Instruction/ maintenance manual of the product TM-271A, TM-271E Kenwood
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© B62-1738-00 (K,E,M2,M3) 09 08 07 06 05 04 03 02 01 00 INSTRUCTION MANUAL 144 MHz FM TRANSCEIVER VHF FM TRANSCEIVER TM-271A 144 MHz FM TRANSCEIVER TM-271E TM-271 MENU.
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THANK YOU! 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”.
i PRECAUTIONS Please observe the following precautions to prevent fire, personal injury , and/or transceiver damage: •D o not attempt to configure your transceiver while driving; it is simply too dangerous. •B e aware of local laws pertaining to the use of headphones/headsets while driving on public roads.
ii CONTENTS SELECTING A FREQUENCY .................................. 15 VFO M ODE .......................................................... 15 MHz M ODE .......................................................... 16 D IRECT F REQUENCY E NTRY .........
iii 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SCAN RESUME METHOD ...................................... 4 5 CHAPTER 9 SELECTIVE CALL CTCSS AND DCS ................................................... 46 CTCSS ....................................................
iv FREQUENCY STEP SIZE ....................................... 56 DISPLA Y BACKLIGHT ............................................. 57 P ERMANENT B ACKLIGHT ........................................... 57 A UT OMA TIC B ACKLIGHT ........................
1 SUPPLIED ACCESSORIES After carefully unpacking the transceiver , identify the items listed in the table below . We recommend you keep the box and packaging for shipping. A market area code (K, E, M2, or M3) can be found on the label attached to the package box.
2 1 PREP ARA TION 2 Position the transceiver , then insert and tighten the supplied hexagon SEMS screws (4) and flat washers (4). •D ouble check that all hardware is tightened to prevent vehicle vibration from loosening the bracket or transceiver .
3 1 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. •U se the full length of the cable without cutting off excess even if the cable is longer than required.
4 1 2 Connect the transceiver ’s DC power connector to the connector on the DC power cable. •P ress the connectors firmly together until the locking tab clicks. Note: ◆ For your transceiver to fully exhibit its performance capabilities, we recommend using the optional PS-33 (20.
5 1 R EPLACING F USES 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.
6 1 ACCESSORY CONNECTIONS E XTERNAL S PEAKER 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 .
7 1 CONNECTING TO A TNC (E M ARKET M ODELS O NL Y ) To connect an external TNC to the transceiver , use an optional PG-5A cable. The DA T A connector on the rear of the transceiver mates with the 6-pin mini-DIN plug on this cable.
8 2 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.
9 3 GETTING ACQUAINTED FRONT P ANEL 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.
10 3 In MR Mode, press [F] then press [VFO] to transfer the contents of the selected Memory Channel to the VFO {page 33}. t t t t t MR key Press to enter Memory Recall Mode {page 30}. In this mode, you can change memory channels using the T uning control or Mic [UP] / [DWN] .
11 3 y Appears when the Automatic Simplex Check (ASC) function is activated {page 26}. u Appears when the Priority Scan function is activated {page 43}. i Appears when the Weather Alert function is activated {page 36}. (K m arket models only .) o Appears when narrow FM Mode is selected {page 60}.
12 3 REAR P ANEL q w e r q q q q 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 .
13 3 r r r r 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 t t t t VFO/B key Identical to the front panel VFO key . This key can be reprogrammed if desired {page 59 }.
14 4 OPERA TING BASICS SWITCHING THE POWER ON/OFF 1 Press [ ] (Power) to switch the transceiver power ON. •A high pitched double beep sounds and a Power-on message {page 60} appears briefly , followed by the frequency and other indicators. 2 To switch the transceiver OFF , press [ ] (Power) (1s) .
15 4 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 ( ).
16 4 MH Z M ODE 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 While in VFO or Call Mode, press [MENU] . •T he MHz digit blinks. 2 T urn the T uning control to select the desired MHz value.
17 4 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 Example 2 To enter 145.000 MHz: Key in Display [Enter] – –– ––– [1] , [4] , [5] 1 4 5. – – – [Enter] 1 4 5.
18 5 MENU SETUP WHA T 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 .
