Yaesu FTA-310 User manual

Operating Manual
AIR BAND TRANSCEIVER

Contents
Important Notice! .......................................................... 1
Introduction ................................................................... 2
Accessories & Options ................................................ 3
Control & Connectors .................................................. 5
Top Panel ........................................................................... 5
Front Panel ......................................................................... 6
Side Panel .......................................................................... 7
Keypad ............................................................................... 8
LCD Display ...................................................................... 9
Before You Begin ........................................................ 10
Precautions ....................................................................... 10
Belt Clip Installation ........................................................ 10
Battery Installation and Removal .................................... 11
Battery Charging .............................................................. 12
Low Battery Indication .................................................... 13
Installing the FBA-25A Alkaline Battery Case ............... 13
Basic Operation .......................................................... 14
Preliminary Steps ............................................................. 14
Operation Quick Start ...................................................... 14
Squelch Adjustment ......................................................... 15
Accessing the 121.5 MHz Emergency Frequency ........... 16
Transmission .................................................................... 16
Advanced Operation .................................................. 17
Tuning Methods ............................................................... 17
Reception of Weather Channel Broadcasts ...................... 18
Monitor Switch ................................................................ 19
ANL (Automatic Noise Limiter) Feature ........................ 19
Temperature/battery Voltage Display .............................. 20
LOCK Function ............................................................... 21
Beep On/Off ..................................................................... 21
Receive Battery Saver Setup ........................................... 22
Changing the Channel Steps ............................................ 23
Pitch Control .................................................................... 24
VOX Operation ................................................................ 25
PA Operation .................................................................... 26
Timer Operation ............................................................... 28
Memory Operation ...................................................... 30
Memory System Operation .............................................. 30
Memory Storage .............................................................. 30
Recalling the Memories ................................................... 31
Scanning Operation ................................................... 32
Dual Watch Operation ................................................ 34
Priority Dual Watch Operation .................................. 35
VOR Navigation .......................................................... 36
To Select the DVOR Mode .............................................. 37
Flying to a VOR Station .................................................. 38
Entering a Desired Course ............................................... 40
Position Cross-checking .................................................. 41
Split Operation ................................................................. 42
Programming the USER Key Assignment ................ 43
Field Programming Mode .......................................... 44
CPU Resetting ............................................................. 45
Menu (“Set”) Mode ..................................................... 46
Specications ............................................................. 54
Troubleshooting ......................................................... 56
Book Memory Channel List ....................................... 57
NOTICE
There are no user-serviceable points inside this
transceiver. All service jobs must be referred to
your Authorized Service Center.

FTA-310 OperATing MAnuAl 1
Important notIce!
FCC RF Exposure Compliance Requirements for Occupational Use Only:
The FTA-310 has been tested and complies with the Federal Communications Commission (FCC) RF exposure lim-
its for Occupational Use/Controlled Exposure Environment. In addition, it 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 Hu-
man 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
congurations. 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 red LED on the upper right corner of the front panel of the radio is illu-
minated. You can cause the radio to transmit by pressing the P-T-T button.
 Always use Yaesu authorized accessories.

FTA-310 OperATing MAnuAl
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IntroductIon
The YAESU FTA-310 is a compact, stylish, solid hand-held transceiver providing communication (transmit and re-
ceive) capability on the International Aircraft Communication Band (“COM” band: 118 ~ 136.975 MHz), and it addi-
tionally provides VOR and CDI navigation features on the “NAV” band (108 ~ 117.975 MHz).
The FTA-310 boasts 0.8 Watt of clean audio output from its 1.4” (36-mm) diameter loudspeaker, and it also provides
8.33 kHz synthesizer steps for the receiving of the new narrow-band channel plan. The FTA-310 includes both Tem-
perature and Supply Voltage displays with our exclusive Omni-GlowTM display back-lighting for minimal degradation
of your night vision, NOAA weather band monitoring, 8-character Alpha/Numeric Display, 150 Memory Channels, and
up to 100 “Book Memory” Channels. The channel congurations are can be easily reprogrammed in minutes using the
optional PC Programming Kit and your PC.
We recommend that you read this manual in its entirety, so as to understand the many features of the FTA-310 com-
pletely. Keep this manual handy, so you may use it for reference.
NOTE: The FTA-310’s VOR and CDI Navigation features are supplemental aids to navigation only, and are not in-
tended to be a substitute for accurate (primary) VOR/CDI or landing service equipment.
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 communications ap-
plications, and our worldwide support network is here to serve you. Let us help you get your message across.

