Kenwood TH-K2AT Instruction Manual
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Kenwood TH-K2AT Instruction Manual

Kenwood TH-K2AT Instruction Manual

144mhz, 430mhz fm transceiver
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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)
09 08 07 06 05 04 03 02 01 00

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Table of Contents

Troubleshooting

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Summary of Contents for Kenwood TH-K2AT

  • Page 1: Instruction Manual

    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) 09 08 07 06 05 04 03 02 01 00...

  • Page 2: Notice To The User

    OTICE TO THE 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.

  • Page 3: Models Covered By This Manual

    ODELS OVERED BY THIS The models listed below are covered by this manual. TH-K2AT, TH-K2E, TH-K2ET TH-K4AT, TH-K4E ARKET ODES 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.

  • Page 4: Precautions

    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.

  • Page 5: Table Of Contents

    NSTALLING THE NSTALLING LKALINE NSTALLING THE NTENNA TTACHING THE NSTALLING THE PB-43N N HARGING THE TH-K2AT K2/ M2, TH-K4AT M2) ... 6 OTHER THAN ONNECTING TO A IGARETTE ONNECTING TO A EGULATED YOUR FIRST QSO ... 10 QSO ... 10 IRST GETTING ACQUAINTED ...
  • Page 6 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 LEARING A EMORY AMING A EMORY EMORY HANNEL Memory a VFO Transfer ...
  • Page 7 DCS Code ID Scan ... 75 DTMF FUNCTIONS ... 76 (TH-K2AT/ ET/ K4AT ANUAL IALING DTMF TX Hold (TH-K2AT/ ET/ K4AT only) ... 77 ... 77 UTOMATIC IALER Storing a DTMF Number in Memory ... 77 Transmitting a Stored DTMF Number ... 79 Adjusting the DTMF Tone Transmission Speed ...
  • Page 8 OPERATOR CONVENIENCES ... 82 APO (A OWER ... 83 ATTERY EMAINING ATTERY ... 84 ATTERY AVER ... 85 HIFT ... 85 UNCTION HANNEL OCKOUT REQUENCY ... 88 ... 88 UNCTION Tuning Control Unlock ... 89 PF K ICROPHONE ... 91 ONITOR FM O ARROW...
  • Page 9 ICROPROCESSOR Initial Settings ... 111 Full Reset ... 111 VFO Reset ... 111 Performing Reset ... 112 Full reset ... 112 VFO reset ... 113 Reset using the Menu ... 114 PERATION OTICES Operating Voltage ... 115 Receiving Signals in Cities ... 115 Transmission ...

  • Page 10: Contents

    HANK 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. Don’t let the size fool you! This small FM portable transceiver features a 5-watt transmitter and various selective calls without installing options.

  • Page 11: Supplied Accessories

    UPPLIED CCESSORIES After carefully unpacking the transceiver, identify the items listed in the table below. We recommend you keep the box and packings for the shipping. – y t i – – – – – – – – – – –...
  • Page 12 viii – y t i – – – – – –...
  • Page 13 – y t i – – – – – – – – – – – –...

  • Page 14: Writing Conventions Followed

    RITING ONVENTIONS The writing conventions described below have been followed to simplify instructions and avoid unnecessary repetition. i t c Since the amateur radio bands are slightly different from country to country, the following meter band descriptions are used in this manual. •...

  • Page 15: Preparation

    Note: Because the battery pack is provided uncharged, you must charge the battery pack before using it with the transceiver. To charge the battery pack, refer to “C (Other than TH-K2AT K2/ M2, TH-K4AT M2)” {page 6}. ATTERY 1 Unlock (open) the safety catch located at the bottom of the battery pack.

  • Page 16: Installing Alkaline Batteries

    4 To remove the battery pack, lift the safety catch, then press the release latch to unlock the battery pack. Lift the battery pack away from the transceiver. NSTALLING LKALINE 1 To open the BT-14 battery case lid, insert your thumb or finger into the hole on the top of the battery case, then pull the cover up.
  • Page 17 2 Insert (or remove) six AA (LR6) Alkaline batteries. • Be sure to match the battery polarities with those marked in the bottom of the battery case. 3 Align the two tabs at the bottom of battery case, then close the cover until the locking tabs on top click. 4 To install the battery case onto (or remove it from) the transceiver, follow steps 1 to 3 of “I PB-43N Ni-MH B...