19 5 MENU FUNCTION LIST e h t n O y a l p s i d u n e M . o N n o i t c n u F s n o i t c e l e S t l u a f e D . f e R e g a P P T S1 e z i s p e t s y c n e u q e r F / 0 5 / 0 3 / 5 2 / 0 2 / 5 1 / 5 . 2 1 / 0 1 / 5 2 . 6 / 5 / 5 . 2 z H k 0 0 1 e e s ( s e i r a V ) e g a p e c n e r e f e r 6 5 T2 y c n e u q e r f e n o Tz H 1 .
20 5 e h t n O y a l p s i d u n e M . o N n o i t c n u F s n o i t c e l e S t l u a f e D . f e R e g a P K C9 1y e k L L A C0 5 7 1 / L L A C e e s ( s e i r a V ) e g a p e c n e r e f e r 5 3 , 5 2 D L H0 2d l o h X T e n o t z H 0 5 7 1F F O / N OF F O5 2 T O T1 2r e m i T t u o - e m i T.
21 5 e h t n O y a l p s i d u n e M . o N n o i t c n u F s n o i t c e l e S t l u a f e D . f e R e g a P 2 F P6 3 e l b a m m a r g o r p e n o h p o r c i M y e k n o i t c n u f / L L A C / R M / O F V / 0 5 7 1 / R E T N E / I N O M / N I . C / N I .
22 6 OPERA TING THROUGH REPEA TERS 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 (Ef fective Radiated Power) than a typical station.
23 6 PROGRAMMING AN OFFSET Y ou must first select an amateur radio repeater downlink frequency as described in “S ELECTING AN O FFSET F REQUENCY ”. S ELECTING AN O FFSET D IRECTION Select whether the transmit frequency will be higher (+) or lower (–) than the receive frequency .
24 6 A CTIV A TING THE T ONE F UNCTION To activate T one, press [F] , [CALL] . •A s you press [F] , [CALL] , the selection cycles as follows: “OFF” ➞ “T ONE” ➞ “CTCSS” ➞ “DCS” ➞ “OFF”. •“ T” appears on the upper part of display , indicating that the T one function is activated.
25 6 AUTOMA TIC REPEA TER OFFSET 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 . T o obtain an up-to-date band plan for repeater offset direction, contact your national Amateur Radio association.
26 6 REVERSE FUNCTION The reverse function exchanges a separate receive 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 .
27 6 Note: ◆ Pressing [PTT] causes the “ ” icon to quit blinking. ◆ ASC can be activated while operating in Simplex mode. However , it does not change the T ransmission/Reception frequencies. ◆ ASC does not function while scanning. ◆ Activating ASC while using Reverse switches Reverse OFF .
28 7 MEMOR Y 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.
29 7 The data listed below can be stored in each Memory Channel: r e t e m a r a P & x e l p m i S r e t a e p e R t i l p S - d d O y c n e u q e r f e v i e c e R s e Y s e Y y c n e u q e r f t.
30 7 •M emory 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 T urn the T uning control or press Mic [UP] / [DWN] to select the Memory Channel in which you want to store the data.
31 7 U SING THE M ICROPHONE K EYP AD Y ou can also recall a Memory Channel by entering a desired Memory Channel number with the microphone keypad. 1 Press [MR] to enter Memory Recall mode. 2 Press the microphone key assigned the ENTER function. 3 Enter the channel number using the microphone keypad.
32 7 NAMING A MEMORY CHANNEL Y ou 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.
33 7 MEMORY CHANNEL TRANSFER M EMORY VFO T RANSFER 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.
34 7 The tables below illustrate how data is transferred between Memory Channels. 9 9 1 ~ 0 l e n n a h C a 9 9 1 ~ 0 l e n n a h C y c n e u q e r f e v i e c e R a y c n e u q e r f e v i e c e R y .
35 7 CALL CHANNEL Call Channel default settings: •O n K and M market models, pressing [CALL] changes the transceiver to the Call Channel. •O n 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.
36 7 Note: ◆ When you recall an odd-split Call Channel, “+” and “–” appear on the display . ◆ T ransmit offset status and Reverse status are not stored in an odd-split Call Channel. WEA THER ALER T (K M ARKET M ODELS O NL Y ) Any of the NOAA Weather Radio channels can be programmed to the AL memory channel of the transceiver .
