INSTRUCTION MANUAL
144 MHz FM TRANSCEIVER
i2100H
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FOREWORD
Thank you for purchasing this Icom product. The IC-2100H/-T 144 MHz FM TRANSCEIVER is designed and built with Icom’s superior technology and craftsmanship. With proper care this product should provide you with years of trouble-free operation.
IMPORTANT
READ ALL INSTRUCTIONS carefully and com-
pletely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL—This in-
struction manual contains important operating instructions for the IC-2100H/-T.
EXPLICIT DEFINITIONS
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DEFINITION |
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RWARNING |
Personal injury, fire hazard or electric |
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shock may occur. |
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CAUTION |
Equipment damage may occur. |
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NOTE |
If disregarded, inconvenience only. No risk |
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of personal injury, fire or electric shock. |
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CAUTIONS
RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock.
RWARNING! NEVER operate the transceiver while driving a vehicle. Safe driving requires your full attention— anything less may result in an accident.
NEVER connect the transceiver to a power source of more than 16 V DC. This will ruin the transceiver.
NEVER connect the transceiver to a power source using reverse polarity. This will ruin the transceiver.
NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged.
NEVER place the transceiver where normal operation of the vehicle may be hindered or where it could cause bodily injury.
NEVER let objects impede the operation of the cooling fan on the rear panel.
DO NOT push the PTT when not actually desiring to transmit.
DO NOT allow children to play with any radio equipment containing a transmitter.
During mobile operation, DO NOT operate the transceiver without running the vehicle’s engine. When transceiver power is ON and your vehicle’s engine is OFF, the vehicle’s battery will soon become exhausted.
BE CAREFUL! The transceiver will become hot when operating it continuously for long periods.
AVOID using or placing the transceiver in direct sunlight or in areas with temperatures below –10°C (+14°F) or above +60°C (+140°F).
AVOID the use of chemical agents such as benzine or alcohol when cleaning, as they can damage the transceiver’s surfaces.
USE Icom microphones only (supplied or optional). Other manufacturer’s microphones have different pin assignments and may damage the transceiver if attached.
For U.S.A. only
Caution: Changes or modifications to this transceiver, not expressly approved by Icom Inc., could void your authority to operate this transceiver under FCC regulations.
SUPPLIED ACCESSORIES
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DC power cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Mobile mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . 1Microphone (HM-118T*) . . . . . . . . . . . . . . . . . . . . . . . . . 1Fuse (20 A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Mounting screws, nuts and washers . . . . . . . . . . . . . 1 setMic hanger (depending on version) . . . . . . . . . . . . . . . . 1
*The microphone illustrated above is the HM-118T. HM-97 . . . . . . . . . . . . Europe versions
HM-98S . . . . . . . . . . . USA, Taiwan versions HM-118 . . . . . . . . . . . Asia, Australia versions
HM-118T . . . . . . . . . . Thailand, Latin America, Korea versions HM-118TA . . . . . . . . . some USA versions
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TABLE OF CONTENTS
FOREWORD ................................................................................... |
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IMPORTANT .................................................................................... |
ii |
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EXPLICIT DEFINITIONS ................................................................. |
ii |
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CAUTIONS ...................................................................................... |
ii |
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SUPPLIED ACCESSORIES ........................................................... |
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TABLE OF CONTENTS .................................................................. |
iv |
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1 |
PANEL DESCRIPTION .......................................................... |
1–8 |
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■ Front panel .............................................................................. |
1 |
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■ Function display ...................................................................... |
3 |
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■ Rear panel .............................................................................. |
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■ Microphone ............................................................................. |
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■ Microphone keypad ................................................................. |
7 |
2 |
INSTALLATION .................................................................... |
9–11 |
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■ Location .................................................................................. |
9 |
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■ Using the mounting bracket .................................................... |
9 |
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■ Battery connection ................................................................ |
10 |
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■ DC power supply connection ................................................ |
10 |
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■ Antenna installation ............................................................... |
11 |
3 SETTING A FREQUENCY ................................................. |
12–16 |
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■ Preparation ........................................................................... |
12 |
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■ Lock functions ....................................................................... |
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■ Using the tuning dial ............................................................. |
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■ Using the [Y]/[Z] keys .......................................................... |
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■ Tuning step selection ............................................................ |
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■ Using the keypad .................................................................. |
16 |
4 BASIC OPERATION .......................................................... |
17–19 |
■ Receiving .............................................................................. |
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■ Monitor function .................................................................... |
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■ Audio mute function .............................................................. |
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■ Transmitting .......................................................................... |
