Icom iF22SR instruction manual ‘ Setting squelch level, ‘ Auto Scan function

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3 BASIC OPERATION

Setting squelch level

The squelch circuit mutes the received audio signal depending on the signal strength.

q While

pushing and

holding

[VOL

[PTT]

and

[MONI],

turn

the

transceiver’s power ON to

/POWER]

 

enter the squelch adjustment

[S-Ring

mode.

 

 

 

 

 

 

 

 

/C-Ring]

w Push

[S-Ring/C-Ring] to

in-

 

crease the squelch level (tight

[PTT]

squelch) or

[MONI] to

de-

 

crease the squelch level (loose

[MONI]

squelch).

 

Squelch level will be fixed after 1 sec.

DOpen the squelch

Pushing and holding [MONI] cancels the squelch function. You can receive any signals on a channel.

Push [MONI] to turn ON the tone squelch function again.

Auto Scan function

Auto scan function proceeds in sequence from lower channel to higher channel numbers. Scanning searches for signals automati- cally and makes it easier to locate new stations for contact or lis- tening purposes.

qRotate the [CH] select knob to CH 16. w Scan starts automatically.

TX/RX indicator LED blinks green slowly.

When receiving a signal, scan pauses until the signal disappears. CONVENIENT: You can perform the scan start/stop by the optional

HM-75A SPEAKER-MICROPHONE[Mic A] key.

13

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Contents IF22SR Foreword Supplied Accessories Page Table of Contents ‘ Switches, controls, keys and connectors Panel DescriptionTX/RX Indicator LED LED VOLUME/POWER Control VOL/POWERPTT Switch PTT Channel Selector CH‘ LED indicator Brink patternsBattery Packs ‘ Battery pack replacementBattery Packs ‘ Battery cautions ‘ Battery charging Regular charging with the BC-146Regular charging with the BC-146 Rapid charging with the BC-121+AD-94 #11 Rapid charging with BC-144+AD-99Battery pack life ‘ Charging Note‘ Battery case Option Basic Operation ‘ Receiving and transmittingFrequency channel/CTCSS tone list default Channel RX/TX Freq. MHz*1 CH spacing Tone Hz*2‘ Setting squelch level ‘ Auto Scan function‘ Setting the group code number Using the Ctcss Tone CodeExample Freq Push PTTCtcss Find Turn the squelch function ON/OFFUsing the Dtcs Code Example Ring Function Smart-Ring operation see rightSelect the Call-Ring melody Smart-Ring operation Call your group member with Call-Ring melodyOther Functions Audible condition‘ Power save function Mic a Key Push Push and hold Mic UPMic Down Mic BSpecifications GeneralOptions ‘ OptionsCharger Other Options HM-46L/HM-75A/HM-131L Speaker Microphone What is squelch? GlossaryWhat is Ctcss Continuous Tone Coded Squelch Sys- tem ? About CE IcomEurope0168GmbH Count on us