INSTRUCTION MANUAL 144 MHz FM TRANSCEIVER VHF FM TRANSCEIVER TM-271A 144 MHz FM TRANSCEIVER TM-271E © B62-1804-00 (K,E,M2,M3,M4) 09 08 07 06 05 04 03 02 01 00 TM-271 MENU
THANK YOU! MARKET CODES Thank you for choosing this KENWOOD transceiver. KENWOOD always provides Amateur Radio products which surprise and excite serious hobbyists. This transceiver is no exception. As you learn how to use this transceiver, you will 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.
NOTICES TO THE USER PRECAUTIONS One or more of the following statements may be applicable: 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.
CONTENTS SUPPLIED ACCESSORIES ...................................... 1 WRITING CONVENTIONS FOLLOWED IN THIS MANUAL ...................................................... 1 CHAPTER 1 PREPARATION MOBILE INSTALLATION ........................................... 2 DC POWER CABLE CONNECTION .......................... 3 Mobile Operation .................................................. 3 Fixed Station Operation ........................................ 4 Replacing Fuses ............................................
RECALLING A MEMORY CHANNEL ....................... 30 USING THE TUNING CONTROL .................................... 30 USING THE MICROPHONE KEYPAD ............................... 31 CLEARING A MEMORY CHANNEL ......................... 31 NAMING A MEMORY CHANNEL ............................. 32 MEMORY CHANNEL TRANSFER ........................... 33 MEMORY \ VFO TRANSFER .................................... 33 CHANNEL \ CHANNEL TRANSFER .............................. 33 CALL CHANNEL ...........................
FREQUENCY STEP SIZE ....................................... 56 DISPLAY BACKLIGHT ............................................. 57 PERMANENT BACKLIGHT ........................................... 57 AUTOMATIC BACKLIGHT ............................................. 57 LOCK FUNCTION ................................................... 58 DATA COMMUNICATION SPEED ........................... 58 TUNE ENABLE ........................................................ 58 MICROPHONE PF KEYS (KEYPAD MODELS ONLY) ......
SUPPLIED ACCESSORIES WRITING CONVENTIONS FOLLOWED IN THIS MANUAL After carefully unpacking the transceiver, identify the items listed in the table below. We recommend you keep the box and packaging for shipping. The writing conventions described below have been followed to simplify instructions and avoid unnecessary repetition. A market area code (K, E, M2, M3, or M4) can be found on the label attached to the package box.
PREPARATION 1 MOBILE INSTALLATION To install the transceiver, select a safe, convenient location inside your vehicle that minimizes danger to your passengers and yourself while the vehicle is in motion. Consider installing the unit at an appropriate position so that knees or legs will not strike it during sudden braking of your vehicle. Try to pick a well ventilated location that is shielded from direct sunlight.
DC POWER CABLE CONNECTION Locate the power input connector as close to the transceiver as possible. 4 Confirm the correct polarity of the connections, then attach the power cable to the battery terminals; red connects to the positive (+) terminal and black connects to the negative (–) terminal. 1 • Use the full length of the cable without cutting off excess even if the cable is longer than required. In particular, never remove the fuse holders from the cable.
FIXED STATION OPERATION In order to use this transceiver for fixed station 1 operation, you will need a separate 13.8 V DC power supply (not included). The recommended current capacity of your power supply is 12 A. 1 Connect the DC power cable to the regulated DC power supply and ensure that the polarities are correct (Red: positive, Black: negative). 2 Connect the transceiver’s DC power connector to the connector on the DC power cable. • Press the connectors firmly together until the locking tab clicks.
REPLACING FUSES ANTENNA CONNECTION If the fuse blows, determine the cause, then correct the problem. After the problem is resolved, replace the fuse. If newly installed fuses continue to blow, disconnect the power cable and contact your authorized KENWOOD dealer or an authorized KENWOOD service center for assistance. Before operating, install an efficient, well-tuned antenna. The success of your installation will depend largely on the type of antenna and its correct installation.
ACCESSORY CONNECTIONS 1 EXTERNAL SPEAKER Attach the supplied microphone hanger in an appropriate location using the screws included in the screw set. Microphone hanger If you plan to use an external speaker, choose a speaker with an impedance of 8 Ω. The external speaker jack accepts a 3.5 mm (1/8") mono (2-conductor) plug. We recommend using the SP-50B speaker.