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■ Selecting output power ......................................................... |
18 |
■ One-touch PTT function ........................................................ |
19 |
5 REPEATER OPERATION .................................................. |
20–24 |
■ Accessing a repeater ............................................................ |
20 |
■ Subaudible tones .................................................................. |
22 |
■ Offset frequency .................................................................... |
23 |
■ Auto repeater ........................................................................ |
24 |
■ Repeater lockout ................................................................... |
24 |
6 MEMORY OPERATION ...................................................... |
25–30 |
■ General description ............................................................... |
25 |
■ Memory channel selection .................................................... |
25 |
■ Programming a memory channel .......................................... |
26 |
■ Programming a memory channel via the microphone ........... |
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■ Transferring memory contents .............................................. |
28 |
■ Clearing a memory ................................................................ |
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■ Alphanumeric display ............................................................ |
30 |
7 CALL CHANNEL OPERATION ......................................... |
32–33 |
■ Calling up the call channel .................................................... |
32 |
■ Transferring call channel contents ........................................ |
32 |
■ Programming the call channel .............................................. |
33 |
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8 SCRATCH PAD MEMORY ................................................. |
34–35 |
■ What is scratch pad memory? .............................................. |
34 |
■ Calling up a scratch pad memory ......................................... |
34 |
■ Transferring scratch pad memory contents ........................... |
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9 SCAN OPERATION ........................................................... |
36–41 |
■ Scan types ............................................................................ |
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■ Scan start/stop ...................................................................... |
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■ Programming scan edges ..................................................... |
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■ Programming scan edges via the microphone ...................... |
39 |
■ Skip channel setting .............................................................. |
40 |
■ Scan resume condition ......................................................... |
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10 PRIORITY WATCH ............................................................ |
42–43 |
■ Priority watch types ............................................................... |
42 |
■ Priority watch operation ........................................................ |
43 |
11 DTMF MEMORY ENCODER ............................................. |
44–45 |
■ Programming a DTMF code .................................................. |
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■ Transmitting a DTMF code .................................................... |
45 |
■ DTMF speed ......................................................................... |
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12 POCKET BEEP AND TONE SQUELCH ........................... |
46–48 |
■ Pocket beep operation .......................................................... |
46 |
■ Tone operation ...................................................................... |
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■ Tone scan .............................................................................. |
48 |
13 WIRELESS OPERATION .................................................. |
49–54 |
■ Connection ............................................................................ |
49 |
■ HM-90 WIRELESS MICROPHONE |
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■ EX-1759 installation .............................................................. |
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■ HM-90 switches .................................................................... |
51 |
■ Microphone address ............................................................. |
54 |
14 OTHER FUNCTIONS ......................................................... |
55–59 |
■ Beep tones ON/OFF ............................................................. |
55 |
■ Time-out timer ....................................................................... |
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■ Auto power-off ....................................................................... |
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■ Squelch delay ....................................................................... |
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■ Microphone [F-1]/[F-2] keys .................................................. |
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■ Demonstration display .......................................................... |
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■ Display color ......................................................................... |
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■ Display dimmer ..................................................................... |
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■ FM narrow mode ................................................................... |
58 |
■ Data cloning .......................................................................... |
59 |
15 MAINTENANCE ................................................................. |
60–62 |
■ Troubleshooting .................................................................... |
60 |
■ Fuse replacement ................................................................. |
62 |
■ Partial CPU resetting ............................................................ |
62 |
■ Resetting the CPU ................................................................ |
62 |
16 SPECIFICATIONS ................................................................... |
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17 OPTIONS ........................................................................... |
64–65 |
18 MODE ARRANGEMENT ................................................... |
66–67 |
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1 PANEL DESCRIPTION
■ Front panel
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DUP |
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PRIO AO BUSY |
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MUTE |
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NAR |
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SKIP |
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M/ CALL |
V/ MHz |
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q SELECT MEMORY/MEMORY WRITE SWITCH [S.MW(MW)]
Selects a memory channel for programming. (p. 26)
Programs selected memory when pushed and held. (p. 27)
w POWER SWITCH [PWR]
Turns power ON and OFF when pushed momentarily. e SQUELCH CONTROL [SQL]
Varies the squelch level. (p. 18)
•The RF attenuator activates and increases the attenuation when rotated clockwise to the center position and further.
