User manual ICOM IC-M88

[. . . ] INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM88 This device complies with Part 15 of the FCC Rules. Operation is subject to the follow two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as "Occupational Use Only", meaning it must be used only during the course of employment by individuals aware of the hazards, and the ways to minimize such hazards. This radio is NOT intended for use by the "General Population" in an uncontrolled environment. [. . . ] The power save function activates automatically when no signal is received for 5 sec. For U. S. A version: To prevent accidental prolonged transmission, etc. , the IC-M88 has a time-out timer function. This timer cuts a transmission OFF after 5 min. y Push and hold to transmit u Release to receive w Opening the squelch q Power ON e Set volume I Receiving and transmitting CAUTION: Transmitting without an antenna may damage the transceiver. q Rotate [VOL] clockwise to turn power ON. w Use the squelch function to mute any audio noise if necessary. After pushing the [SQL] for 1 sec. , the squelch function is cut off until [SQL] is released. 19), and rotate volume to set the audio output level. r Push [Y]/[Z] to select the desired channel. - When receiving a signal, " " appears and audio is emitted from the speaker. - Further adjustment of [VOL] may be necessary at this point. t Push [H/L·LOCK] to select the output power if necessary. - "LOW" appears when low power is selected; "MID" appears when middle power is selected; no indication when high power is selected. - Choose low power to conserve battery power, choose high power for longer distance communications. - Some channels are for low power only. y Push and hold [PTT] to transmit, then speak into the microphone. - "TX" appears. - Channel 70 cannot be used for transmission (for GMDSS use). u Release [PTT] to receive. r Set channel t Set output power 10 BASIC OPERATION 4 I Adjusting the squelch level The IC-M88 has a squelch even though there is no control knob for it. 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 [SQL], then adjust the squelch level with [Y]/[Z]. - "SL" indicator appears. - There are 11 squelch levels to choose from: OP is completely open; 10 is the tight squelch level. - When no key is pushed for 5 sec. , the transceiver returns to normal condition. I Voice scrambler operation (Available for I/S version only) D Activating the scrambler The optional voice scrambler provides private communications. In order to receive or send scrambled transmissions, you must first activate the scrambler function. q Select an operating channel except Channel 16, 70 or weather channels. w While pushing and holding [SQL], push [SCN·DUAL]. · "SCRM" appears. w Push [SQL] again to return to normal condition. 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 Automatic backlighting This function is convenient for nighttime operation. The automatic backlighting can be activated in SET mode. 19) Push any key except for [PTT] to turn the backlighting ON. · The backlighting is automatically turned OFF after 5 sec. [. . . ] 17--21) q While pushing [SQL], turn power ON. Push LOCK I LOCK FUNCTION (p. 9) (Available for USA version only) q Turn the weather alert item in the SET mode ON (p. 18). w Push [SQL] again to select an item. Refer to pgs. to turn the lock function ON and OFF. w Select WX channel; or start scanning. [. . . ]