Yaesu Musen 50023X20 AIR BAND HT RADIO User Manual 1
Yaesu Musen Co., Ltd. AIR BAND HT RADIO 1
Contents
- 1. User Manual 1
- 2. User Manual 2
User Manual 1

Operating Manual
AIR BAND TRANSCEIVER
FTA-250L

Contents
Important Notice! ............................................................... 1
Introduction ........................................................................2
Accessories and Options .................................................3
Supplied Accessories ............................................................. 3
Available Options ................................................................... 3
Safety Precautions ............................................................4
Controls & Connectors (Top / Front Panel) .....................7
Controls & Connectors (Left / Right Side) ......................8
Controls & Connectors (LCD) ..........................................9
Before You Begin .............................................................10
Antenna Installation.............................................................. 10
Installing the Battery Pack.................................................... 10
Removing the Battery Pack.................................................. 10
Battery Charging .................................................................. 10
Low Battery Indication ...........................................................11
External DC Power Supply Connection ............................... 12
Belt Clip Installation.............................................................. 12
Headset Connection............................................................. 13
Precautions .......................................................................... 13
Basic Operation ...............................................................14
Turning the power on and off ............................................... 14
Adjusting the squelch ........................................................... 14
Monitor Switch...................................................................... 15
Adjusting the frequency........................................................ 15
Accessing the 121.5 MHz Emergency Frequency ............... 16
Transmission ........................................................................ 16
Resetting the Transceiver .................................................... 16
Operation Modes.................................................................. 17
BASIC OPERATION OF THE MENU MODE ....................... 18
Advanced Operation .......................................................19
Pitch Control......................................................................... 19
Flip-Flop Feature (Frequency Recall) .................................. 19
Reception of Weather Channel Broadcasts ......................... 20
Weather alert reception ........................................................ 20
Dual Watch Operation .......................................................... 21
Setting the P-ch.................................................................... 21
Starting the dual watch......................................................... 21
Noise Cancellation ............................................................... 22
TOT Feature ......................................................................... 22
Battery Saver during Reception ........................................... 23
Using the Headset Microphone ............................................ 23
VOX Operation ..................................................................... 24
Side Tone Control ................................................................. 25
Lock Function ....................................................................... 25
PTT Lock Function ............................................................... 26
ANL Feature ......................................................................... 26
Changing the Channel Steps ............................................... 27
Function Modes.................................................................... 28
Memory Operation ........................................................... 29
Recalling the Memories........................................................ 29
Instant Storage ..................................................................... 30
Maintenance of the Memory................................................. 30
Scanning Operation ........................................................32
Scanning Channels .............................................................. 32
Scanning the Specied Channels ........................................ 33
SETUP Mode ....................................................................34
Basic Operation.................................................................... 34
Maintenance of the Memory................................................. 35
Setting of the COMM SETUP Mode Operation .................... 35
PRIORITY CH ...................................................................... 37
Setting of the Operation and ................................................ 37
 Conguration of the Transceiver ......................................... 37
About the Transceiver .......................................................... 38
Summary of the SETUP Menu ............................................. 39
Specications ..................................................................41
Troubleshooting For Headset Connection .................... 42

FTA-250L OperATing MAnuAL 1
Important notICe!
FCC RF Exposure Compliance Requirements for Occupational Use Only:
The FTA-250L has been tested and complies with the Federal Communications Commission (FCC) RF exposure limits 
for Occupational Use/Controlled Exposure Environment. In addition, the radio complies with the following Standards 
and Guidelines:
  FCC 96-326, Guidelines for Evaluating the Environmental Effects of Radio-Frequency Radiation.
  FCC OET Bulletin 65 Edition 97-01 (1997) Supplement C, Evaluating Compliance with FCC Guidelines for Human 
Exposure to Radio Frequency Electromagnetic Fields.
  ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency 
Electromagnetic Fields, 3 kHz to 300 GHz.
  ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromag-
netic Fields - RF and Microwave.
  This radio is NOT approved for use by the general population in an uncontrolled environment. This radio is 
restricted to occupational use, work related operations only where the radio operator must have the knowl-
edge to control its RF exposure conditions.
  When transmitting, hold the radio in a vertical position with its microphone 1 to 2 inches (2.5 to 5 cm) away 
from your mouth and keep the antenna at least 1 inch (2.5 cm) away from your head and body.
  The radio must be used with a maximum operating duty cycle not exceeding 50%, in typical Push-to-Talk 
congurations. DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmitting 
more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded.
  The radio is transmitting when the “” icon is displayed on the upper left corner of the screen of the ra-
dio. You can cause the radio to transmit by pressing the PTT button.
  Always use YAESU authorized accessories.
NOTICE
There are no user-serviceable points inside this transceiver.
All service jobs must be referred to your Authorized Service Center.

