Isuzu D-MAX 2020 Owner's And Driver's Manual page 912

8-36
MAIN DATA
Antenna Cable
1. Use a high quality, one piece coaxial cable (at least 95% shield coverage) that is
impedance matched for the RF-transmitting equipment (VSWR < 2.0).
2. Excess coaxial cable shall not be coiled, as this may affect the tuning of the
antenna as well as producing electrical interference.
3. If possible, the antenna cable should be cut to the correct length.
4. The cable should be routed so as to avoid sharp bends.
5. Safety-sensitive electronic unit (e.g. airbag and ABS systems), circuits and
harnesses shall not be used for parallel wiring.
6. If it is necessary to cross other wiring, cross at right angles.
7. If an extension feeder cable is required, suitable coaxial cable shall be used and
correctly terminated with good quality, low-loss connectors.
NOTE
• Fit the correct antenna connectors at each end of the feeder cable to match the
equipment using either crimp or soldered connectors as appropriate.
8. If the antenna cable provided is too short, wherever possible the cable should be
replaced by a suitable feeder cable of correct length.
NOTE
• Extending the length of the feeder cable will result in additional losses,
particularly at frequencies > 800 MHz.
9. Ensure that the feeder cable is not strained or distorted by, for example,
excessive tightening of cable ties.
10. When vehicle trim is replaced, make sure that the panels do not trap the feeder
cable.
11. Additional care should be taken when installing a glass mount to the rear screen
of a hatch-back type vehicle to allow opening and to prevent damage to the
feeder cable.