Isuzu D-MAX 2020, Руководство владельца и водителя

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MAIN DATA
3. The installation shall comply with national legal requirements for the installation
and use of RF-transmitting equipment in vehicles.
4. Full consideration shall be given to the positioning of RF-transmitting equipment
such that electromagnetic interference (EMI) and radio frequency interference
(RFI) is minimized between the RF-transmitting equipment being installed and the
vehicle electrical and electronic systems.
5. Care shall be taken when planning the installation that any additional equipment
used does not constitute a safety hazard and does not contravene safety
regulations.
6. Care shall be taken to ensure that any microphone/handset lead is not such that
the lead can interfere with the vehicle controls or driver.
7. Where a hand portable or transportable unit is installed in road vehicles, the
correct car adapter kit specified for the product shall be used.
Installation
Care shall be taken in
• choosing the antenna,
• sitting it in a recommended location,
• installing it correctly,
• ensuring that all connection in the antenna feeder are sealed to prevent dirt and
water from entering the feeder and affecting its performance,
• ensuring that all connection are electrically tested after installation, and
• ensuring that a satisfactory VSWR reading is obtained.
Antenna
1. For RF-transmitting equipments with output power levels above 100mW (peak),
an external antenna is strongly recommended.
2. The external antenna and feeder cable shall be impedance matched with a
VSWR < 2.0.
3. The antenna should be a permanent-mount type located in the roof or the rear
trunk lid. If a magnet-mount antenna is used, care should be taken to mount the
antenna in the same location as a permanent-mount type.
NOTE
• Each vehicle model and body style reacts to radio frequency energy differently.
When dealing with an unfamiliar vehicle, it is suggested that a magnetic-mount
antenna be used to check the proposed antenna location for unwanted effects
on the vehicle. An antenna location is a major factor in these effects.
• The best position for an antenna is on the metallic roof, preferably towards the
center, but where possible with a distance of > λ/4 (λ = wavelength) from any
opening, such as a sunroof or windows.
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