5 | OPERATION |
After the transceiver has been installed (see section 4), ensure the power supply and antenna are properly connected.
5.1 RECEPTION
1.Turn the POWER SWITCH/VOLUME CONTROL on.
2.Turn the volume control knob to the desired level.
3.Turn the SQUELCH CONTROL knob fully counterclockwise. This state is known as “squelch off”.
4.Turn up the volume until noise or audio from the speaker is at a comfortable level.
5.Select a channel that has no signal being received (no one is transmitting on the channel). Only noise should be heard.
6.Slowly turn the SQUELCH CONTROL knob clockwise and stop immediately after the noise disappears. This condition is known as the “Squelch Threshold”. If the SQUELCH CONTROL knob is turned clockwise past this point, weak signals are not received. No noise and no signals are heard until a signal is received that exceeds the squelch threshold.
7.To change channels, press the UP or DN key. Sometimes, a slight adjustment of the squelch threshold needs to be made, because some channels have a higher noise level than others.
Please refer to the Owner’s Manual Supplement for a complete listing of all USA, International and Canadian VHF Marine channels and their usages.
5.2 TRANSMISSION
1.Perform steps 1 through 7 of RECEPTION.
2.Before transmitting, monitor the channel and make sure it is clear.
THIS IS AN FCC REQUIREMENT!
GX1250S | Owner's Manual | Page 11 |