INSTRUCTION MANUAL

144MHz FM TRANSCEIVER
TH-K2AT TH-K2E TH-K2ET 430MHz FM TRANSCEIVER TH-K4AT TH-K4E
B62-1696-00 (K, K2, E, E3, M, M2) 01 00

NOTICE TO THE USER

One or more of the following statements may be applicable for this equipment.

FCC WARNING

This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made.
INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY THE FCC
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 reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can generate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that the 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 correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. Consult the dealer for technical assistance.
MODELS COVERED BY THIS MANUAL
The models listed below are covered by this manual. TH-K2AT, TH-K2E, TH-K2ET TH-K4AT, TH-K4E

MARKET CODES

Kn: The Americas En: Europe Mn: General (Where n represents a variation number.) The market code is printed on the bar-code label of the carton box. Refer to the product specifications {pages 122 ~ 133} for information on the available operating frequencies within each model. For accessories supplied with each model, refer to pages vii ~ ix.

PRECAUTIONS

Please observe the following precautions to prevent fire, personal injury, or transceiver damage: Do not transmit with high output power for extended periods. The transceiver may overheat. Do not modify this transceiver unless instructed by this manual or by KENWOOD documentation. When using a regulated power supply, connect the specified DC cable (option) to the DC IN jack on the transceiver. The supply voltage must be between 12 V and 16 V to prevent damaging the transceiver. When connecting the transceiver to a cigarette lighter socket in a vehicle, use the specified cigarette lighter cable (option). Do not expose the transceiver to long periods of direct sunlight nor place it close to heating appliances. Do not place the transceiver in excessively dusty, humid, or wet areas, nor on unstable surfaces. If an abnormal odor or smoke is detected coming from the transceiver, turn OFF the power immediately and remove the battery case or the battery pack from the transceiver. Contact your authorized KENWOOD dealer, customer service, or service station.

CONTENTS

NOTICE TO THE USER MODELS COVERED BY THIS MANUAL MARKET CODES PRECAUTIONS CONTENTS.. i THANK YOU... vi FEATURES... vi SUPPLIED ACCESSORIES.. vii WRITING CONVENTIONS FOLLOWED.. x PREPARATION... 1 INSTALLING THE PB-43N NI-MH BATTERY PACK.. 1 INSTALLING ALKALINE BATTERIES.. 2 INSTALLING THE ANTENNA.. 4 ATTACHING THE HAND STRAP (OTHER THAN TH-K2AT K/ K2). 4 INSTALLING THE BELT CLIP.. 5 CHARGING THE PB-43N NI-MH BATTERY PACK (OTHER THAN TH-K2AT K2/ M2, TH-K4AT M2).. 6 CONNECTING TO A CIGARETTE LIGHTER SOCKET.. 8 CONNECTING TO A REGULATED POWER SUPPLY.. 9 YOUR FIRST QSO... 10 FIRST QSO... 10 GETTING ACQUAINTED.. 12 KEYS AND CONTROLS.. 12 DISPLAY... 14 BASIC OPERATION... 17 Switching the Power ON/OFF.. 17 Adjusting the Volume... 17 Adjusting the Squelch... 18 Transmitting... 19 Selecting an Output Power.. 19 Selecting a Frequency.. 20 VFO Mode.. 20 MHz Mode.. 20 Direct Frequency Entry (TH-K2AT/ET/K4AT only).. 21

