Kenwood Tm-271a/e Transceiver Instruction Manual

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AUXILIARY 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.
You can select the APO time from OFF (disable), 30, 60,
90, 120, or 180 minutes.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 18 (APO).
2Press [MENU] and turn the Tuning control to select
the APO time from OFF (default), 30, 60, 90, 120, or
180 minutes.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Note:
◆APO continues to count even while the transceiver is scanning.
◆The APO timer starts counting down the time when no key
presses, no control adjustments, and no PC control command
sequences are detected.
◆The APO warning beep sounds even if Menu No. 24 (BP){page 55} is set to “OFF” or the volume level is 0.
BEAT SHIFT
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.  In this case, turn the
Beat Shift function ON.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 25 (BS).
2Press [MENU] and turn the Tuning control to select
“ON” or “OFF” (default).
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
S-METER SQUELCH
S-meter Squelch causes the squelch to open only when
a signal with a strength greater than or the same as the
S-meter setting is received.  This function relieves you
from constantly resetting the squelch when receiving
weak stations you have no interest in. 
						

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1Press [F], [MENU] and turn the Tuning control to
select Menu No. 8 (SSQ).
2Press [MENU] and turn the Tuning control to select
“ON” or “OFF” (default).
3Press [MENU] to store the setting.
•The S-meter setting segments appear.
4Press any key other than [MENU] to exit Menu Mode.
5Press [F], [REV] to enter S-Meter Level Select Mode.
6Turn the Tuning control to select your desired level.
7Press any key other than [ 
 ] (Power) to store the
setting and exit S-Meter Level Select Mode.
SQUELCH HANG TIME
When using S-meter Squelch, you may want to adjust
the time interval between when the received signals drop
and when the squelch closes.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 9 (SQH).2Press [MENU] and turn the Tuning control to select
from OFF (default), 125, 250, and 500 ms.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
BEEP FUNCTION
The Beep function provides confirmation of entry, error
status, and malfunctions of the transceiver.  We
recommend you leave this function ON in order to detect
erroneous operations and malfunctions.
However, to turn the beep function OFF:
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 24 (BP).
2Press [MENU] and turn the Tuning control to select
“OFF”. 
						

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3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
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.
BUSY CHANNEL LOCKOUT
This function is used to prevent transmitting on a
channel or frequency that somebody else is currently
using.  When turned ON, an error beep sounds and you
cannot transmit even if you press Mic [PTT] while
another party is using the channel or frequency.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 22 (BCL).
2Press [MENU] and turn the Tuning control to select
“ON” or “OFF” (default).
3Press [MENU] to store the setting or any other key to
cancel.4Press any key other than [MENU] to exit Menu Mode.
FREQUENCY STEP SIZE
Choosing the correct frequency step size is essential in
selecting your exact receive frequency using the Tuning
control or Mic [UP]/[DWN].  You can select your desired
frequency step size from:
2.5 kHz, 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:
1While in VFO Mode, press [F], [MENU] and turn the
Tuning control to select Menu No. 1 (STP).
2Press [MENU] and turn the Tuning control to select
your desired frequency step size.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Note:  If you change to a frequency step size that does not match the
current operating frequency, the transceiver automatically adjusts the
frequency to match the new frequency step size. 
						

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The default step size for each model is as follows:
e d o C t e k r a Me z i S p e t S y c n e u q e r F t l u a f e D
KzH k 5
EzH k 5 . 2 1
2 MzH k 5 . 2 1
3 MzH k 5 . 2 1
Note:  The market code is printed on the barcode label of the cartonbox.
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.
PERMANENT BACKLIGHT
When a permanent setting is selected, the backlight will
remain at that setting until it is changed again.  The
default setting is the maximum brightness.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 40 (BRIGHT).
2Press [MENU] and turn the Tuning control to adjust
the display brightness.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Note:  Setting the brightness to OFF (minimum level 1) will turn thefront panel key backlight OFF.
AUTOMATIC BACKLIGHT
When using automatic backlight, the display backlight
will illuminate every time a front panel or microphone key
is pressed.  The backlight remains on for 5 seconds
before it turns off again.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 41 (ABR).
2Press [MENU] and turn the Tuning control to select
“ON” or “OFF” (default).
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Note:  No change occurs if the brightness is set to the highest level. 
						