FTA-250L OperATing MAnuAL2
IntroduCtIon
The YAESU FTA-250L is ultra compact, stylish, solid hand-held transceivers providing communication (transmit 
and receive) capability on the International Aircraft Communication Band (“COM” band: 118 to 136.975 MHz).
The FTA-250L includes NOAA weather band monitoring and 250 memory channels. The channel congurations 
can be easily reprogrammed in minutes using the optional PC Programming Software and your PC.
We recommend that you read this manual in its entirety, so as to understand the many features of the FTA-250L 
completely. Keep this manual handy, so you may use it for reference.
Congratulations!
You now have at your ngertips a valuable communications tool, a YAESU two-way radio! Rugged, reliable 
and easy to use, your YAESU radio will keep you in constant touch with your friends and colleagues for 
years to come, with negligible maintenance or down-time.
Please take a few minutes to read this manual carefully. The information presented here will allow you to 
derive maximum performance from your radio, in case questions arise later on.
We’re glad you joined the YAESU team. YAESU products cover the entire spectrum of radio communica-
tions applications, and our worldwide support network is here to serve you. Let us help you get your mes-
sage across.

FTA-250L OperATing MAnuAL 3
aCCessorIes and optIons
Supplied Accessories
Lithium-ion Battery Pack  SBR-25LI
AC Adapter  SAD-20
Charger Cradle  SBH-22
Cigarette Lighter DC/DC Converter  SDD-12
Helical Antenna  SRA-18A*
   or
 YHA-73
Headset Adapter Cable  SCU-15
Belt Clip  SHB-18
Ferrite Core  L9190192
Operating Manual
Warranty Card
*  Antenna gain: 2.15 dBi
  Impedance: 50 ohms
Available Options
Speaker Microphone  SSM-10A
Earphone (available only with the SSM-10A) 
SEP-10A
Earphone  SEP-11A
Li-Ion Battery Pack (7.4 V, 1,950 mAh)  SBR-25LI
Li-Ion Battery Pack (7.4 V, 2,500 mAh)  SBR-26LI
AC Adapter  SAD-20
Charger Cradle  SBH-22
Cigarette Lighter DC/DC Converter  SDD-12
Helical Antenna  SRA-18A
Belt Clip  SHB-18
Headset Adapter Cable  SCU-15
USB Programming and Control Cable  USB-57B
Availability of accessories may vary. Some accesso-
ries are supplied as standard per local requirements, 
while others may be unavailable in some regions. 
Consult your YAESU Dealer for details regarding 
these and any newly-available options.
Connection of any non-YAESU-approved accessory, 
should it cause damage, may void the Limited War-
ranty for the FTA-250L.

FTA-250L OperATing MAnuAL4
safety preCautIons
Be sure to read the safety precautions to use this product safely.
Yaesu is not liable for failures and other problems caused due to misuse or use of this product by you or a third 
party. Also, Yaesu is not liable for damages caused through use of this product by you or a third party except in 
the case where ordered to pay for damages under the laws.
Type and meaning of the marks
DANGER Indicates an imminently hazardous situation 
which, if not avoided, could result in death 
or serious injury.
WARNING Indicates a potentially hazardous situation 
which, if not avoided, could result in death 
or serious injury.
CAUTION Indicates a potentially hazardous situation 
which, if not avoided, may result in minor or 
moderate injury or only property damage.
Type and meaning of symbols
Indicates a prohibited action, not to be done in order to use 
this product safely. For example,   indicates that the prod-
uct should not be disassembled.
Indicates a required action, to be done in order to use this 
product safely. For example,   indicates that the power 
plug should be re-moved.
 DANGER
Do not use this product in “an area where use of it is 
prohibited”, e.g., inside the hospital or train.”
This product can affect electronic or medical devices.
Do not use this product while riding a bicycle or driving 
a car. Accidents can result.
Be sure to stop the bicycle or car at a safe place before us-
ing this product.
Do not perform transmission in a crowded place for the 
safety of persons using a medical device such as a car-
diac pacemaker.
The radio wave emitted from this product can cause the 
medical device to malfunction and result in an accident.
Do not touch any material leaking from the battery pack 
with bare hands.
The chemical that has stuck to your skin or entered your 
eye can cause chemical burns. In such a case, consult the 
doctor immediately.
Those who are carrying a medical device such as a car-
diac pacemaker should not perform transmission near 
the device. When transmitting, use an external antenna 
and keep as far as possible away from the external an-
tenna.
The radio wave emitted by the transmitter can cause the 
medical device to malfunction and result in an accident.
Do not use this product or the battery charger in a place 
where inammable gas is generated.
A re or explosion can occur.
Do not solder or short-circuit the terminal of the battery 
pack.
A re, leak, overheating, explosion, or ignition can result. Do 
not carry the battery pack together with a necklace, hair pin, 
or small metal objects. A short circuit can result.
 WARNING
Do not power this transceiver with a voltage other than 
the specied power supply voltage.
A re, electric shock, or damage may result.

