Kenwood Tm-271a/e Transceiver Instruction Manual

							4
1
2Connect the transceiver’s DC power connector to the
connector on the DC power cable.
•Press 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 A, 25% duty cycle)
power supply.
◆Before connecting the DC power supply to the transceiver, be
sure to switch the transceiver and the DC power supply OFF.
◆Do not plug the DC power supply into an AC outlet until you makeall connections.
FIXED STAT ION OPERATION
In order to use this transceiver for fixed station 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.
1Connect the DC power cable to the regulated DC
power supply and ensure that the polarities are
correct (Red: positive, Black: negative).
•Do not directly connect the transceiver to an AC outlet.
•Use the supplied DC power cable to connect the
transceiver to a regulated power supply.
•Do not substitute a cable with smaller gauge wires.
To AC outlet Regulated DC
power supply
Black (–)Red (+)Fuse holder
Fuse holder
Fuse holder 
						

							5
1
REPLACING FUSES
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.
n o i t a c o L e s u Fg n i t a R t n e r r u C e s u F
r e v i e c s n a r TA5 1
y r o s s e c c A d e i l p p u S
e l b a C r e w o P C DA 0 2
Only use fuses of the specified type and rating; otherwise the
transceiver could be damaged.
Note:  If you use the transceiver for a long period when the vehicle
battery is not fully charged, or when the engine is OFF, the battery
may become discharged, and will not have sufficient reserves to start
the vehicle.  Avoid using the transceiver under these conditions.
ANTENNA CONNECTION
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.  The
transceiver can give excellent results if the antenna
system and its installation are given careful attention.
Use a 50 Ω impedance antenna and low-loss coaxial
feed line that has a characteristic impedance of 50 Ω,  to
match the transceiver input impedance.  Coupling the
antenna to the transceiver via feed lines having an
impedance other than 50 Ω reduces the efficiency of the
antenna system and can cause interference to nearby
broadcast television receivers, radio receivers, and other
electronic equipment.
Note:  E market models use an N-type antenna connector while othermodels use an M-type (SO-239) connector.
◆Transmitting without first connecting an antenna or other matched
load may damage the transceiver.  Always connect the antenna to
the transceiver before transmitting.
◆All fixed stations should be equipped with a lightning arrester to
reduce the risk of fire, electric shock, and transceiver damage.
Feed line connector Antenna connector
To antenna 
						

							6
1
ACCESSORY CONNECTIONS
E
XTERNAL SPEAKER
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.
MICROPHONE
For voice communications, connect a 600 Ω microphone
equipped with an 8-pin modular plug into the modular
socket on the front of the main unit.  Press firmly on the
plug until the locking tab clicks.
Attach the supplied microphone hanger in an appropriate
location using the screws included in the screw set.
Microphone hanger
Microphone
hanger screw
(3 mm x 10 mm)
Keypad serial data
No Connection
MIC, 600 Ω impedance
GND (MIC)
PTT
GND
DC 8 V, 100 mA max
No Connection
PC CONNECTION
To utilize the optional MCP-1A software, you must first
connect the transceiver to your PC using the KPG-46
Programming Cable (via the microphone jack).
The MCP-1A is free downloadable software available
from KENWOOD at the following URL:
http://www.kenwood.com/i/products/info/amateur.html 
						