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LOCK FUNCTION
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.
1Press [F] (1s).
•“” appears when this function is ON.
•The following keys cannot be locked:
[ 
 ] (Power), [F] (1s), [F]+[REV], Vo lume control,
[PTT], and the Mic keypad.
2Press [F] (1s) again to unlock the keys.
Note:
◆The Tuning control is also locked.  To retain use of the Tuning
control while the Lock function is ON, access Menu No. 27 (ENC)
{below} and select “ON”.
◆You cannot reset the transceiver {page 67} while the Lock function
is ON.
◆You cannot switch the transceiver operating mode by pressing
[  ] (Power) + any key.
◆Microphone PF keys {page 59} operate normally even if the Lockfunction is ON.
DATA COMMUNICATION SPEED
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.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 39 (DT).
2Press [MENU] and turn the Tuning control to select
“1200” (default) or “9600”.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
TUNE ENABLE
While the Lock function is ON, you sometimes may want
to turn the Tuning control to change the frequency.  In
this case, turn the Tune Enable function ON.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 27 (ENC).
2Press [MENU] and turn the Tuning control to select
“OFF” (default) or “ON”. 
						

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3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
MICROPHONE PF KEYS (KEYPAD MODELS ONLY)
You can access many transceiver settings without using
transceiver keys or controls.  Microphone keys PF/D,
MR/C, VFO/B, and CALL/A are programmable with
transceiver functions.
The microphone key default assignments are as follows:
Mic PF1 key [PF/D]:1 MHz step
Mic PF2 key [MR/C]:Memory Recall
Mic PF3 key [VFO/B]:VFO Select
Mic PF4 key [CALL/A]:Call Channel Select
Note:
◆Turn the transceiver OFF before connecting the speaker/
microphone.
◆Menu No. 34 (MCL) must be configured to “OFF” in order toprogram the microphone keys.
1Press [F], [MENU] and turn the Tuning control to
select one of Menu No. 35 to Menu No. 38
(PF1 ~ PF4).2Press [MENU] and turn the Tuning control to select
the programmable function from the list provided
below.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Programmable Functions
•MONI: Monitor function ON/OFF
•ENTER: Used to enter a frequency or memory channel
number with the keypad
•1750: Transmit 1750 Hz
•VFO: Enter VFO Mode
•MR: Enter MR Mode
•CALL: Select the Call Channel
•MHZ: Enter 1 MHz Step Mode
•REV: Reverse function ON/OFF (momentary press) and
Auto Simplex Checker function ON/OFF (must be held
down for 1 second to activate)
•SQL: Enter Squelch Mode
•M--V: Memory to VFO transfer
•M.IN: Store a Memory Channel
•C.IN: Store the Call Channel
•MENU: Enter Menu Mode 
						

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¥SHIFT: Shift function ON/OFF
¥LOW: Select transmission power
¥BRIGHT: Adjust display backlight
¥LOCK: Transceiver Lock function ON/OFF (must be held
down for 1 second to activate)
¥TONE: Selection for Tone/ Selective Call
¥STEP: Select the frequency step size
Note:  Rather than entering Menu Mode and selecting PF1 ~ PF4,
you can simply press and hold the PF key you want to program, then
turn the transceiver power ON.  When programming the PF keys in
this manner, select the function by turning the Tuning control or
pressing Mic [UP]/[DWN], press [MENU] to store the setting, then
press any key other than [MENU] to exit Menu Mode.
NARROW BAND FM OPERATION
By default, the transceiver operates in normal FM
(±5 kHz) mode for both transmission and reception.  You
can also operate the transceiver in narrow band FM
(±2.5 kHz).
To operate the transceiver in narrow band FM:
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 26 (FMN).
2Press [MENU] and turn the Tuning control to select
“ON” or “OFF” (default).
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
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 theMemory Channels {page 29}.
POWER-ON MESSAGE
You can change the Power-on message (a maximum of
6 characters) when the transceiver is turned ON.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 23 (P.ON.MSG).
2Press [MENU].
•The current message and entry cursor appear. 
						

