Icom IC-F3161T User manual

INSTRUCTION MANUAL
This device complies with Part 15 of the FCC
Rules. Operation is subject to the condition that this
device does not cause harmful interference.
The photo shows the
UHF transceiver.
iF4161T
UHF TRANSCEIVER
iF4161S
iF3161T
VHF TRANSCEIVER
iF3161S

i
IMPORTANT
READ ALL INSTRUCTIONS carefully and com-
pletely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL — This
instruction manual contains important operating instructions
for the IC-F3161T and IC-F3161S VHF TRANSCEIVERS and
IC-F4161T and IC-F4161S UHF TRANSCEIVERS.
See the operating guide for details of BIIS, MDC and LTR®
system operations. Ask your dealer for details.
EXPLICIT DEFINITIONS
WORD DEFINITION
RDANGER! Personal death, serious injury or an explo-
sion may occur.
RWARNING! Personal injury, fire hazard or electric
shock may occur.
CAUTION Equipment damage may occur.
NOTE
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
RDANGER! Use and charge only specified Icom battery
packs with Icom radios or Icom chargers. Only Icom battery
packs are tested and approved for use with Icom radios or
charged with Icom chargers. Using third-party or counterfeit
battery packs or chargers may cause smoke, fire, or cause
the battery to burst.
RWARNING! NEVER hold the radio so that the an-
tenna is very close to, or touching exposed parts of the body,
especially the face or eyes, while transmitting. The radio will
perform best if the microphone is 5 to 10 cm (2 to 4 in.) away
from the lips and the radio is vertical.
RWARNING! NEVER operate the radio with a headset
or other audio accessories at high volume levels. The contin-
uous high volume operation may cause a ringing in your ears.
If you experience the ringing, reduce the volume level or dis-
continue use.
RWARNING! NEVER operate the radio while driving
a vehicle. Safe driving requires your full attention—anything
less may result in an accident.
CAUTION: NEVER use non-specified accessories and
options. Using them invalidates the transceivers FM approval.
PRECAUTIONS

ii
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PRECAUTIONS
CAUTION: MAKE SURE the flexible antenna and bat-
tery pack are securely attached to the radio, and that the an-
tenna and battery pack are dry before attachment. Exposing
the inside of the radio to water will result in serious damage
to the radio.
DO NOT operate the radio near unshielded electrical blast-
ing caps.
DO NOT push [PTT] when you do not actually intend to
transmit.
DO NOT operate or place the radio in direct sunlight or in
areas with temperatures below –20°C (–4°F) or above +40°C
(+104°F).
DO NOT modify the radio. The specifications may change
and then not comply with the requirements of a corresponded
regulation. The radio warranty does not cover any problems
caused by unauthorized modification.
DO NOT use harsh solvents such as benzine or alcohol
when cleaning, as they will damage the radio surfaces.
KEEP the transceiver away from the heavy rain, and Never
immerse it in the water. The transceiver is water resistant,
not waterproof.
BE CAREFUL! The radio will become hot when operating
it continuously for long periods of time.
Even when the radio power is OFF, a slight current still flows
in the circuits. Remove the battery pack or batteries from the
radio when not using it for a long time. Otherwise, the in-
stalled battery pack or batteries will become exhausted, and
will need to be recharged or replaced.
MAKE SURE to turn OFF the radio power before connect-
ing or disconnecting the supplied/optional equipment.
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incor-
porated (Japan) in Japan, the United States, the United Kingdom, Germany,
France, Spain, Russia and/or other countries.
LTR is a registered trademark of the E.F.Johnson Technologies, INC. in the
United States.
All other products or brands are registered trademarks or trademarks of their
respective holders.