r VOLUME CONTROL [VOL]
Adjusts the audio level. (p. 18) t TUNING DIAL
Selects the operating frequency (p. 15), the memory channel (p. 26), the contents of the set mode display and the scanning direction (p. 37).
y VFO/MHz SWITCH [V/MHz(SCAN)]
Selects and toggles VFO mode and the 1 MHz/10 MHz/TS tuning display. (p. 15)
Starts a scan when pushed and held for 1 sec. (p. 37)
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u MEMORY/CALL CHANNEL SWITCH [M/CALL(PRIO)]
Selects and toggles memory mode or the call channel. (pgs. 26, 32)
Activates the priority watch function when pushed and held. (p. 42)
iTONE/TONE SCAN SWITCH [TONE(T-SCAN)]
Each push selects a tone function. (p. 46)
•Tone encoder, pocket beep, tone squelch or tone function OFF can be selected.
Push and hold to start/stop the tone scan function.
(p. 48)
o OUTPUT POWER/DUPLEX SWITCH [LOW(DUP)]
Each push changes the output power selection. (p. 19)
•There are 3 output powers available: low, mid and high
(the IC-2100-T Thailand and IC-2100H Taiwan versions have only 2 output powers).
Push and hold to select a duplex setting. (p. 21)
•There are 3 duplex settings available: minus duplex (“DUP–” appears), plus duplex (“DUP” appears) and simplex (no indicator appears).
!0MONITOR/ALPHANUMERIC SWITCH [MONI(ANM)]
Toggles squelch opened and closed when pushed. (p. 18)
In memory and call channel mode, toggles the alphanumeric channel indication ON and OFF. (p. 31)
PANEL DESCRIPTION 1
!1SET/LOCK SWITCH [SET(LOCK)]
Selects set mode when pushed.
Toggles the lock function ON and OFF when pushed and held. (p. 14)
!2MICROPHONE CONNECTOR
Connects the supplied microphone. (p. 7)
D Microphone connector (front panel view)
+8 V DC output
Frequency up/downNC (no connection)
PTT
GND (microphone ground)
MIC (microphone input)GND
NC (no connection)
3
1 PANEL DESCRIPTION
■ Function display
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T X |
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T SQL |
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PRIO AO BUSY |
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MUTE |
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MID |
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LOW |
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SKIP |
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q TRANSMIT INDICATOR |
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in use. (p. 46) |
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Appears while transmitting. (p. 19) |
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r PRIORITY WATCH INDICATOR (p. 42) |
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Flashes while transmitting with the one-touch PTT func- |
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tion. (p.20) |
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the watch is paused. |
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w DUPLEX INDICATORS (p. 21) |
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t AUTO POWER-OFF INDICATOR (p. 56) |
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“DUP–” or “DUP” appears during semi-duplex operation |
Appears while the auto power-off function is in use. |
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(repeater operation). |
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y BUSY INDICATOR (p. 18) |
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e TONE INDICATORS |
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Appears when a signal is being received or the squelch is |
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“T” appears while the subaudible tone encoder is in use. |
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open ([MONI] is pushed). |
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(p. 21) |
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u FREQUENCY READOUT |
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“T SQL” appears while the tone squelch function is in |
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Shows the operating frequency, alphanumeric names, set |
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use. (p.47) |
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mode contents, etc. |
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“T SQLS” appears while the pocket beep function is |
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• Frequency decimal point flashes while scanning. (p. 37) |
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•“d” appears in place of the 100 MHz digit while the DTMF memory function is in use. (p. 44)
iS/RF INDICATORS
Show the relative signal strength while receiving signals. (p. 18)
Show the output power while transmitting. (p. 19)
o MEMORY INDICATOR (p.26)
Appears when memory mode is selected.
