5
3
Initial Installation
Only use fuses of the specified type and rating, otherwise the
transceiver could be damaged.
If you use the transceiver for a long period when the vehicle
battery is not fully charged, or when the engine is OFF, the battery
may become discharged, and will not have sufficient reserves to
start the vehicle. Avoid using the transceiver in these conditions.
Before operating, install an efficient, well-tuned antenna. The success of
your installation will depend largely on the type of antenna and its correct
installation. The transceiver can give excellent results if the antenna
system and its installation are given careful attention.
Use a 50Ω impedance antenna and low-loss coaxial feed-line that
has a characteristic impedance of 50Ω, to match the transceiver input
impedance. Coupling the antenna to the transceiver via feed-lines having
an impedance other than 50Ω reduces the efficiency of the antenna
system and can cause interference to nearby broadcast television
receivers, radio receivers, and other electronic equipment.
Antenna Connection
Transmitting without first connecting an antenna or other matched
load may damage the transceiver. Always connect the antenna to
the transceiver before transmitting.
All fixed stations should be equipped with a lightning arrester to
reduce the risk of fire, electric shock, and transceiver damage.
The possible locations of antenna on a car are shown as following:
External Speaker
If you plan to use an external speaker, choose a speaker with an
impedance of 8Ω. The external speaker jack accepts a 3.5mm (1/8")
mono (2-conductor) plug.
External speaker adopt double port BTL, please care about the
connecting way. The speaker can not connect with the ground,
otherwise the speaker will be fault. The wrong connecting way as
the following picture.
Accessories Connections
EXT SP
SP-01
Ground
Error
EXT SP
SP-01