  • Page 18: Installing The Antenna

    Hold the supplied antenna by its base, then screw it into the connector on the top panel of the transceiver until secure. TTACHING THE If desired, you can attach the supplied hand strap to the transceiver. TRAP OTHER THAN Strap TH-K2AT K/ K2)

  • Page 19: Installing The Belt Clip

    NSTALLING THE If desired, you can install the supplied belt clip to the transceiver. 1 Loosely insert the two supplied screws into the holes on the back panel of the transceiver. 2 Slide the belt hook into position, under the screws. 3 Tighten the screws until secure.

  • Page 20: Harging The

    PB-43N Ni-MH B HARGING THE TH-K2AT K2/ M2, TH-K4AT M2) OTHER THAN The Ni-MH battery pack can be charged after it has been installed onto the transceiver. (The battery pack is provided uncharged for safety purposes.) 1 Confirm that the transceiver power is OFF.
  • Page 21 Note: Never leave the battery pack in direct sunlight. The transceiver becomes warm while charging the battery pack. While the battery pack is charged, the ambient temperature must be within 0 C ~ 40 C (32 F ~ 104 F). Otherwise, charging does not start.

  • Page 22: Onnecting To A

    ONNECTING TO A To connect the transceiver to the cigarette lighter socket in your vehicle, use an optional PG-3J Cigarette Lighter cable. When the PG-3J is connected to the cigarette lighter plug, the transceiver automatically starts charging the PB-43N Ni-MH battery pack. While you operate the transceiver, it charges the PB-43N Ni-MH battery pack in the background.

  • Page 23: Connecting To A Regulated Power Supply

    ONNECTING TO A 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;...

  • Page 24: Your First Qso

    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 [ transceiver power ON (TH-K2AT/ E/ ET example shown below). YOUR FIRST QSO ] (POWER) briefly to switch the...
  • Page 25 • 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.

  • Page 26: Getting Acquainted

    GETTING ACQUAINTED EYS AND ONTROLS Tuning control VOL control Antenna connector (TX:Red RX:Green) PTT switch Display (LCD) SP/MIC jack Power Switch LAMP key DC IN jack MONI/SQL key Keypad MENU key TH-K2AT/ ET/ K4AT...
  • Page 27 Tuning control VOL control Antenna connector (TX:Red RX:Green) PTT switch Display (LCD) SP/MIC jack Power Switch LAMP key DC IN jack MONI/SQL key Keypad MENU key TH-K2E/ K4E...

  • Page 28: Display

    ISPLAY Appears when the CTCSS function is activated {page 69}. Appears when the Tone function is activated {page 34}. Appears when the DCS function is activated {page 73}. Appears when the repeater shift function is activated {pages 31 ~ 34, 37}. Appears when the Reverse function is activated {page 38}.
  • Page 29 Appears when a Priority Scan function is activated {page 65}. Displays the frequencies, Menu settings, Memory name and other information. Appears when the Weather Alert function is activated {page 55}. Appears when narrow FM Mode is selected {page 91}. Displays the Menu No., memory channel number, and status {pages 24, 41}.
  • Page 30 Appears when the function key is pressed. appears when high power transmission is selected, appears when medium power is selected, and appears when low power is selected {page 95}.

  • Page 31: Basic Operation

    ASIC PERATION Switching the Power ON/OFF 1 Press [ ] (POWER) briefly to switch the transceiver power ON. • A high pitched double beep sounds and a Power-ON message {page 92} appears briefly, followed by the frequency and other indicators. 2 To switch the transceiver OFF, press [ again.

  • Page 32: Adjusting The Squelch

    Adjusting the Squelch The purpose of Squelch is to mute the speaker when no signals are present. With the squelch level correctly set, you will hear sound only while actually receiving signals. The higher the selected squelch level, the stronger the signals must be to receive.

  • Page 33: Transmitting

    Transmitting 1 To transmit, hold the transceiver approximately 5 cm (2 inches) from your mouth, then press and hold [PTT] and speak into the microphone in your normal tone of voice. • The LED lights red and the bar-graph meter appears. •...

  • Page 34: Selecting A Frequency

    Selecting a Frequency 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. MHz Mode If the desired operating frequency is far away from the current frequency, it is quicker to use the MHz Tuning Mode.

  • Page 35: Direct Frequency Entry (Th-K2At/Et/K4At Only)

    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.
  • Page 36 Example 2 To enter 145.000 MHz: Key in [1], [4], [5] Example 3 (Short cut) To enter 145.000 MHz: Key in Example 4 To change 144.650 MHz to 145.650 MHz: Key in [1], [4], [5] [VFO] Display – – – – – – 1 4 5.
  • Page 37 Example 5 (Short cut) To change 144.650 MHz to 145.650 MHz: Key in [VFO] Example 6 To change 145.200 MHz to 145.750 MHz: Key in [7], [5], [0] Note: If the entered frequency does not match the current frequency step size, the frequency is automatically rounded down to the next available frequency.