MENU SETUP... 24 WHAT IS A MENU?.. 24 MENU ACCESS... 24 MENU FUNCTION LIST... 26 ALPHABETICAL FUNCTION LIST.. 29 OPERATING THROUGH REPEATERS.. 31 OFFSET PROGRAMMING FLOW.. 32 Programming an Offset.. 32 Selecting an Offset Direction.. 32 Selecting an Offset Frequency. 33 Activating the Tone Function.. 34 Selecting a Tone Frequency.. 35 AUTOMATIC REPEATER OFFSET (TH-K2AT/ E/ ET ONLY).. 37 REVERSE FUNCTION.. 38 AUTOMATIC SIMPLEX CHECK (ASC).. 38 TONE FREQ. ID SCAN... 39 MEMORY CHANNELS.. 41 NUMBER OF MEMORY CHANNELS... 41 SIMPLEX & REPEATER OR ODD-SPLIT MEMORY CHANNEL?.. 42 Storing Simplex Frequencies or Standard Repeater Frequencies.. 44 Storing Odd-Split Repeater Frequencies. 45 Recalling a Memory Channel.. 46 Using the Tuning Control.. 46 Using a Numeric Keypad (TH-K2AT/ ET/ K4AT only).. 46 CLEARING A MEMORY CHANNEL.. 47 NAMING A MEMORY CHANNEL.. 48 MEMORY CHANNEL TRANSFER.. 50 Memory a VFO Transfer.. 50 Channel a Channel Transfer.. 50 CALL CHANNEL... 53 Recalling the Call Channel.. 53 Reprogramming the Call Channel.. 54 WEATHER ALERT (TH-K2AT K/ K2 ONLY).. 55 Programming the Weather Radio Frequency. 55
Enabling a Weather Alert.. 56 CHANNEL DISPLAY.. 57 SCAN... 59 NORMAL SCAN... 60 Band Scan.. 60 Program Scan... 61 Storing a Program Scan Frequency Range. 61 Performing Program Scan. 62 MEMORY SCAN... 63 All-Channel Scan.. 63 CALL SCAN.. 64 PRIORITY SCAN... 65 Programming Priority Channels.. 65 Using Priority Scan.. 65 MEMORY CHANNEL LOCKOUT.. 67 SCAN RESUME METHOD.. 68 SELECTIVE CALL.. 69 CTCSS AND DCS.. 69 CTCSS... 69 Using CTCSS.. 69 Selecting a CTCSS Frequency. 70 CTCSS Freq. ID Scan.. 72 DCS... 73 Using DCS.. 73 Selecting a DCS Code... 74 DCS Code ID Scan.. 75 DTMF FUNCTIONS.. 76 MANUAL DIALING (TH-K2AT/ ET/ K4AT ONLY). 76 DTMF TX Hold (TH-K2AT/ ET/ K4AT only). 77 AUTOMATIC DIALER.. 77 Storing a DTMF Number in Memory. 77 Transmitting a Stored DTMF Number.. 79 Adjusting the DTMF Tone Transmission Speed. 80 Adjusting the Pause Duration.. 80 DTMF KEY LOCK.. 81
OPERATOR CONVENIENCES.. 82 APO (AUTO POWER OFF)... 82 BATTERY LIFE.. 83 REMAINING BATTERY CAPACITY.. 83 BATTERY SAVER.. 84 BEAT SHIFT.. 85 BEEP FUNCTION... 85 BUSY CHANNEL LOCKOUT.. 86 FREQUENCY STEP SIZE... 86 LAMP... 88 LOCK FUNCTION.. 88 Tuning Control Unlock... 89 MICROPHONE PF KEYS (OPTIONAL).. 89 MONITOR... 91 NARROW BAND FM OPERATION.. 91 POWER-ON MESSAGE... 92 PROGRAMMABLE VFO... 93 TIME-OUT TIMER... 94 TX INHIBIT.. 95 TX POWER.. 95 VOX (VOICE-OPERATED TRANSMISSION).. 96 VOX Gain... 97 VOX Delay Time.. 99 VOX on Busy.. 100 OPTIONAL ACCESSORIES.. 101 INTERFACING TO PERIPHERALS. 104 SP/MIC JACK... 104 SP/MIC.. 104 PC... 105 Using the PG-4Y PC Interface Cable.. 106 Using the MCP-1A Software.. 107 TROUBLESHOOTING... 108 GENERAL INFORMATION.. 108 Service.. 108 Service Note.. 109 Cleaning.. 110 BACKUP BATTERY.. 110
MICROPROCESSOR RESET... Initial Settings.. Full Reset... VFO Reset... Performing Reset.. Full reset.. VFO reset.. Reset using the Menu.. OPERATION NOTICES... Operating Voltage.. Receiving Signals in Cities.. Transmission.. Internal Beats.. TROUBLESHOOTING... INTERNAL BEATS FREQUENCY LIST.. SPECIFICATIONS.. INDEX...

THANK YOU

Thank you for choosing this KENWOOD TH-K2AT/ E/ ET, TH-K4AT/ E transceiver. It has been developed by a team of engineers determined to continue the tradition of excellence and innovation in KENWOOD transceivers. Dont let the size fool you! This small FM portable transceiver features a 5-watt transmitter and various selective calls without installing options. As you learn how to use this transceiver, you will also find that KENWOOD is pursuing user friendliness. For example, each time you change the Menu No. in Menu Mode, you will see a text message on the display that lets you know what you are configuring. Though user friendly, this transceiver is technically sophisticated and some features may be new to you. Consider this manual to be a personal tutorial from the designers. Allow the manual to guide you through the learning process now, then act as a reference in the coming years.