iii
FCC INFORMATION
• FOR CLASS B UNINTENTIONAL RADIATORS:
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reason-
able protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in ac-
cordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guaran-
tee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to cor-
rect the interference by one or more of the following meas-
ures:
 •Reorientorrelocatethereceivingantenna.
 •Increasetheseparationbetweentheequipmentandre-
ceiver.
 •Connecttheequipmentintoanoutletonacircuitdiffer-
ent from that to which the receiver is connected.
 •Consultthedealeroranexperiencedradio/TVtechni-
cian for help.
CAUTION: Changes or modifications to this transceiver,
not expressly approved by Icom Inc., could void your author-
ity to operate this transceiver under FCC regulations.
INTRINSIC SAFETY
Versions of the IC-F3161T, IC-F3161S, IC-
F4161T and IC-F4161S which display the
“” marking on the label.
The approval rating for these models are;
Intrinsically safe :
Class I, II, III, Division 1,
Groups C, D, E, F, G
Nonincendive : Class I, Division 2,
Groups A, B, C, D
WARNING! NEVER charge the BP-232FM (with/with-
out the transceiver) in an explosive atmosphere. The optional
battery chargers are not approved as Intrinsically Safe.
When the transceiver is used in a hazardous area, the BP-232FM
MUST be attached, either the jack cover or HM-169IS MUST
be attached to the speaker-microphone connector.
KEEP the transceiver and the BP-232FM clean to avoid any
risk of ignition due to the build-up of electrostatic charges.
Repair of Icom radios should only be carried out by autho-
rized Icom distributors. In particular, repair of FM approved
radios can ONLY be done by Icom to maintain the intrinsi-
cally safe rating. NEVER attempt to repair an FM approved
radio. Only Icom has the repair expertise and procedures to
maintain the FM approval. Contact your Icom distributor or
authorised dealer for details.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
iv
TABLE OF CONTENTS
IMPORTANT.......................................................................... i
EXPLICIT DEFINITIONS....................................................... i
PRECAUTIONS..................................................................... i
FCC INFORMATION ........................................................... iii
INTRINSIC SAFETY............................................................ iii
TABLE OF CONTENTS....................................................... iv
1 ACCESSORIES ...........................................................1–3
 ■ Supplied accessories ...................................................1
 ■ Accessory attachments................................................1
2 PANEL DESCRIPTION..............................................4–10
 ■ Front panel ...................................................................4
 ■ Function display ...........................................................5
 ■ Programmable function keys........................................6
3 BASIC OPERATION................................................11–18
 ■ Turning power ON ......................................................11
 ■ Channel selection.......................................................11
 ■ Call procedure............................................................13
 ■ Receiving and transmitting.........................................13
 ■ User set mode............................................................16
 ■ Scrambler function .....................................................16
 ■ Stun function ..............................................................16
 ■ Emergency transmission............................................17
 ■ Automatic Key Lock function ......................................18
 ■ Priority A channel selection........................................18
4 BATTERY CHARGING ............................................19–23
 ■ Caution.......................................................................19
 ■ Optional battery chargers...........................................21
5 SWIVEL BELT CLIP ................................................24–25
 ■ MB-93 contents ..........................................................24
 ■ To attach.....................................................................24
 ■ To detach....................................................................25
6 SPEAKER MICROPHONE............................................26
 ■ Optional HM-169IS description ..................................26
 ■ To attach.....................................................................26
7 OPTIONS.................................................................27–29
8 SAFETY TRAINING INFORMATION.......................30–32

1
1ACCESSORIES
■Supplied accessories
The following accessories are supplied.
Battery pack Belt clip
Connector cover
(with screw)
Flexible antenna
(This illustration is
for the UHF type.)
■Accessory attachments
DFlexible antenna
Connect the supplied flexible antenna
to the antenna connector.
CAUTION:
•NEVER carry the transceiver by
holding only the antenna.
•DO NOT connect the antenna
other than listed on page 28.
•Transmittingwithoutanantenna
will damage the transceiver.