FTA-250L OperATing MAnuAL 55
safety preCautIons
Do not use the battery pack for any model other than 
the specied transceiver.
A re, leak, overheating, explosion, or ignition can result.
Do not make very long transmissions.
The main body of the transceiver may overheat, resulting in 
a failure or burns.
Do not disassemble or make any alteration to this prod-
uct.
An injury, electric shock, or failure can result.
Keep the terminals of the battery pack clean.
If terminal contacts are dirty or corroded,  a re, leak, over-
heating, explosion, or ignition can result.
Do not handle the battery pack or charger with wet 
hands. Do not insert or remove the power plug with wet 
hands.
An injury, leak, re, or failure can result.
If smoke or strange odor is emitted from the main body, 
battery pack, or battery charger, immediately turn the 
transceiver off; remove the battery pack, and remove 
the power plug from the outlet.
A fire, leak, overheating, damage, ignition, or failure can 
result. Contact the dealer from which you purchased this 
product or Yaesu Customer Support.
Do not use the battery pack which is externally dam-
aged or deformed.
A re, leak, heating, explosion, or ignition can result.
Do  not  use any  battery  charger  which  is  not  specied 
by Yaesu.
A re or failure can result.
When transmitting, keep the transceiver at least 5.0 mm 
(3/16 inch) away from your body. Use only the supplied an-
tenna. Do not use modied or damaged antennas.
If charging of the battery pack cannot be completed 
within the specied charging time, immediately remove 
the power plug of the battery charger from the outlet.
A re, leak, overheating, explosion, or ignition can result.
 CAUTION
Do not dangle or throw this product by holding its an-
tenna.
This product can hit and injure someone. In addition, doing 
so can result in a transceiver failure or damage.
Do not use transceiver in a crowded place.
The antenna can hit someone, resulting in an injury.
Do not place this transceiver in a place subject to direct 
sun-light or near a heater.
The transceiver can deform or discolor.
Do not place this transceiver in a humid or dusty place.
A re or failure can result.
During transmission, keep the antenna as far from you 
as possible.
Long-time exposure to electromagnetic waves can have a 
negative impact on your health.
Do not clean the case with thinner or benzene.
Use a soft, dry cloth to clean the case.
If the transceiver is not being used for an extended period, 
turn it off and remove the battery pack for safety.
Do not drop, strike, or throw the transceiver.
A failure or damage may result.
Keep magnetic cards and video tape away from the 
transceiver.
The data recorded on cash cards or video tape can be 
erased.
Charge the battery pack within the temperature range 
from +5 °C to +35 °C (+41 °F to +95 °F).
Charging the battery pack outside this temperature range 
can cause leak, overheating, decrease in performance, or 
reduction in service life can result.

FTA-250L OperATing MAnuAL66
safety preCautIons
When unplugging the power cord of the battery charger, 
be sure to hold the power plug.
Pulling the  power  cord can  dam-age  it and  cause  a re  or 
electronic shock.
Do not use the earphones or head-phones at an ex-
tremely high volume level.
Hearing impairment can result.
Keep this product out of reach of children.
An injury, etc. can result.
Install the belt clip securely.
If they are installed improperly, the FTA-250L may fall or 
drop, resulting in an injury or damage.
Do not place a heavy object on the power cord of the 
battery charger.
The battery cord can be dam-aged, resulting in a fire or 
electric shock.
Do not use the included battery charger to charge any 
battery pack which is not specified for use with the 
charger.
A re can result.
Do not operate the transmitter near the TV or radio.
Radio disturbance can occur in the transceiver, the TV, or 
the radio.
Do  not  use  any  products  other  than  the  specied  op-
tions and accessories.
A failure can result.
When the battery charger is not in use, remove its pow-
er plug from the outlet.
Before  discarding  the  worn  battery  pack,  afx  tape  or 
the like to its terminals.
Before using this transceiver in a hybrid or fuel-saving car, 
be sure to check with the auto-mobile manufacturer regard-
ing use of the transceiver in that car.
Noise generated by an onboard electrical device (inverter, 
etc.) can disrupt the normal operation of the transceiver.

FTA-250L OperATing MAnuAL 7
  
À Antenna Jack
This BNC connector accepts the supplied exible an-
tenna or another antenna designed to provide a 
50-
Ohm impedance on the Aircraft Communication Band.
Á 121.5 Key
  Press and hold this key to access the emergency 
frequency (121.5 MHz) instantly.
 PWR/VOL Knob
  Turn this control clockwise to turn the transceiver 
ON and to increase the volume. Counter-clock-
wise rotation to reduce the volume and turn the 
transceiver OFF.
à Loudspeaker
  The internal speaker is located here.
Ä Microphone
  To transmit, speak into the mic opening into this 
opening in a normal voice level, while pressing 
the PTT switch.
Å LED Flash-Light
Æ LCD (Liquid Crystal Display)
  The display shows current operating condition.
Ç Keypad
  These 18 keys select the important operating 
functions of the FTA-250L.
Controls & ConneCtors (top / front panel)