FTA-310 OperATing MAnuAl
3
accessorIes & optIons
Supplied Accessories
Ni-MH Battery Pack (7.2V) FNB-83
Overnight Charger PA-48B/C
Charger Cradle CD-28
12 V DC Charging Cradle CD-59
Helical Antenna YHA-73
Quick Draw Belt Clip CLIP-14
Headset Cable CT-96
Alkaline Battery Case FBA-25A
Operating Manual
Warranty Card
 “B” suffix is for use with 100-240 VAC, Type-A
plug or “C” suffix is for use with 100-240 VAC,
Type-C plug.
Available Options
MH-44B4B Speaker Microphone
E-DC-5B DC Cable w/Noise Filter
E-DC-6 DC Cable; plug and wire only
VAC-370 Desktop Rapid Charger
PC Programming Kit
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
on this apparatus.

FTA-310 OperATing MAnuAl
4
accessorIes & optIons
PTT Switch (not supplied)
An external PTT switch is
required for use with an avia-
tion headset.
Headset
(not supplied)
E-DC-5B
DC Cable w/Noise Filter (Option)
CT-96
Headset Cable

FTA-310 OperATing MAnuAl
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controls & connectors (top panel)
 Antenna Jack
This BNC connector accepts the supplied flexible
antenna, or another antenna designed to provide 50
 impedance on the Aircraft Communication Band.
 MIC/EAR Jack
You may connect the supplied CT-96 Headset Cable
or the (optional) MH-44B4B Speaker/Microphone
to this jack. To use this jack, you must rst remove
the plastic cap by rotating it counter-clockwise, then
lifting it away from the transceiver body.
Do not allow the FTA-310 to become sub-
merged in water while the plastic cover
over the MIC/EAR jack is removed.
 POWER/VOLUME (Inner) Knob
Turn this (inner) control clockwise to turn the radio
on and to increase the volume. Counterclockwise
rotation into the click-stop will turn the radio off.
Pressing this knob downward momentarily selects
the tuning methods among the VFO (Variable Fre-
quency Oscillator), MR (Memory Recall), BOOK
(Pre-Programmed Memories), and WX (Weather
Channel Memories) modes.
Note: The WX mode is available in the USA ver-
sion only.
 DIAL Selector (Outer) Knob
This (outer) 20-position detented rotary switch tunes
the operating frequency or selects the memory chan-
nels.
   

FTA-310 OperATing MAnuAl
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controls & connectors (Front panel)
 BUSY/TX Indicator Lamp
This lamp glows green when a signal is being re-
ceived, and red when transmitting.
 Loudspeaker
The internal speaker is located in this position.
 Microphone
Speak across this opening in a normal voice level,
while pressing the PTT switch, to transmit.
 LCD (Liquid Crystal Display)
The display shows selected operating conditions, as
indicated on the next page.
 Keypad
The keypad is used for most radio command opera-
tions. Several keys have triple functions.
The primary functions are activated by simply
pressing the key momentarily.
The secondary functions are activated by pressing
the key followed by [F] key.
The third functions are activated by pressing and
holding in the key for 2 seconds.
These functions are described in detail on page 8.
 Battery Pack Latch
Open this latch for battery removal.







FTA-310 OperATing MAnuAl
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controls & connectors (sIde panel)
 PTT (Push To Talk) Switch
Press this button to transmit when you are operating
in the COM band. Release this button to return to
the “Receive” mode. See page 16 for details.
 MONITOR Switch
This button may be pressed to “open” the squelch
manually, allowing you to listen for very weak
signals. Press and hold this button for 2 seconds
to “open” the squelch continuously. Press this but-
ton again to resume normal (quiet) monitoring. See
page 15 for details.
 EXT DC Jack
When an external 12-Volt DC power source is avail-
able, you may connect the (optional) E-DC-5B Ex-
ternal DC Cable here.
1) Do not allow the FTA-310 to become
submerged in water while the rubber cover
is removed.
2) Do not connect any wire to this jack if that wire
is connected directly to a 28-Volt DC source. Con-
necting the FTA-310 directly to a source which
exceeds 15.0 Volts DC will result in damage to the
unit, and this type of damage is not covered by the
Limited warranty on this product.