CONNECTING TO A TNC (E MARKET MODELS ONLY) To connect an external TNC to the transceiver, use an optional PG-5A cable. The DATA connector on the rear of the transceiver mates with the 6-pin mini-DIN plug on this cable. Pin No. Pin Name Function 1 PKD 2 GND Ground for PKD Packet standby 3 PKS • Packet data input • TX data from TNC to transceiver TNC can use this pin to inhibit the transceiver microphone input while transmitting packet signals.
YOUR FIRST QSO Are you ready to give your transceiver a quick try? Reading this section should get your voice on the air right away. The instructions below are intended only as 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. 2 q Press [ ] (Power) briefly to switch the transceiver power ON. • A high pitched double beep sounds and a Power-on message appears momentarily.
GETTING ACQUAINTED Press [F] then press [MENU] to enter Menu Mode {page 18}. FRONT PANEL Note: This section describes only the main functions of the front panel controls. Explanations for functions not described here are provided in the appropriate sections of this instruction manual. q w TM-271 Turn to select: • Operating frequencies when in VFO Mode {page 15}. • Memory Channels when in Memory Recall Mode {page 30}. • Menu Nos. when in Menu Mode {page 18}.
In MR Mode, press [F] then press [VFO] to transfer the contents of the selected Memory Channel to the VFO {page 33}. DISPLAY q w e ty u r i o !0 !1 t MR key Press to enter Memory Recall Mode {page 30}. In this mode, you can change memory channels using the Tuning control or Mic [UP]/[DWN]. Press and hold for 1 second while in Memory Recall Mode to begin Memory Scan {page 42}.
y !4 Appears when the Automatic Simplex Check (ASC) function is activated {page 26}. Appears when the Memory Channel Lockout function is ON {page 44}. u !5 Appears when the Priority Scan function is activated {page 43}. Shows the strength of transmitted {page 15} and received {page 54} signals. i indicates the squelch is open and the frequency is “busy”. It also appears when the squelch is set to minimum {page 14}.
MICROPHONE REAR PANEL q w er r t y u i q w e q 3 DTMF Microphone q Antenna connector Connect an external antenna {page 5} here. When making test transmissions, connect a dummy load in place of the antenna. The antenna system or load should have an impedance of 50 Ω. Note: E market models use an N-type antenna connector while other models use an M-type (SO-239) connector. w Data cable (E market versions only) Connect this cable to a TNC {page 7}. e Power Input 13.8 V DC cable Connect a 13.
r CALL/A key Identical to the front panel CALL key. This key can be reprogrammed if desired {page 59}. Press and hold Mic [PTT], then press [CALL/A] to transmit A. t VFO/B key Identical to the front panel VFO key. This key can be reprogrammed if desired {page 59}. Press and hold Mic [PTT], then press [VFO/B] to transmit B. MIC KEYPAD DIRECT ENTRY The microphone keypad (keypad models only) allows you to make various entries depending on which mode the transceiver is in.
OPERATING BASICS SWITCHING THE POWER ON/OFF ADJUSTING THE SQUELCH 1 Press [ 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. The appropriate squelch level depends on the ambient RF noise conditions. ] (Power) to switch the transceiver power ON.
TRANSMITTING 1 To transmit, hold the microphone approximately 5 cm (2 inches) from your mouth, then press and hold Mic [PTT] and speak into the microphone in your normal tone of voice. • “ ” and the RF Power meter appears. The RF Power meter shows the relative transmit output power ). ( • If you press Mic [PTT] while you are outside the transmission coverage, a high pitched error beep sounds. 2 When you finish speaking, release Mic [PTT].
MHZ MODE DIRECT FREQUENCY ENTRY If the desired operating frequency is far away from the current frequency, it is quicker to use the MHz Tuning Mode. In addition to turning the Tuning control or pressing Mic [UP]/[DWN], 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 Mic keypad (keypad models only). To adjust the MHz digit: 1 While in VFO or Call Mode, press [MENU]. • The MHz digit blinks.
Example 1 To enter 145.750 MHz: Key in Display [Enter] ––– ––– [1], [4], [5] 1 4 5. – – – [7], [5], [0] 1 4 5. 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. When the desired frequency cannot be entered exactly, confirm the frequency step size {page 56}. 4 Example 2 To enter 145.000 MHz: Key in Display [Enter] ––– ––– [1], [4], [5] 1 4 5. – – – [Enter] 1 4 5.
