Freenet Antennas only sells low-loss, coax antenna cables. There are two types:
- CFD-200. Recommended for antenna cables up to 3m .
- CFD-400. Recommended for antenna cables longer than 3m.
These cables are functionally identical to:
- LMR-400, HDF-400, etc
- LMR-200, HDF-200, etc
CFD Cable Specifications
CFD (Celled Foam Dielectric) Coax cable is ideally suited for 2.4 GHz WiFi antenna cabling.
It is a high quality, low-loss, outdoor rated cable.
|
Cable Type |
CFD200 |
CFD400 |
|
|
Physical Properties |
| Mechanically similar to |
RG58/U |
RG8/U JIS 8D |
| Conductor |
|
| One |
| Bare Copper Wire |
| 1.12 mm |
|
| One |
| Copper Clad Aluminium |
| 2.7 mm |
|
| Dielectric |
|
|
|
| Shield |
|
Sealed
Aluminum Mylar
Aluminum Tape |
Tinned Copper
Wire
(88% coverage) |
|
|
Sealed Aluminum Mylar
Aluminum Tape |
|
Tinned Copper Wire
(88% coverage) |
|
| Jacket |
|
|
Polyethylene (PE) |
| 4.95 mm |
|
|
| Mass |
0.037 kg/m |
0.108 kg/m |
| Minimum Bend
Radius |
12.7 mm |
25.4 mm |
Cable Markings
Click image to enlarge |
|
 |
|
|
Electrical Properties |
| Nominal
Impedance |
50 ohms |
50 ohms |
| Velocity of
Propagation |
83% |
85 % |
| Capacitance |
80.4 pF/m (24.5 pF/ft) |
78.4 pF/m
(24.0 pF/ft) |
| DC
Resistance |
Inner Conductor |
19.6 ohm/km |
4.56 ohm/km |
| Outer Conductor |
16.0 ohm/km |
5.41 ohm/km |
| Attenuation |
| MHz |
| 2400 (measured) |
| 2000 |
| 1500 |
| 900 |
| 450 (70 cm
band) |
| 220 |
| 150 (2 m
band) |
| 50 |
| 30 |
|
|
dB/m |
|
0.540 |
| 0.493 |
| 0.424 |
| 0.326 |
| 0.228 |
| 0.159 |
| 0.130 |
| 0.075 |
| 0.058 |
|
|
dB/m |
|
0.220 |
|
0.196 |
|
0.168 |
|
0.128 |
|
0.089 |
|
0.061 |
|
0.050 |
|
0.029 |
|
0.022 |
|