2
1
ACCESSORIES
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DBattery pack
To attach the battery pack:
Slide the battery pack on the back of the transceiver in the direc-
tion of the arrow (q), then lock it with the battery release button.
•Slidethebatterypackuntilthebatteryreleasebuttonmakesa‘click’
sound.
To remove the battery pack:
Push the battery release button in the direction of the arrow
(w) as shown below. The battery pack is then released, and
you can remove it.
NEVER remove or attach the battery pack when the trans-
ceiver is wet or soiled. This may result water or dust get-
ting into the transceiver/battery pack and may result in the
transceiver being damaged.
q
w
Battery release
button
Battery pack
NOTE:Keepthebatterypackterminalsclean.It’sagood
idea to occasionally clean them.
DBelt clip
To attach the belt clip:
qRemove the battery pack if it is attached.
wSlide the belt clip in the direction of the arrow until the belt
clipislockedandmakesa‘click’sound.
To detach the belt clip:
qRemove the battery pack if it is attached.
wPinch the clip (q), and slide the belt clip in the direction of
the arrow (w).
q
w

3
1ACCESSORIES
DConnector cover
To attach the connector cover:
qInsert the connector cover into the multi-connector.
wTighten the screw.
q
w
Multi-
connector
Connector
cover
CAUTION:
Attach the connector cover when the optional accessory
is not used. Otherwise the terminals of the multi-connec-
tor may be shorted by metal object, etc., and this could
damage the transceiver.
To detach the connector cover:
qRemove the screw using a phillips screwdriver.
wDetach the connector cover for the multi-connector.
q
w

4
2
PANEL DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
■Front panel
w
e
t
r
y
q
!1
!0
o
!2
u
i
Microphone
Speaker
qROTARY SELECTOR
Rotate to select the pre-programmed memory channels or
the operating zone. (Depending on the pre-setting)
wANTENNA CONNECTOR
Connects the supplied antenna. (p. 1)
eDEALER-PROGRAMMABLE KEY [EMR]
Desired function can be programmed by your dealer.
(p. 6)
rDEALER-PROGRAMMABLE KEY [Side1]
Desired function can be programmed by your dealer.
(p. 6)
tPTT SWITCH [PTT]
Push and hold to transmit; release to receive.
yDEALER-PROGRAMMABLE KEYS [Side2]/[Side3]
Desired function can be programmed independently by
your dealer. (p. 6)
u10-KEYPAD (Depending on version)
The keypad allows you to enter digits to:
 •Selectmemorychannels
 •Selecttonechannels
 •SelectDTMFcodes(duringtransmit)
 •SetTXcodes
 •Startupwiththepassword
iDEALER-PROGRAMMABLE KEYS [P0] to [P3]
Desired function can be programmed independently by
your dealer. (p. 6)
oFUNCTION DISPLAY (p. 5)
Displays a variety of information such as an operating
channel number/name, Set mode contents, DTMF code,
selected function, etc.

!0 MULTI-CONNECTOR
Connect an optional accessory.
Connector cover
NOTE: Attach the connec-
tor cover when the optional
accessory is not used.
See page 3 for details.
!1 BUSY/TRANSMIT INDICATOR
 ➥Lights green while receiving a signal, or when the
squelch is open.
 ➥Lights red while transmitting.
!2 VOLUME CONTROL [VOL]
Rotate to turn the power ON/OFF and adjusts the audio
level.
■Function display
SET CALA TXCU TXC
q t iuyrew
o
!0
qSIGNAL STRENGTH INDICATOR
Indicates relative signal strength level.
wLOW POWER INDICATOR
Appears when low output power is selected.
eAUDIBLE INDICATOR
 ➥ Appearswhenthechannelisinthe‘audible’(unmute)
condition.
 ➥ Appears when the matched signal is received.
r COMPANDER INDICATOR
Appears when the compander function is activated.
t SCRAMBLER INDICATOR
Appears when the voice scrambler function is activated.
5
2PANEL DESCRIPTION

