Icom IC-M73 Instruction Manual - Page 21
Adjusting the squelch level, AquaQuake water draining function
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BASIC OPERATION 4 ■ Adjusting the squelch level To adjust the transceiver's squelch level, use the [Y]/[Z] keys, as described below. In order to properly receive signals, as well as for the scan to function effectively operate, the squelch must be adjusted to the proper level. q Push [ ], 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 seconds, the transceiver returns to its normal condition. w Push [ ] again to return to normal operating mode. Push Shows the squelch level. Appears during squelch level adjustment ■ AquaQuake water draining function 2 The AquaQuake water draining function clears water away from the speaker grill. Without this function, water may muffle the sound coming from the speaker. The transceiver 4 emits a vibrating beep when this function is activated. ➥ While holding down [F], the AquaQuake function is activated to clear water away from the speaker grill. 6 • Beep sounds, regardless of the volume level setting. 7 • Activates for 10 seconds in maximum to drain water. • The transceiver never accepts key operation while the Aqua- 8 Quake function is activated. • The AquaQuake function can not be activated when an optional 9 speaker-microphone is connected. 10 11 12 13 14 15 16 13
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