  • Page 38: Menu Setup

    HAT IS A Many functions on this transceiver are selected or configured via a software-controlled Menu rather than through the physical controls of the transceiver. Once you become familiar with the Menu system, you will appreciate its versatility. You can customize the various timings, settings, and programming functions on this transceiver to meet your needs without using many controls and switches.
  • Page 39 3 Press [MENU] to configure the parameter of the currently selected Menu No. 4 Turn the Tuning control to select your desired parameter. 5 Press [MENU] to store the new setting. Otherwise, press any key other than [LAMP], [MONI/SQL] or ] (POWER) to cancel.

  • Page 40: Menu Function List

    UNCTION i t c t f i c i t y t i y t i / – –...
  • Page 41 i t c c i t t f i – –...
  • Page 42 Default settings vary according to the transceiver model you are using. See the reference page to determine which default setting is available for your transceiver. Only available for TH-K2AT K/ K2 and TH-K2E/ ET Only available for TH-K2AT/ ET and TH-K4AT Only available for TH-K2AT K/ K2...

  • Page 43: Alphabetical Function List

    LPHABETICAL UNCTION s t i – – –...
  • Page 44 Default settings vary according to the transceiver model you are using. See the reference page to determine which default setting is available for your transceiver. Only available for TH-K2AT K/ K2 and TH-K2E/ ET Only available for TH-K2AT/ ET and TH-K4AT Only available for TH-K2AT K/ K2 / –...

  • Page 45: Operating Through Repeaters

    OPERATING THROUGH REPEATERS Repeaters, which are often installed and maintained by radio clubs, are usually located on mountain tops or other elevated locations. They generally operate at higher ERP (Effective Radiated Power) than a typical station. This combination of elevation and high ERP allows communications over much greater distances than communicating without using repeaters.

  • Page 46: Offset Programming Flow

    FFSET ROGRAMMING Select a receive frequency. Select an offset direction. Select an offset frequency (only when programming odd-split repeater frequencies). Activate the Tone function (if necessary). Select a tone frequency (if necessary). If you store all the above data in a memory channel, you will not need to reprogram the parameters every time.

  • Page 47: Selecting An Offset Frequency

    1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 6 (SFT). 3 Press [MENU]. 4 Turn the Tuning control to select “+” or “–”. • To program a –7.6 MHz offset (TH-K4E only), select “–7.6” instead. 5 Press [MENU] to store the setting or [PTT] to cancel.

  • Page 48: Activating The Tone Function

    1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 8 (OFFSET). 3 Press [MENU]. 4 Turn the Tuning control to select the appropriate offset frequency. • The selectable range is from 0.000 MHz to 69.950 MHz in steps of 50 kHz. 5 Press [MENU] to store the setting or [PTT] to cancel.

  • Page 49: Selecting A Tone Frequency

    3 Press [MENU]. 4 Turn the Tuning control to select “TONE”. 5 Press [MENU] to store the setting or [PTT] to cancel. 6 Press any key other than [LAMP], [MONI/SQL], and [MENU] to exit Menu Mode. • “T” appears when the Tone function is ON. Note: You cannot use the Tone and CTCSS/ DCS functions at the same time.
  • Page 50 1750 Hz tone, access Menu No. 18 (CK) and select “CALL”. TH-K2E/ 4E only: If you press [CALL] while transmitting, 1750 Hz tone will be transmitted. TH-K2AT/ ET/ K4AT only: If you press [CALL] while transmitting, DTMF D code will be transmitted.

  • Page 51: Automatic Repeater Offset

    2 m band. The transceiver is programmed for offset direction as shown below. To obtain an up-to-date band plan for repeater offset direction, contact your national Amateur Radio association. TH-K2AT K/ K2 only 144.0 145.5 146.4 145.1 146.0...

  • Page 52: Reverse Function

    EVERSE UNCTION The Reverse function exchanges a separate reception and transmission frequency. So, while using a repeater, you can manually check the strength of a signal that you receive directly from the other station. If the station’s signal is strong, both stations should move to a simplex frequency and free up the repeater.

  • Page 53: Tone Freq . Id Scan

    ASC does not function during scan. ASC does not function while Weather Alert function is activated (TH-K2AT K/ K2 only) {page 55}. Activating ASC while using Reverse, turns Reverse function OFF. If you recall a memory channel or the Call Channel that contains a Reverse ON status, ASC is switched OFF.
  • Page 54 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. •...

  • Page 55: Memory Channels

    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.

