1 GHz (75
Ohm version). The TNC connector is available in standard
and reverse polarity configurations.
Type
N (Neill)
The first connector
capable of microwave performance. Invented by and
named after Bell Labs Engineer Paul Neill and
was developed in the 1940's.
A coaxial connector
with screw type coupling mechanism. This connector
is available in 50 Ohm and 75 Ohm versions. This connector
has a frequency range of DC (0 HZ) through 11
GHz (50 Ohm version) and DC (0 HZ) through 1 GHz (75
Ohm version). The Type N connector is available in
Standard N (For Coaxial Cable) and Helical N, or "HN",
(For Corrugated Cable) configurations.
UHF
Type
Invented by Amphenol
Engineer E. Clark Quackenbush and was developed in
the 1930's for use in the radio industry.
A coaxial connector
with screw type coupling mechanism. This connector
has a non-defined impedance. This connector has a
frequency range of DC (0 HZ) through 300 MHz.
The UHF Type connector is a general purpose connector
developed for use in Low Frequency systems from 600
KHz to 300 MHz.
"UHF" is
an acronym for "Ultra High Frequency". When
the UHF connector was introduced in the 1930's, 300
MHz was considered Ultra High Frequency.
RF
Frequency (¦)
and Wavelength (l)
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Frequency (¦)
in Kilohertz = (300,000) / Wavelength in Meters.
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Frequency (¦)
in Megahertz = (300) / Wavelength in Meters.
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Frequency (¦)
in Megahertz = (984) / Wavelength in Feet.
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Wavelength (l)
in Meters = (300,000) / Frequency in Kilohertz.
-
Wavelength (l)
in Meters
= (300) / Frequency in Megahertz.
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Wavelength (l)
in Feet = (984) / Frequency in Megahertz.
Disclaimer
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