- Coaxial Cables
Coaxial Cables as you wish
In addition to the wide range of coaxial connectors, Telegärtner offers suitable coaxial cables with a characteristic impedance of either 50 or 75 Ohm. This enables a one-stop shopping process for connectors and cables for our customers. Using the Coax Configurator, customers can also easily create and order their own cable assemblies online.
The coaxial cable range at Telegärtner includes standard RG cables, high-quality PTFE cables, Low Loss cables as well as hand-formable and highly shielded Semi Flex cables. Furthermore, the portfolio encompasses special cables like a suitable cable for drag chains or a railway-approved Low Loss cable.
Telegärtner also offers UL approved versions for selected cable types. Coaxial cables can be ordered ex stock in coiled and tied standard unit rings. Selected types are also available on complete cable drums.
Coaxial Cable Assemblies
Telegärtner is equipped with modern production facilities and is thus able to manufacture cable assemblies exactly in accordance with customer specifications in the shortest of lead-times. The use of high-precision equipment for preparing cables, as well as special crimp presses, ensures an efficient and reliable assemblies production.
The well-trained and experienced personnel guarantee high-quality production. Furthermore, the cable assemblies are subject to a 100% voltage and electrical continuity test. Phase-matched assemblies, as well as assemblies with individual Return Loss tests, are also available on request.
Typical structure of Coaxial Cable
Coaxial cables, also referred to as coax cables, are electrical cables that transmit high-frequency signals (HF signals). They consist of an inner conductor, which is usually a copper wire. This inner conductor is surrounded by a dielectric, which serves as insulation and influences the line characteristic impedance and the cable attenuation. The third layer - the outer conductor - protects the cable from electromagnetic interference and the last layer - the sheat or protective sheat - protects the cable from mechanical damage or moisture.
Criteria for selecting suitable coaxial cables
In our product overview a variety of technical characteristics is shown. Using this table will help you easily and quickly find the right cable for your application. The most important characteristics are briefly described here:
- Impedance 50 Ohm or 75 Ohm
Almost every system works with 50 Ohm technology. For broadcast and video applications, 75 Ohm systems are used. - Insertion Loss (Attenuation)
Insertion loss describes the total electrical loss along an electrical line (ratio of input to output power). This value is mainly determined by cable diameter, material of the dielectric and the transmission frequency. Low Loss Cables for example are characterized by particularly good, that is, low values of insertion loss. Compared to corresponding RG-Cables of the same size, the signal attenuation is significantly lower, especially when using higher frequencies. - Screening Effectiveness
Screening effectiveness describes how well a cable prevents electrical energy escaping from or entering into a transmission line. Improving this value is achieved by applying double braids, foil under braid (Low Loss Cables) or tin-soaked braids (Semi Flex Cables) as the outer conductor. - Temperature Range
Depending on the materials used, cables may be applied in different ambient temperature ranges. Cables with PE or PVC jackets can be used up to approx. 80°C, cables with PTFE or FEP jacket up to approx. 200°C. PTFE or FEP jackets are furthermore resistant to oil, UV radiation or chemicals.
Coaxial Cables - Overview
Simple RG Cables
well-known standard worldwide single or double braid as outer conductor jacket made of PVC, PE or other compound material available in 50 Ohm and 75 Ohm for many various applications
RG Cable with Jacket Made of PTFE/FEP
single or double braid as outer conductor high-quality jacket made of PTFE or FEP resistant to oil, UV radiation and chemicals hochtemperaturbeständig available in 50 Ohm and 75 Ohm for applications in harsh environments high-temperature resistant
Low Loss Cables
foil and single braid as outer conductor in combination with foamed dielectric for lowest signal loss jacket made of PVC, PE or other compound material for long transmission lines available in 50 Ohm and also in 75 Ohm for HDTV
Semi-Flex-Cable
very dense outer conductor braid that has been soaked in tin for high screening effectiveness available with or without FEP jacket (outdoor application possible) hand-formable, keeps the shape after bending available in 50 Ohm can be installed in highly electrically radiating environments (for example in devices like mobile communications antennas) for frequencies up to 18 GHz Find our portfolio of Semi Flex Cables in the online catalogue.
Highlights of Cable Portfolio
X-bend 58 PUR
50 Ω used for drag chains very flexible and robust designed for approx. 2 Mio bending cycles resistant to oil and UV radiation, flame retardant, halogen free
RG-58 Types
50 Ω very common coax cable for various applications flexible design with inner conductor made of 19 strands available with jacket made of PVC, PE or flame retardant compound material
Low Loss 400 Rail FR LS ZH
50 Ω approved for installation and use in trains very robust highly flame retardant according to EN 45545-2, NFF 16101 low attenuation halogen free
Low Loss HD
5 Ω designed for studio equipment and broadcast vans HDTV, usable for 4K Flame retardant jacket and thus well-suited for indoor installation