FEATURES

Compact design Aluminum die-cast chassis High output power (up to 5 W operation) 100 memory channels or 50 channels with names Long operation period with a Ni-MH battery pack Menu allows for easy control and selecting of various functions. Optional PC software is available to manage the memory channel contents. Built-in VOX function

SUPPLIED ACCESSORIES

After carefully unpacking the transceiver, identify the items listed in the table below. We recommend you keep the box and packings for the shipping.
Quantity Accessory Part Number K Belt hook (w/ screws) Antenna Strap Battery case Ni-MH battery Charger E S G C I F D J29-0709-XX T90-1018-XX J69-0342-XX A02-3817-XX W09-0991-XX W08-0959-XX W08-0960-XX B62-1696-XX B62-1697-XX B62-1699-XX B62-1695-XX B62-1702-XX B62-1757-XX B62-1758-XX 1 TH-K2AT K 1 M M1 1 1

Instruction Manua l

Warranty card
Quantity Accessory Part Number TH-K2E E Belt hook (w/ screws) Antenna Strap Battery case Ni-MH battery Charger E S G C I F D J29-0709-XX T90-1018-XX J69-0342-XX A02-3817-XX W09-0991-XX W08-0959-XX W08-0960-XX B62-1696-XX B62-1697-XX B62-1699-XX B62-1695-XX B62-1702-XX B62-1757-XX B62-1758-XX TH-K2ET E1

Instruction Man ua l

Quantity Accessory Part Number TH-K4AT M2 Belt hook (w/ screws) Antenna Strap Battery case Ni-MH battery Charger E S G C I F D J29-0709-XX T90-1019-XX J69-0342-XX A02-3817-XX W09-0991-XX W08-0959-XX W08-0960-XX B62-1696-XX B62-1697-XX B62-1699-XX B62-1695-XX B62-1702-XX B62-1757-XX B62-1758-XX 1 1 TH-K4E E1

24V 12V PG-3J

Socket

24V 12V PG-2W
Do not use the PG-2W to connect a vehicle battery (12 V) directly. Extensive voltage could result in damaging the transceiver. If the input voltage exceeds approximately 16.5 V, warning beeps sound and DC ERR appears.
CONNECTING TO A REGULATED POWER SUPPLY
To connect the transceiver to an appropriate regulated DC power supply, use an optional PG-2W DC cable. 1 Confirm that the power of both the transceiver and the DC power supply is OFF. 2 Connect the optional PG-2W DC cable to the DC power supply; the red lead to the positive (+) terminal, and the black lead to the negative () terminal.

Fuses (4 A)

3 Connect the barrel plug on the DC cable to the DC IN jack of the transceiver. While a DC power supply is connected with the DC IN jack, the transceiver automatically initiates charging the PB-43N Ni-MH battery pack.
If the DC power supply voltage is below 12.0 V DC, you may not be able to charge the PB-43N Ni-MH battery pack. The supply voltage must be between 12.0 V and 16.0 V to prevent damaging the transceiver. If the input voltage exceeds approximately 16.5 V, warning beeps sound and DC ERR appears. Remove the DC IN jack plug immediately. If the DC power supply voltage is above 14.5 V DC and (High Power) is selected, the icon blinks and the output power is gradually reduced to level (Medium Power) {page 95}.

YOUR FIRST QSO

FIRST QSO
Are you ready to give your transceiver a quick try? Reading this chapter should get your voice on the air right away. The instructions below are intended only for a quick guide. If you encounter problems or there is something you would like to know more, read the detailed explanations given later in this manual.
1 Press and hold [ ] (POWER) briefly to switch the transceiver power ON (TH-K2AT/ E/ ET example shown below).
A high pitched double beep sounds and a Power-ON message appears momentarily. The various indicators and the current operating frequency appear on the LCD. The transceiver stores the current parameters when it is turned OFF and automatically recalls these parameters the next time you turn the transceiver ON.
2 Turn the VOL control clockwise, to the 11 oclock position.
3 Turn the Tuning control to select a reception frequency.
You may further turn the VOL control to adjust the volume level of the signal.
4 To transmit, hold the transceiver approximately 5 cm (2 inches) from your mouth. 5 Press and hold [PTT], then speak in your normal tone of voice. 6 Release [PTT] to receive. 7 Repeat steps 4, 5 and 6 to continue communication.

Selecting a Frequency

s VFO Mode This is the basic mode for changing the operating frequency. Turn the Tuning control clockwise to increase the frequency and counterclockwise to decrease the frequency.
s MHz Mode If the desired operating frequency is far away from the current frequency, it is quicker to use the MHz Tuning Mode. To adjust the MHz digit: 1 Press [F].

The MHz digit blinks.