FTA-250L OperATing MAnuAL8
À PTT (Push To Talk) Switch
  Press this switch to transmit, and release it to re-
ceive after your transmission is completed.
Á SQL (Squelch) key
  This key may be pressed to adjust the squelch 
level. Press this key for 1 second to “open” the 
squelch continuously. Press this button again to 
resume normal (quiet) monitoring.
 LOCK key
  Press and hold this key to lock the keypad. To un-
lock, repeat this process.
à MIC/SP Jack
  You may connect the supplied SCU-15 Headset 
Adapter Cable or the optional SSM-10A Speaker/
Microphone to this jack. To use this jack, you must 
rst remove the cover from the transceiver body.
Do not allow the FTA-250L to get wet 
while the MIC/SP cover has been re-
moved.
Ä EXT/DC Jack
  When an external 9.0 to 10.5-Volt DC power 
source is available, you may connect the SDD-12 
Cigarette Lighter DC/DC Converter here.
1) Do not allow the FTA-250L to get wet 
while the rubber cover is removed.
2) Do not connect any accessory unapproved 
by YAESU to supply DC power.
Controls & ConneCtors (left / rIght sIde)

FTA-250L OperATing MAnuAL 9
Controls & ConneCtors (lCd)
“” icon appears during 
audio reception, or “ ” 
during transmission. 
ANL Feature Active
Dual Watch Feature ActiveVOX Feature Active
Noise Canceling Feature Active
Battery Indicator
Operating FrequencyStored Frequency Recall Number
Memory Group
Frequency Memory Name
“” icon appears if the selected channel is 
programmed into the Scan Memory.

FTA-250L OperATing MAnuAL10
Removing the Battery Pack
1.  Turn the transceiver OFF. 
2.  While sliding the latch in 
the direction of the arrow, 
as shown in the illustration.
3.  Pull out the battery pack 
from the transceiver.
Battery Charging
It is necessary to charge the Lithium-ion battery fully 
before its rst use. Follow the procedure below:
1.  Install the Lithium-ion battery pack onto the trans-
ceiver. Ensure that the transceiver is switched off.
2.  Insert the cable plug of the SAD-20 AC Adapter 
into the DC IN jack located on the back of the 
SBH-22 Charger Cradle, then plug the SAD-20 
into the AC line outlet.
3.  Insert the transceiver into the SBH-22 Charger 
Cradle.
  If the transceiver is inserted correctly, the RED 
indicator on the SBH-22 will glow.
 You may insert the cable plug of the SDD-
12 Cigarette Lighter DC/DC Converter into 
the  EXT/DC jack located on the right side 
of the transceiver. In this case, the “ ” 
icon will appear in the top right corner of the 
LCD display for trickle charging.
Before you BegIn
Antenna Installation
To attach the supplied an-
tenna to the FTA-250L, grasp 
the base of the antenna 
rmly,  and  exert a  moderate 
“pinching” pressure on the 
base as you press the an-
tenna onto the transceiver’s 
antenna connector. While 
exerting this pressure, rotate 
the antenna clockwise 1/4 
turn to lock the antenna in 
place.
Installing the Battery Pack
1.  Insert the battery pack into the battery compart-
ment on the back of the transceiver (À).
2.  Push the battery in until the battery latch on the 
lower back side of the transceiver clicks securely 
(Á).

FTA-250L OperATing MAnuAL 1111
Before you BegIn
AC line outlet
SAD-20
SBH-22
DC IN jack
 A fully-discharged SBR-25LI Battery Pack will 
be charged completely in about 3.5 hours (de-
pending on the battery being charged), and 
then the GREEN indicator on the SBH-22 will 
glow letting you know the battery has been fully 
charged. 
 The SAD-20 is not designed to power the 
transceiver for operation (reception or trans-
mission).
4.  When charging is complete, disconnect the SAD-
20 from the DC IN jack and the AC line outlet.
Low Battery Indication
As the battery discharges during use, the voltage will 
gradually become lower.
When the battery voltage is 
too low for reliable operation, 
the “ ” icon will blink on the 
LCD display, indicating that 
the battery pack must be re-
charged before further use.
Icons Description
Full battery power
Enough battery power
Low battery power
Poor battery power
 (w/blink) Charge (or replace) the battery
 Avoid recharging Li-Ion batteries before the “ ”  
indicator is observed, as this can degrade the 
charge capacity of your Li-Ion battery pack.
  The fully-charged battery lasts for 16 hours on the 
FTA-250L under the conditions below:
  Battery saver  :ON
  Operation  ratio :TX:RX:Standby=5:5:90  (
duty cycle
)