  • Page 56: Simplex

    Note: 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. 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.
  • Page 57 The data listed below can be stored in each memory channel: t f i Yes: Can be stored in memory. N/A: Cannot be stored in memory. & t i l...

  • Page 58: Standard Repeater Frequencies

    • Memory channel number L0/U0 ~ L2/U2 {page 61}, Pr (Priority Channel) {page 65} and AL (Weather Alert) {page 55} (TH-K2AT K/ K2 only) are reserved for other functions. 5 Turn the Tuning control to select the memory channel in which you want to store the data.

  • Page 59: Storing Odd-Split Repeater Frequencies

    Storing Odd-Split Repeater Frequencies Some repeaters use a pair of reception and transmission frequencies with a non-standard offset. If you store two separate frequencies in a memory channel, you can operate on those repeaters without programming the offset frequency and direction. 1 Store the desired reception frequency and related data by following the procedure given for simplex or standard repeater frequencies {page 44}.

  • Page 60: Recalling A Memory Channel

    You cannot recall an empty memory channel. • To restore VFO Mode, press [VFO]. Using a Numeric Keypad (TH-K2AT/ ET/ K4AT only) You can also recall a memory channel by entering a desired memory channel number with the keypad. 1 Press [MR] to enter Memory Recall Mode.

  • Page 61: Clearing A Memory Channel

    You cannot recall the Program Scan memory channels (L0/U0 ~ L2/U2), Priority Channel (Pr) and Weather Alert (AL) (TH-K2AT K/ K2 only) using the numeric keypad. When you recall an odd-split memory channel, “+” and “–” appear on the display. Press [F], [MENU] (Reverse function) {page 38} to display the transmission frequency.

  • Page 62: Naming A Memory Channel

    Note: Call Channel data cannot be cleared. You can also clear the Priority Channel, L0/U0 ~ L2/U2 and Weather Alert data. While the trasceiver is in Channel Display Mode or Lock function is activated, you cannot clear the channel data. To clear all memory channels contents at once, perform Full Reset {page 111}.
  • Page 63 • You can enter the following alphanumeric characters: 0 ~ 9, A ~ Z, – (hyphen), / (slash), and a space. • Press [MONI/SQL] to delete the character at the current cursor position. 6 Press [MENU]. • The cursor moves to the next digit. 7 Repeat steps 5 and 6 to enter up to 6 digits.

  • Page 64: Memory Channel Transfer

    You can also transfer the Program Scan memory channels (L0/U0 ~ L2/U2), the Priority Channel (Pr) and Weather Alert (AL) frequency (TH-K2AT K/ K2 only) to the VFO. Channel \ Channel Transfer You can copy channel information from one memory channel to another.
  • Page 65 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.
  • Page 66 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}.

  • Page 67: Call Channel

    HANNEL 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.

  • Page 68: Reprogramming The Call Channel

    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. 2 Press [F], [CALL]. • The selected frequency and related data are stored in the Call Channel.

  • Page 69: Weather Alert (Th-K2At K/ K2 Only )

    EATHER LERT One of the NOAA Weather Radio channels can be programmed to the AL memory channel of the TH-K2AT. The transceiver can be configured to check the NOAA Weather Alert tone (1050 Hz) and will automatically alert you by recalling and monitoring the Weather Radio frequency when the Weather Alert tone is broadcasted.

  • Page 70: Enabling A Weather Alert

    Note: When you perform Full Reset {page 111}, the Weather Radio frequency recovers the factory default frequency (162.550 MHz). When you clear the Weather Radio channel {page 47}, the factory default frequency (162.550 MHz) will not be recovered. You can also transfer the AL memory channel data to the VFO or another memory channel.

  • Page 71: Channel Display

    If you want to monitor another frequency while monitoring the Weather Radio in the background: 1 Perform step 1 ~ 4 above. 2 Press [VFO] or [MR] and turn the Tuning control to select another frequency or memory channel. • “WX”...
  • Page 72 (TH-K2AT/ ET/ K4AT) {page 76}. DTMF keypad, [0] ~ [9], [ ], [#], and [F] (A tone) ~ [CALL] (D tone) also works (TH-K2AT/ ET/ K4AT only) {page 76}. To recover normal operation, turn the transceiver OFF and press [PTT]+[MR]+[...

  • Page 73: Scan

    Scan is a useful function for hands-off monitoring of your favorite frequencies. By becoming comfortable with all types of scan, you will increase your operating efficiency. This transceiver provides the following types of scans. - l l l l a y t i SCAN l l a...