!0MEMORY CHANNEL READOUTS
Show the selected memory channel numbers.
A capital “L” appears while the frequency lock function is in use. (p. 14)
“C” appears while the call channel is selected. (p. 32)
One of “L1” to “L3” appears when a simplex scratch pad memory is selected. (p. 34)
One of “r1” to “r3” appears when a duplex scratch pad memory is selected. (p. 34)
A small “c” appears when VFO mode is selected from
the call channel or a scratch pad memory.
!1SKIP INDICATOR
Appears when the displayed memory channel is specified as a skip channel. (p. 40)
!2SWITCH INDICATORS
Indicate the function(s) of the front panel switches directly below the function display.
PANEL DESCRIPTION 1
!3OUTPUT POWER INDICATORS (p. 19)
“MID” appears when mid output power is selected.
•The IC-2100T Thailand and IC-2100H Taiwan versions have no mid output power.
“LOW” appears when low output power is selected
Neither indicator appears when high output power is se-
lected.
!4NARROW FM MODE INDICATOR
Appears when narrow FM mode is selected (available with the Europe version only; p. 58).
!5AUDIO MUTE INDICATOR
Appears when the audio mute function is activated via microphone control.
• This function is cancelled when any switch or control is operated.
5
1 PANEL DESCRIPTION
■ Rear panel
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q SPEAKER JACK [SP]
Accepts an 8 Ω speaker.
• Audio output power is more than 2.4 W.
w POWER RECEPTACLE [DC13.8V]
Accepts 13.8 V DC ±15% with the supplied DC power cable.
• Current of 12 A or greater is required.
NOTE: DO NOT use a cigarette lighter socket as a power source when operating in a vehicle. The plug may cause voltage drops and ignition noise may be superimposed onto transmit or receive audio.
e ANTENNA CONNECTOR [ANT]
Connects a 50 Ω antenna with a PL-259 connector and a 50 Ω coaxial cable.
6
■ Microphone (HM-98S*)
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VFO |
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MONI 1 |
SCAN 2 |
PRIO 3 |
CLR A |
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D-OFF |
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MID 5 |
LOW 6 |
SET B |
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TONE |
TSQLS TSQL |
T-OFF |
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DUP– 7 |
DUP+ 8 |
SIMP 9 |
ENT C |
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TONE-1 |
TONE-2 |
16KEY LOCK MUTE |
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* A different microphone may be supplied depending on transceiver ver-
qUP/DOWN SWITCHES [Y]/[Z]
Push either switch to change operating frequency, memory channel, set mode contents, etc. (pgs. 15, 26)
Push and hold either switch to start scanning. (p. 37)
wPTT SWITCH
Push and hold to transmit; release to receive.
Toggles between transmitting and receiving while the one-touch PTT function is in use. (p. 20)
PANEL DESCRIPTION 1
e VFO SWITCH [VFO(LOCK)]
Push to select VFO mode.
Push and hold to toggle the lock function ON and OFF. (p. 14)
r MEMORY SWITCH [MR(CALL)]
Push to select memory mode. (p. 26)
Push and hold to select the call channel. (p. 32) t ACTIVITY INDICATOR
Lights red while any key is pushed (except [FUNC] or [DTMF-S].
Lights red while transmitting.
Lights green while the one-touch PTT function is in use. y NULL SWITCH [B]
No function.
u FUNCTION SWITCHES [F-1]/[F-2] (p. 57)
Assign your desired key function from the front panel switches.
•Default settings are [LOW] for [F-1] ([DUP] when pushed and held) and [TONE] for [F-2] ([T-SCAN] when pushed and held).
iFUNCTION INDICATOR
Lights orange while [FUNC] is activated—indicates the secondary function of switches can be accessed.
Lights green when [DTMF-S] is activated—DTMF sig-
nals can be transmitted with the keypad. o KEYPAD
Used for controlling the transceiver, transmitting DTMF signals, etc. See the following 2 pages for details.