MENU SETUP 2 Turn the Tuning control to select your desired Menu. WHAT IS A MENU? 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 5 controls and switches.
MENU FUNCTION LIST On the display Menu No. Function Ref. Page Selections Default Varies (see reference page) 88.5 24 STP 1 Frequency step size T 2 Tone frequency 2.5/ 5/ 6.25/ 10/ 12.5/ 15/ 20/ 25/ 30/ 50/ 100 kHz 67.0 ~ 254.1 Hz CT 3 CTCSS frequency 67.0 ~ 254.1 Hz 88.5 47 DCS 4 DCS code 023 ~ 754 023 48 5 Shift direction OFF/ +/ – OF F 23 6 Transmission power High/ Low High 15 P.
On the display 5 Menu No. Function Selections CK 19 CALL key CALL/ 1750 HLD 20 1750 Hz tone TX hold ON/ OFF TOT 21 Time-out Timer 3/ 5/ 10 min. BCL 22 Busy Channel Lockout ON/ OFF Default Ref. Page Varies (see 25,35 reference page) OF F 25 10 62 OF F 56 P.ON.MSG 23 Power-on message 6 characters – 60 BP 24 Beep ON/ OFF ON 55 BS 25 Beat Shift ON/ OFF OF F 54 FMN 26 Narrow FM ON/ OFF OF F 60 ENC 27 Tuning control lock ON/ OFF OF F 58 DTMF.
On the display Menu No. Function Selections Default Ref. Page MR 59 VFO 59 CALL 59 1200 58 Maximum level 57 PF 2 36 Microphone programmable function key PF 3 37 Microphone programmable function key PF 4 38 Microphone programmable function key DT 39 Data TX speed MONI/ ENTER/ 1750/ VFO/ MR/ CALL/ MHZ/ REV/ SQL/ M--V/ M.IN/ C.IN/ MENU/ SHIFT/ LOW/ BRIGHT/ LOCK/ TONE/ STEP MONI/ ENTER/ 1750/ VFO/ MR/ CALL/ MHZ/ REV/ SQL/ M--V/ M.IN/ C.
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. Most repeaters use a receive and transmit frequency pair with a standard or non-standard offset (odd-split).
PROGRAMMING AN OFFSET SELECTING AN OFFSET FREQUENCY You must first select an amateur radio repeater downlink frequency as described in “SELECTING AN OFFSET FREQUENCY”. To access a repeater which requires an odd-split frequency pair, change the offset frequency from the default which is used by most repeaters. The default offset frequency is 600 kHz. SELECTING AN OFFSET DIRECTION Select whether the transmit frequency will be higher (+) or lower (–) than the receive frequency.
ACTIVATING THE TONE FUNCTION To activate Tone, press [F], [CALL]. • As you press [F], [CALL], the selection cycles as follows: “OFF” ➞ “TONE” ➞ “CTCSS” ➞ “DCS” ➞ “OFF”. • “T” appears on the upper part of display, indicating that the Tone function is activated. 6 Note: You cannot use the Tone function and CTCSS/ DCS functions simultaneously. Switching the Tone function ON after having activated the CTCSS/ DCS functions deactivates the CTCSS/ DCS functions.
AUTOMATIC REPEATER OFFSET TRANSMITTING A 1750 Hz TONE This function automatically selects an offset direction, according to the frequency on the VHF band. The transceiver is programmed for an offset direction as shown below. To obtain an up-to-date band plan for repeater offset direction, contact your national Amateur Radio association. Call Channel default settings: 144.0 145.5 146.4 147.0 147.6 145.1 146.0 146.6 147.4 148.
REVERSE FUNCTION z MH 14 4.7 25 25 5.3 14 MH z 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. 6 AUTOMATIC SIMPLEX CHECK (ASC) 144.725 MHz REV ON TX: 144.725 MHz TX: 144.725 MHz TX: 144.725 MHz TX: 145.325 MHz RX: 145.325 MHz RX: 145.
Note: ◆ Pressing [PTT] causes the “ ” icon to quit blinking. ◆ ASC can be activated while operating in Simplex Mode. However, it does not change the Transmission/Reception frequencies. ◆ ASC does not function while scanning. ◆ Activating ASC while using Reverse switches Reverse OFF. ◆ If you recall a Memory Channel or the Call Channel that contains a Reverse ON status, ASC is switched OFF. ◆ ASC causes received audio to be momentarily intermitted every 3 seconds.