  • Page 74: Normal Scan

    Note: When the CTCSS or DCS function is activated, the transceiver stops at a busy frequency and decodes the CTCSS tone or DCS code. If the tone or code matches, the transceiver unmutes. Otherwise, it resumes scanning. Press and hold [MONI/SQL] to pause scan in order to monitor the scanning frequency.

  • Page 75: Program Scan

    3 Press [VFO] (1 s) to start Band Scan. 4 To stop Band Scan, press [VFO] or [PTT]. Note: While scanning, you can change the scan frequency direction by turning the Tuning control. The transceiver scans the frequency range that is stored in Menu No.

  • Page 76: Performing Program Scan

    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.

  • Page 77: Memory Scan

    To perform Program Scan, the “L” channel must be lower than the “U” channel. Otherwise, Band Scan starts {page 60}. EMORY 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.

  • Page 78: 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. •...

  • Page 79: Priority Scan

    RIORITY 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.
  • Page 80 Using Priority Scan 1 Press [MENU] and turn the Tuning control to select Menu No. 10 (PRI). 2 Press [MENU] and turn the Tuning control to select “ON”. 3 Press [MENU] to store the setting. • “PRI” appears. 4 Press any key other than [PTT], [LAMP], and [MONI/SQL] to exit Menu Mode.

  • Page 81: Memory Channel Lockout

    EMORY HANNEL You can lock out memory channels that you prefer not to monitor during All-Channel Memory Scan {page 63}. 1 Press [MR] to enter Memory Recall Mode. 2 Turn the Tuning control to select the memory channel to be locked out. 3 Press [MENU].

  • Page 82: Scan Resume Method

    ESUME ETHOD The transceiver stops scanning at the frequency (or memory channel) where a signal is detected. It then continues or stops scanning according to which Resume Mode you have selected. • Time-Operated Mode (default) The transceiver remains on a busy frequency (or memory channel) for approximately 5 seconds, then continues to scan even if the signal is still present.

  • Page 83: Selective Call

    CTCSS You may sometimes want to hear calls from only specific persons or groups. In this case, use the Selective Call. This transceiver is equipped with CTCSS (Continuous Tone Coded Squelch System) and DCS (Digital Coded Squelch). These Selective Calls allow you to ignore (not hear) unwanted calls from other persons who are using the same frequency.

  • Page 84: Selecting A Ctcss Frequency

    • As you turn the Tuning control, the selection cycles as follows: “OFF” 3 Press [MENU]. • “CT” appears on the upper part of display, indicating that the CTCSS function is activated. 4 Press any key other than [MENU], [MONI/SQL], and [LAMP] to exit Menu Mode.
  • Page 85 3 Press [MENU] to store the new setting or [PTT] to cancel. Note: To use the selected CTCSS tone, you must turn the CTCSS function ON {page 69}. Available CTCSS Tone Frequencies...

  • Page 86: Ctcss Freq. Id Scan

    CTCSS Freq. ID Scan This function scans through all CTCSS frequencies to identify the incoming CTCSS frequency on the received signal. You may find this useful when you cannot recall the CTCSS frequency that the other persons in your group are using. 1 Press [MENU] and turn the Tuning control to select Menu No.

  • Page 87: Dcs

    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.

  • Page 88: Selecting A Dcs Code

    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. •...

  • Page 89: Dcs Code Id Scan

    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.

  • Page 90: Dtmf Functions

    Autopatch. You can access the public telephone network via such a repeater by sending DTMF tones. For further information, consult your local repeater reference. (TH-K2AT/ ET/ K4AT ANUAL IALING The numeric keypad functions as a DTMF keypad; the 12 keys found on a touch-tone phone plus 4 additional keys (A, B, C, D) on the rightmost column.

  • Page 91: Dtmf Tx Hold (Th-K2At/ Et/ K4At Only)

    2 seconds after pressing a key, so if the next key is not pressed within this time limit, the transceiver stops transmitting. DTMF TX Hold (TH-K2AT/ ET/ K4AT only) This function causes the transceiver to remain in Transmission Mode for 2 seconds after you release each key.
  • Page 92 • On the transceiver display, DTMF code “ ” is represented by “E” and “#” is represented by “F” (TH-K2AT/ ET/ K4AT only). • You can also enter a DTMF code using the keypad. Simply press your desired DTMF codes on the keypad (TH-K2AT/ ET/ K4AT only).

  • Page 93: Transmitting A Stored Dtmf Number

    • After transmission, the frequency display is restored. TH-K2AT/ ET/ K4AT only: If you do not need to confirm the memory channel contents, press [0] ~ [9] instead of turning the Tuning control in step 2, to select a channel number. The stored DTMF number will be immediately transmitted.

