- Coaxial Connector Info and Photos
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connector coax photos information
and links to photos of common Coaxial Connectors we offer for US Made
LMR-400, LMR-240 and Belden 9907 Cable (we "consolidated" and
synopsized a lot from Wikipedia)
The N connector (in full, Type N
connector) is a
threaded RF connector used to join coaxial cables.
It was one of the first connectors capable of carrying
microwave-frequency signals, and was invented in the 1940s by Paul
Neill of Bell Labs, after whom the connector is named. N
connectors are the most common WiFi Antenna connections and are also
widely used in HAM and other Amateur Radio applications.
UHF Male PL-259 Connector
design, from an era when , also called the Amphenol coaxial connector,
is a World War II threaded RF connector UHF referred to frequencies
30 MHz. Originally
intended for use as a video connector in RADAR
applications, it was later used for RF applications. This connector was
developed on basis of a shielded banana plug.
is a common means of connecting television signals. It is a type of
coaxial RF connector commonly used for "over the air" terrestrial
television, cable television and universally for satellite television
and cable modems.
It was invented by Eric E. Winston in the early 1950s while working for
on their development of cable television. In the 1970s it became
commonplace on VHF television antenna connections, as coaxial cables
replaced twin-lead, and later for UHF also.
|Straight SMA Connectors
SMA (SubMiniature version A)
connectors are coaxial RF Connectors developed in the 1960s as a
minimal connector with a screw type coupling mechanism. The
connector has a 50 Ω impedance. It offers excellent electrical
performance from DC to 18
GHz. The outer shell of the male or plug connector has an
inside thread and
an inner pin, which can be confusing. In conventional SMA, the terms
"male" and "female" refer exclusively to the inner pin or socket of the
connectors. The male connector is also commonly referred to as a
"plug", whereas the female connector is also known as a "socket" or
|N Female Connector
the connector was designed to carry signals of up to 1 GHz
in military applications, but the common Type N today handles up to
11 GHz comfortably. More recent precision enhancements to the
Julius Botka at Hewlett Packard
have scaled this to 18 GHz. The connector is hand-tightened
has an air gap between center and outer conductors. The coupling has a
|UHF Female SO-238 Connector
An old standard, UHF connectors are generally usable through what is
now known as the VHF and HF frequencies and can handle RF power levels
over one kilowatt.
Despite the name it is rarely used for actual UHF frequencies as they
don't work well above 300 MHz.
|Straight VS Reverse Polarity (RP)
you are among the majority confused by the Governments (FCC) boondoggle
in connector governance join the crowd! We try to shed a
|RP-SMA WiFi Connectors
This just confuses people who
intuitively know that pins are male and holes are female!
Reverse polarity SMA (RP-SMA or RSMA) is a proprietary
the SMA connector specification which reverses the gender of the
interface, as shown in Photos below. The term "reverse polarity"
here refers only to the connector gender, not in any way to the
polarity of the signal.
An RP-SMA MALE connector has the same external housing
standard or conventional SMA, however, the internal prong or pin
is replaced by a receptacle or female inner pin. Similarly, an RP-SMA
FEMALE has a pin like a conventional male, and the
keeps the female outer threads.
|BNC Male Connector
The BNC (Bayonet Neill-Concelman)
is a very common type of RF Connector commonly used for terminating
coaxial cable. The BNC connector is used for RF signal connections, for
analog and digital video signals, HAM Amateur Radio antenna
connections, and many other types of equipment.
FME (For Mobile Equipment)is a miniature 50Ω RF connector series
offering excellent performance from DC to 2.0 GHz used in
and installations. The FME female is designed to be snaked through the
often tight access holes or
spaces of a vehicle to the desired equipment location(s).
|Straight TNC Connectors
The TNC (threaded Neill-Concelman) connector is a
threaded version of the BNC
connector. The connector has a 50 Ω impedance
best in the 0–11 GHz
frequency spectrum. It has better performance than the BNC connector at
Microwave frequencies. Straight TNCs are used on Cellular, Ham and
Microwave cables and Antennas.
|Solder VS Crimp Connectors
Old School PL-259 versis newer Crimp and Compression Connectors.
