144BASIC OPERATION4N Squelch level settingThe squelch circuit mutes the received audio signal, depend-ing on the signal strength. The receiver has 9 squelch levels,a continuously open setting and an automatic squelch set-ting.± While holding down [SQL], rotate [DIAL] to select thesquelch level.• “LEVEL 1” is loose squelch (for weak signals) and “LEVEL 9” istight squelch (for strong signals).• “AUTO” indicates the automatic level adjustment by a noisepulse count system.• “OPEN” indicates the continuously open setting.[DIAL]Automatic squelchMaximum levelN Receive mode selectionThe receiver has three receive modes, FM, AM and WFM.The mode selection is stored independently in each bandand memory channels.Typically, the AM mode is used for the AM broadcast stations(0.495–1.620 MHz) and air band (118–135.995 MHz), andWFM is used for FM broadcast stations (76–107.9 MHz).± Push [MODE] repeatedly to select a desired receivemode.FM modeAM modeWFM mode