Icom IC-F27SR Instruction Manual

■ Setting the squelch levelThe squelch circuit mutes the received audio signal, depending onthe signal strength and the squelch setting.Rotate [VOL] to turn OFF theqtransceiver power.Set [ROTARY SELECTOR] towany channel other than Channel16.While pushing and holding [PTT]eand [Lower], rotate [VOL] to turnON the power and enter thesquelch level adjustment mode.Push [Upper] to increase thersquelch level (tight squelch), orpush [Lower] to decrease thesquelch level (loose squelch).• The adjustable range is 0 (loosesquelch) to 9 (tight squelch).• A beep sounds after pushing [Upper] or [Lower].If the level is set on 0 or 9, an error beep sounds after pushing.Therefore, you can determine the current level setting by the typeof beep that sounds.Rotate [VOL] to turn OFF the power, then turn ON again to exittthe squelch level adjustment mode.NOTE: This operation may not be available, depending on thepreprogramming. Ask your dealer for details.163OPERATION1234567891011121314151617181920[VOL][Upper][ROTARY SELECTOR][PTT][Lower]