User Manual
13
Controls, Connectors, and Display
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④①②
⑥③⑤
No. Key Function
A
External Speaker Jack 1 [SP1]
Connects an external 8: speaker. Output audio from right band. When
another speaker is not connected to [SP2], left band audio hear through
internal speaker. Also [SP1] used for connecting clone or PC cables.
B
External Speaker Jack 2 [SP2]
Connects an external 8: speaker. Output audio from left band. When another
speaker is not connected to [SP1], right band audio hear through internal
speaker.
C
DC Power cable Connects to the 13.8V DC power supply.
D
Air-cooling fan Cools the unit during transmission or when radio is holding high temperature.
E
Antenna connector Connects to antenna with 50: impedance matched with operation frequency.
F
DIN connector (6 PIN) Connects to external TNC unit for Packet communications.
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Before operating, install an efficient, well-tuned antenna. The success of your installation will depend on the
type of antenna and its correct installation. Use a 50: impedance antenna and low-loss coaxial feed-line
that has a characteristic impedance of 50:, to match the transceiver input impedance.
Coupling the antenna to the transceiver via feed-lines having impedance other than 50: reduces the
efficiency of the antenna system and can cause interference to nearby televisions, radio receivers and other
electronic equipment.
NOTE
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 protection to reduce the risk of fire,
electric shock, and transceiver damage.
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• If you plan to use an external speaker, choose a speaker with an impedance of 8:. Each external speaker
jacks accept a 3.5mm (1/8") mono (2-conductor) plug.
• External speaker adopt double port BTL, please care about the connection. Do not use the speaker that
requires grounding.
• Carefully insert plug into jack. Do not twist the plug and do not apply stress on speaker jack.
• When jacks are not in use, keep the [SP] cap (speaker jack cover) closed to keep contacts clean and
avoid entering dust and other objects into the radio.
• Insert plug into jack completely until end to prevent damaging the jack or plug.