User manual ICOM IC-M72

[. . . ] INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM72 This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. This radio has been evaluated for compliance at the distance of 2. 5 cm with the FCC RF exposure limits for "Occupational Use Only". In addition, your Icom radio complies with the folW ARN ING lowing Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: · FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. [. . . ] YZ r Push [Y]/[Z] to select the desired channel. I Monitor function The monitor function releases the noise squelch mute to check the volume level. 19 for details of the monitor switch action. Push and hold [ tion. ·" " and " ] for 1 sec. to activate the monitor func" appear and audio is emitted. Appears while the monitor function is in use. t Push [16·9] to program the displayed channel as the call channel. · The call channel number stops blinking. Push for 1 sec. 10 BASIC OPERATION 4 I Adjusting the squelch level YZ To adjust the IC-M72's squelch level, use the [Y]/[Z] keys as desired below. In order to receive signals properly, as well as for the scan to function effectively, the squelch must be adjusted to the proper level. q Push [ YZ ], then adjust the squelch level with [Y]/[Z]. - "SQL" and the squelch level are displayed. - There are 11 squelch levels to choose from: OP is completely open; 10 is tight squelch; 1 is loose squelch level. - When no key is pushed for 5 sec. , the transceiver returns to normal condition. I Voice scrambler operation (available with some versions only) D Activating the scrambler The voice scrambler provides private communications. In order to receive or send scrambled transmissions, you must activate the scrambler function first. q Select an operating channel other than Channel 16, 70 or weather channels. w While pushing and holding [ ], push [SCAN·DUAL]. · "SCRM" appears. 4 w Push [ ] again to return to normal operating mode. Shows the squelch level. Appears during squelch level adjustment Push e To turn the scrambler function OFF, repeat step w. · "SCRM" disappears. Appears when the voice scrambler function is in use. D Programming scramble codes I Backlighting function This function is convenient for nighttime operation. The backlighting can be turned OFF in the SET mode. 19) Push any key other than [PTT] to turn the backlighting ON. · The backlighting is automatically turned OFF after 5 sec. of inactivity. There are 32 codes (1 to 32) available for programming. In order to understand each other, all transceivers in your group must use the same scramble code, as well as the same scrambler unit. 22 for "Scrambler code" setting details. 11 4 BASIC OPERATION I VOX function NOTE: An optional headset and optional headset adapter are required for the VOX operation. The VOX function (voice operated transmission) starts transmitting when you speak into the headset's microphone. The IC-M72 automatically returns to receive mode when you stop talking. Push and hold [ ], then push [H/L·LOCK] to turn the VOX function ON or OFF while connecting the headset and optional headset adapter to [SP MIC] connector. · "VOX" appears on the LCD while the VOX function turns ON. · The VOX gain and VOX delay can be set on the SET mode. [. . . ] · The connected battery pack's voltage is more · Verify the battery voltage is correct. · Push [ ] and [H/L·LOCK] to deactivate the VOX function. · Set the VOX gain to lower sensitive value. · Recharge the battery pack. -- p. [. . . ]