  • Page 94: Adjusting The Dtmf Tone Transmission Speed

    Adjusting the DTMF Tone Transmission Speed This transceiver allows you to configure the DTMF number transmission speed between Fast (default) and Slow. If a repeater cannot respond to the fast speed, adjust this parameter. 1 Press [MENU] to enter Menu Mode. 2 Turn the Tuning control to select Menu No.

  • Page 95: Dtmf Key Lock

    4 Turn the Tuning control to select “ON”. 5 Press [MENU] to store the setting or [PTT] to cancel. When this function is activated, you cannot send DTMF tones using [MENU] (all models) or DTMF keypad (TH-K2AT/ ET/ K4AT) during transmission.

  • Page 96: Operator Conveniences

    OPERATOR CONVENIENCES APO (A OWER The transceiver switches OFF automatically if no keys or controls are pressed or adjusted for 30 minutes (default). One minute before the transceiver switches OFF, warning beeps sound for a few seconds and “APO” blinks. You can select the APO time from OFF (disable), 30 (default), 60, 90, 120, or 180 minutes.

  • Page 97: Battery Life

    ATTERY Before you operate the transceiver outside using a battery pack, it is important to know how long the battery pack will last. The operating times listed in the table below are measured under the following cyclic conditions: TX: 6 seconds, RX: 6 seconds, Stand-by: 48 seconds We recommend you carry extra battery packs with you, in case the battery pack becomes discharged.

  • Page 98: Battery Saver

    No display 3 Release [PTT] to exit. Note: You may not be able to transmit at high power (“ ” position) if the battery remaining indicator shows low battery power. ATTERY AVER The Battery Saver extends the operating time of the transceiver.

  • Page 99: Beat Shift

    While the transceiver is communicating in PC Mode {page107}, the Battery Saver does not function. Battery Saver does not function while scanning. HIFT Since the transceiver uses a microprocessor to control various functions of the transceiver, the CPU clock oscillator’s harmonics or image may appear on some spots of the reception frequencies {page 121}.

  • Page 100: Busy Channel Lockout

    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} •...
  • Page 101 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz, 15 kHz, 20 kHz, 25 kHz, 30 kHz, 50 kHz, 100 kHz. To change the frequency step size: 1 Press [MENU] and turn the Tuning control to select Menu No. 1 (STP). •...

  • Page 102: Lamp

    To illuminate the display and keys: Press [LAMP]. • If no other key is pressed, the light turns OFF approximately 5 seconds after releasing [LAMP]. • Press any key (including [PTT]) other than [LAMP] while the display and keys are lit to restart the 5-second timer. •...

  • Page 103: Tuning Control Unlock

    1, 2, and 3, located on the top of the microphone, are programmable with transceiver functions. The microphone key default assignments are as follows: Mic [1]: VFO Mic [2]: MR Mic [3]: CALL (TH-K2AT/ K4AT) 1750 Hz (TH-K2E/ ET/ K4E) PTIONAL...
  • Page 104 Note: Turn the transceiver OFF before connecting the optional speaker microphone. While Menu No. 31 (PC) is ”ON“ {page 107} or the Lock function is ON {page 88}, you cannot program PF keys. If the LOCK switch on the rear of the microphone is ON, you must move the switch to the OFF position to program the keys.

  • Page 105: Monitor

    ONITOR When you are receiving while the squelch function is ON, weak signals may become intermittent. If the CTCSS or DCS function is ON, you may want to disable the squelch function temporarily to monitor the current channel activities. In both of these cases, use the Monitor function to temporarily disable the squelch function.

  • Page 106: Narrow Band Fm Operation

    When narrow band FM operation is ON, “N” appears in the top right of the LCD. Note: You can store the narrow band FM operation status to the memory channels {page 41}. -ON M OWER ESSAGE You can change the Power-ON Message (a maximum of 6 characters) when the transceiver is turned ON.

  • Page 107: Programmable Vfo

    • Press [MONI/SQL] to delete the character at the current cursor position. • If no Power-ON Message is programmed, “TH-K2” or “TH-K4” appears as the Power-ON Message. 7 To complete the entry, press [MENU] without selecting a character. Otherwise press [PTT] to cancel the entry.

  • Page 108: Time -Out Timer

    • The upper limit frequency blinks. 7 Turn the Tuning control to select the upper limit frequency in MHz. 8 Press [MENU] to store the upper limit frequency or [PTT] to cancel. Note: You cannot program the 100 kHz or lower digits. The upper limit frequency cannot be set lower than the selected lower limit frequency.