Which really work better?
|BNC Female Connector
and Female BNC Connectors come in 50 and 75 Ohm versions.
Although we match impedance, 75 Ohm BNC connectors that
with IEC 169-8 will mate in a
non-destructive manner with 50 Ohm BNC connectors that comply with IEC
169-8. The Canford Group, a manufacturer of BNC connectors claims "In
years and a many million BNC connectors we have no first hand
experience of incompatibility between 50 ohm and 75 ohm types, other
than extremely rare (and very obvious) manufacturing faults."
Mini-UHF connectors are miniaturized versions
of UHF Connectors,
designed primarily for use in mobile phones and similar applications
where size is an important consideration. Introduced in the 1970's,
Mini-UHF has a 3/8-24 thread size and operates up to 2.5 GHz.
|RP-TNC WiFi Connectors
Reverse-polarity TNC (RP-TNC) is a variation of the TNC specification
which reverses the polarity of the interface. This is usually achieved
by incorporating the female contacts normally found in jacks into the
plug, and the male contacts normally found in plugs into the jack.
RP-TNC connectors are widely used by WiFi equipment manufacturers to
comply with FCC regulations designed to prevent consumers from
connecting antennas which
exhibit too much DB gain and breach compliance. This connector
is common on WiFi or Broadband Routers and Antennas from Cisco, Linksys
and other lines of Wi-Fi products. RP-TNC can also be abbreviated as
|Less Common Connectors
Yep, There are more, Many More...
|N Male Connectors
||LMR-240 with N Male Connectors
||LMR-400 N Male
||N Female connector (LMR-400)
||LMR-400 N Female Connector (right)
|UHF Male Connectors
|LMR-240 UHF Male Crimp Connector
||LMR-400 Solder PL-259 Connector
|SO239 UHF Female connector (right)
||SO239 UHF Female connector (bottom)
|BNC Male Connectors
||LMR-240 BNC Male Connector
||Standard Female BNC
||FME Male Connector
||FME Female Connector
||F Male Connector
Reverse Polarity (RP)
or Reverse Polarity - Big
one time all connectors were straight. Boys were boys and
Girls were girls then along came the Government...
order to regulate WiFi and try to create connectors specialized for
it's use we have the FCC and the wonderful concept of RP (Reverse
Polarity). Now we have Females with Male Pins and Males with
Female innards. See the picture here of SMAs, but TNCs,
and others can all be Straight or RP depending on their use.
Take a look at the photos and if
you don't know which you need Please Ask.
TNC Male Connectors
||Standard TNC Male Connector
||Standard Straight TNC Male Connection
||Reverse Polarity TNC Connector Male
|| LMR-400 N Male to RP-TNC
TNC Female Connectors
||Female TNC Standard Connection
||TNC Female Straight Connection
||Back of Router RP-TNC Female Connection
||Reverse Polarity TNC Connector Female
|Straight SMA Male Connectors
||LMR-400 N Female (left)to SMA Male (right) Cable
|Standard SMA Male Connector
|RP-SMA Male Connectors
||Reverse Polarity SMA Male Connector
RP-SMA Female (top) to RP-SMA Male (bottom)
|Straight SMA Female Connectors
|| Straight Female SMA
||SMA Straight Female Connector
|RP-SMA Female Connectors
||Back of Router RP-SMA Female Connection
RP-SMA Female (top) to RP-SMA Male (bottom)
Solder VS Crimp Connectors
years now the commercial standard has been to Crimp, Clamp or Compress
connectors onto cable assemblies. Crimped connections simply
provide better shielding, retention, service life and ease of
installation. HAM purists
of the old school scoff at the very idea! This is so true
that we continue to offer quality Soldered PL-259s as our standard UHF
connection. We use Silver plated connectors to assure a good solder
joint and Silver solder to make the connections. Most Hams
just seem to desire this. While we will continue to offer
PL-259s standard we will provide the same Crimp UHF connectors we use
on our own installs upon request.
Those we may have:
Those we don't:
Reverse Polarity N