2 Turn the Tuning control to select the desired MHz value. 3 After selecting the desired MHz value, press [F] to exit the mode and return to normal VFO Mode. 4 Continue adjusting the frequency as necessary, using the Tuning control.
s Direct Frequency Entry (TH-K2AT/ ET/ K4AT only) In addition to turning the Tuning control, there is another way to select the frequency. When the desired frequency is far away from the current frequency, you can directly enter a frequency using the numeric keypad. 1 Press [VFO].
You must be in the VFO Mode to make the direct frequency entry.

2 Press [#].

3 Press the numeric keys ([0] to [9]) to enter your desired frequency. [ ] allows you to complete the MHz digits entry.
Pressing [#] fills all remaining digits (the digits you did not enter) with 0 and completes the entry. For example, to select 145.000 MHz, press [1], [4], [5] and press [#] to complete the entry. If you want to revise the MHz digits only, leaving the kHz digits as they are, press [VFO] in place of [#].
Example 1 To enter 145.750 MHz: Key in Display [#] [1], [4], [5] 5. [7], [5], [0] 5. 0
Example 2 To enter 145.000 MHz: Key in Display [#] [1], [4], [5] 5. [#] 5. 0 Example 3 (Short cut) To enter 145.000 MHz: Key in Display 4. 5 [#] [5] 5 . [ ] 5. [#] 5. 0 Example 4 To change 144.650 MHz to 145.650 MHz: Key in Display 4. 0 [#] [1], [4], [5] 5. [VFO] 5. 0
Example 5 (Short cut) To change 144.650 MHz to 145.650 MHz: Key in Display 4. 0 [#] [5] 5 [ ] 5. [VFO] 5. 0 Example 6 To change 145.200 MHz to 145.750 MHz: Key in Display 5. 0 [#] 5. [ ] [7], [5], [0] 5. 0
If the entered frequency does not match the current frequency step size, the frequency is automatically rounded down to the next available frequency. When the desired frequency cannot be entered exactly, confirm the frequency step size {page 86}. If you turn the Tuning control while entering the frequency, the transceiver clears the entry and changes to the next available frequency.

TONE FREQ. ID SCAN

This function scans through all tone frequencies to identify the incoming tone frequency on a received signal. You can use this function to determine which tone frequency is required by accessing your local repeater. 1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 3 (T).

3 Press [MENU] (1 s).

When the transceiver receives a signal, scan starts. The decimal point blinks during scan. While the transceiver is receiving a signal during Tone Freq. ID Scan, the signal is emitted from the speaker. To reverse the scan direction, turn the Tuning control. To quit the function, press [PTT]. When the tone frequency is identified, a beep sounds and the identified frequency blinks.
4 Press [MENU] to program the identified frequency in place of the current tone frequency.
Press any key other than [MENU], [LAMP], and [MONI/SQL] if you do not want to program the identified frequency. Turn the Tuning control while the identified frequency is blinking to resume scanning.
Note: Some repeaters do not re-transmit the access tone in the downlink signal. In this case, check the other stations uplink signal to detect the repeater access tone.

MEMORY CHANNELS

In memory channels, you can store frequencies and related data that you frequently use so that you do not need to reprogram that data every time. You can quickly recall a programmed channel through simple operation. A total of 100 memory channels (50 when using the Memory Name function) are available for storing frequencies, modes and other operating conditions.
NUMBER OF MEMORY CHANNELS
The transceiver must be configured to either 100 memory channels without using the Memory Name function or 50 memory channels with the Memory Name function (default). To change the memory channel capacity: 1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 13 (M.CH). 3 Press [MENU]. 4 Turn the Tuning control to select either 50 (default) or 100.
5 Press [MENU]. SURE ? appears. 6 Press [MENU] to accept or press any key other than [MENU], [LAMP], and [MONI/SQL] to cancel.
Note: x If you change the memory channel capacity from 100 channels to 50 channels after having stored data in channels 50 to 99, all memory channel data in channels 50 to 99 will be erased. x If you change the memory channel capacity from 50 channels to 100 channels after storing Memory names in those channels, all Memory name data will be erased.
SIMPLEX & REPEATER OR ODD-SPLIT MEMORY CHANNEL?
You can use each memory channel as a simplex & repeater channel or an odd-split channel. Store only one frequency to use as a simplex & repeater channel or two separate frequencies to use as an odd-split channel. Select either application for each channel depending on the operations you have in mind. Simplex & repeater channels allow:

3 Select the memory channel where you would like the data copied, using the Tuning control.
4 Press [MR]. The tables below illustrate how data is transferred between memory channels. Channel 0 ~ 99 Reception frequency Transmission frequency Tone frequency Offset direction CTCSS frequency DCS code Tone/ CTCSS/ DCS ON/ OFF status Offset frequency Reverse ON Frequency step size Memory channel name1 Memory Channel Lockout ON/ OFF a a a a a a a a a a a a a Channel 0 ~ 99 Reception frequency Transmission frequency Tone frequency Offset direction CTCSS frequency DCS code Tone/ CTCSS/ DCS ON/ OFF status Offset frequency Reverse ON Frequency step size Memory channel name1 Memory Channel Lockout ON/ OFF
Channel 0 ~ 99 Reception frequency Transmission frequency Tone frequency Offset direction CTCSS frequency DCS code Tone/ CTCSS/ DCS ON/ OFF status Offset frequency Reverse ON Frequency step size Memory channel name2 Memory Channel Lockout ON
a a a a a a a a a a a a a
L0/U0 ~ L2/U2, Pr, AL1 Reception frequency Transmission frequency Tone frequency Offset direction CTCSS frequency DCS code Tone/ CTCSS/ DCS ON/ OFF status Offset frequency Reverse ON Frequency step size Memory channel name2 Memory Channel Lockout OFF
TH-K2AT K/ K2 only When 50 is selected in Menu No.13 (M.CH). Note: When transferring an odd-split channel, the Reverse status, Offset direction and Offset frequency are not transferred {pages 32, 33, 38}.

CALL CHANNEL

The Call Channel can be recalled instantly no matter what frequency the transceiver is operating on. For instance, you may use the Call Channel as an emergency channel within your group. In this case, Call Scan {page 64} will be useful. The default Call Channel frequencies are 144.000 MHz for the 2 m band (all TH-K2 models), and 430.000 MHz (all TH-K4 models) for the 70 cm band.
Note: Unlike memory channels 0 to 99, the Call Channel cannot be cleared.
Recalling the Call Channel
1 Press [CALL] to recall the Call Channel.
The Call Channel frequency and C appear.
To return to the previous frequency, press [CALL] again.
Reprogramming the Call Channel
1 Select your desired frequency and related data (Tone, CTCSS, DCS, or offset direction, etc.).
When you program the Call Channel as an odd-split channel, select a reception frequency first. The selected frequency and related data are stored in the Call Channel.

2 Press [F], [CALL].

4 Press [MR] to store the start frequency in the memory channel. 5 Turn the Tuning control to select your desired end frequency. 6 Press [F], [MR] then turn the Tuning control to select a channel from U0 ~ U2, corresponding to the channel selected in step 4.
For example, if you selected L0 in step 4, select U0 for the end frequency.
7 Press [MR] to store the end frequency in the memory channel. s Performing Program Scan 1 Press [VFO]. 2 Turn the Tuning control to select a frequency within the frequency range of memory channel L0/U0 ~ L2/U2. 3 Press [VFO] (1 s) to start Program Scan. 4 To stop Program Scan, press [VFO] or [PTT].
If you press [MONI/SQL], Program Scan temporarily pauses. Release [MONI/SQL] to resume scanning. The transceiver stops scanning when it detects a signal. If more than 2 Program Scan channel pairs are stored and overlaps the frequency range among the pairs, the smaller Program Scan memory channel number has priority.
To perform Program Scan, the L channel must be lower than the U channel. Otherwise, Band Scan starts {page 60}.

MEMORY SCAN

Memory Scan monitors memory channels in which you have stored frequencies.

All-Channel Scan

The transceiver scans all of the memory channels in which you have stored frequencies. 1 Press [MR] (1 s).
Scan starts from the last memory channel number and ascends up through the channel numbers (default). Turn the Tuning control to change the scanning direction.
2 To stop All-Channel Scan, press [MR] or [PTT].
You must have 2 or more memory channels that contain data, excluding special function memory channels (L0/U0 ~ L2/U2, Pr, and AL). You can perform All-Channel Scan in Channel Display Mode {page 57}.

CALL SCAN

You can alternate between monitoring the Call Channel and the current operating frequency. 1 Select the frequency (in VFO or Memory Recall Mode) you want to monitor.
In VFO Mode, turn the Tuning control to select the desired frequency. In Memory Recall Mode, turn the Tuning control to select the memory channel you want to monitor.
2 Press [CALL] (1 s) to start the Call Scan. 3 The Call Channel and the selected VFO frequency or memory channel are monitored. 4 To stop Call Scan, press [PTT] or [CALL].
You must configure the CALL key function to CALL (Menu No. 18) prior to using Call Scan. Otherwise, a 1750 Hz tone will be transmitted. The transceiver stops scanning when it detects a signal. You can perform Call Scan even if the recalled memory channel has been locked out {page 67}.

PRIORITY SCAN

You may sometimes want to check your favorite frequency activities while monitoring other frequencies. In this case, use the Priority Scan function. Priority Scan checks the activities of the Priority Channel every 3 seconds. If the transceiver detects a signal on the Priority Channel, it recalls the frequency.