							7
1
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.
. o N n i Pe m a N n i Pn o i t c n u F
1DK Pt u p n i a t a d t e k c a P
•re v i e c s n a r t o t C N T m o r f a t a d X T
2DN GDK P r o f d n u o r G
3SK Py b d n a t s t e k c a P
•eh t t i b i h n i o t n i p s i h t e s u n a c C N T
t u p n i e n o h p o r c i m r e v i e c s n a r t
. s l a n g i s t e k c a p g n i t t i m s n a r t e l i h w
49R Ps p b 0 0 6 9 d e t c e t e d f o t u p t u O
V m 0 0 5 ( a t a d
P - Pk 0 1 ,Ω)
•ni p n o m m o c a s a s n o i t c n u f o s l A
a t a d s p b 0 0 6 9 d n a s p b 0 0 2 1 r o f
. t u p t u o
51R Ps p b 0 0 2 1 d e t c e t e d f o t u p t u O
V m 0 0 5 ( a t a dP - Pk 0 1 ,Ω)
6CQ St u p t u o l o r t n o c h c l e u q S
•gn i t t i m s n a r t a t a d C N T s t i b i h n I
. n e p o s i h c l e u q s r e v i e c s n a r t e l i h w
•ec i o v o t e c n e r e f r e t n i s t n e v e r P
e m a s e h t n o s n o i t a c i n u m m o c
. s e i r t e r s t n e v e r p o s l A . y c n e u q e r f
•le v e L t u p t u O
) h g i H ( V 5 + : h c l e u q s n e p O
) w o L ( V 0 : h c l e u q s d e s o l C
Note:
◆If the external TNC has a common pin for 1200 bps and 9600 bps
data output, connect this pin to the DATA connector PR9 pin.
Shorting the PR9 and PR1 pins will cause the TNC to malfunction.
◆Adjust the transceiver data communication speed (1200 bps or
9600 bps) as necessary {page 58}.
◆If DC voltage is input to the PR1 pin, the external TNC may not
function.  If this problem happens, add a 10 µF capacitor between
the PR1 pin and the TNC.  Be careful with the polarity of the
capacitor.
GND 
						

							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.
YOUR FIRST QSO
qPress [  ] (Power) briefly to switch the transceiver
power ON.
•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 those parameters
the next time you turn the transceiver ON.
wTurn the Volume control clockwise, to the 9 o’clock
position.
eTurn the Tuning control to select a reception
frequency.
•You may further turn the Volume control to adjust the
volume level of the signal.
rTo transmit, hold the microphone approximately 5 cm
(2 inches) from your mouth.
tPress and hold Mic [PTT], then speak in your normal
tone of voice.
yRelease Mic [PTT] to receive.
uRepeat steps r, t, and y to continue
communication.
TM-271MENU
qw e
t
y 
						

							9
3
GETTING ACQUAINTED
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.
qw
ertyu
TM-271MENU
q qq q
q (Power) switch/ Volume control
Press to switch the transceiver power ON or OFF
{page 14}.
Turn to adjust the level of the receive audio from the
speaker {page 14}.
w ww w
wMENU button/ Tuning control
Press to enter MHz Mode {page 16}.  In this mode,
you can change the operating frequency in 1 MHz
steps using the Tuning control or Mic [UP]/[DWN].
Press and hold for 1 second while in VFO Mode to
begin MHz Scan {page 41} or while in MR Mode to
begin Group Scan {page 42}.Press [F] then press [MENU] to enter Menu Mode
{page 18}.
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}.
•Scan direction while scanning {pages 27, 39, 47, 49}.
e ee e
eCALL key
Press to recall the Call Channel {page 35}.  Press
and hold for 1 second while in VFO Mode to begin
Call/VFO Scan {page 43}.  Press and hold for
1 second while in Memory Recall Mode to begin Call/
Memory Scan {page 43}.
Press [F] then press [CALL] to activate the Tone
{page 24}, CTCSS {page 46}, or DCS {page 48}
function.
r rr r
rVFO key
Press to enter VFO Mode {page 15}.  In this mode,
you can change the operating frequency using the
Tuning control or Mic [UP]/[DWN].  Press and hold
for 1 second while in VFO Mode to begin Band Scan
{page 40}.  Press and hold for 1 second while in VFO
Mode after programming a scan range to begin
Program Scan {page 40}. 
						

							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 tt t
tMR 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}.
Press [F], use the Tuning control to select the
desired channel, then press [MR] to reprogram the
Call Channel or a Memory Channel {page 29}.
y yy y
yREV key
Press to switch the transmit frequency and receive
frequency when operating with an offset {page 23} or
an odd-split Memory Channel {page 28}.
Press [F] then press [REV] and rotate the Tuning
control to increase or decrease the squelch level
{page 14}.
u uu u
u/F key
Press and hold for 1 second to lock the transceiver
keys {page 58}.
Press momentarily to access the second functions of
the transceiver keys.
DISPLAY
i
u
y
t r
qw
e!1
!2!4!3 o!5!6!7
!0
q
Appears when the CTCSS function is activated {page 46}.
w 
Appears when the Tone function is activated {page 24}.
e
Appears when the DCS function is activated {page 48}.
r
Appears when the repeater shift function is activated
{pages 23, 30}.  (“
” is not used on this transceiver.)
t
Appears when the Reverse function is activated {page 26}. 
						