  • Page 109: Tx Inhibit

    Note: A warning beep sounds even if you select Menu No. 27 (BP) OFF {page 85}. TX I NHIBIT You can inhibit the transmission to prevent unauthorized individuals from transmitting, or to eliminate accidental transmissions while carrying the transceiver. 1 Press [MENU]. 2 Turn the Tuning control to select Menu No.

  • Page 110: Vox (Voice -Operated Transmission )

    Note: If the DC IN voltage exceeds 14.5 V DC and “ ” (High Power) is selected, the “ ” icon blinks and the output power is automatically reduced to “ ” (Medium Power). VOX (V OICE PERATED VOX eliminates the necessity of manually switching to the Transmission Mode each time you want to transmit.

  • Page 111: Vox Gain

    1 Press [MENU] then turn the Tuning control to select Menu No. 20 (VOX). 2 Press [MENU] and turn the Tuning control to select the desired VOX gain level from 1 (least sensitive) to 9 (most sensitive). • To turn OFF the VOX function, select “OFF” in step 2. Note: While in Menu Mode {page 24}, the VOX function is temporarily disabled.
  • Page 112 • If the transmission does not begin, you must readjust the VOX Gain so that transeiver transmits while you are speaking. To readjust the gain, press and hold [PTT] then turn the Tuning control to select a more sensitive gain level. •...

  • Page 113: Vox Delay Time

    VOX Delay Time If the transceiver returns to Reception Mode too quickly after you stop speaking, the end of your transmission may not be sent. To avoid this, select an appropriate delay time that allows your entire transmission to be sent, before Transmission Mode ends.

  • Page 114: Vox On Busy

    VOX on Busy You can configure the transceiver to force VOX transmission even if the transceiver is receiving a signal. 1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 21 (VXB). 3 Press [MENU]. 4 Turn the Tuning control to select “ON”. •...

  • Page 115: Optional Accessories

    OPTIONAL ACCESSORIES BC-21 Battery Charger EMC-3 Clip Microphone with Earphone KHS-21 Headset BT-14 Battery Case (6 AA/ LR6) HMC-3 Headset (with VOX/ PTT) KSC-24 Rapid Charger...
  • Page 116 MCP-1A Memory Channel Control Software Refer to pages 105 and 107. PG-2W DC Power Cable PG-4Y PC Interface Cable PB-43N Ni-MH Battery Pack (7.2 V/ 1100 mAh) PG-3J Cigarette Lighter Power Cable SMC-32 Speaker Microphone...
  • Page 117 SMC-33 Speaker Microphone (with PF keys) SMC-34 Speaker Microphone (with PF keys and VOL control)

  • Page 118: Interfacing To Peripherals

    INTERFACING TO PERIPHERALS SP/MIC J The SP/MIC jack on the transceiver can be configured to interface to various kind of peripherals available for the transceiver, such as a speaker microphone (SMC-32/ 33/ 34) and PC interface cable (PG-4Y). Access Menu No. 31 (PC) and select “ON” or “OFF”. SP/MIC If you plug the speaker microphone or headset into the SP/MIC jack, access Menu No.
  • Page 119 “ON” {page 107}. For your reference, the following diagram shows how the transceiver communicates to the PC using a serial (COM) port. SP/MIC jack Note: Contact an authorized KENWOOD dealer for the PG-4Y, PC Interface cable availability. Level converter 2.5 mm Plug 3.5 mm...

  • Page 120: Using The Pg-4Y Pc Interface Cable

    Using the PG-4Y PC Interface Cable Use the PG-4Y PC interface cable to connect between the transceiver and PC. Plug the Speaker/ Microphone connector to the SP/MIC jack and DB-9 connector to one of the COM (serial) ports on your...

  • Page 121: Using The Mcp-1A Software

    Using the MCP-1A Software When the transceiver is connected to a PC in order to use the MCP-1A (Memory Channel Control Program) software, you must configure the SP/MIC jack function prior to using the software. 1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 31 (PC).

  • Page 122: Troubleshooting

    Do not return accessory items unless you feel they are directly related to the service problem. You may return your transceiver for service to the authorized KENWOOD dealer from whom you purchased it or to any authorized KENWOOD service...

  • Page 123: Service Note

    center. A copy of the service report will be returned with the transceiver. Please do not send subassemblies or printed circuit boards; send the complete transceiver. Tag all returned items with your name and call sign for identification. Please mention the model and serial number of the transceiver in any communication regarding the problem.

  • Page 124: Cleaning

    Cleaning The keys, controls, and case of the transceiver are likely to become soiled after extended use. Remove the controls from the transceiver and clean them with a neutral detergent and warm water. Use a neutral detergent (no strong chemicals) and a damp cloth to clean the case.