Turn the Tuning control while the identified frequency is blinking to resume scanning.
Received signals are monitored through the speaker while scanning is in progress. CTCSS Freq. ID Scan does not scan the tone if a signal is not detected.
DCS is similar to CTCSS. However, instead of using an analog audio tone, it uses a continuous sub-audible digital waveform that represents a 3-digit octal number. You can select a DCS code from among the 104 DCS codes listed in the table on the next page.

Using DCS

1 Press [MENU] and turn the Tuning control to select Menu No. 2 (T.CT.DCS). 2 Press [MENU] and turn the Tuning control to select DCS.
As you turn the Tuning control, the selection cycles as follows: OFF TONE CTCSS DCS OFF. DCS appears on the display, indicating that the DCS function is activated.
4 Press any key other than [MENU], [MONI/SQL], and [LAMP] to exit the Menu Mode. When DCS is ON, you will hear calls only when the selected DCS code is received. To answer the call, press and hold [PTT], then speak into the microphone.
Note: You cannot use the DCS function and CTCSS/ Tone functions simultaneously. Switching the DCS function ON after having activated the CTCSS/ Tone functions deactivate the CTCSS/ Tone functions.

Selecting a DCS Code

1 While in DCS Mode, press [MENU] and turn the Tuning control to select Menu No. 5 (DCS).
The current DCS code appears.
2 Press [MENU] and turn the Tuning control to select your desired DCS code.
The available DCS codes are shown in the following table.

743 754

3 Press [MENU] to store the new code or [PTT] to cancel.

DCS Code ID Scan

This function scans through all DCS codes to identify the incoming DCS code on the received signal. You may find this useful when you cannot recall the DCS code that the other persons in your group are using. 1 Press [MENU] and turn the Tuning control to select Menu No. 5 (DCS). 2 Press [MENU] (1 s) to start the DCS Code ID Scan function.
While scanning, the decimal point between DCS and the DCS code blinks. To reverse the scan direction, turn the Tuning control. To quit the function, press [PTT]. When a DCS code is identified, the identified DCS code appears and blinks.
3 Press [MENU] to program the identified DCS code in place of the current DCS code. Otherwise, press [PTT] to exit the DCS Code ID Scan.
Turn the Tuning control while the identified DCS code is blinking to resume scanning.

The longer the shut-off period, the more you can save on battery consumption. However, there is a greater chance of missing a signal. When the CTCSS/ DCS code matches during reception, the battery saver function is turned OFF.
While the transceiver is communicating in PC Mode {page107}, the Battery Saver does not function. Battery Saver does not function while scanning.

BEAT SHIFT

Since the transceiver uses a microprocessor to control various functions of the transceiver, the CPU clock oscillators harmonics or image may appear on some spots of the reception frequencies {page 121}. In this case, turn the Beat Shift function ON. 5 Press [MENU]. Turn the Tuning control to select Menu No. 28 (BS). Press [MENU]. Turn the Tuning control to select ON. Press [MENU] to store the setting or [PTT] to cancel.
Note: Beat Shift status can be stored to each Memory channel.

BEEP FUNCTION

The Beep function provides confirmation of entry, error status, and malfunctions of the transceiver. We recommend you leave this function ON in order to detect erroneous operations and malfunctions. However, to turn the beep function OFF: Press [MENU]. Turn the Tuning control to select Menu No. 27 (BP). Press [MENU]. Turn the Tuning control to select OFF.
5 Press [MENU] to store the setting or [PTT] to cancel. The transceiver generates the following warning beeps even if the beep function is turned OFF.
APO warning beeps {page 82} DC voltage error beep {page 115} Weather Alert beep {page 55} Time-Out Timer warning beep {page 94}
Note: The beep output level is linked to the VOL control position.

BUSY CHANNEL LOCKOUT

This function is used in order to prevent transmitting on a channel or frequency that somebody else is currently using. When turned ON, an error beep sounds and you cannot transmit even if you press [PTT]. 1 Press [MENU] and turn the Tuning control to select Menu No. 24 (BCL). 2 Press [MENU] and turn the Tuning control to select ON or OFF (default). 3 Press [MENU] to store the setting or [PTT] to cancel.

FREQUENCY STEP SIZE

Performing Reset

There are 2 ways to enter the Reset Mode selection. However, the transceivers Lock function must be turned OFF {page 88}. When the transceiver is turned OFF:

s Full reset

1 Press [F]+[

All indicators are lit.

