Smart Communications Ltd SC980A User Manual

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The SC-980 series and SC-780 transceiver is a combination conventional and trunking 

radio. 

As the trunking radio, the radio is capable of operating on up to 32 trunking system, and 

  it can operate on E.F.Johnson LTR ® trunking protocol. 

LTR® is a registered trademark of E. F. Johnson Company. 

As the conventional radio, the radio is capable of operating on up to 250 channels. 

Simplex (talk around) and semi-duplex operation are allowed on any system. The radio 

contains an automatic power control that maintains constant RF power output, and 

temperature compensating circuitry to maintain stable frequencies over varying 

temperatures.  

PRECAUTIONS:  Observe the following precautions to prevent fire, personal injury, and 

transceiver damage. 

・  Do not attempt to configure the transceiver while driving; it is too dangerous. 

・  Do not disassemble or modify the transceiver for any reason. 

・  Do not expose the transceiver to long periods of direct sunlight, nor place it near heating 

appliances. 

・  If abnormal odor or smoke is detected coming from the transceiver, switch the 

transceiver power off immediately, and contact your dealer. 

・  Use of the transceiver while you are driving may be against traffic laws. Please check 

and observe the vehicle regulations in your area. 

◆ 

The transceiver operates in 12 V negative ground systems only! Check the battery 

polarity and voltage of the vehicle before installing the transceiver. 

◆ 

Use only the supplied DC power cable. 

◆ 

Do not cut and/or remove the fuse holder on the DC power cable. 

 

For passenger safety, install the transceiver securely using the supplied mounting bracket 

and screw set so transceiver will not break loose in the event of a collision.