7
1 PANEL DESCRIPTION
■ Microphone keypad
KEY |
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SECONDARY FUNCTION (after |
FUNC ) |
OTHER FUNCTIONS |
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MONI 1 |
Toggles between opening and closing the |
No secondary function. |
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squelch. |
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SCAN 2 |
Starts and stops scanning. |
(p. 37) |
No secondary function. |
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PTT-M |
Starts and stops priority watch. |
(p. 42) |
Turns the one-touch PTT function ON and |
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PRIO 3 |
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OFF. |
(p. 20) |
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HIGH 4 |
Selects high output power. |
(p. 19) |
No secondary function. |
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DTMF-S : |
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MID 5 |
Selects mid output power. |
(p. 19) |
No secondary function. |
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Transmit the appropriate |
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DTMF code or push [0] to |
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DTMF |
Selects low output power |
(p. 19) |
Turns the DTMF memory encoder function |
[9], [A] to [D] to transmit the |
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LOW 6 |
DTMF |
memory contents |
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ON. |
(p. 44) |
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when the DTMF memory |
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TONE |
Selects –duplex. |
(p. 21) |
Turns the subaudible tone encoder ON. |
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encoder is activated. (p. 22) |
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DUP– 7 |
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TSQLS Selects + duplex. |
(p. 21) |
Turns the pocket beep function ON. |
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DUP+ 8 |
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(p. 46) |
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TSQL |
Selects simplex. |
(p. 21) |
Turns the tone squelch function ON. |
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SIMP 9 |
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TONE-2 |
No primary function. |
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0 |
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tone. |
(p. 22) |
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8
PANEL DESCRIPTION 1
KEY |
FUNCTION |
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SECONDARY FUNCTION (after |
FUNC ) |
OTHER FUNCTIONS |
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Clears a digit before entry. |
(p. 17) |
Writes VFO contents into the memory |
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MW |
Cancels the scan, priority watch or |
or call channel. |
(p. 29) |
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CLR A |
DTMF memory function. |
(pgs. 16, 37, |
Advances the memory channel number |
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43) |
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when continuously pushed after pro- |
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gramming is completed. |
(p. 28) |
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D-OFF |
Enters set mode and advances the set |
DTMF memory OFF. |
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SET B |
mode selection. |
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[A] to [D] transmit DTMF |
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memories. |
(p. 44) |
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Sets the keypad for numeral input |
Turns the subaudible tone encoder, pocket |
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T-OFF |
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(p. 17) |
beep or tone squelch OFF.(pgs. 21, 47, 46) |
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ENT C |
Decreases the set mode selection order |
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after entering set mode. |
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MUTE |
No primary function. |
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Mutes the audio. |
(p. 18) |
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• Mute function is released when any operation |
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D |
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is performed. |
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16KEY LOCK |
No primary function. |
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Locks the digit keys on the keypad (includ- |
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# |
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ing the A to D, # and M keys. |
(p. 14) |
After DTMF-S : |
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Transmit the |
appropriate |
TONE-1 |
No primary function. |
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Sends a 1750 Hz tone signal for 0.5 sec. |
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DTMF code. |
(p. 45) |
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M |
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9
2 INSTALLATION
■ Location
Select a location which can support the weight of the transceiver and does not interfere with driving in any way. We recommend the locations shown in the diagram below.
NEVER place the transceiver where normal operation of the vehicle may be hindered or where it could cause bodily injury.
NEVER place the transceiver where air bag deployment may be obstructed.
DO NOT place the transceiver where hot or cold air blows directly onto it.
AVOID placing the transceiver in direct sunlight.
• EXAMPLE INSTALLATION
■ Using the mounting bracket
Drill 4 holes where the mounting bracket is to be installed.
•Approx. 5.5–6 mm (3⁄16") when using nuts; approx. 2–3 mm (1⁄16") when using self-tapping screws.
Insert the supplied screws, nuts and washers through the mounting bracket and tighten.
Adjust the angle for the clearest view of the function display.
Nut
Spring washer
Flat washer
Mounting bracket
When using self-tapping screws
Mounting nut
Spring washer
10
■ Battery connection
NEVER connect the transceiver directly to a 24 V battery.
DO NOT use the cigarette lighter socket for power connections.
Attach a rubber grommet when passing the DC power cable
•CONNECTING TO A DC POWER SOURCE
• See p. 62 for fuse replacement.
Grommet
red |
− black |
Fuses |
− black |
red |
20 A |
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12 V
Supplied
DC power cable
INSTALLATION 2
■ DC power supply connection
Use a 13.8 V DC power supply with more than 12 A capacity.