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 200 Memory Channels (100 when using the Memory Name function) are available for storing frequencies, modes, and other operating conditions. 4 Press [MENU] to accept or press any other key to cancel.
The data listed below can be stored in each Memory Channel: Parameter Receive frequency Transmit frequency Simplex & Repeater Yes Odd-Split Note: ◆ Memory Channel Lockout cannot be set to the Program Scan Memory (L0/U0 ~ L2/U2), the Priority Channel (Pr), or the Weather Alert Channel (AL). ◆ Tone, CTCSS, and DCS are automatically turned OFF when setting up the Weather Alert Channel (AL).
• Memory Channel numbers L0/U0 ~ L2/U2 {page 40}, Pr {page 43}, and AL (Weather Alert) {page 36} (K market models only) are reserved for other functions. 5 Turn the Tuning control or press Mic [UP]/[DWN] to select the Memory Channel in which you want to store the data. 6 Press [MR] to store the data to the channel. STORING ODD-SPLIT REPEATER FREQUENCIES Some repeaters use a pair of reception and transmission frequencies with a non-standard offset.
USING THE MICROPHONE KEYPAD CLEARING A MEMORY CHANNEL You can also recall a Memory Channel by entering a desired Memory Channel number with the microphone keypad. To erase an individual Memory Channel: 1 Recall the Memory Channel you want to erase. ] (Power) (1s) to switch the transceiver 1 Press [MR] to enter Memory Recall mode. 2 Press [ OFF. 2 Press the microphone key assigned the ENTER function. 3 Press [MR]+[ 3 Enter the channel number using the microphone keypad. ] (Power).
NAMING A MEMORY CHANNEL You can name Memory Channels using up to 6 alphanumeric characters. When you recall a named Memory Channel, its name appears on the display in place of the stored frequency. Names can be call signs, repeater names, cities, names of people, etc. In order to use the Memory Name function, the Memory Channel capacity must be set to 100 channels. To change the Memory Channel capacity from 200 to 100, access Menu No. 15 (M.CH) {page 28}.
MEMORY CHANNEL TRANSFER MEMORY \ VFO TRANSFER After retrieving frequencies and associated data from Memory Recall Mode, you can copy the data to the VFO. This function is useful, for example, when the frequency you want to monitor is near the frequency stored in a Memory Channel. CHANNEL \ CHANNEL TRANSFER You can copy channel information from one Memory Channel to another. This function is useful when storing frequencies and associated data that you temporarily change in Memory Recall Mode.
The tables below illustrate how data is transferred between Memory Channels.
CALL CHANNEL REPROGRAMMING THE CALL CHANNEL Call Channel default settings: 1 Select your desired frequency and related data (Tone, CTCSS, DCS, or offset direction, etc.). • On K and M market models, pressing [CALL] changes the transceiver to the Call Channel. • On E market models, pressing [CALL] causes the transceiver to transmit a 1750 Hz tone {page 25}. The Call Channel can be recalled instantly no matter what frequency the transceiver is operating on.
Note: ◆ When you recall an odd-split Call Channel, “+” and “–” appear on the display. ◆ Transmit offset status and Reverse status are not stored in an odd-split Call Channel. 4 Turn the Tuning control or press Mic [UP]/[DWN] to select the Alert Channel (“AL”). 5 Press [MR]. Weather Radio Frequencies (MHz) WX1 WEATHER ALERT (K MARKET MODELS ONLY) Any of the NOAA Weather Radio channels can be programmed to the AL memory channel of the transceiver.
4 Press any key other than [MENU] to exit Menu Mode. • The transceiver automatically changes to the AL channel. • The Tone, CTCSS, and DCS functions cannot be configured to the AL channel. Note: ◆ The transceiver checks the Weather Alert tone once every second while you are monitoring another frequency or channel. ◆ When a 1050 Hz tone is detected, the display will change to the AL channel, the Weather Alert tone sounds, and the “WX” icon blinks.
