244 BASIC OPERATIONN Lock functionTo prevent accidental frequency changes and unnecessaryfunction access, use the lock function.± Push and hold [ ](MENU) for 1 sec. to turn the lock func-tion ON and OFF.• “ ” appears while the lock function is activated.• [PWR], []/[], [SQL], [PTT] and [ ](MENU) are operablewhile the lock function is activated.• The squelch control and volume control can be used while thelock function is in use with default setting. Either or both thesquelch control and volume control can also be locked in theFUNC set mode. MENU ¶ SET ¶ FUNC ¶ LOCK (p. 127)AppearsN ReceivingMake sure a charged battery pack (BP-217) or brand newalkaline batteries (BP-216) are installed (pgs. 2, 14).q Push and hold [PWR] for 1 sec. to turn power ON.w Push [] or [] to set the desired audio level. (p. 16)• The frequency display shows the volume level while setting.e Set the receiving frequency. (p. 23)r Set the squelch level. (p. 17)• While pushing and holding [SQL], rotate [DIAL].• The first click of [DIAL] indicates the current squelch level.• “ LEVEL 1” is loose squelch (for weak signals) and “LEVEL 9” istight squelch (for strong signals).• “ AUTO” indicates automatic level adjustment by a noise pulsecounting system.• Push and hold [SQL] to open the squelch manually.t When a signal is received:• Squelch opens and audio is output.• The S/RF meter shows the relative signal strength level.q [PWR]e Set frequencyr Set squelch levelw Set audio levele Select bandr Push for settingthe squelch(Push to monitor)