6
2
PANEL DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
y BELL INDICATOR
Appears/blinks when the matched signal is received, ac-
cording to the pre-programming.
u CALL CODE MEMORY INDICATOR
Appears when the call code memory is selected.
i BATTERY INDICATOR
Appears or blinks when the battery power decreases to a
specified level.
Indication
Full Middle Charging
required No batteryBattery level
blinks when the battery is exhausted.
blinks when the battery is over charged.
o ALPHANUMERIC DISPLAY
 ➥ Displays an operating channel number, channel name,
Set mode contents, DTMF code, etc.
➥The indication mode can be selected from 1 line or 2
lines. Ask your dealer for details.
 •Inthisinstructionmanual,theLCDillustrationisdescribed
using the 2 lines indication mode.
!0 KEY INDICATOR
Indicate the programmed function of the front panel keys
([P0], [P1], [P2] and [P3]).
■Programmable function keys
The following functions can be assigned to [EMR],[Side1],
[Side2], [Side3], [P0], [P1], [P2] and [P3] programmable
function keys.
Consult your Icom dealer or system operator for details con-
cerning your transceivers programming.
If the programmable function names are bracketed in the fol-
lowing explanations, the specific key is used to activate the
function depends on the programming.
CH UP AND DOWN KEYS “UP” “DOWN”
➥Push to select an operating channel. When [Rotary selec-
tor] selects “operating channel,” this key is not available.
➥Push to select a transmit code channel after pushing
[TX Code CH Select].
➥Push to select a DTMF channel after pushing [DTMF Au-
todial].
➥Push to select a scan group after pushing and holding
[Scan].
➥Push to select the desired application type, individual/talk-
group ID, TX status message and SDM (Short Data Mes-
sage) after pushing [Digital Button].

2PANEL DESCRIPTION
ZONE KEY “ZONE”
Push this key, then push [CH Up] or [CH Down] to select
the desired zone. When [Rotary selector] selects “operating
zone,” this key operation is not available.
What is “zone”?— Selected channels are assigned to a
zone according to how they are to be used in a group. For
example,‘StaffA’and‘StaffB’areassignedintoa“Busi-
ness”zone,and‘John’and‘Cindy’areassignedintoa“Pri-
vate” zone.
ZONE UP AND DOWN KEYS “ZNUP” “ZNDN”
Push to select an operating zone. When [Rotary selector] se-
lects “operating zone,” this key is not available.
SCAN KEY “SCAN”
➥Push to start and cancel scanning operation.
 •WhenPowerONScanfunctionisactivated,pushtopausethe
scanning operation. And the paused scan restarts after the
specified time period has passed.
➥Push and hold this key for 1 sec. to indicate the scan list,
then push [CH Up] or [CH Down] to select the desired list.
SCAN ADD/DEL (TAG) KEY “SCAD”
➥Push to add channel to, or delete it from the current scan
group.
1. Push to indicate the scan group, then push [CH Up] or
[CH Down] to select the desired group.
2. Push to add or delete the channel to/from the selected
scan group.
3. Push and hold for 1 sec. to exit the scan group selection
mode.
➥Push this key while scan is paused (a signal is detected)
on a channel (except for priority channel,) the channel is
cleared from the scan group.
Depending on the setting, the cleared channel is added
to the scan group again after the scan is cancelled.
(Nuisance Delete function)
PRIORITY CHANNEL KEYS “PRA” “PRAR” “PRB” “PRBR”
➥Push to select Priority A or Priority B channel.
➥Push and hold [Prio A (Rewrite)] or [Prio B (Rewrite)] for
1 sec. to rewrite the Priority A or Priority B channel for the
operating channel.
7

