RG 59 B/U
Construction and cross-section
RG 59 B/U is a coaxial cable with a characteristic impedance of 75 ohms: a solid center conductor of copper-clad steel, a solid polyethylene dielectric, a braided shield of bare copper and a black PVC jacket.
Key data
- Characteristic impedance
- 75 Ω
- Outer diameter
- 6.2 mm
- Layers
- 4
Every cable is the answer to a task.
Layer by layer, to scale.
Carrying video signals at 75 ohms, for example in video surveillance and in studio equipment.
inside
Copper-clad steel
Ø 0.58 mm
Solid polyethylene (PE)
Ø over this layer 3.71 mm
Bare copper
Single wire Ø 0.15 mmassumed
PVC
outsideØ 6.2 mm
“Assumed” means: the value does not come from a datasheet but is a usual value or one chosen from a reference.
Cross-section
To scaleOuter diameter
6.2 mm
Dielectric
3.71 mm
Center conductor, solid
0.58 mm
In the picture, the copper-clad steel center conductor is shown as copper.
To look for yourself, take it in your hand.
Turn, zoom, hide layers.
RG 59 B/U as a 3D model, from the same data as every picture on this page.
Loads the model (0.1 MB)
3D model3D model · 60 kB
That leaves the question of what the jacket says.
What the name says.
“RG” stands for “Radio Guide” and comes from a US military designation system for radio-frequency cables. The number is a serial number: it says nothing about diameter or characteristic impedance. A letter after the number marks a version of the type, and the suffix “/U” marks general use.
Sources and assumptions
Center conductor, dielectric and the materials of shield and jacket follow the Belden 8263 datasheet. The outer diameter comes from a distributor's catalog. The wire diameter of the braid, its number of wires and its lay length are assumed.
- Belden 8263, manufacturer's datasheet
- Rules for using the pictures
- What can be made from a model like this: Product images, Online catalog, Features
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