User manual ICOM IC-490A-E

[. . . ] If you experience a ringing in your ears, reduce the volume level or discontinue use. SAVE THIS INSTRUCTION MANUAL -- This instruction manual contains important operating instructions for the IC-490A-E. EXPLICIT DEFINITIONS The explicit definitions below apply to this instruction manual. DEFINITION Personal injury, re hazard or electric shock RWARNING may occur. CAUTION NOTE Equipment damage may occur. No risk of personal injury, re or electric shock. [. . . ] 6) "BUSY" appears when receiving a signal or when the squelch is open. 6) *NOTE: The VFO/memory switch [V/M] and the memory write switch [M/W] functions may not be available depending on version. 3 BASIC OPERATION I Power ON q Push [POWER] to turn power ON. 2 I Channel selection ï VFO/Memory selection q Push [V/M] to select memory mode or VFO mode. Rotate the dial to select a desired frequency/channel. w During memory mode operation, push [V/M] key to transfer the memory contents to VFO. · Push [V/M] to select VFO mode. w Operate the transceiver as indicated in the following sections. e Select the desired memory channel (or VFO frequency) with the [V/M] keys. · When receiving a signal, appears and audio is emitted from the speaker. · Further adjustment of audio level may be necessary at this point. · Push [SQL] to adjust the squelch level. 6) · Push and hold the tuning dial for 1 sec. to select the [TS], each push increments/decrements to the frequency are either 10 kHz or 1 MHz. 7) NOTE: Only frequency data is transferred even if the memory channel has a memory name. ï External speaker output control External speaker output can be turned OFF, if desired. w Rotate the dial to select "SP OFF". after the signal disappears even if you did not converse the station. When you take the microphone during the scan operation. · In VFO scan; scan resumes promptly to frequency. · In memory scan; scan resumes promptly to memory channel. · In priority memory scan; scan resumes to priority channel, NOTE: Be sure to connect the supplied microphone hanger to the vehicle's ground for on/off hook microphone functions. 12) I Dualwatch Dualwatch monitors priority channel while you are receiving an other channel (VFO or memory channel). · If a signal is received on priority channel, dualwatch pauses on priority channel until the signal disappears. · To transmit on the selected channel during dualwatch, push and hold PTT. 250 msec. Priority channel 5 sec. VFO frequency or memory channel ï Operation q Select the desired operating channel (VFO or Memory channel). to erase all characters. r Push [SCAN/MW] for 2 sec. to input the set name. · Flashing stops. · Memory channels can be programmed with names of up to 7 characters in length. [. . . ] wUnscrew the 4 screws, then remove the bottom cover. 1) e Insert the connector as shown below. 2) r Mount the phone plug attachment together with the mobile mounting bracket with 2 supplied screws. 3) I OPC-871 Headset adapter When using a headset (supplied from 3rd party) via the adapter, the transceiver outputs your transmitted voice to the headset for monitoring. [. . . ]