							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 market models only.)
o
Appears when narrow FM Mode is selected {page 60}.
!0
Displays the frequencies, Menu settings, Memory name
and other information.
!1
Displays the Menu No., Memory Channel number, and
status {pages 18, 29}.
!2
Appears when the displayed Memory Channel has data
{page 29}.
!3
Appears when the Key Lock function is ON {page 58}.!4
Appears when the Memory Channel Lockout function is
ON {page 44}.
!5
Shows the strength of transmitted {page 15} and received
{page 54} signals.
 indicates the squelch is open and the frequency is
“busy”.  It also appears when the squelch is set to
minimum {page 14}.  If using CTCSS or DCS, it indicates
the squelch is open due to a received signal that
contains the same CTCSS tone or DCS code that is set
in your transceiver.
 acts as an S-meter while
receiving and an RF power meter while transmitting.
 indicates the transceiver is transmitting.
!6
Appears when the function key is pressed.
!7
H appears when high power transmission is selected
and L appears when low power is selected {page 15}.
(“M” is not used on this transceiver.) 
						

							12
3
REAR PANEL
qwer
q qq q
qAntenna 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 whileother models use an M-type (SO-239) connector.
w ww w
wData cable (E market versions only)
Connect this cable to a TNC {page 7}.
e ee e
ePower Input 13.8 V DC cable
Connect a 13.8 V DC power source here.  Use the
supplied DC power cable {pages 3, 4}.
r rr r
rSP (speaker) jack
If desired, connect an optional external speaker for
clearer audio.  This jack accepts a 3.5 mm (1/8)
mono (2-conductor) plug.  See page 6.
MICROPHONE
qqr
t
y
u
i w
e
q qq q
qPTT (Push-to-Talk) switch
Press and hold to transmit.  Release to receive.
w ww w
wDWN/ key
Press to lower the operating frequency, Memory
Channel number, Menu Number, etc.  Hold down to
repeat the action.  Also press to switch between
values for functions with multiple choices.  Press and
hold Mic [PTT], then press [DWN/
] to transmit .
e ee e
eUP/ key
Press to raise the operating frequency, Memory
Channel number, Menu Number, etc.  Hold down to
repeat the action.  Also press to switch between
values for functions with multiple choices.  Press and
hold Mic [PTT], then press [UP/
] to transmit .
DTMF Microphone Microphone (KMC-30) 
						

							13
3
r rr r
rCALL/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 tt t
tVFO/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.
y yy y
yMR/C key
Identical to the front panel MR key.  This key can be
reprogrammed if desired {page 59}.  Press and hold
Mic [PTT], then press [MR/C] to transmit C.
u uu u
uPF/D key
The default function of this key is 1 MHz step.  This
key can be reprogrammed if desired {page 59}.
Press and hold Mic [PTT], then press [PF/D] to
transmit D.
i ii i
iDTMF keypad
This 16-key keypad is used for DTMF functions
{page 50} or to directly enter an operating frequency
{page 16}, or a Memory Channel number {page 30}.
The keypad can also be used to program a Memory
Channel name, Power-on message, or other
character strings {page 63}.
MIC KEYPAD DIRECT ENTRY
The microphone keypad (keypad models only) allows
you to make various entries depending on which mode
the transceiver is in.
In VFO or Memory Recall mode, use the Mic keypad to
select a frequency {page 16} or Memory Channel
number {page 30}.  First press the Mic PF key assigned
the ENTER function {page 59}.
To manually send a DTMF number, press and hold Mic
[PTT], then press the DTMF keys on the Mic keypad
{page 50} in sequence.
You can also use the Mic keypad to program a Memory
Channel name, Power-on message, or other character
strings {page 63}.