8
2
PANEL DESCRIPTION
MEMORY CH 1/2/3/4 KEYS “CH1” “CH2” “CH3” “CH4”
Push to select the memory channels 1 to 4 directly.
MONI KEY “MON”
➥Push to mute and release the CTCSS (DTCS) or 2-tone
squelch mute. Open any squelch/deactivate any mute
while pushing and holding this key. (LMR operation only)
➥Activates one of (or two of) the following functions on each
channel independently: (PMR operation only)
 •Pushandholdtoun-mutethechannel(audioisemitted;‘Audible’
condition).
 •Pushtomutethechannel(setsto‘Inaudible’only).
 •Pushafterthecommunicationisnishedtosenda‘resetcode’.
(5-tone/BIIS operation only)
NOTE:Theun-mutecondition(‘Audible’condition)may
automaticallyreturntothemutecondition(‘Inaudible‘
condition) after a specified period.
LIGHT KEY “LIGT”
Pushtoturnthetransceiver’sbacklightONtemporarilyonly
when the backlight function is turned OFF in user set mode.
LOCK KEY “LOCK”
➥Push and hold for 1 sec. to electronically lock all program-
mable keys for preventing accidental frequency changes
and unnecessary function access except the following:
[PTT], [Call] (incl. Call A and Call B), [Moni(Audi)],
[Light], [Emergency], [Surveillance], [Lone Worker] and
[OPT 1/2/3].
➥
Push and hold for 1 sec. again to turn the lock function OFF.
LONE WORKER KEY “LONE”
Push to turn the Lone Worker function ON or OFF.
•IftheLoneWorkerfunctionisactivated,theEmergencyfunctionis
automatically turned ON after the specified time period has passed
with no operation is performed.
HIGH/LOW KEY “H/L”
Push to select the transmit output power temporarily or per-
manently, depending on the pre-setting.
•Askyourdealerfortheoutputpowerlevelforeachselection.
C.TONE CH SELECT KEY “T SEL”
Push to enter the continuous tone channel selection mode.
Then select the desired tone frequency/code setting with [CH
Up] or [CH Down]. After the selection, push this key again to
set.
TALK AROUND KEY “TA”
Push to turn the talk around function ON and OFF.
•Thetalkaroundfunctionequalizesthetransmitfrequencytothe
receive frequency for transceiver-to-transceiver communication.
WIDE/NARROW KEY “W/N”
Push to toggle the IF bandwidth between wide and narrow.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

2PANEL DESCRIPTION
DTMF AUTODIAL KEY “DTMA”
Push to enter the DTMF channel selection mode. Then select
the desired DTMF channel using [CH Up]/[CH Down]. After
selecting the DTMF channel, push again to transmit the
selected DTMF code.
RE-DIAL KEY “DTMR”
Push to transmit the last-transmitted DTMF code.
CALL KEYS “CALL” “CALA” “CALB”
Push to transmit a 2/5-tone or BIIS ID code.
•Calltransmissionisnecessarybeforeyoucall anotherstation
depending on your signaling system.
•[CallA]and/or[CallB]maybeavailablewhenyoursystememploys
selective‘Individual/Group’calls.Askyourdealerwhichcallis
assigned to each key.
EMERGENCY KEY “EMR”
Push and hold to transmit the emergency call.
•Theemergencycalltransmitswithbeeps;thedisplaydoesnot
change.
•Thetransceivercantransmittheemergencycallsilentlyorwiththe
display changes depending on the pre-setting. Ask your dealer for
details.
•Ifyouwanttocanceltheemergencycall,pushandholdthekey
again before transmitting the call.
•Theemergencycallistransmittedonetimeonlyorrepeatedlyuntil
receiving a control code, depending on the pre-setting.
SURVEILLANCE KEY “SURV”
Push to turn the surveillance function ON or OFF.
When this function is turned ON, the beep is not emitted and
the LCD backlight does not light when a signal is received or
a key is pushed, etc.
TX CODE ENTER KEYS “TXCE”
Push to enter the ID code edit mode directly, for both 5-
tone and MSK. Then set the desired digit using [CH Up]/[CH
Down]. (p. 15)
TX CODE CHANNEL SELECT KEY “TXC”
Push to enter the TX code channel selection mode. Then set
the desired channel using [CH Up]/[CH Down]. (pp. 14, 15)
TX CODE CHANNEL UP/DOWN KEYS “TXCU” “TXCD”
Push to select a TX code channel directly.
ID-MEMORY SELECT KEY “IDMS”
➥Recalls detected ID codes.
 •Push thiskey,then select theID code using [CH Up]/[CH
Down].
 •Upto5ID’sarememorized.
➥Pushandholdfor1sec.toerasetheselectedID’s.
SCRAMBLER KEY “SCR”
Push to toggle the voice scrambler function ON and OFF.
9