  • Page 125: Microprocessor Reset

    The Memory channels have no data stored. The Weather Radio frequency (AL channel) is restored as 162.550 MHz (TH-K2AT K/ K2 only). Refer to pages 53, 55 and 87 for the Call Channel, Weather Radio frequency and frequency step size default values.

  • Page 126: Performing Reset

    Performing Reset There are 2 ways to enter the Reset Mode selection. However, the transceiver’s Lock function must be turned OFF {page 88}. When the transceiver is turned OFF: Full reset 1 Press [F]+[ • All indicators are lit. 2 Release [F]. •...

  • Page 127: Vfo Reset

    VFO reset 1 Press [VFO]+[ 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.

  • Page 128: Reset Using The Menu

    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. •...

  • Page 129: Operation Notices

    PERATION OTICES 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).

  • Page 130: Transmission

    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. “...

  • Page 131: Troubleshooting

    ROUBLESHOOTING The problems described in the following tables are commonly encountered operational malfunctions. These types of difficulties are usually caused by improper hook-up, accidental incorrect control settings, or operator error due to incomplete programming. These problems are usually not caused by circuit failure.
  • Page 132 l l a o l l / t i • • • • • • “ t o l l . s l . s l “ t . ” v i t l l a v i t l l a .
  • Page 133 • o l l • • “ . ” • • • • • “ . ” o l l . t i . t i t f i t f i...
  • Page 134 s t i c t i • S “ ” L • “ . ” • “ . ” • • . t r c i t S “ ” E T “ ” “ r ”...

  • Page 135: Internal Beats Frequency List

    NTERNAL EATS REQUENCY LIST TH-K2AT/ E/ ET 140.800 MHz, 153.600 MHz, 166.400 MHz, 168.350 MHz TH-K4AT/ E 453.250 MHz...

  • Page 136: Specifications

    SPECIFICATIONS v i t l a i l a i...
  • Page 137 l i b Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band. – – ( – y t i – ( " " " " " "...
  • Page 138 t t i – –...
  • Page 139 v i t y t i v i t y t i v i t y t i – – – –...
  • Page 140 l a i v i t...
  • Page 141 l i b Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band. – – ( – y t i – ( " " " " " "...
  • Page 142 t t i – –...
  • Page 143 v i t y t i v i t y t i v i t y t i – – – –...
  • Page 144 l a i v i t...
  • Page 145 l i b Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band. – – ( – y t i – ( " " " " " "...
  • Page 146 t t i – –...
  • Page 147 v i t y t i v i t y t i v i t y t i – – – –...

  • Page 148: Index

    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 Band Scan ... 60 Battery Installing the Alkaline ... 2 Installing the PB-43N Ni-MH, Pack ...
  • Page 149 Clearing Memory Channel ... 47 COM Port... 106 CT (Menu No. 4) ... 70 CTCSS Freq. ID Scan ... 72 Selecting a, Frequency ... 70 Using ... 69 DC IN jack ... 6, 12, 115 DCS (Menu No. 5) Code ID Scan ... 75 Selecting a, Code ...

  • Page 150: Key And Control

    Frequency Step Size ... 86 Full Reset ... 111 HLD (Menu No. 19) ... 36 Installing the Alkaline Batteries ... 2 the Antenna ... 4 the Belt Clip ... 5 the PB-43N Ni-MH Battery Pack ... 1 Internal Beats ... 116, 121 Keys and Control ...
  • Page 151 M.NAME (Menu No. 14) ... 48 Narrow Band FM Operation ... 91 Normal Scan ... 60 Odd-split Frequency ... 42 Offset Programming ... 32 Programming Flow ... 32 Selecting, Direction ... 32 Selecting, Frequency ... 33 OFFSET (Menu No. 8) ... 93 Operating Voltage ...
  • Page 152 Regulated Power Supply ... 9 Repeater Offset, Automatic ... 37 Repeater Operation ... 31 Reprogramming the Call Channel ... 54 Reset Full ... 112 VFO ... 113 RESET (Menu No. 99) ... 114 Reverse Function ... 38 SAV (Menu No. 16) ... 84 Scan All-Channel ...

  • Page 153: Vox (V Oice -O Perated T Ransmission )

    Time-Operated Mode ... 68 Time-out Timer ... 94 Tone Activating, Function ... 34 Freq. ID Scan ... 39 Selecting a, Frequency ... 35 Transmit a 1750 Hz ... 36 TOT (Menu No. 23) ... 94 Transmitting ... 19 Troubleshooting ... 108 Tuning Control Unlock ...

This manual is also suitable for:

Th-k2eTh-k2etTh-kaeTh-k4atTh-k4e

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