While in Channel Display mode, you cannot activate the following functions: • VFO Mode • VFO Scan • Call/VFO Scan • MHz Scan • Scan Direction • Memory Store • Memory to VFO Transfer • Memory to Memory Transfer • Clear Memory Channel 7 • VFO Reset • Full Reset • 1 MHz Step • Selection for Tone and Selective Call • Auto Simplex Checker • Menu Mode To recover normal operation, turn the transceiver power OFF and press [REV]+[ ] (Power) again.
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. Scan Type Band Scan Normal Scan Memory Scan Call Scan Purpose Scans the entire band of the frequency you selected. Program Scan Scans the specified frequency ranges stored in Memory Channels L0/U0 ~ L2/U2. MHz Scan Scans the frequencies within a 1 MHz range.
NORMAL SCAN PROGRAM SCAN When you are operating the transceiver in VFO Mode, 3 types of scanning are available: Band Scan, Program Scan, and MHz Scan. You can limit the scanning frequency range. There are 3 memory channel pairs (L0/U0 ~ L2/U2) available for specifying the start and end frequencies. Program Scan monitors the range between the start and end frequencies that you have stored in these Memory Channels.
7 Turn the Tuning control or press Mic [UP]/[DWN] to select a matching Memory Channel from U0 ~ U2. • For example, if you have selected “L0” in step 3, select Memory Channel “U0”. MHZ SCAN MHz Scan allows you to scan an entire 1 MHz frequency range within the current VFO frequency. 1 Press [VFO] and turn the Tuning control or press Mic [UP]/[DWN] to select a frequency in which to perform MHz Scan. 8 Press [MR] to store the end frequency in the Memory Channel.
MEMORY SCAN Memory Scan monitors Memory Channels in which you have stored frequencies. ALL-CHANNEL SCAN 1 Press [MR] (1s). • Scan starts from the last Memory Channel number and ascends up through the channel numbers (default). • To jump to a desired channel while scanning, quickly turn the Tuning control. • To reverse the scan direction, turn the Tuning control or press Mic [UP]/[DWN].
CALL SCAN PRIORITY SCAN You can alternate between monitoring the Call Channel and the current operating frequency. 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 to the VFO.
USING PRIORITY SCAN MEMORY CHANNEL LOCKOUT 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 12 (PRI). You can lock out Memory Channels that you prefer not to monitor during Memory Scan or Group Scan {page 42}. 2 Press [MENU] and turn the Tuning control to select “ON” or “OFF” (default). 1 Press [MR] and turn the Tuning control or press Mic [UP]/[DWN] to select the Memory Channel to be locked out. 3 Press [MENU] to store the setting or any other key to cancel. • “PRI” appears.
SCAN RESUME METHOD 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. • Carrier-Operated Mode The transceiver remains on a busy frequency (or Memory Channel) until the signal drops out.
SELECTIVE CALL CTCSS AND DCS You may sometimes want to hear calls from only specific persons or groups. In this case, use 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. The transceiver unmutes only when it receives a signal having the same CTCSS tone or DCS code.
SELECTING A CTCSS FREQUENCY 1 Press [F], [MENU] and turn the Tuning control or press Mic [UP]/[DWN] to select Menu No. 3 (CT). Available CTCSS Tone Frequencies 42 Tone Frequencies (Hz) 67.0 85.4 107.2 136.5 173.8 218.1 2 Press [MENU] and turn the Tuning control to select your desired CTCSS frequency. 6 9 .3 88.5 110.9 141.3 179.9 225.7 71.9 91.5 114.8 146.2 186.2 229.1 • The selectable CTCSS frequencies are the same as those for the Tone frequency.
• While scanning, the decimal point of the CTCSS frequency blinks. DCS • To reverse the scan direction, turn the Tuning control or press Mic [UP]/[DWN]. 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 below. • To quit the function, press any key.
• The available DCS codes are shown in the following table.
DUAL TONE MULTI-FREQUENCY (DTMF) FUNCTIONS This transceiver provides you with 10 dedicated DTMF Memory Channels. You can store a DTMF number (16 digits max.) in each of these channels to recall later for speed dialing. Many repeaters in the U.S.A. and Canada offer a service called Autopatch. You can access the public telephone network via such a repeater by sending DTMF tones. For further information, consult your local repeater reference.
DTMF TX HOLD STORING A DTMF NUMBER IN MEMORY This function causes the transceiver to remain in transmission mode for 2 seconds after you release each key. So, you can release Mic [PTT] while sending DTMF tones. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 28 (DTMF.MR). 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 30 (DT.H). 2 Press [MENU] and turn the Tuning control to select “ON” or “OFF” (default).
