Socket Mobile IC-4088A Optional HM-75A functions, Switch action, PTT switch Lock switch

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OTHER FUNCTIONS 9

■Optional HM-75A functions

The optional HM-75A allows remotely selected operating channels, open the squelch, etc. The switches on the HM-75A function as fol- lows.

CAUTION: When connecting the HM-75A to the transceiver,

make sure that power to the transceiver is turned OFF, other- wise the transceiver may malfunction.

DSwitch action

SWITCH	NORMAL		While holding HM-75A’s [PTT]
A	Smart-Ring		No function
B	Open squelch		No function	9
UP	Change the oper-
	ating	channel	Smart-Ring
	number up.
	Change the oper-
DOWN	ating	channel	Call-Ring
DOWN	number down.
	PTT switch		B
			A
Lock switch:
Locks all		OFF ON
Locks all		LOCK
switches		LOCK
switches
except [PTT]
			Earphone
			jack

21

Image 27

Contents I4088A Foreword Supplied Accessory Precaution Precaution Table of Contents BP-202 Alkaline cells Battery installationSwitches, controls, keys and connectors Panel DescriptionSpeaker Channel UP Switch Y Volume Control VOLPTT Switch PTT Mode Switch Mode0TRANSMIT Indicator Appears during PTT on KEY Lock IndicatorGroup Number Indicator Channel Number IndicatorBattery Charging Battery cautionRecycling information U.S.A. only Regular charging with the BC-149A, CP-18A Charging connectionsAC adapter AD-105 BC-119N Not used IC-4088A BP-202 Turn the power OFFPower on Adjusting the volumeBasic Operation Selecting the operating channel Receive and Transmit Talk Range Setting the group code Group Mode CtcssFreq Ctcss code tableStarting the scan Scan FunctionRing Functions Smart-RingCall-Ring Voice scrambler function Initial set modeEntering initial set mode Other FunctionsScan resume type Time-out timerAuto power OFF timer Beep tones ON/OFFLCD backlight Ring tone typeLock function ‘ Auto power saveATS Automatic Transponder System ‘ Resetting the transceiverSwitch action PTT switch Lock switchOptional HM-75A functions General SpecificationsChannel number and group number Channel frequency listCH Freq.MHz HM-46/HM-75A/HM-131 Speaker Microphones OptionsMemo 6274D-1US- w