Make sure the ground terminal of the DC power supply is grounded.
•CONNECTING TO A DC POWER SUPPLY
• See p. 62 for fuse replacement.
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DC power |
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supply 13.8 V |
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to an |
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AC |
− |
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outlet |
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Fuses |
− |
black |
20 A |
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red |
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11
2 INSTALLATION
■ Antenna installation
D Antenna location
To obtain maximum performance from the transceiver, select a high-quality antenna and mount it in a good location. A nonradial antenna should be used when using a magnetic mount.
Trunk-mount
Roof-mount antenna antenna (Drill a hole or use a magnetic mount.)
Gutter-mount antenna
D Antenna connector
The antenna uses a PL-259 connector.
• PL-259 CONNECTOR
30 mm
Slide the coupling ring down. Strip the cable
jacket and soft solder. |
Coupling ring |
10 mm (soft solder) |
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the |
cable as |
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Soft |
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shown at right. Soft sol- |
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solder |
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der the center conduc- |
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tor. |
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1–2 mm |
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the |
connector |
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solder solder |
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body on and solder it. |
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Screw the coupling ring onto the connector body.
(10 mm ≈ 3⁄8 in)
12
SETTING A FREQUENCY 3
■ Preparation
D Turning power ON/OFF
NOTE: Before operating the transceiver for the first time it’s a good idea to reset the transceiver’s CPU. This will ensure that all transceiver settings are at their defaults. See p. 62 for CPU resetting details.
Push [PWR] for 1 sec. to turn power ON or OFF.
Push [PWR] for 1 sec.
D VFO and memory modes
The transceiver has 2 basic operating modes: VFO mode and memory mode.
Push [V/MHz] to select VFO mode when the transceiver is not in VFO mode.
•If VFO mode is already selected, the digits below 100* kHz disappear. In this case, push [V/MHz] again (or push twice or 3 times depending on version).
*The digits below 1 or 10 MHz disappear for some versions.
1 |
5 |
9 |
1 |
5 |
9 |
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M |
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VFO mode is selected. |
Appears when memory mode |
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is selected. |
Push [VFO] to select VFO mode.
VFO
Note that in this manual, sections beginning with a microphone icon (as above), designate operation via the HM-98S microphone.
13
3 SETTING A FREQUENCY
■ Lock functions
To prevent accidental frequency changes and unnecessary function access, use the lock function. The transceiver has 2 different lock functions.
D Frequency lock
This function locks the tuning dial and switches electronically and can be used together with the microphone lock function.
Push and hold [(SET)LOCK] until “L” appears in the memory channel readout to activate the function.
•To cancel the function, push and hold [LOCK] until “L” disappears.
•[PTT], [MONI], [VOL] and [SQL] can be used while the frequency lock function is in use. Also, TONE-1, TONE-2, DTMF tones or DTMF memory contents can be transmitted from the microphone.
1 |
5 |
9 |
“L” appears while the frequency |
lock function is in use.
Push and hold [(VFO)LOCK] for 1 sec. to toggle the funcLOCK tion ON and OFF.
D Microphone keypad lock
This function locks the microphone keypad.
16 KEY LOCK
#
Push [FUNC] then [16KEYLOCK] to toggle the microphone keypad lock function ON and OFF.
•[PTT] and the 7 keys on the upper half of the microphone can be used.
•All switches on the transceiver can be used.
•The keypad lock function is released when the power is turned OFF then ON again.
14
■ Using the tuning dial
Rotate the tuning dial to set the frequency.
•If VFO mode is not selected, push [V/MHz] to select VFO mode.
•The frequency changes according to the selected tuning steps. (p. 16)
To change the frequency in 1 MHz (10 MHz for some versions) steps, push [V/MHz], then rotate the tuning dial.
•Pushing [V/MHz] for 1 sec. starts a scan function. If this happens, push [V/MHz] again to stop the scan.
The display shows that the 1 MHz
1 |
5 |
9 |
tuning step is selected. |
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SETTING A FREQUENCY 4
■ Using the [Y]/[Z] keys
Push [Y] or [Z] to select the desired frequency.