6 Repeat steps 4 and 5 to enter up to 16 digits. 7 Press [MENU] to complete the entry. • Press any key other than [MR], [VFO], [F], and [MENU] to cancel the entry. • To complete an entry of less than 16 digits, press [MENU] two times. 8 Press any key other than [MENU] to exit Menu Mode. CONFIRMING STORED DTMF NUMBERS 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 28 (DTMF.MR). 2 Press [MENU] and turn the Tuning control to select your desired DTMF Memory Channel number from 0 to 9.
ADJUSTING THE PAUSE DURATION 4 Press any key other than [MENU] to exit Menu Mode. You can change the pause duration (a space digit) stored in Memory Channels. The default setting is 500 milliseconds. When this function is activated, you cannot send DTMF tones using the Mic keypad. DTMF memory transmission is also inhibited. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 31 (PA). 2 Press [MENU] and turn the Tuning control to select 100, 250, 500 (default), 750, 1000, 1500, or 2000 ms.
AUXILIARY FUNCTIONS APO (AUTO POWER OFF) BEAT SHIFT The transceiver switches OFF automatically if no keys or controls are pressed or adjusted for the selected duration. One minute before the transceiver switches OFF, warning beeps sound for a few seconds and “APO” blinks. 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.
1 Press [F], [MENU] and turn the Tuning control to select Menu No. 8 (SSQ). 2 Press [MENU] and turn the Tuning control to select from OFF (default), 125, 250, and 500 ms. 2 Press [MENU] and turn the Tuning control to select “ON” or “OFF” (default). 3 Press [MENU] to store the setting or any other key to cancel. 3 Press [MENU] to store the setting. 4 Press any key other than [MENU] to exit Menu Mode. • The S-meter setting segments appear. 4 Press any key other than [MENU] to exit Menu Mode.
3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. 4 Press any key other than [MENU] to exit Menu Mode. FREQUENCY STEP SIZE The transceiver generates the following warning beeps even if the Beep function is turned OFF. • APO warning beeps {page 54} • Weather Alert beep {page 36} • Time-out Timer warning beep {page 62} Note: The beep output level is linked to the VOL control position.
The default step size for each model is as follows: Market Code Default Frequency Step Size K 5 kHz E 12.5 kHz M2 12.5 kHz M3 12.5 kHz Note: The market code is printed on the barcode label of the carton box. DISPLAY BACKLIGHT You can manually change the display brightness to match the lighting conditions where you are operating the transceiver. This setting can be permanent or the display can light up only when keys are pressed.
LOCK FUNCTION DATA COMMUNICATION SPEED The lock function disables most of the keys to prevent you from accidentally activating a function. Transceiver Lock is suitable for a typical mobile installation where you select most operations using the microphone. When the transceiver is connected to a TNC {page 7} (E market models only), you can adjust the communication speed between 1200 bps and 9600 bps. 1 Press [F] (1s). • “ ” appears when this function is ON.
2 Press [MENU] and turn the Tuning control to select the programmable function from the list provided below. 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. 3 Press [MENU] to store the setting or any other key to cancel. MICROPHONE PF KEYS (KEYPAD MODELS ONLY) 4 Press any key other than [MENU] to exit Menu Mode. You can access many transceiver settings without using transceiver keys or controls.
• LOW: Select transmission power 3 Press [MENU] to store the setting or any other key to cancel. • BRIGHT: Adjust display backlight 4 Press any key other than [MENU] to exit Menu Mode. • SHIFT: Shift function ON/OFF • LOCK: Transceiver Lock function ON/OFF (must be held down for 1 second to activate) • TONE: Selection for Tone/ Selective Call When narrow band FM operation is ON, “N” appears in the top right of the LCD.
3 Turn the Tuning control to select a character. • You can enter the following alphanumeric characters: 0 ~ 9, A ~ Z, – (hyphen), / (slash), and a space. • Rather than using the Tuning control, you can use the Mic keypad (keypad models only) to enter alphanumeric characters {page 64}. 1 While in VFO mode, press [F], [MENU] and turn the Tuning control to select Menu No. 7 (P.VFO). • The current programmable frequency range for the band appears.