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3Turn 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}.
4Press [MR] to move to the next digit.
•To move to the previous digit, press [VFO].  To delete
the character at the current cursor position, press [F].
5Repeat steps 3 and 4 to enter up to 6 digits.
6Press [MENU] to complete the setting and store the
Power-on message.
7Press any key other than [MENU] to exit Menu Mode.
Note:  If a Power-on message is not set, the transceiver model nameappears when the transceiver power is turned ON.
PROGRAMMABLE VFO
To limit the operating frequencies within a certain range,
program the upper and lower frequency limits to the
program VFO parameters.  For example, if you select
144 MHz for the lower limit and 145 MHz for the upper
limit, the tunable range will be limited from 144.000 MHz
to 145.9975 MHz.1While 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.
2Press [MENU] and turn the Tuning control to select
the lower limit frequency (in MHz).
3Press [MENU] and turn the Tuning control to select
the upper limit frequency (in MHz).
4Press [MENU] to store the setting or any other key to
cancel.
5Press any key other than [MENU] to exit Menu Mode.
Note:
◆You cannot program the 100 kHz or lower digits.
◆The upper limit frequency cannot be set lower than the selectedlower limit frequency. 
						

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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.
1Press [F], [MENU] and turn the Tuning control to
select Menu No. 21 (TOT).
2Press [MENU] and turn the Tuning control to select
“3”, “5” or “10” (default) minutes.
3Press [MENU] to store the setting or any other key to
cancel.
4Press any key other than [MENU] to exit Menu Mode.
Note:  A warning beep sounds even if you set Menu No. 24 (BP) toOFF {page 55}. 
						

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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.
y e Ke d o M X Re d o M X T1e m a N y r o m e M g n i r o t SF M T D g n i r o t S
y r o m e Mn o - r e w o P g n i r o t S
e g a s s e M
1A/ N1e n o T t i m s n a r Two l e b , e t o n e e S1e d o C t u p n Iwo l e b , e t o n e e S
2A/ N2e n o T t i m s n a r Two l e b , e t o n e e S2e d o C t u p n Iwo l e b , e t o n e e S
3A/ N3e n o T t i m s n a r Two l e b , e t o n e e S3e d o C t u p n Iwo l e b , e t o n e e S
4A/ N4e n o T t i m s n a r Two l e b , e t o n e e S4e d o C t u p n Iwo l e b , e t o n e e S
5A/ N5e n o T t i m s n a r Two l e b , e t o n e e S5e d o C t u p n Iwo l e b , e t o n e e S
6A/ N6e n o T t i m s n a r Two l e b , e t o n e e S6e d o C t u p n Iwo l e b , e t o n e e S
7A/ N7e n o T t i m s n a r Two l e b , e t o n e e S7e d o C t u p n Iwo l e b , e t o n e e S
8A/ N8e n o T t i m s n a r Two l e b , e t o n e e S8e d o C t u p n Iwo l e b , e t o n e e S
9A/ N9e n o T t i m s n a r Two l e b , e t o n e e S9e d o C t u p n Iwo l e b , e t o n e e S
0A/ N0e n o T t i m s n a r Two l e b , e t o n e e S0e d o C t u p n Iwo l e b , e t o n e e S
A / L L A Cno i t c n u f d e n g i s s AAe n o T t i m s n a r Tre t c a r a h c t n e r r u c e t e l e DAe d o C t u p n Ire t c a r a h c t n e r r u c e t e l e D
B / O F Vno i t c n u f d e n g i s s ABe n o T t i m s n a r T
t i g i d s u o i v e r p o t r o s r u c e v o MB e d o C t u p n It i g i d s u o i v e r p o t r o s r u c e v o M
C / R Mno i t c n u f d e n g i s s ACe n o T t i m s n a r Tti g i d t x e n o t r o s r u c e v o MCe d o C t u p n Iti g i d t x e n o t r o s r u c e v o M
D / F Pno i t c n u f d e n g i s s ADe n o T t i m s n a r T
2e m a N y r o m e M m r i f n o CDe d o C t u p n Ie g a s s e M n o - r e w o P m r i f n o C
/ N W D_ _n w o Den o T t i m s n a r T_n w o d r e t c a r a h c e v o Med o C t u p n I_3n w o d r e t c a r a h c e v o M
# / P UpU#e n o T t i m s n a r Tpu r e t c a r a h c e v o M#e d o C t u p n I
4p u r e t c a r a h c e v o M