2 Release [F]. The full reset confirmation message, FL.RST?, appears.

3 Press [F] to proceed.

SURE ? appears. Press any key other than [F], [LAMP] and [MONI/SQL] to exit the Reset Mode.
4 Press [F] to reset the transceiver.

s VFO reset

1 Press [VFO]+[ ] (POWER). 2 Release [VFO]. The VFO reset confirmation message, VF.RST?, appears.
3 Press [VFO] to proceed.
SURE ? appears. Press any key other than [VFO], [LAMP] and [MONI/SQL] to exit the Reset Mode.
4 Press [VFO] to reset the transceiver.

Reset using the Menu

1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 99 (RESET). 3 Press [MENU]. 4 Turn the Tuning control to select the Reset Mode, FULL or VFO. 5 Press [MENU] to select the Reset Mode.

SURE ? appears.

Press any key other than [MENU], [LAMP] and [MONI/SQL] to exit the Reset Mode.
6 Press [MENU] to reset the transceiver.

OPERATION NOTICES

The transceiver has been designed and engineered to avoid possible hardware glitches. However, you may notice the following symptoms when you operate the transceiver. These symptoms are not malfunctions.

Operating Voltage

As stated in SPECIFICATIONS {page 122}, this transceiver operates on 6.0 V ~ 9.0 V DC (battery terminal) or 12.0 V ~ 16.0 V DC (DC IN jack). If you find that the transceiver cannot be switched ON, or DC ERR appears, the supplied power source may be outside of the specified range. In such a case, remove the DC power cable from the transceiver immediately and confirm that the power source voltage is within the specified range. If you are using a variable DC power supply to operate the transceiver, adjust the DC power supply voltage to 13.8 V DC. Considering the output power efficiency and thermal characteristics of the transceiver, this is the optimal voltage to operate the transceiver. If the voltage at DC IN jack exceeds 14.5 V, the transceiver output power is automatically reduced to power.
Receiving Signals in Cities
When you receive signals in cities, the receivers entire S-meter may light up without receiving any strong signals. This happens when the RF amplifier in the receiver is overloaded by strong interference signals that are nearby.

Transmission

If you continuously transmit for more than 8 minutes at high power (5 W), the transceiver becomes warm. If you continue or repeat the transmission before the transceiver cools down, the thermal protector gradually decreases the output power down to 1.5 W. also blinks at the same time. If this happens, let the transceiver cool down for a while before transmitting again.

Frequency stability
Dimensions (W x H x D including Projections)

Wei gh t

Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band.
Transmitter Market code Transmission Mode Frequency range DC IN jack (13.8 V) Output Power PB-43N (7.2 V) BT-14 (9.0 V) Modulation Maximum frequency deviation Spurious emissions K, K2
F3E (FM)/ F2D (FM) 144 ~ 148 MHz 136 ~ 174 MHz
H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.) H: 3.5 W (approx.) M: 1.2 W (approx.) L: 0.3 W (approx.) Reactance 5 kHz (FM)/ 2.5 kHz (NFM) 60 dB or less (H and M power) 50 dB or less (L power) 2k

Microphone impedance

Receiver Market code Reception Mode Frequency range Intermediate Frequency (IF) Circuit type Sensitivity K, K2
F3E (FM)/ F2D (FM) 136 ~ 174 MHz 1st IF: 38.85 MHz 2nd IF: 450 kHz Double super-heterodyne FM (12 dB SINAD) 2 m amateur radio band: 0.18 V or less 0.13 V or less (within 2 m amateur radio band) FM (normal) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 2 m amateur radio band) FMN (narrow) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 2 m amateur radio band) 400 mW or higher (7.2 V, 8 load)

Squelch sensitivity

Selectivity
Audio output (10% distortion)
General Market code Number of memory channels Antenna impedance (Connector type) DC IN jack Operating Voltage Battery terminal Grounding method Transmit with H, 13.8 V (DC IN) Transmit with H, 7.2 V (PB-43N) Transmit with M, 7.2 V (PB-43N) Transmit with L, 7.2 V (PB-43N) E

TH-K2E

TH-K2ET E3
100 (50) + 8 special function memories 50 (SMA) DC 12.0 ~ 16.0 V (13.8 V nominal) DC 6.0 ~ 9.0 V (7.2 V nominal) Negative ground 1.8 A or less
General Market code Receive (no signal) Battery Saver ON (Average) E
Transmitter Market code Transmission Mode Frequency range DC IN jack (13.8 V) Output Power PB-43N (7.2 V) BT-14 (9.0 V) Modulation Maximum frequency deviation Spurious emissions E
F3E (FM)/ F2D (FM) 144 ~ 146 MHz H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.) H: 3.5 W (approx.) M: 1.2 W (approx.) L: 0.3 W (approx.) Reactance 5 kHz (FM)/ 2.5 kHz (NFM) 60 dB or less (H and M power) 50 dB or less (L power) 2k
Receiver Market code Reception Mode Frequency range Intermediate Frequency (IF) Circuit type Sensitivity E
F3E (FM)/ F2D (FM) 144 ~ 146 MHz 1st IF: 38.85 MHz 2nd IF: 450 kHz Double super-heterodyne FM (12 dB SINAD) 2 m amateur radio band: 0.18 V or less 0.13 V or less (within 2 m amateur radio band) FM (normal) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 2 m amateur radio band) FMN (narrow) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 2 m amateur radio band) 400 mW or higher (7.2 V, 8 load)

