Lars Thrane LT-3100 - Page 48

LT-3100 User & Installation Manual Rev. 1.06 Interfaces
Lars Thrane A/S www.thrane.eu Page 37 of 155
The total DC resistance for the two cables (FF195LSFROH and FF400LSFROH) are:
IMPORTANT: If using a coaxial cable that is different to what is specified in this section (FF195LSFROH
and FF400LSFROH), then verify that the RF and DC coaxial cable requirements (Table 4 and
Table 5) are respected and calculate the maximum cable length as a function of the input
voltage and the total DC resistance. Contact Lars Thrane A/S to get assistance on selection
and acceptance of a specific coaxial cable.
NOTE: The LT-3110 Control Unit must be powered off when connecting or disconnecting the LT-
3130 Antenna Unit.
Total DC Resistance (Inner and Outer Conductor)
Cable Type
Inner Conductor DC
Resistance [Ω/km]
Outer Conductor DC
Resistance [Ω/km]
Total DC Resistance
[Ω/km]
FF195LSFROH (4.9 mm)
24.9
15.8
40.7
FF400LSFROH (10.3 mm)
4.5
6.5
11
Table 7: Total DC resistance (cable examples)