FTA-250L OperATing MAnuAL1212
Before you BegIn
External DC Power Supply Connection
You may insert the cable plug of the SDD-12 Ciga-
rette Lighter DC/DC Converter into the EXT DC jack 
located on the right side of the transceiver.
In this case, the “ ” icon will appear in the top right 
corner of the LCD display.
When making DC connections via the SDD-12, be 
absolutely certain to observe the proper voltage level 
and polarity guidelines. 
 The SDD-12 can be connected to 12 to 24 Volt DC 
power sources.
As close
 as possible Ferrite Core
Wind the cable one turn, 
then snap two halves.
SDD-12
Cigarette Lighter DC/DC 
Converter (12 to 24 Volts).
 For noise reduction from exogenous noise, wind 
one turn of the SDD-12 cable around the ferrite 
core, and snap its two halves together, per the il-
lustration above. Attach the ferrite core as close as 
possible to the SDD-12 body, as shown.
Do not connect any accessory unap-
proved by YAESU to supply DC power; 
otherwise the FTA-250L may be damaged.
Belt Clip Installation
You may mount the belt clip to the rear of the FTA-
250L using the supplied screws.

FTA-250L OperATing MAnuAL 1313
Before you BegIn
Headset Connection
You may connect an optional headset using the sup-
plied SCU-15 Headset Adapter Cable.
Headset
(not supplied)
SCU-15
Headset Adapter Cable
1.  Remove the two screws and cover of the MIC/SP 
jack located on the right side of the transceiver.
2.  Insert the plug of the SCU-15 to the MIC/SP jack.
3.  Fix the plug with two screws attached to the SCU-
15.
  Either of the plug directions are acceptable as 
long as the both screws t the screw holes.
4.  Insert the plugs of the headset to the sockets of 
the SCU-15.
Precautions
 The FTA-250L is capable of two-way communica-
tion on channels used for critical aviation safety 
communications. Therefore, it is important that this 
transceiver be kept away from children or other 
unauthorized users at all times.
  Do not dispose of the Lithium-ion battery pack in a 
re. Do not carry a Lithium-ion battery pack in your 
pocket, where keys or coins could short the termi-
nals. This could create a serious re/burn danger, 
and possibly cause damage to the Lithium-ion 
pack.
 The FTA-250L is designed to have the waterproof 
capability equivalent to IP54. Do not allow the 
transceiver to become submerged, and do not 
subject it to water spray under pressure.

FTA-250L OperATing MAnuAL14
Turning the power on and off
1.  Rotate the PWR/VOL knob 
out of the click-stop to turn 
the transceiver ON.
2.  To turn the transceiver 
OFF, turn the PWR/VOL 
knob fully counter-clock-
wise into the click-stop po-
sition.
  The “ ” icon appears on the display when the 
audio signal is received on the current frequency.
Adjusting the volume
1.  Rotate the PWR/VOL knob 
to adjust the receiver vol-
ume.
Adjusting the squelch
1.  Press the SQL key, then 
press  the  [◄]  or  [►]  key 
to adjust to a squelch 
level (OFF to 15) at which 
the background noise is 
muted.
2.  Press the SQL key to 
save the squelch setting 
and return to normal op-
eration.
BasIC operatIon

FTA-250L OperATing MAnuAL 1515
BasIC operatIon
Monitor Switch
When listening to a very weak signal from an aircraft 
or ground station, you may observe the signal disap-
pearing periodically as the incoming signal strength 
becomes too weak to override the squelch threshold 
setting.
To disable the squelch temporarily;
1.  press and hold the SQL 
key for 1 second.
  The squelch will remain 
open and you should have 
a better chance of hearing 
weak signals.
2.  To return to normal opera-
tion, press the SQL key 
momentarily.
Adjusting the frequency
  Pressing  the  [►]  tunes 
the  FTA-250L toward 
a higher frequency, 
while  pressing  the  [◄] 
will lower the operating 
frequency, in steps pre-
programmed for the cur-
rent operating band.
 Directly entering fre-
quencies from the 
keypad is the easiest 
method if you know the 
frequency on which you 
wish to operate. Just 
enter the five digits of 
the frequency to move to 
that frequency.
  For example, to set 134.35 MHz,
 press 
[1] à [3] à [4] à [3] à [5].
  To set 118.275 MHz, you do not need to press the 
nal “5” in the frequency as below:
 [1] à [1] à [8] à [2] à [7].

FTA-250L OperATing MAnuAL1616
BasIC operatIon
Accessing the 121.5 MHz Emergency Frequency
The FTA-250L can quickly access the 121.500 MHz 
emergency frequency. This function can be activated 
even when the keypad lock function (described on 
page 25) is in use.
1.  Press and hold the [121.5] 
key.
  After four beeps, the 
transceiver enters the 
emergency mode and the 
frequency is automatically 
tuned to 121.500 MHz.
2.  To exit the emergency 
mode, press the [CLR] 
key.
 The message confirm-
ing the cancelation of the 
emergency mode will ap-
pear.
3.  Press the [◄] key to se-
lect “YES”, then press the 
[ENT] key.
Transmission
1.  Press and hold the PTT 
switch.
  The “ ” icon will ap-
pear on the display during 
transmission.
2.  Speak into the microphone 
area on the front panel of 
the radio in a normal voice 
level.
3.  To return to the receive 
mode, release the PTT 
switch.
Resetting the Transceiver
To clear all memories and other settings to factory de-
faults:
1.  Turn the transceiver OFF.
2.  Press and hold the [CLR] 
key and [ENT] key while 
turning the transceiver 
ON.
3.  When the LCD backlight 
comes on, release the 
[CLR] key and [ENT] 
key, to reset all settings 
to their factory defaults.

