Antenna Connection; Accessories Connections - Retevis RT95 Instruction Manual

3.3 Antenna Connection

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.
» 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:

3.4 Accessories Connections

3.4.1 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.
RT95 UHF/VHF Two Way Radio
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