Yaesu Musen 50023X20 AIR BAND HT RADIO User Manual 1

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AIR BAND TRANSCEIVER
FTA-250L
Operating Manual
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 Specified 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
Configuration of the Transceiver.......................................... 37
About the Transceiver........................................................... 38
Summary of the SETUP Menu.............................................. 39
Specifications...................................................................41
Troubleshooting For Headset Connection.....................42
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 Electromagnetic 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 knowledge 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
configurations. 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.
” icon is displayed on the upper left corner of the screen of the raThe radio is transmitting when the “
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 Manual
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 configurations
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 fingertips 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 communications applications, and our worldwide support network is here to serve you. Let us help you get your message across.
FTA-250L Operating Manual
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
Earphone (available only with the SSM-10A)
Earphone
Li-Ion Battery Pack (7.4 V, 1,950 mAh)
Li-Ion Battery Pack (7.4 V, 2,500 mAh)
AC Adapter
Charger Cradle
Cigarette Lighter DC/DC Converter
Helical Antenna
Belt Clip
Headset Adapter Cable
USB Programming and Control Cable
SSM-10A
SEP-10A
SEP-11A
SBR-25LI
SBR-26LI
SAD-20
SBH-22
SDD-12
SRA-18A
SHB-18
SCU-15
USB-57B
Availability of accessories may vary. Some accessories 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 Warranty for the FTA-250L.
FTA-250L Operating Manual
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
WARNING
CAUTION
Indicates an imminently hazardous situation
which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
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 product 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 using this product.
Do not perform transmission in a crowded place for the
safety of persons using a medical device such as a cardiac 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 cardiac pacemaker should not perform transmission near
the device. When transmitting, use an external antenna
and keep as far as possible away from the external antenna.
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 inflammable gas is generated.
A fire or explosion can occur.
Do not solder or short-circuit the terminal of the battery
pack.
A fire, 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 specified power supply voltage.
A fire, electric shock, or damage may result.
FTA-250L Operating Manual
Safety Precautions
Do not use the battery pack for any model other than
the specified transceiver.
A fire, 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 product.
An injury, electric shock, or failure can result.
Keep the terminals of the battery pack clean.
If terminal contacts are dirty or corroded, a fire, leak, overheating, 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, fire, 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 damaged or deformed.
A fire, leak, heating, explosion, or ignition can result.
Do not use any battery charger which is not specified
by Yaesu.
A fire 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 antenna. Do not use modified or damaged antennas.
If charging of the battery pack cannot be completed
within the specified charging time, immediately remove
the power plug of the battery charger from the outlet.
A fire, leak, overheating, explosion, or ignition can result.
FTA-250L Operating Manual
CAUTION
Do not dangle or throw this product by holding its antenna.
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 fire 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.
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 fire or
electronic shock.
Do not use the earphones or head-phones at an extremely high volume level.
Hearing impairment can result.
Before using this transceiver in a hybrid or fuel-saving car,
be sure to check with the auto-mobile manufacturer regarding use of the transceiver in that car.
Noise generated by an onboard electrical device (inverter,
etc.) can disrupt the normal operation of the transceiver.
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 fire 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 specified options and accessories.
A failure can result.
When the battery charger is not in use, remove its power plug from the outlet.
Before discarding the worn battery pack, affix tape or
the like to its terminals.
FTA-250L Operating Manual
Controls & Connectors (Top / Front Panel)
  




FTA-250L Operating Manual

À
Antenna Jack
Á
121.5 Key
Â
PWR/VOL Knob
Ã
Loudspeaker
Ä
Microphone
Å
Æ
LED Flash-Light
LCD (Liquid Crystal Display)
Ç
Keypad
This BNC connector accepts the supplied flexible antenna or another antenna designed to provide a 50Ohm impedance on the Aircraft Communication Band.
Press and hold this key to access the emergency
frequency (121.5 MHz) instantly.
Turn this control clockwise to turn the transceiver
ON and to increase the volume. Counter-clockwise rotation to reduce the volume and turn the
transceiver OFF.
The internal speaker is located here.
To transmit, speak into the mic opening into this
opening in a normal voice level, while pressing
the PTT switch.
The display shows current operating condition.
These 18 keys select the important operating
functions of the FTA-250L.
Controls & Connectors (Left / Right Side)





