Icom IC-M502 Instruction Manual

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Icom IC-M502 Instruction Manual Manual pdf 12 page image

n Receiving and transmittingCAUTION: Transmitting without an antenna may dam-age the transceiver.q Push [POWER] to turn power ON.w Set the audio and squelch levels.å Rotate [SQL] fully counterclockwise in advance.å Rotate [VOL] to adjust the audio output level.å Rotate [SQL] clockwise until the noise disappears.e To change the channel group, push [CH/WX•DW•U/I/C]while pushing [HI/LO]. (p. 6)r Rotate the channel selector or push [Y]/[Z] on the micro-phone to select the desired channel.• When receiving a signal, “BUSY” appears and audio is emittedfrom the speaker.• Further adjustment of [VOL] may be necessary at this point.• Use the optional voice scrambler function for privacy. (p. 10)t Push [LO/DX] to turn the receive attenuator ON or OFF ifnecessary.• “LOCAL” appears when the receive attenuator is in use.y Push [HI/LO] to select the output power if necessary.• “25W” or “1W” appears when high or low power is selected, re-spectively.• Choose low power to conserve power, choose high power forlonger distance communications.• Some channels are for low power only.u Push and hold [PTT] to transmit, then speak into the mi-crophone.• “TX” appears.• Channel 70 cannot be used for transmission (for GMDSS use).Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN-NOT be lawfully used by the general public in U.S.A. wa-ters.i Release [PTT] to receive.IMPORTANT: To maximize the readability of your trans-mitted signal, pause a few sec. after pushing [PTT], holdthe microphone 4 to 6 inches (10 to 15 cm) from yourmouth and speak at a normal voice level.WATERPROOFSCANTAGDSC/ENTPOSHI/LOPOWERVOLiM502VHF MARINESQLLO/DXIC SCRCH/WXDW U/I/C 916DISTRESSqwer r yty u i3 BASIC OPERATION8