User manual ICOM IC-A22

[. . . ] NEVER operate the transceiver with a headset or other audio accessories at high volume levels. Hearing experts advise against continuous high volume operation. If you experience a ringing in your ears, reduce the volume level or discontinue use. EXPLICIT DEFINITIONS The explicit definitions below apply to this instruction manual. DEFINITION Personal injury, fire hazard or electric shock RWARNING may occur. [. . . ] 10) PANEL DESCRIPTION When memory mode is selected, this switch sets the displayed channel as a scan lock-out channel when pushed for 2 sec. 8) - "SKIP" appears on the display. 2 i SQUELCH SWITCH [SQL] Push and hold to open the squelch. 6) While pushing [SQL], push [Y]/[Z] to select the squelch level. 6) - 9 squelch levels and squelch open are available. !3 EXTERNAL SPEAKER AND MICROPHONE JACKS [SP/MIC] Connect an optional speaker-microphone or headset, if desired. The internal microphone and speaker will not function when either is connected. 18 for a list of available options. ) Side tone function is available when an optional headset adapter is connected. 1) Connects the supplied antenna. o FUNCTION DISPLAY (p. 4) !0 TRANSMIT INDICATOR Lights red while transmitting. !1 EXTERNAL DC POWER JACK [CHARGE] Connect a 12 to 16 V DC power source using the optional cables, CP-12L or OPC-254L, to charge the attached battery pack; or connect the BC-110V wall charger for charging. CAUTION: This connection is for charging ONLY. Power to the transceiver must be turned OFF during charging. !2 SPEAKER/MICROPHONE 3 2 PANEL DESCRIPTION I Function display MR SKIP q MEMORY MODE INDICATOR (p. 9) Appears when memory mode is selected. to toggle the lock function ON and OFF. " " appears when the lock function is in use. To close the squelch: Release [SQL] to close the squelch. MR D Setting the squelch level q While pushing [SQL], push [Y] or [Z] to select the squelch level. - `Sq 1' is loose squelch and `Sq 9' is tight squelch. (Initial level is 3. ) - `oPEn' indicates that the squelch circuit is turned off. w Release [SQL] to return to regular operation. I Display backlighting Display backlighting automatically turns on when a key is pushed. I Low battery indicator Low battery indicator appears when the battery power has decreased to a specified level. MR SKIP I Side tone function When using an optional headset, such as those from the David Clark Co. via the OPC-752 HEAD SET ADAPTOR, the transceiver outputs your transmitted voice to the headset for monitoring. 18) 6 BASIC OPERATION 3 I Dial select function Use the dial select function to adjust the tuning behavior of the [Y]/[Z] keys--use 1 MHz tuning when you want to change the frequency in large increments; use regular tuning when you want to change the frequency in smaller increments. one or more times to select the desired tuning increment. - 1 MHz tuning, 100 kHz tuning or regular tuning steps can be selected. (see diagrams at right) e Push any key to return to normal operation. 1 MHz tuning selected 100 kHz tuning selected Regular tuning selected NOTE: Large tuning steps should be used only when you want to change the frequency in large increments please select regular tuning steps for normal operation. 7 4 SCAN OPERATION I VFO (Full) scan VFO scan repeatedly scans between the VFO's lowest frequency and its highest frequency. - To change the scan direction, push [Y] or [Z] during scanning. I Memory (lockout) scan Memory scan repeatedly scans all programmed memory channels, except those set as lockout channels. q Push [V/M] to select memory mode, if necessary. · " MR " appears. w Puch [SCAN] to start scan. [. . . ] · Lock function is activated. SOLUTION · Recharge the battery pack. · Check the connection to the transceiver. · Set squelch to the threshold point. 5, 6 No sound comes from the speaker. [. . . ]