Â
LOCK key
Ã
MIC/SP Jack
Ä
À
PTT (Push To Talk) Switch
Á
SQL (Squelch) key
Press this switch to transmit, and release it to receive after your transmission is completed.
Press and hold this key to lock the keypad. To unlock, repeat this process.
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
first remove the cover from the transceiver body.
Do not allow the FTA-250L to get wet
while the MIC/SP cover has been removed.
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.
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.
FTA-250L Operating Manual
Controls & Connectors (LCD)
“ ” icon appears if the selected channel is
programmed into the Scan Memory.
VOX Feature Active
Dual Watch Feature Active
ANL Feature Active
Noise Canceling Feature Active
“
” icon appears during
audio reception, or “
”
during transmission.
Battery Indicator
Stored Frequency Recall Number
Operating Frequency
Memory Group
Frequency
FTA-250L Operating Manual
Memory Name
Before You Begin
Antenna Installation
To attach the supplied antenna to the FTA-250L, grasp
the base of the antenna
firmly, and exert a moderate
“pinching” pressure on the
base as you press the antenna 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 compartment 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).
10
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 first use. Follow the procedure below:
1. Install the Lithium-ion battery pack onto the transceiver. 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 SDD12 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.
FTA-250L Operating Manual
Before You Begin
Low Battery Indication
SAD-20
As the battery discharges during use, the voltage will
gradually become lower.
AC line outlet
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 recharged before further use.
Icons
SBH-22
DC IN jack
 A fully-discharged SBR-25LI Battery Pack will
be charged completely in about 3.5 hours (depending 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 transmission).
4. When charging is complete, disconnect the SAD20 from the DC IN jack and the AC line outlet.
FTA-250L Operating Manual
(w/blink)
Description
Full battery power
Enough battery power
Low battery power
Poor battery power
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)
11
Before You Begin
External DC Power Supply Connection
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.
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.
Do not connect any accessory unapproved 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 FTA250L using the supplied screws.
SDD-12
Cigarette Lighter DC/DC
Converter (12 to 24 Volts).
As close
as possible
Ferrite Core
Wind the cable one turn,
then snap two halves.
 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 illustration above. Attach the ferrite core as close as
possible to the SDD-12 body, as shown.
12
FTA-250L Operating Manual
Before You Begin
Headset Connection
You may connect an optional headset using the supplied 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 SCU15.
 Either of the plug directions are acceptable as
long as the both screws fit the screw holes.
4. Insert the plugs of the headset to the sockets of
the SCU-15.
FTA-250L Operating Manual
Precautions
 The FTA-250L is capable of two-way communication 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
fire. Do not carry a Lithium-ion battery pack in your
pocket, where keys or coins could short the terminals. This could create a serious fire/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.
13
Basic Operation
Turning the power on and off
Adjusting the squelch
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-clockwise into the click-stop position.
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. P r e s s t h e S Q L k e y t o
save the squelch setting
and return to normal operation.
” icon appears on the display when the
 The “
audio signal is received on the current frequency.
Adjusting the volume
1. Rotate the PWR/VOL knob
to adjust the receiver volume.
14
FTA-250L Operating Manual
Basic Operation
Monitor Switch
When listening to a very weak signal from an aircraft
or ground station, you may observe the signal disappearing 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 operation, press the SQL key
momentarily.
FTA-250L Operating Manual
Adjusting the frequency
 Pressing the [►] tunes
the FTA-250L toward
a h i g h e r f r e q u e n c y,
while pressing the [◄]
will lower the operating
frequency, in steps preprogrammed for the current operating band.
 Directly entering frequencies 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
final “5” in the frequency as below:
[1] à [1] à [8] à [2] à [7].
15
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 confirming the cancelation of the
emergency mode will appear.
3. Press the [◄] key to select “YES”, then press the
[ENT] key.
16
Transmission
1. Press and hold the PTT
switch.
The “
” icon will appear 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 defaults:
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
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 entered.
FTA-250L Operating Manual
COMM
The basic operating mode for communication.
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 configuration to be customized for
your personal operating conditions.
17
Basic Operation
BASIC OPERATION OF THE MENU MODE
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.
1. Press the [MENU] key.
7. Press the [ENT] key to store the selected setting.
8. Press the PTT switch to return to normal operation.
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 operation.
2. Select “SETUP” by pressing the [◄] or [►] key.
3. Press the [ENT] key.
The same operation process as the above is written as follows in this operation manual.
[MENU] à “SETUP” à “CONFIG” à “KEY BEEP”
4. Select the desired menu
item by pressing the [ ▲ ]
or [▼] key, and then press
the [ENT] key.
18
FTA-250L Operating Manual
Advanced Operation
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.
Recall Frequency
1. Press the [▲] key.
 You will see the previously selected recall
number appearing on
the LCD.
2. Press the [ ▲ ] or [ ▼ ] key to select previously
stored frequencies.
..... à 7 à 8 à 9
1 à2 à3
à
NORMAL:
Up to 9 frequencies may be memorized. Once all 9
memories have been programmed, previous frequencies will be over-written, on a first-in, first-out basis.
à
The setting changes in the following order.