FTA-250L OperATing MAnuAL 1717
BasIC operatIon
Operation Modes
The  FTA-250L operate in 
the modes listed below. You 
can switch the modes via 
the MENU screen displayed 
by pressing the [MENU] key 
on the front panel.
When turning on the FTA-250L, the last mode you 
have used before turning off will automatically be en-
tered.
COMM
The basic operating mode for communi-
cation.
MEMORY
This mode provides you with the ability to 
store and recall as many as 250 channels 
in the transceiver’s main memory bank.
WX CH
(WEATHER)  (USA/Canada Only)
This mode allows you to receive NOAA 
weather channel broadcasts. The 10 
weather channels are pre-programmed at 
the factory.
SETUP
This mode allows certain aspects of your 
radio’s conguration to be customized for 
your personal operating conditions.

FTA-250L OperATing MAnuAL1818
BasIC operatIon
BASIC OPERATION OF THE MENU MODE
Using the menu mode, the various functions of the 
FTA-250L can be customized to match the method of 
use. You can select the items that you would like to 
adjust from the respective lists and enter or select the 
appropriate settings for the intended various opera-
tion.
1. 
Press the 
[MENU] key
.
2. Select 
“SETUP” by press-
ing the [◄] or [►] key.
3.  Press the [ENT] key.
4.  Select the desired menu 
item by pressing the [▲] 
or [▼] key, and then press 
the [ENT] key.
5.  Select the desired item by 
pressing the [▲] or [▼] 
key, and then press the 
[ENT] key.
6. 
Select 
the desired setting 
by pressing the [◄] or [►] 
key.
7.  Press the [ENT] key to store the selected setting.
8.  Press the PTT switch to return to normal opera-
tion.
The same operation process as the above is writ-
ten as follows in this operation manual.
[MENU] à “SETUP” à “CONFIG” à “KEY BEEP”

FTA-250L OperATing MAnuAL 19
Pitch Control
The FTA-250L includes a feature that lets you choose 
four specific receiver audio responses to allow the 
most comfortable and/or effective reception in noisy 
environments. The effect is similar to that provided by 
an “Equalizer” in a stereo.
1.  [MENU] à “SETUP” à “COM SETUP” à “AF 
PITCH CONT”
.
2. 
Select the receiver audio 
response 
by pressing the 
[◄] or [►] key, and then 
press the [ENT] key.
The setting changes in the following order.
NORMAL:  The received audio signal does not 
pass through the equalizer circuit.
LO CUT:  The received audio is passed without 
roll-off on the low end.
HI CUT:  The received audio is passed without 
roll-off on the high end.
HI & LO CUT: The received audio is passed without 
roll-off on the high and low ends.
Tip: The default setting: NORMAL
3.  Press the PTT switch to return to normal opera-
tion.
Flip-Flop Feature (Frequency Recall)
The  FTA-250L can memorize up to 9 operating fre-
quencies automatically, and recall them for later use.
Up to 9 frequencies may be memorized. Once all 9 
memories have been programmed, previous frequen-
cies will be over-written, on a rst-in, rst-out basis.
Recall Frequency
1.  Press the [▲] key.
 You will see the previ-
ously selected recall 
number appearing on 
the LCD.
2.  Press the [▲] or [▼] key to select previously 
stored frequencies.
1 
à
à 2 
à
à 3 
à 
..... à 7 
à
à 8 
à
à 9
advanCed operatIon

FTA-250L OperATing MAnuAL2020
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Weather alert reception
In the event of extreme weather disturbances, such 
as storms and hurricanes, the NOAA (National Oce-
anic and Atmospheric Administration) sends a weath-
er alert accompanied by a 1050 Hz tone and subse-
quent weather report on one of the NOAA weather 
channels.
When the transceiver receives 
the weather alert on the op-
erating frequency, it displays 
a warning as below on the 
screen and continues to make 
alarm sounds until either of 
the keys is pressed.
You may enable or disable the alarm function when 
receiving the weather alert signal via the COMM SET-
UP menu. See page 35 for details.
Reception of Weather Channel Broadcasts
- Weather Channels for USA/ Canada only -
The  FTA-250L can receive VHF weather channel 
broadcasts, which may assist your flight planning. 
The  FTA-250L includes a special bank capable of 
storing 10 weather channels, which simplies access 
when you are in an unfamiliar location.
1. 
Press the 
[MENU] key
.
2. 
Select 
“WX CH” by press-
ing the [◄] or [►] key, and 
then press the [ENT] key.
  The last channel you have 
tuned will be received.
3.  You can also select a weather channel from the 
pre-programmed list with the [▲] or [▼] key.
4.  To exit the WX mode, press the [MENU] key, se-
lect the mode other than “WX CH” by pressing the 
[◄] or [►] key, and then press the [ENT] key.