10
2
PANEL DESCRIPTION
COMPANDER KEY “COMP”
Push to toggle the compander function ON and OFF.
The compander function reduces noise components from the
transmitting audio to provide clear communication.
USER SET MODE KEY “SET”
➥Push and hold for 1 sec. to enter user set mode.
 •Duringusersetmode,pushthiskeytoselectanitemthat is
enabled by your dealer, and change the value or condition using
push [CH Up]/[CH Down].
➥Push and hold this key for 1 sec. again to exit user set
mode.
OPT OUT KEYS “OP1” “OP2” “OP3”
Push to control the output signal level from the optional unit
connector.
OPT MOMENTARY KEYS “O1M” “O2M” “O3M”
Push to control the output signal level from the optional unit
connector.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

■Turning power ON
Prior to using the transceiver for the first time, the battery
pack must be fully charged for optimum life and operation.
(p. 19)
qRotate [VOL] to turn the power ON.
wIf the transceiver is programmed for a start up password,
input the digit codes as directed by your dealer.
 •10-keypadcanbeusedforpasswordinputdependingon
version.
 •Thekeysinthetablebelowcanbeusedforpasswordinput.
 •Thetransceiverdetectsnumbersinthesameblockasidentical.
Therefore “01234” and “56789” are the same.
KEY
NUMBER 0
5
4
9
3
8
2
7
1
6
(Side1)
P0P1P2P3
eWhen the “PASSWORD” indication does not clear after
inputting 6 digits, the input code number may be incorrect.
Turn the power off and start over in this case.
■Channel selection
Several types of channel selections are available. Methods
may differ according to your system set up.
NON-ZONE TYPE:
To select the desired operating channel:
•Push[CHUp]or[CHDown].
•Rotate[ROTARYSELECTOR]*.
- Up to pre-programmed 16 channels can be selected.
•Pushoneof[MR-CH1]to[MR-CH4].
ZONE TYPE:
To select the desired zone:
•Push[Zone],thenpush[CHUp]or[CHDown].
•Push[ZoneUp]or[ZoneDown].
•Rotate[ROTARYSELECTOR]*.
- Up to pre-programmed 16 zones can be selected.
DVoting operation
The transceiver automatically starts scanning when a zone,
specified for the voting operation, is selected.
The voting scan detects the S-meter of the repeater and
automatically selects the strongest station.
3BASIC OPERATION
11

12
3
BASIC OPERATION
AUTOMATIC SCAN TYPE:
Channel setting is not necessary for this type. When turning
power ON, the transceiver automatically starts scanning.
Scanning stops when receiving a call.
*Dependingonthepre-setting.
When [Rotary selector] selects “Operating channel,” [CH Up]/[CH
Down] are not available.
 When[Rotaryselector]selects“Operatingzone,”[Zone]/[ZoneUp]/
[ZoneDown]arenotavailable.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

■Call procedure
When your system employs tone signaling (excluding CTCSS
and DTCS), this call procedure may be necessary prior to voice
transmission. The tone signaling employed may be a selective
calling system which allows you to call specific station(s) only
and prevent unwanted stations from contacting you.
qSelect the desired TX code channel or 2/5-tone code ac-
cordingtoyourSystemOperator’sinstructions.
 •Thismaynotbenecessarydependingonprogramming.
 •Refertopages14or15forselection.
wPush [Call] (assigned to one of the dealer programmable
keys)
eAfter transmitting, the remainder of your communication
can be carried out in the normal fashion.
Selective calling Non-selective calling
■Receiving and transmitting
CAUTION: Transmitting without an antenna may damage
the transceiver. See page 1 for accessory attachments.
Receiving:
qRotate [VOL] to turn the power ON.
wPush [CH Up] or [CH Down], or rotate [ROTARY SELEC-
TOR]* toselect theconventional systemchannel, inse-
quence.
 *Dependingonthepre-setting.
eWhen receiving a call, adjust the audio output level to a
comfortable listening level.
NOTE: When a matched RX code signal is received, audio
from the microphone is automatically transmitted for a
speciedtimeperiod.*
*Dependingonthepresetting.Askyourdealerfordetails.
Transmitting:
Wait for the channel to become clear to avoid interference.
qWhile pushing and holding [PTT], speak into the micro-
phone at a normal voice level.
 •Whenatonesignalingsystemisused,thecallprocedurede-
scribed at the previous page may be necessary.
wRelease [PTT] to return to receive.
NOTE: To maximize the audio quality of your signal;
1. Pause briefly after pushing [PTT].
2. Hold the microphone 5 to 10 cm (2 to 4 inches) from
your mouth, then speak into the microphone at a normal
voice level.
3BASIC OPERATION
13

