Document
Cable Group
Full Name
Commscope LDF4RK-50A 1/2" Heliax Cable, Fire Retardant
Description
Commscope LDF4RK-50A HELIAX is a half-inch corrugated copper cable with a low-density foam dielectric. LDF4RK-50A is a sub-variant of Andrews LDF4-50A, with the RK variant using a non-halogenated and fire retardant polyolefin outer jacket.
The LDF4-50A series 1/2" cables have been manufactured by Andrews (now a Commscope brand) since 1971. Fire retardant half-inch corrugated cables form an essential component of distributed antenna systems (DAS). Half-inch is a common distribution feeder size due to its very low attenuation at cellular frequencies, and modest diameter making it relatively easy to handle.
For best results Commscope LDF4RK-50A cable requires preparation with EASIAX Automated Cable Preparation Tool.
RF Specification
Min. Frequency
0 GHz
Max. Frequency
8.8 GHz
Capacitance
75.8 pF/m
dc Test Voltage
5000 V
Impedance
50 Ω
Inner Conductor Resistance
1.48 Ω/km
Outer Conductor Resistance
2.69 Ω/km
Velocity
88%
Peak Power
40.00 kW
Attenuation Table
| Frequency | Attenuation | Power (CW) |
|---|---|---|
|
500 MHz
|
0.0502 dB/m
|
1.52 W
|
|
512 MHz
|
0.0509 dB/m
|
1.5 W
|
|
600 MHz
|
0.0553 dB/m
|
1.38 W
|
|
700 MHz
|
0.0601 dB/m
|
1.27 W
|
|
800 MHz
|
0.0646 dB/m
|
1.18 W
|
|
824 MHz
|
0.0656 dB/m
|
1.16 W
|
|
894 MHz
|
0.0686 dB/m
|
1.11 W
|
|
960 MHz
|
0.0712 dB/m
|
1.07 W
|
|
1000 MHz
|
0.0728 dB/m
|
1.05 W
|
|
1218 MHz
|
0.0811 dB/m
|
0.94 W
|
|
1250 MHz
|
0.0823 dB/m
|
0.93 W
|
|
1500 MHz
|
0.0909 dB/m
|
0.84 W
|
|
1700 MHz
|
0.0974 dB/m
|
0.78 W
|
|
1794 MHz
|
0.1004 dB/m
|
0.76 W
|
|
1800 MHz
|
0.1006 dB/m
|
0.76 W
|
|
2000 MHz
|
0.1067 dB/m
|
0.72 W
|
|
2100 MHz
|
0.1096 dB/m
|
0.7 W
|
|
2200 MHz
|
0.1125 dB/m
|
0.68 W
|
|
2300 MHz
|
0.1154 dB/m
|
0.66 W
|
|
2500 MHz
|
0.1209 dB/m
|
0.63 W
|
|
2700 MHz
|
0.1263 dB/m
|
0.6 W
|
|
3000 MHz
|
0.1341 dB/m
|
0.57 W
|
|
3400 MHz
|
0.144 dB/m
|
0.53 W
|
|
3600 MHz
|
0.1488 dB/m
|
0.51 W
|
|
3700 MHz
|
0.1512 dB/m
|
0.5 W
|
|
3800 MHz
|
0.1535 dB/m
|
0.5 W
|
|
3900 MHz
|
0.1559 dB/m
|
0.49 W
|
|
4000 MHz
|
0.1582 dB/m
|
0.48 W
|
|
4100 MHz
|
0.1604 dB/m
|
0.48 W
|
|
4200 MHz
|
0.1627 dB/m
|
0.47 W
|
|
4300 MHz
|
0.1649 dB/m
|
0.46 W
|
|
4400 MHz
|
0.1671 dB/m
|
0.46 W
|
|
4500 MHz
|
0.1693 dB/m
|
0.45 W
|
|
4600 MHz
|
0.1715 dB/m
|
0.44 W
|
|
4700 MHz
|
0.1737 dB/m
|
0.44 W
|
|
4800 MHz
|
0.1759 dB/m
|
0.43 W
|
|
4900 MHz
|
0.178 dB/m
|
0.43 W
|
|
5000 MHz
|
0.1801 dB/m
|
0.42 W
|
|
6000 MHz
|
0.2006 dB/m
|
0.38 W
|
|
8000 MHz
|
0.2383 dB/m
|
0.32 W
|
|
8800 MHz
|
0.2524 dB/m
|
0.3 W
|
Physical Specification
Colour
Black
Min. Bend Radius Static
50.8 mm
Min. Bend Radius Dynamic
127 mm
Weight (g/m)
250 g
Cable Layers
| Layer | Diameter | Materials |
|---|---|---|
|
Inner Conductor
|
4.83 mm
|
|
|
Dielectric
|
12.95 mm
|
|
|
Outer Conductor
|
13.97 mm
|
|
|
Outer Jacket
|
16.00 mm
|
Downloadable Resources
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