FTA-250L OperATing MAnuAL 2121
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Dual Watch Operation
The dual watch feature automatically checks for ac-
tivity on the P-ch (priority channel) set via the PRI-
ORITY-CH menu while you are operating on another 
channel. During the dual watch operation, the current 
channel and the P-ch will be polled alternately for a 
200 ms interval.
Setting the P-ch
1.  [MENU] à “SETUP” à “PRIORITY CH”
.
2. 
Enter the frequency you want to poll, with the key-
pad
.
3. 
Select 
“FINISH” by press-
ing the [◄] or [►] key, and 
then press the [ENT] key.
4.  Press the PTT switch to return to normal opera-
tion.
Starting the dual watch
1. 
Press the 
[FUNC] key
.
2.  Select “DUAL WATCH” 
by pressing the [◄] or [►] 
key, and then press the 
[ENT] key.
 The display will return to 
the previous screen and 
the “DW” icon will be dis-
played, indicating the FTA-
250L is in dual watch.
 When the transceiver encounters a signal on the 
current channel, the radio polls both channels al-
ternately with longer staying time on the current 
channel.
 When the transceiver encounters a signal in the 
P-ch, the transceiver stays on the P-ch until the 
signal disappears, and the frequency indication on 
the display blinks.
  After the signal disappears, the dual watch re-
sumes.
3.  To stop the dual watch, repeat steps 1 and 2 
above.

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Noise Cancellation
To cancel background noise when transmitting and 
receiving.
Enables/disables the Noise-canceling function of the 
transmitter and receiver independently.
1.  [MENU] à “SETUP” à “COMM SETUP” à  
“NOISE CANCEL”
.
2. 
Select 
“TX MODE” b y 
pressing the [◄] or [►] 
key, and then press the 
[ENT] key.
3.  Press the [◄] or [►] key to select “ON” or “OFF”, 
and then press the [ENT] key.
4. 
Select 
“RX MODE” by pressing the [◄] or [►] key, 
and then press the [ENT] key.
5.  Select the noise level from “LV 1” through “MAX” 
or “OFF” by pressing the [◄] or [►] key, and then 
press the [ENT] key.
6.  Press the PTT switch to return to normal opera-
tion.
TOT Feature
The TOT (time-out timer) shuts off the transceiver af-
ter continuous transmission exceeds the programmed 
time. This feature prevents unintended transmission 
by mistake and reduces battery consumption.
1.  [MENU] à “SETUP” à “COMM SETUP” à  
“TX TOT”
.
2. 
Select the desired TOT 
time 
by pressing the [◄] 
or [►] key, and then press 
the [ENT] key.
The setting changes in the following order.
1 
à
à 2 
à
à 3 
à
à 4 
à
à 5 (MIN)
Tip: The default setting: 5 MIN
3.  Press the PTT switch to return to normal opera-
tion.

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Battery Saver during Reception
One of the important features of the FTA-250L is its 
battery saver, which “puts the transceiver to sleep” 
for a time interval, periodically “waking it up” to check 
for activity. If somebody is talking on the channel, 
the FTA-250L will remain in the “awake” mode, then 
resume its “sleep” cycles. This feature significantly 
reduces battery drain.
1.  [MENU] à “SETUP” à “CONFIG” à “BATTERY 
SAVE”
.
2. 
Select the desired interval 
time 
by pressing the [◄] 
or [►] key, and then press 
the [ENT] key.
OFF  : Disables this function.
50 %  : Sleeps for 100 ms after 100 ms awake
70 %  : Sleeps for 250 ms after 100 ms awake
80 %  : Sleeps for 450 ms after 100 ms awake
90 %  : Sleeps for 900 ms after 100 ms awake
Tip: The default setting: 50 %
3.  Press the PTT switch to return to normal opera-
tion.
Using the Headset Microphone
If you want to use the microphone of an aviation 
headset, change the assignment of microphone con-
trolled with the PTT switch.
1.  [MENU] à “SETUP” à “COMM SETUP” à  
“MIC SELECT”
.
2. 
Select 
“EXTERNAL”
by 
pressing the [◄] or [►] 
key, and then press the 
[ENT] key.
3.  Press the PTT switch to return to normal opera-
tion.
When an optional aviation headset is connected, the 
PTT switch on the transceiver will activate the head-
set microphone for transmission.
Note: If  you  nd  it  difcult  to  use  the  PTT switch of 
the transceiver, we recommend to use an after-
market external PTT switch.

