Icom IC-718 Instruction Manual - Page 28

5 RECEIVE AND TRANSMIT s Function for transmit ï Output power and microphone gain • Setting output power q Push [SET] for 1 sec. to select quick set mode. w Push [∫ UP]/[√ DN] one or more times to select "RF Power". e Rotate the main dial to select the desired output. • Output power is displayed in 101 steps (L, 1-99 and H) but is continuously selectable. • Available power SSB/CW/RTTY: 2 (or less) -100 W AM: 2 (or less) -40 W* *Carrier power • Setting microphone gain Microphone gain must be adjusted properly so that your signal does not distort when transmitted. q Select SSB or another phone mode. w Push [SET] for 1 sec. to enter the quick set mode. e Push [∫ UP]/[√ DN] one or more times to select "MIC GAIN". r When speaking into the microphone adjust the mic gain so that the ALC meter does not peak past the ALC zone. t Push [SET] to exit quick set mode. ALC zone Maximum output power is selected. Microphone gain is set to 50. ï Meter function The bar meter in the function display acts as an Smeter (for relative signal strength) during receive and can be selected for one of three functions during transmit. • Push [SET] one or more times to select the PO, ALC and SWR meter mode. DISPLAY INDICATION MEASUREMENT Po Indicates the relative RF output power. ALC Indicates the ALC level. When the meter movement shows the input signal level exceeds the allowable level, the ALC limits the RF power. In such cases, reduce the microphone gain (see above). SWR Indicates the SWR over the transmission line. 26