FTA-310 OperATing MAnuAl
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controls & connectors (Keypad)
Primary Function
(Press Key)
Secondary Function
(Press [F] + key)
Third Function
(Press and Hold key)
Primary Function
(Press Key)
Secondary Function
(Press [F] + key)
Third Function
(Press and Hold key)
Primary Function
(Press Key)
Secondary Function
(Press [F] + key)
Third Function
(Press and Hold key)
Primary Function
(Press Key)
Secondary Function
(Press [F] + key)
Third Function
(Press and Hold key)
Frequency Entry Digit 1
Activates DVOR mode.
None
Frequency Entry Digit 4
Activates Deviation
Indicator mode.
None
Frequency Entry Digit 7
Activates Split (Duplex)
mode.
None
None
Split-Memory
“Write” Command.
Memory “Write”
Command.
Frequency Entry Digit 2
Activates “TO” VOR
mode.
None
Frequency Entry Digit 5
Activates Pitch Control
feature.
None
Frequency Entry Digit 8
Activates the Stop Watch
Timer.
None
Frequency Entry Digit 0
Adjusts the Squelch
threshold level.
None
Frequency Entry Digit 3
Activates “FROM” VOR
mode.
None
Frequency Entry Digit 6
Displays the Battery Voltage and Current
Temperature inside the transceiver’s case.
None
Frequency Entry Digit 9
Allows Skipping of
Channel during Scan.
None
Swiches the VFO mode
“A” and “B.”
Activates the Dual Watch
feature.
Activates Scanning.
Select Memory Display
Type.
Activates the Key Lockout
feature.
Selects DVOR Display
Type
Selects Emergency
Channel (121.5 MHz).
None
None
Activates the Automatic Noise
Limiter during AM reception.
None
Activates the Public
Address feature.
Activates “Secondary” key
mode.
Cancel the “Secondary”
key mode of the [F] key.
None

FTA-310 OperATing MAnuAl
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controls & connectors (lcd dIsplay)
This field displays the course
heading in degrees. See page 37.
This is the Course Deviation Indicator, used
during VOR Navigation. See page 38.
This icon is used during
VOR navigation, to
indicate that the displayed
information is based on
a course from the VOR
station. See page 37.
This indicator confirms
that this channel will be
skipped during scan. See
page 33.
This indicator confirms
t h a t Secondary K e y
Function is active. See
page 8.
This icon is used during
VOR navigation, to
indicate that the displayed
information is based on
a course t o t h e VOR
station. See page 37.
These digits provide frequency or alpha-numeric
information about the channel you are using.
This indicator confirms
that “Dual Watch” is
active. See page 34.
This indicator confirms
that “Automatic Noise
Limiter” is active. See
page 19.
This indicator conrms that
the “Split” (Duplex) mode
is activeted during VOR
operation. See page 42.
Thi s i c on is the “ L ow
Battery” indicator, which
blinks when the battery
voltage becomes too low
for proper operation.
This indicator confirms
that “VOX” system is
active. See page 25.
This icon indicates that the
channel step is selected to
“8.33 kHz” in the NAV and
COM band. See page 23.
This icon indicates that
the “Weather Alert” feature
is active. See page 52.
This icon indicates that
the “Book” Memory Bank
is in use. See page 17.

FTA-310 OperATing MAnuAl
10
BeFore you BegIn
Precautions
 The FTA-310 is capable of two-way communica-
tion on channels used for critical aviation safety
communications. Therefore, it is important that this
radio be kept away from children or other unauthor-
ized users at all times.
 When making DC connections via the the optional
E-DC-5B/E-DC-6 DC cable, be absolutely certain
to observe the proper voltage level and polarity
guidelines. Do not connect this radio directly to any
24 ~ 28 Volt DC source, nor to AC power of any
kind. Connecting the FTA-310 directly to a source
which exceeds 15.0 Volts DC will result in damage
to the unit. The Limited Warranty for this product
does not cover damage caused by the application of
improper voltage.
 Do not dispose of the Ni-MH Battery Pack in a re.
Do not carry a Ni-MH Battery Pack in your pocket,
where keys or coins could short the terminals. This
could create a serious re/burn danger, and possibly
cause damage to the Ni-MH pack.
 Although the FTA-310 is designed to be Submers-
ible (3 ft., 30 min.), its enclosure is not designed to
guarantee protection from ingress of water under
extreme pressure. Do not allow the radio to become
submerged in deep water, and do not subject it to
water spray under pressure.
Belt Clip Installation
 Connect the hanger to the rear of the FTA-310, with
the notch pointing directly up, using the supplied
screw (Fig 1). Use only the screw included with the
clip to mount the clip to the back of the FTA-310.
 Clip the Quick-Draw Belt Clip onto your belt (Fig 2).
 To install the FTA-310 into the Quick-Draw Belt
Clip, align the hanger with the Quick-Draw Belt
Clip, and slide the FTA-310 into its slot until a click
is heard (Fig 3).
 To remove the FTA-310 from the Quick-Draw Belt
Clip, rotate the FTA-310 180 degrees, then slide the
FTA-310 out from the Quick-Draw Belt Clip (Fig 4).

