RNG-350
VHF LEAKY
FEEDER CABLE

Becker Mining Systems smartcom®
150 and smartcom® 150IS Leaky
Feeder Cable acts as an antenna to
bring wireless voice, data, video and
Ethernet into mines and tunnels.
When installed in a system using
smartcom® 150 and smartcom® 150IS
amplifiers, RNG-350 cable will provide
up to 30m of off-cable coverage and
500m amplifier spacing.
Becker Mining Systems RNG-350
Leaky Feeder cable also provides a
flame resistant PVC outer shielding.
Since RNG-350 Leaky Feeder Cable
is MSHA approved it can be installed
in smartcom® 150 and smartcom®
150IS systems interchangeably.

PERFORMANCE SPECIFICATIONS
Impedance 75 ± 3 Ω
Capacitance 51 ± 2 pF/m
Inner Conductor
DC Resistance ≤ 0.0045 Ω/m
Outer Conductor
DC Resistance ≤ 0.0042 Ω/m
Inductance 300 nH/m
L/R Ratio 45.09 uH/Ω
Attenuation ≤ 15 dB/350 m @ 175
MHz, 20 ºC
Maximum Voltage
48 Vrms (Between
center conductor and
outer conductors)
Maximum Current
Center Conductor: 8
A rms, Single Outer
Conductor: 0.5 A rms
VHF LEAKY FEEDER CABLE
RNG-350
MECHANICAL DATA
Outer Cable
Diameter
15.5 ± 0.5 mm (0.610
± 0.02 in)
Minimum Bend
Radius 1 m (3.3 ft)
Cable Weight 0.23 kg/m (0.155
lbs/ft)
Cable Length/Roll 500 m (1640 ft) ± 2%
Weight per roll
(four rolls/pallet) 136 kg (300 lbs)
Reel Outside
Diameter 73.7 cm (29 in)
Reel Height 50.8 cm (20 in)
APPROVALS
MSHA #23-A050001-0
CE Certification Yes