TIME-OUT TIMER The Time-out Timer limits the time of each transmission to a maximum of 3, 5, or 10 (default) minutes. Just before the transceiver stops the transmission, a warning beep sounds. This function is necessary to protect the transceiver from thermal damage and can therefore not be turned OFF. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 21 (TOT). 2 Press [MENU] and turn the Tuning control to select “3”, “5” or “10” (default) minutes.
MICROPHONE CONTROL You can change numerous transceiver settings by operating the Mic DTMF keys. The following table shows what function is switched ON and OFF or which setting is changed by pressing the DTMF keys in the appropriate mode of operation.
1 DTMF tones are not transmitted in TX Mode if the DTMF Lock function is ON. 2 When transmitting a stored DTMF number, press Mic [PTT]+Mic [PF/D], release Mic [PF/D], then press a Memory Channel number from 0 to 9. To transmit the “D” tone, press Mic [PF/D] again. 3 On the display, is represented by “E”. 4 On the display, is represented by “F”. MIC LOCK The Mic Lock function disables the Mic PF keys to prevent you from accidentally changing the transceiver operation.
OPTIONAL ACCESSORIES PS-33/53 SP-50B MCP-1A Regulated DC Power Supply Communications Speaker Memory Control Program (Free Software) The MCP-1A can be downloaded at: http://www.kenwood.com/i/ products/info/amateur.html PG-2N PG-3B PG-5A DC Power Cable DC Line Noise Filter Data Cable (E market only) Programming Cable Ask your dealer about purchasing a Programming Cable.
TROUBLESHOOTING MAINTENANCE GENERAL INFORMATION This product has been factory aligned and tested to specification before shipment. Under normal circumstances, the transceiver will operate in accordance with these instructions. All adjustable trimmers, coils, and resistors in the transceiver were preset at the factory. They should only be readjusted by a qualified technician who is familiar with this transceiver and has the necessary test equipment.
Note: ◆ Record the date of purchase, serial number and dealer from whom this product was purchased. ◆ For your own information, retain a written record of any maintenance performed on this product. ◆ When claiming warranty service, please include a photocopy of the bill of sale, or other proof-of-purchase showing the date of sale. The Memory Channels have no data stored. The Weather Radio frequency (AL channel) is restored as 162.550 MHz (K market models only).
Full Reset Method 2: VFO Reset Method 1: 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 99 (RESET). 1 With the transceiver power OFF, press [VFO]+[ (Power). 2 Press [MENU] and turn the Tuning control to select “FULL”. ] • The VFO reset confirmation message appears. 3 Press [MENU]. • “SURE ?” appears. 2 Press [VFO]. • “SURE ?” appears. • Press any key other than [VFO] to cancel. • Press any key other than [MENU] to cancel. 4 Press [MENU] to reset the transceiver.
TROUBLESHOOTING 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. Please review these tables and the appropriate section(s) of this instruction manual before assuming your transceiver is defective.
Problem Probable Cause Corrective Action Page Ref. Memory Channels cannot be selected by turning the Tuning control or by pressing Mic [UP]/[DWN]. No data has been stored in any Memory Channels. Store data in some Memory Channels. 29 You cannot transmit even though you press Mic [PTT]. 1 The microphone plug was not inserted completely into the front panel connector. 1 Switch OFF the power, then insert the microphone plug until the locking tab clicks in place.
SPECIFICATIONS Specifications are subject to change without notice due to advancements in technology.
Transmitter Power output High M4 market models: 25 W All other market models: 60 W Low Approx. 25 W Modulation Reactance Spurious emissions –60 dB or less Wide: 5 kHz Narrow: 2.5 kHz Maximum frequency deviation Audio distortion (at 60% modulation) 3% or less Microphone impedance 600 Receiver Circuitry Intermediate frequency (1st/ 2nd) Double conversion superheterodyne 49.95 MHz/ 450 kHz Sensitivity (12 dB SINAD) Wide: 0.18 V or less Narrow: 0.
INDEX 1750 Hz .................................. 25 Accessories Optional .............................. 65 Supplied ................................ 1 All-Channel Scan .................... 42 Automatic Power Off ............... 54 Automatic Repeater Offset ...... 25 Automatic Simplex Check ....... 26 Automatic Dialer ..................... 51 Band Scan .............................. 40 Beat Shift ................................ 54 Beep Function ........................ 55 Busy Channel Lockout ............