The FTA-250L can memorize up to 9 operating frequencies automatically, and recall them for later use.
à
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.
Flip-Flop Feature (Frequency Recall)
à
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.
à
Pitch Control
Tip: The default setting: NORMAL
3. Press the PTT switch to return to normal operation.
FTA-250L Operating Manual
19
Advanced Operation
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 simplifies access
when you are in an unfamiliar location.
1. Press the [MENU] key.
2. Select “WX CH” by pressing 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, select the mode other than “WX CH” by pressing the
[◄] or [►] key, and then press the [ENT] key.
20
Weather alert reception
In the event of extreme weather disturbances, such
as storms and hurricanes, the NOAA (National Oceanic and Atmospheric Administration) sends a weather alert accompanied by a 1050 Hz tone and subsequent weather report on one of the NOAA weather
channels.
When the transceiver receives
the weather alert on the operating 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 SETUP menu. See page 35 for details.
FTA-250L Operating Manual
Advanced Operation
Dual Watch Operation
The dual watch feature automatically checks for activity on the P-ch (priority channel) set via the PRIORITY-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 keypad.
3. Select “FINISH” by pressing the [◄] or [►] key, and
then press the [ENT] key.
4. Press the PTT switch to return to normal operation.
FTA-250L Operating Manual
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 displayed, indicating the FTA250L is in dual watch.
 When the transceiver encounters a signal on the
current channel, the radio polls both channels alternately 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 resumes.
3. To stop the dual watch, repeat steps 1 and 2
above.
21
Advanced Operation
1. [ M E N U ] à “ S E T U P ” à “ C O M M S E T U P ” 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.
à2
à
22
The TOT (time-out timer) shuts off the transceiver after continuous transmission exceeds the programmed
time. This feature prevents unintended transmission
by mistake and reduces battery consumption.
à3
à
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 operation.
TOT Feature
à4
à
To cancel background noise when transmitting and
receiving.
Enables/disables the Noise-canceling function of the
transmitter and receiver independently.
1. [ M E N U ] à “ S E T U P ” à “ C O M M S E T U P ” à
“NOISE CANCEL”.
2. S e l e c t “ T X M O D E ” b y
pressing the [ ◄ ] or [ ► ]
key, and then press the
[ENT] key.
à 5 (MIN)
à
Noise Cancellation
Tip: The default setting: 5 MIN
3. Press the PTT switch to return to normal operation.
FTA-250L Operating Manual
Advanced Operation
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
50 %
70 %
80 %
90 %
: Disables this function.
: Sleeps for 100 ms after 100 ms awake
: Sleeps for 250 ms after 100 ms awake
: Sleeps for 450 ms after 100 ms awake
: Sleeps for 900 ms after 100 ms awake
Using the Headset Microphone
If you want to use the microphone of an aviation
headset, change the assignment of microphone controlled with the PTT switch.
1. [ M E N U ] à “ S E T U P ” à “ C O M M S E T U P ” 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 operation.
When an optional aviation headset is connected, the
PTT switch on the transceiver will activate the headset microphone for transmission.
Note: If you find it difficult to use the PTT switch of
the transceiver, we recommend to use an aftermarket external PTT switch.
Tip: The default setting: 50 %
3. Press the PTT switch to return to normal operation.
FTA-250L Operating Manual
23
Advanced Operation
VOX Operation
 To adjust the VOX gain, select one of the following gain levels on the item “VOX LEVEL” of the
COMM SETUP menu in the SETUP mode.
MIN / LV1 / LV2 / LV3 / MAX
Notes:  The VOX system does not work when using just the internal microphone; an external headset must be used.
 Do not activate the VOX system when connecting the optional microphone SSM-10A.
 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)
If you want to have both hands free, use a headset
and activate the VOX (voice-actuated transmit/receive
switching) system.
1. [ M E N U ] à “ S E T U P ” à “ C O M M S E T U P ” 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 indicates that the VOX system
is active.
24
FTA-250L Operating Manual
Advanced Operation
Side Tone Control
When utilizing an external headset, you may monitor 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. [ M E N U ] à “ S E T U P ” à “ C O M M S E T U P ” 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 operation.
 To change the side tone level temporarily during
the monitoring, pressing the [▲], [▼], [◄] or [►]
key when pressing and holding the PTT switch.
FTA-250L Operating Manual
Lock Function
This function prevents accidental changes to the frequency 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
k e y, L O C K k e y, t h e
PWR/VOL knob, and
the [121.5] key are disabled.
 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 seconds and then the display will return to the previous screen.
25
Advanced Operation
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 operation.
26
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 system is active.
FTA-250L Operating Manual
Advanced Operation
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. S e l e c t “ 2 5 K H Z ” o r
“8.33KHZ” by pressing the
[ ▲ ] or [ ▼ ] key, and then
press the [ENT] key.
3. Press the PTT switch to return to normal operation.
Note: When you set the channel step to 8.33 kHz,
the channel display differs from actual operating frequency; see the chart below. However,
the operator (pilot, tower, control, etc.) will call
out the frequency according to what the display
indicates.
FTA-250L Operating Manual
Operating
Frequency
1**.0000 MHz
1**.0083 MHz
1**.0166 MHz
1**.0250 MHz
1**.0333 MHz
1**.0416 MHz
1**.0500 MHz
1**.0583 MHz
1**.0666 MHz
1**.0750 MHz
1**.0833 MHz
1**.0916 MHz
Display
8.33 kHz Step
25 kHz Step
1**.005
1**.000
1**.010
1**.015
1**.030
1**.025
1**.035
1**.040
1**.055
1**.050
1**.060
1**.065
1**.080
1**.075
1**.085
1**.090
 The adjacent channel selectivity will be slightly
degraded while receiving using 8.33 kHz channel
steps.
27

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