Garrecht Avionik GmbH
VT-01 Transponder
Installation Manual - english -
Document:
01.0200.11E
Revision: 1.3
31
8. Antenna cable
The antenna line connects the RF connector of the transponder to the antenna. For a proper
installation, it is recommended to follow the instructions below:
•
Follow the instructions of the cable and plug manufacturer
•
For a proper installation, avoid shorts and cable interruptions in the antenna line
•
For the most type of installation, a special aircraft grade cable need to be used.
Do not exceed the maximum cable lengths specified below:
Class 1 instruments with 125 Watt @ antenna (central unit P/N: VT-0102-()-()-()-125 or system
unit P/N: VT-0104-125)
Cable Type
Maximum length [m]
Maximum length [ft]
RG 58 C/U*:
3,6
11,5
RG 213*:
6,0
19,6
RG 400:
3,2
10,0
AIRCELL 7 *
6,0
19,6
* = not certified for aircraft installation
Class 2 instruments with 70 Watt @ antenna (central unit P/N: VT-0102-()-()-()-070 or system
unit central unit P/N: VT-0104-070)
Cable Type
Maximum length [m]
Maximum length [ft]
RG 58 C/U*:
3,6
11,5
RG 213*:
6,0
19,6
RG 400:
3,2
10,0
AIRCELL 7 *
6,0
19,6
* = not certified for aircraft installation
The tables above are showing several antenna cable types and it's maximum lengths
for reference only.
If other cable lengths or types should be used, be sure not to exceed a maximum loss
of 2.5 dB. For connectors in the antenna line assume a loss of 0,2 dB /each.
Please always check, if certified cable is required for the installation in your
aircraft.