37 7 4 Press any key other than [MENU] to exit Menu Mode. •T he transceiver automatically changes to the AL channel. •T he T one, CTCSS, and DCS functions cannot be configured to the AL channel. •P riority Scan is set to OFF automatically when the W eather Alert function is turned ON.
38 7 While in Channel Display mode, you cannot activate the following functions: •V F O Mode •V F O Scan •C all/VFO Scan • MHz Scan •S can Direction •M emory Store •M emory to VFO T rans.
39 8 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 .
40 8 NORMAL SCAN When you are operating the transceiver in VFO Mode, 3 types of scanning are available: Band Scan, Program Scan, and MHz Scan. B AND S CAN The transceiver scans the entire band of the frequency you selected. For example, if you are operating and receiving at 144.
41 8 7 T urn the T uning control or press Mic [UP] / [DWN] to select a matching Memory Channel from U0 ~ U2. •F or example, if you have selected “L0” in step 3, select Memory Channel “U0”. 8 Press [MR] to store the end frequency in the Memory Channel.
42 8 MEMORY SCAN Memory Scan monitors Memory Channels in which you have stored frequencies. A LL -C HANNEL S CAN The transceiver scans all of the Memory Channels in which you have stored frequencies. 1 Press [MR] (1s) . •S can starts from the last Memory Channel number and ascends up through the channel numbers (default).
43 8 CALL SCAN Y ou 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 T uning control or press Mic [UP] / [DWN] to select the desired frequency .
44 8 U SING P RIORITY S CAN 1 Press [F] , [MENU] and turn the T uning control to select Menu No. 12 (PRI). 2 Press [MENU] and turn the T uning control to select “ON” or “OFF” (default). 3 Press [MENU] to store the setting or any other key to cancel.
45 8 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.
46 9 SELECTIVE CALL CTCSS AND DCS Y ou 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 T one Coded Squelch System) and DCS (Digital Coded Squelch).
47 9 S ELECTING A CTCSS F REQUENCY 1 Press [F] , [MENU] and turn the T uning control or press Mic [UP] / [DWN] to select Menu No. 3 (CT). •T he current CTCSS frequency appears. 2 Press [MENU] and turn the T uning control to select your desired CTCSS frequency .
48 9 •W hile scanning, the decimal point of the CTCSS frequency blinks. •T o reverse the scan direction, turn the T uning control or press Mic [UP] / [DWN] . •T o quit the function, press any key . • When a CTCSS frequency is identified, the identified frequency appears and blinks.
49 9 •T he available DCS codes are shown in the following table. s e d o C S C D 4 0 1 3 2 05 6 02 3 15 0 25 5 21 3 33 1 45 6 42 1 61 3 7 5 2 01 7 04 3 12 1 21 6 22 3 33 2 46 6 44 2 62 3 7 6 2 02 7 .
50 10 DUAL TONE MUL TI-FREQUENCY (DTMF) FUNCTIONS This transceiver provides you with 10 dedicated DTMF Memory Channels. Y ou can store a DTMF number (16 digits max.) in each of these channels to recall later for speed dialing. Many repeaters in the U.
51 10 DTMF TX H OLD 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 T uning control to select Menu No.
52 10 6 Repeat steps 4 and 5 to enter up to 16 digits. 7 Press [MENU] to complete the entry . •P ress any key other than [MR] , [VFO] , [F] , and [MENU] to cancel the entry . •T o complete an entry of less than 16 digits, press [MENU] two times. 8 Press any key other than [MENU] to exit Menu Mode.
53 10 A DJUSTING THE P AUSE D URA TION Y ou can change the pause duration (a space digit) stored in Memory Channels. The default setting is 500 milliseconds. 1 Press [F] , [MENU] and turn the T uning control to select Menu No. 31 (P A). 2 Press [MENU] and turn the T uning control to select 100, 250, 500 (default), 750, 1000, 1500, or 2000 ms.
54 11 AUXILIAR Y FUNCTIONS APO (AUTO POWER OFF) 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.
