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Brown RG142 coaxial cable 10m double shielded silver plated copper PTFE insulator PVC jacket

Adafruit

Adafruit RG142 2 in 1 Accessory 10m 50 ohm 8000MHz

SKU CH-ZJA8-57REH

Low-loss RG142 coaxial cable, 10 m, 50 ohm impedance, rated to 8000 MHz with 1.15 VSWR, silver-plated copper double shield, PTFE insulator, PVC jacket

  • Low-loss signal path up to 8000MHz
  • Double silver-plated copper braid shields interference
  • PTFE insulator maintains stable 50 ohm impedance
  • 10 metre length reaches distant antennas
  • VSWR 1.15 ensures efficient power transfer

RG142 coaxial cable 10 metres 50 ohm

This RG142 coaxial cable provides a 10 metre run of 50 ohm transmission line for RF applications up to 8000 MHz. The double braided silver plated copper shield keeps VSWR at 1.15 for consistent signal integrity. It suits technicians and hobbyists building or extending antenna feeds and test leads.

Installation notes and common issues

The PTFE dielectric and silver plated copper conductor handle heat well but the 4.95 mm jacket is stiff so allow generous bend radii when routing. Prepare the 0.93 mm centre conductor and 2.95 mm dielectric carefully to avoid nicking the braid. A frequent mistake is over tightening connectors which crushes the 3.95 mm shield and raises VSWR.

Practical limits of 50 ohm coax at 8 GHz

Attenuation rises with frequency so runs near the 8000 MHz ceiling lose more signal than at lower bands. The 10 metre length adds insertion loss that may require gain compensation in receive chains. Users needing lower loss or longer distances should consider waveguide or larger diameter cable instead.

Highlights

  • Low-loss signal path up to 8000MHz
  • Double silver-plated copper braid shields interference
  • PTFE insulator maintains stable 50 ohm impedance
  • 10 metre length reaches distant antennas
  • VSWR 1.15 ensures efficient power transfer

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the RG142 cable is performing correctly after installation?

Measure the voltage standing wave ratio with a suitable analyser; a reading close to 1.15 across the run confirms the 50 ohm line is matched and the double silver-plated copper braid is intact.

What comes in the package and which connectors must I source separately?

The box contains a single 10 metre length of RG142 coax with 0.93 mm silver-plated copper centre conductor, PTFE dielectric, 3.95 mm double braid and 4.95 mm brown PVC jacket; SMA, N-type or BNC plugs are not included and must be purchased to match your equipment.

Which specification should I check to decide if this 10 metre RG142 run suits my frequency plan?

The cable is rated to 8000 MHz with a maximum VSWR of 1.15, so any system operating at or below 8 GHz and requiring a 50 ohm feed line with low loss can use this 10 metre assembly.

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