G&BL Hi Quality Antenna Cables


Publish date: 27 December 2016

G&BL Hi Quality Antenna Cables

The importance of an Hi-Quality Antenna cable


Better signal transmission... Better video... Better Audio...


With brodcasters focusing more and more on 4K content, HDR, etc a good quality antenna cable will ensure that you benefit fully of these new standards.


So... what's the correct parameter you have to look at when choosing an antenna cable????




First of all, what is a coaxial cable?


Coaxial cable, or coax like usually shortened, is a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Many coaxial cables also have an insulating outer sheath or jacket. The term coaxial comes from the inner conductor and the outer shield sharing a geometric axis.

Coaxial cable is used as a transmission line for radio frequency signals, including computer network (Internet) connections and distributing cable television signals. One advantage of coaxial over other types of transmission line is that in perfectly built coaxial cable the electromagnetic field carrying the signal exists only in the space between the inner and outer conductors.

This allows coaxial cable runs to be installed next to metal objects such as gutters without the power losses that occur. Furthermore coaxial cable provides protection of the signal from external electromagnetic interference.


Other characteristic... 



Centre Conductor


The centre conductor of a coaxial cable is used to transfer the AC signal and often comprises of either a solid copper wire or multiple strands of twisted copper wire. Multi-strand centre conductors are much more flexible than their solid copper counterparts, but incur significantly more signal loss per metre of cable (known as attenuation) due to the Proximity Effect. The diameter, or more importantly, the surface area of the inner conductor is also critical in reducing Ohmic losses via the Skin Effect.




A key to coaxial cable design is tight control of cable dimensions and materials. Together, they ensure that the characteristic impedance of the cable takes on a fixed value. 

Electrical characteristics of coax are application dependent and crucial to good performance. Two standard characteristic impedances are 50 Ohm, used in moderate power environments, and 75 Ohm, common for connections to antennas and residential installations.




G&BL can offer a really complete line of Antenna and Sat cables, starting from entry level line to arrive to Hi-End solution.




G&BL Antenna cables


G&BL - Hi-End SAT "F" Connecting Cable

  • assembled with two male connectors, both “F” type- conductor rated 75 Ohm
  • LC-OFC monocrystalline copper giving an A/V signal qualitysecond to none
  • Moulded connectors for optimum durability over time
  • 2 ferrite cores for optimum rejection of electromagneticdisturbances and interference
  • 4 levels of shielding designed to bring about an optimumreduction of electromagnetic interference
  • Ultra high quality cable with internal conductor made ofOxygen Free Copper


G&BL - Professional Antenna Line

  • 1 x IEC 9.5 mm male
  • 1 x IEC 9.5 mm female
  • Impedance 75 Ohm
  • Dual shielding
  • Screening efficiency > 110 dB
  • Ferrite cores protecting against EMI type interference
  • Metal connector with gold-plated contacts


G&BL - Professional Antenna Line 90°

  • 1 x IEC 9.5 mm male 90° space-saver
  • 1 x IEC 9.5 mm female 90° space-saver 
  • Impedance 75 Ohm
  • Dual shielding
  • Screening efficiency > 110 dB
  • Ferrite cores protecting against EMI type interference
  • Metal connector with gold-plated contacts