55 11 1 Press [F] , [MENU] and turn the T uning control to select Menu No. 8 (SSQ). 2 Press [MENU] and turn the T uning control to select “ON” or “OFF” (default). 3 Press [MENU] to store the setting. •T he S-meter setting segments appear . 4 Press any key other than [MENU] to exit Menu Mode.
56 11 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. The transceiver generates the following warning beeps even if the Beep function is turned OFF .
57 11 The default step size for each model is as follows: e d o C t e k r a M e z i S p e t S y c n e u q e r F t l u a f e D Kz H k 5 Ez H k 5 . 2 1 2 Mz H k 5 . 2 1 3 Mz H k 5 . 2 1 Note: The market code is printed on the barcode label of the carton box.
58 11 LOCK FUNCTION The lock function disables most of the keys to prevent you from accidentally activating a function. T ransceiver Lock is suitable for a typical mobile installation where you select most operations using the microphone. 1 Press [F] (1s) .
59 11 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. MICROPHONE PF KEYS (K EYP AD M ODELS O NL Y ) Y ou can access many transceiver settings without using transceiver keys or controls.
60 11 • SHIFT : Shift function ON/OFF •L OW: Select transmission power • BRIGHT : Adjust display backlight •L OCK: T ransceiver Lock function ON/OFF (must be held down for 1 second to activate.
61 11 3 T urn the T uning control to select a character . •Y ou can enter the following alphanumeric characters: 0 ~ 9, A ~ Z, – (hyphen), / (slash), and a space. •R ather than using the T uning control, you can use the Mic keypad (keypad models only) to enter alphanumeric characters {page 64}.
62 11 TIME-OUT TIMER The T ime-out T imer 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 .
63 12 MICROPHONE CONTROL Y ou 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.
64 12 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. T o transmit the “D” tone, press Mic [PF/D] again.
65 13 OPTIONAL ACCESSORIES MC-60A Stand Microphone (MJ-88 required) PG-2N DC Power Cable KPG-46 Programming Cable SP-50B Communications Speaker MCP-1A Memory Control Program (Free Software) The MCP-1A can be downloaded at: http://www .kenwood.com/i/ products/info/amateur .
66 14 TROUBLESHOOTING MAINTENANCE G ENERAL I NFORMA TION 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 .
67 14 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.
68 14 Full Reset Method 2: 1 Press [F] , [MENU] and turn the T uning control to select Menu No. 99 (RESET). 2 Press [MENU] and turn the T uning control to select “FULL”. 3 Press [MENU] . •“ SURE ?” appears. •P ress any key other than [MENU] to cancel.
69 14 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.
70 14 m e l b o r P e s u a C e l b a b o r P n o i t c A e v i t c e r r o C . f e R e g a P t o n n a c s l e n n a h C y r o m e M e h t g n i n r u t y b d e t c e l e s e b g n i n u T y b r o l o r t n o c c i M g n i s s e r p ] P U [ / ] N W D [ .
71 SPECIFICA TIONS Specifications are subject to change without notice due to advancements in technology . l a r e n e G e g n a r y c n e u q e r f X T s l e d o m t e k r a m Kz H M 8 4 1 ~ 4 4 1 s .
72 r e t t i m s n a r T t u p t u o r e w o P h g i HW 0 6 w o LW 5 2 . x o r p p A n o i t a l u d o M e c n a t c a e R s n o i s s i m e s u o i r u p S s s e l r o B d 0 6 – n o i t a i v e d y c n e u q e r f m u m i x a M : e d i W ± z H k 5 : w o r r a N ± z H k 5 .
An important point after buying a device Kenwood TM-271A, TM-271E (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kenwood TM-271A, TM-271E yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kenwood TM-271A, TM-271E - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kenwood TM-271A, TM-271E you will learn all the available features of the product, as well as information on its operation. The information that you get Kenwood TM-271A, TM-271E will certainly help you make a decision on the purchase.
If you already are a holder of Kenwood TM-271A, TM-271E, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kenwood TM-271A, TM-271E.
However, one of the most important roles played by the user manual is to help in solving problems with Kenwood TM-271A, TM-271E. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kenwood TM-271A, TM-271E along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
