All cables lose some signal, the amount depends on the quality of both the cable and connector. As a general guide the thicker and less flexible the cable, the better the cable. This is because to reduce signal loss cables often have a number of layers designed to insulate and shield the inner core from external noise.
7/16 series connectors are a threaded coupling connector designed for high wattage transmissions, requiring very low VSWR and minimal intermodulation. The name is derived from the inner and outer contact dimensions – 7mm OD inner contact, 16mm ID outer contact. You’ll commonly find 7/16 DIN connectors on 1/2 and 7/8″ feeder cables connected to LTE and WCDMA base station antennas. 7/16 connectors are also popular in defence, broadcast and other microwave applications.
This is one of the most common antenna connectors, primarily used in VHF/UHF systems. The ‘B’ in BNC refers to the Bayonet twisting interface, with the female connector featuring two bayonet lugs on either side allowing connection to be achieved with only a quarter rotation. Ideally suited to RG58/59 and subminiature cables, BNC connectors offer good performance from DC to 4GHz and have either 50Ω or 75Ω resistance. All BNC connectors on our website are 50Ω.
Primarily used for cable TV, HFC, set-top boxes, cable modems, the F coaxial connector is a 75Ω connector often used in conjunction with standard RG59 and RG6 75Ω coaxial cables. The connector has good performance characteristics up to about 1GHz and is not suitable for modern day broadband requirements.
This is the standard 50Ω connector for all mobile phone and wireless broadband antennas. The FME connector was selected for its excellent performance in the 0-2GHz frequency range, and small connector diameter making it easy to fit in tight places. Rarely seen in any other RF applications, the FME connector is used almost exclusively for cellular telephony and data applications.
The MC-Card connector is a microminiature 50Ω that features snap-on mating, suitable for RF devices operating between DC and 6GHz. This connector is often used as a substitute for MMCX in many wireless and telecom applications due to its similar performance and physical dimensions.
The MCX or, Micro Coaxial, connector is a 50Ω miniature coaxial connector designed for RF applications between DC and 6GHz. It has identical inner contact and insulator dimensions as the more common SMB connector, but a 30% smaller outer diameter, making it ideal for tight installations. This connector is often used for GPS, TV tuner cards, RF hardware, and is often PCB mounted.
A minified connector based off the larger UHF connector, designed for space-limited RF applications. Like its larger counterpart, Mini-UHF series also have a variable impedance and is suitable for transmissions between DC and 2.5GHz. You will find this type of connector on many different RF applications, most prominently in UHF/VHF communications where its variable impedance (around the 50Ω mark for good quality connectors) isn’t as important.
The MMCX or, Micro-Minature Coaxial, connector is a miniature version of the 50Ω MCX coaxial connector. It performs well between DC to 6GHz and has a snap-lock function allowing 360 degree rotation once connected. This connector is most often seen PCB mounted on PCMCIA cards, modems, and GPS devices.
N connectors are the 50Ω connector of choice for most high quality antenna systems due to their wide performance band – DC to 11GHz. This large sized connector has a wider diameter than most connectors but is easily tightened by hand. You will find this connector on most RF applications including radar, mobile base stations, electronic instrumentation, and of course most microwave band antennas.
The QMA connector has a snap-lock mechanism designed for easier, faster and safer coupling. Often used to replace SMA, the connector can be seen in cellular base stations and defence applications. This 50Ω subminiature coaxial connector has a frequency range extending up to 18GHz.
A smaller 50Ω connector, most often found on the back of desktop modems and as the physical interfacing screw thread of some smaller antennas. Some antennas come pre-terminated with an SMA connector over the normal FME connector for hassle-free connecting to desktop wireless broadband modems, like the Bigpond Wireless Gateway series. SMA is designed for a diverse range of RF applications and is suitable for communications DC to 18GHz.
Similar in size and performance to the SMA connector, SMB was designed with a snap-on interfacing. SMB connectors have a 50Ω or 75Ω impedance, and are suitable for RF applications from DC to 4GHz. You will find SMB connectors in a wide range of areas from telecommunications through to industrial equipment. Gender of SMB connectors can often be confusing as the male has the socket/jack body, with the female having the plug body.
This connector is the subminiature version of the SMB connector. It is a 50Ω impedance coaxial connector with good performance from DC to 12GHz. Like its larger brother, SSMB also has a snap-on interfacing. Gender of SSMB connectors can also be confusing as like SMB, the male has the receptacle, with the female having the centre pin.
Identical to the BNC design, but have a threaded connector. Operates better than the BNC connector at microwave frequencies. TNC are miniature, threaded weatherproof units with a constant 50Ω impedance and operate from DC to 11 GHz. Widely used in WiFi equipment, radar, and military/aerospace systems.
UHF series are a variable impedance connector designed for low frequency operations 600KHz to 300MHz. This very large connector is used almost exclusively for radio and UHF applications. The low cost design of UHF connectors often results in impedance varying between 30-40Ω causing significant reflections above 300MHz. Despite this, the connector remains popular with CB/UHF (477MHz) users.