General Market code Number of memory channels Antenna impedance (Connector type) Operating Voltage Battery terminal Grounding method Transmit with H, 13.8 V (DC IN) Transmit with H, 7.2 V (PB-43N) Transmit with M, 7.2 V (PB-43N) Transmit with L, 7.2 V (PB-43N) DC IN jack

TH-K4AT M2

TH-K4E E
General Market code Receive (no signal) Battery Saver ON (Average)

TH-K4E M

Transmitter Market code Transmission Mode Frequency range DC IN jack (13.8 V) Output Power PB-43N (7.2 V) BT-14 (9.0 V) Modulation Maximum frequency deviation Spurious emissions
F3E (FM)/ F2D (FM) 400 ~ 470 MHz 430 ~ 440 MHz
Receiver Market code Reception Mode Frequency range Intermediate Frequency (IF) Circuit type Sensitivity
1st IF: 38.85 MHz 2nd IF: 450 kHz Double super-heterodyne FM (12 dB SINAD) within 70 cm band: 0.18 V or less 0.13 V or less (within 70 cm amateur radio band) FM (normal) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 70 cm amateur radio band) FMN (narrow) 6 dB/ 10 kHz or less 40 dB/ 28 kHz or less (within 70 cm amateur radio band) 400 mW or higher (7.2 V, 8 load)
A All-Channel Scan.. 63 Alkaline Batteries, Installing.. 2 APO (Menu No. 17)... 82 ARO (Menu No. 9).. 37 ASC (Automatic Simplex Check).. 38 Automatic Dialer... 77 B Band Scan.. 60 Battery Installing the Alkaline.. 2 Installing the PB-43N Ni-MH, Pack.. 1 Life... 83 Remaining.. 83 Saver... 84 BCL (Menu No. 24).. 86 Beat Shift... 85 Beep Function.. 85 Belt Clip, Installing the.. 5 BP (Menu No. 27)... 85 BS (Menu No. 28)... 85 Busy Channel Lockout.. 86 C Call Channel, Recalling.. 53 Call Scan... 64 Carrier-Operated Mode.. 68 Channel Display... 57 Charging the PB-43N Ni-MH Battery Pack. 6 Cigarette Lighter Socket.. 8 CK (Menu No. 18)... 36
Clearing Memory Channel.. 47 COM Port.. 106 CT (Menu No. 4)... 70 CTCSS Freq. ID Scan... 72 Selecting a, Frequency.. 70 Using... 69 D DC IN jack... 6, 12, 115 DCS (Menu No. 5) Code ID Scan.. 75 Selecting a, Code.. 74 Using... 73 Direct Frequency Entry.. 21 Display LCD.. 14 DT.H (Menu No. 34)... 77 DT.L (Menu No. 36).. 81 DTMF Adjusting the Pause Duration.. 80 Adjusting the, Tone Transmission Speed.. 80 Automatic Dialer.. 77 Key Lock... 81 Manual Dialing... 76 Storing a, Number in memory.. 77 Transmitting a Stored, Number.. 79 TX hold.. 77 DTMF.MR (Menu No. 32).. 77 E ENC (Menu No. 30)... 89 F First QSO... 10 FMN (Menu No. 29)... 91
Frequency Step Size.. 86 Full Reset.. 111 H HLD (Menu No. 19).. 36 I Installing the Alkaline Batteries.. 2 the Antenna.. 4 the Belt Clip.. 5 the PB-43N Ni-MH Battery Pack. 1 Internal Beats.. 116, 121 K Keys and Control... 12, 13 L Lamp... 88 Lock Function.. 88 L.OUT (Menu No. 12)... 67 M Manual Dialing... 76 M.CH (Menu No. 13).. 41 MDF (Menu No. 15)... 49 Memory Channel Lockout.. 67 Naming a... 48 Recalling... 46 Transfer... 50 Menu Access... 24 Function List... 26 Meter... 15, 83 MHz Mode.. 20 Microphone PF Keys (optional). 89 Microprocessor Reset.. 111