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VOX Operation
If you want to have both hands free, use a headset 
and activate the VOX (voice-actuated transmit/receive 
switching) system.
Notes:  The VOX system does not work when us-
ing just the internal microphone; an exter-
nal headset must be used.
 Do not activate the VOX system when con-
necting the optional microphone SSM-10A.
1.  [MENU] à “SETUP” à “COMM SETUP” à  
“VOX”
.
2. 
Select
 “ON” or “OFF” by 
pressing the [◄] or [►] 
key, and then press the 
[ENT] key.
3.  Press the PTT switch to 
return to normal operation.
 The “V” icon, which indi-
cates that the VOX system 
is active.
  To adjust the VOX gain, select one of the follow-
ing gain levels on the item “VOX LEVEL” of the 
COMM SETUP menu in the SETUP mode.
MIN / LV1 / LV2 / LV3 / MAX
  To set the VOX delay, select one of the following 
times on the item “VOX DELAY” of the COMM 
SETUP menu in the SETUP mode.
0.5 / 1.0 / 1.5 / 2.0 / 3.0 (SEC)

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Side Tone Control
When utilizing an external headset, you may moni-
tor your own voice when talking into the microphone 
through the headphones.
Note: Do not activate the side tone function when 
connecting the optional microphone SSM-10A.
1.  [MENU] à “SETUP” à “COMM SETUP” à  
“SIDE TONE”
.
2. 
Select
 the side tone level 
by pressing the [◄] or [►] 
key, and then press the 
[ENT] key.
The setting changes in the following order.
OFF / LV 1 / LV 2 / LV 3 / MAX
3.  Press the PTT switch to return to normal opera-
tion.
 To change the side tone level temporarily during 
the monitoring, pressing the [▲], [▼],  [◄] or [►] 
key when pressing and holding the PTT switch.
Lock Function
This function prevents accidental changes to the fre-
quency setting and the keypad controls.
1.  Press and hold the LOCK 
key.
 While the FTA-250L 
is locked, the controls 
with the keys except 
the  PTT switch, SQL 
key,  LOCK key, the 
PWR/VOL knob, and 
the [121.5] key are dis-
abled.
 If any of the keys is 
pressed, either of “KEY 
LOCK” will appear 
on the screen for 2 
seconds and then the 
display will return to the 
previous screen.
2.  To turn the lock feature off, press and hold the 
LOCK key again.
 “UNLOCK” will appear on the screen for 2 sec-
onds and then the display will return to the previ-
ous screen.

FTA-250L OperATing MAnuAL2626
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PTT Lock Function
This function prevents accidental transmissions by 
locking or disabling the PTT switch.
Turning lock/unlock the PTT lock function
You may enable or disable the PTT lock function.
1.  [MENU] à “SETUP” à “CONFIG” à “PTT LOCK”
.
2.  Select “ON” or “OFF” by 
pressing the [▲] or [▼] 
key, and then press the 
[ENT] key.
3.  Press the PTT switch to return to normal opera-
tion.
ANL Feature
For reduction of impulse noise, such as that produced 
by an engine’s ignition system, the ANL (automatic 
noise limiter) feature may prove helpful.
1.  [MENU] à “SETUP” à “COMM SETUP” à “ANL”
.
2.  Select “ON” or “OFF” by 
pressing the [▲] or [▼] 
key, and then press the 
[ENT] key.
3.  Press the PTT switch to 
return to normal operation.
 The “ANL” icon, which 
indicates that the ANL sys-
tem is active.

FTA-250L OperATing MAnuAL 2727
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Changing the Channel Steps
The synthesizer of the FTA-250L provides the option 
of utilizing 8.33*/25 kHz channel steps.
* 8.33 kHz; Europe only
1.  [MENU] à “SETUP” à “COMM SETUP” à “FREQ 
STEP”
.
2. Select “25KHZ”  o r 
“8.33KHZ” by pressing the 
[▲] or [▼] key, and then 
press the [ENT] key.
3.  Press the PTT switch to return to normal opera-
tion.
Note: When you set the channel step to 8.33 kHz, 
the channel display differs from actual operat-
ing frequency; see the chart below. However, 
the operator (pilot, tower, control, etc.) will call 
out the frequency according to what the display 
indicates.
Operating 
Frequency
Display
8.33 kHz Step 25 kHz Step
1**.0000 MHz 1**.005 1**.000
1**.0083 MHz 1**.010
1**.0166 MHz 1**.015
1**.0250 MHz 1**.030 1**.025
1**.0333 MHz 1**.035
1**.0416 MHz 1**.040
1**.0500 MHz 1**.055 1**.050
1**.0583 MHz 1**.060
1**.0666 MHz 1**.065
1**.0750 MHz 1**.080 1**.075
1**.0833 MHz 1**.085
1**.0916 MHz 1**.090
 The adjacent channel selectivity will be slightly 
degraded while receiving using 8.33 kHz channel 
steps.