14
3
BASIC OPERATION
DTransmitting notes
• Transmit inhibit function
The transceiver has several inhibit functions which restrict
transmission under the following conditions:
-Thechannelisinmutecondition(‘Inaudible’condition;
“ ” (Audible indicator) does not appear.)
- The channel is busy.
- Un-matched (or matched) CTCSS is received.
(Depending on the pre-setting.)
-Theselectedchannelisa‘receiveonly’channel.
• Time-out timer
After continuous transmission for the pre-programmed time
period, the time-out timer starts, causing the transceiver to
stop transmitting.
• Penalty timer
Once the time-out timer starts, transmission is further inhib-
ited for a period determined by the penalty timer.
DTX code channel selection
If the transceiver has [TX Code CH Select] assigned to it,
the indication can be toggled between the operating channel
number (or name) and TX code channel number (or name).
When the TX code channel number (or name) is displayed,
[CH Up] or [CH Down] selects the TX code channel.
USING [TX CODE CH SELECT] KEY:
qPush [TX Code CH Select]— a TX code channel number
(or name) appears.
wPush [CH Up] or [CH Down] to select the desired TX code
channel.
eAfter selecting, push [TX Code CH Select] to set.
 •Returntothestand-bymode.
rPush [Call] to transmit the selected TX code.
USING [TX CODE CH UP]/[TX CODE CH DOWN] KEY:
If the transceiver has a [TX Code CH Up] or [TX Code CH
Down] key assignment, the programmed TX code channel
can be selected directly when pushed.
☞Continue to the next page
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

3BASIC OPERATION
DTX code number edit (PMR operation only)
If the transceiver has [TX Code CH Select] or [TX Code
Enter] assigned to it, TX code contents can be edited within
the allowable digits.
USING [TX CODE CH SELECT] KEY:
qPush [TX Code CH Select] to enter the TX code channel
selection mode.
 •SelectthedesiredoperatingchannelbeforeenteringtheTX
code channel selection mode if necessary.
wPush [TX Code CH Select] for 1 sec. to enter the TX code
edit mode.
 •Thedigittobeeditedblinks.
ePush [TX Code CH Select] to select the desired digit to be
edited.
rPush [CH Up]/[CH Down] to select the desired digit.
tPush [TX Code CH Select] to set. The digit to the right will
blink automatically.
yRepeat rand tto edit all allowable digits.
uAfter editing, push [TX Code CH Select] to set.
 •Returntothestand-bymode.
iPush [Call] to transmit.
USING [TX CODE ENTER] KEY:
qAfter pushing [TX Code CH Select], push [CH Up] or [CH
Down], or push [TX Code CH Up] or [TX Code CH Down]
to select the desired TX code channel.
wPush [TX Code Enter] to enter the TX code edit mode.
 •Thedigittobeeditedblinks.
ePush [TX Code Enter] to select the desired digit to be ed-
ited.
rPush [CH Up]/[CH Down] to select the desired digit.
tPush [TX Code Enter] to set. The digit to the right will blink
automatically.
yRepeat rand tto edit all allowable digits.
uAfter editing, push [TX Code Enter] to set.
 •Returntothestand-bymode.
iPush [Call] to transmit.
DDTMF transmission
If the transceiver has [DTMF Autodial] assigned to it, the
automatic DTMF transmission function is available. Up to 8
DTMF channels are available.
qPush [DTMF Autodial]— a DTMF channel appears.
wPush [CH Up] or [CH Down] to select the desired DTMF
channel.
ePush [DTMF Autodial] to transmit the DTMF code.
15