YZ • If VFO mode is not selected, push [VFO] to select it.
•The frequency changes according to the selected tuning steps. (p. 16)
•Pushing [Y] or [Z] for more than 0.5 sec. activates a scan. If this happens, push [Y] or [Z] again to cancel the scan.
NOTE: 1 MHz steps cannot be used via the [Y]/[Z] keys.
15
3 SETTING A FREQUENCY
■ Tuning step selection USING SET MODE
Tuning steps are the minimum frequency change increments when you rotate the tuning dial or push the [Y]/[Z] keys on the microphone. The following tuning steps are available:
• 5 kHz |
• 10 kHz |
• 12.5 kHz |
• 15 kHz |
• 20 kHz |
• 25 kHz |
• 30 kHz |
• 50 kHz |
NOTE: For convenience, select a tuning step that matches the frequency intervals of repeaters in your area.
Push [V/MHz] to select VFO mode, if necessary.
Push [SET] one or more times until “TS” appears as shown below.
•Pushing [MONI] reverses the order of selection.
•Cancel the DTMF memory function in advance, if necessary.
Rotate the tuning dial to select the tuning step.Push [V/MHz] to exit set mode.
1 |
5 |
9 |
1 |
5 |
9 |
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15 kHz tuning step 25 kHz tuning step
SET
B
Ä Push [VFO] to select VFO mode, if necessary.
ÅPush [FSET] one or more times until “TS” appears as shown below left.
•Push [ENT] to reverse the order of selection.
•Cancel the DTMF memory function in advance, if necessary. (p. 44)
Ç Push [Y] or [Z] to select the tuning step.
É Push [CLR] to exit set mode.
16
■ Using the keypad
The frequency can be directly set via numeral
ENT |
keys on the microphone. |
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C |
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Ä Push [VFO] to select VFO mode, if necessary. Å Push [ENT] to activate the keypad for digit input.
SETTING A FREQUENCY 3
ÇPush 6 keys to input a frequency.
•When a digit is mistakenly input, push [ENT] to clear the input, then repeat input from the 1st digit.
•Pushing [CLR] clears input digits and retrieves the frequency.
ÉPush [Y] or [Z] to make adjustments below the 10 kHz digit, if desired.
[EXAMPLE]: Setting the frequency to 145.3625 MHz.
VFO |
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ENT C |
MONI 1 |
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HIGH 4 MID 5 PRIO 3 LOW 6 |
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SCAN 2 |
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1 |
5 |
9 |
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9 |
1 |
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9 |
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9 |
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17
4 BASIC OPERATION
■ Receiving
Push [PWR] for 1 sec. to turn power ON.
Set the audio level.
Push [MONI] to open the squelch.
Rotate the [VOL] control to adjust the audio output level.
Push [MONI] again to close the squelch.
Set the squelch level.
Rotate [SQL] fully counterclockwise in advance.
Rotate [SQL] clockwise until the noise just disappears.
When interference is received, rotate [SQL] clockwise again for attenuator operation.
Set the operating frequency. (p. 15)
When receiving a signal on the set frequency, squelch opens and the transceiver emits audio.
•“BUSY” appears and the S/RF indicator shows the relative signal strength for the received signal.
BUSY
1
Appears when receiving
5 9
CONVENIENT
RF attenuator: The transceiver has an RF attenuator related to the [SQL] setting. The attenuator is automatically activated when [SQL] is rotated clockwise past the 12 o’clock position. Approx. 10 dB attenuation is obtained at full rotation.
■ Monitor function
This function is used to listen to weak signals without disturbing the squelch setting or to open the squelch manually even when mute functions such as the tone squelch are in use.
Push [MONI] to open the squelch.
•Push [MONI] again to cancel the function.
•While duplex is ON for repeater operation, the transmitting frequency can be monitored with [MONI].
Push [ MONI] to open the squelch.
MONI • Push [ MONI] again to cancel the function.
■ Audio mute function
This function temporarily mutes the audio without disturbing the volume setting.
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Ä Push [FUNC] then [HMUTE] to mute audio sig- |
MUTE |
nals. |
H |
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•“MUTE” appears.
ÅPush [ECLR] (or any other key) to cancel the function.
•“MUTE” disappears.
18