FTA-310 OperATing MAnuAl
11
Battery Installation and Removal
 To install the battery, insert the battery pack into the
battery compartment on the back of the radio, then
close the Battery Pack Latch until it locks in place
with a “Click.”
BeFore you BegIn
 To remove the battery, turn the radio off and remove
any protective cases. Open the Battery Pack Latch
on the bottom of the radio, then lift the battery up-
ward and out from the radio.
Do not attempt to open any of the rechargeable
Ni-MH packs, as personal injury or damage to
the Ni-MH pack could occur if a cell or cells become
accidentally short-circuited.
Fig 4Fig 3
Fig 2
Fig 1

FTA-310 OperATing MAnuAl
12
Battery Charging
It is necessary to charge the Ni-MH battery fully before
its rst use. Follow these procedures:

Install the supplied FNB-83 Ni-MH battery pack
onto the transceiver. Ensure that the transceiver is
switched off.
Use for PA-48/CD-28
1. Insert the cable plug into the jack located on the
right side of the CD-28 Charging Cradle then plug
the PA-48 Battery Charger into the AC line outlet.
2. Insert the transceiver and battery pack into the CD-
28; the antenna jack should be at the left side when
viewing the charger from the front.
3. If the transceiver and battery pack are inserted
correctly, the RED
indicator on the CD-
28 will glow. A fully-
discharged pack will
be charged completely
in 12 hours.
Use for CD-59
1. Insert the cigarette lighter plug into the cigarette
lighter socket (DC 11 V ~ 16 V).
2. Insert the transceiver and battery pack into the CD-
59; the antenna jack should be at the left side when
viewing the charger from the front.
3. If the transceiver and battery pack are inserted cor-
rectly, the RED indicator on the CD-59 will glow. A
fully-discharged pack will be charged completely in
15 hours.
BeFore you BegIn
CD-28
PA-48
CD-59
DC 11 V ~ 16 V

FTA-310 OperATing MAnuAl
13
BeFore you BegIn
Important Notes:
 The PA-48 is not designed to power the transceiver
for operation (reception or transmission).
 Do not leave the charger connected to the trans-
ceiver for continuous periods in excess of 24 hours.
Long term overcharging can degrade the Ni-MH
battery pack and signicantly shorten its useful life.
 If using a charger other than the PA-48/CD-28,
CD-59, or if using a battery pack other than the
FNB-83, follow the appropriate instructions pro-
vided with the charger/battery. Contact your Dealer
if you have any doubts about the appropriateness of
the particular charger or battery pack you intend to
use.
Low Battery Indication
 As your battery discharges during use, the voltage
will gradually become lower. When the battery volt-
age reaches 6.0 Volts, the
“” icon will blink on the
LCD display, indicating that
the battery pack must be re-
charged before further use.

Avoid recharging Ni-MH batteries before the “Low
Battery” indicator is observed, as this can degrade
the charge capacity of your Ni-MH battery pack.
YAESU recommends that you carry an extra, fully-
charged pack with you so you will not lose commu-
nications capability due to a depleted Ni-MH battery.
Installing the FBA-25A Alkaline Battery Case
The supplied FBA-25A Battery Case allows operation
of the FTA-310 using six “AA” size Alkaline batteries.
When installing batteries, insert the (–) end first, then
press in the (+) end so the battery snaps into place. Al-
ways replace all six batteries at the same time, paying
attention to the polarity indicated inside the case.
The FBA-25A must not be used with recharge-
able cells. The FBA-25A does not contain the
thermal and over-current protection circuits (provided
in the “FNB” series of Ni-MH Battery Packs) required
when utilizing Ni-Cd and Ni-MH cells.

FTA-310 OperATing MAnuAl
14
BasIc operatIon
Preliminary Steps
 Install a charged battery pack onto the transceiver,
as described previously.
 To attach the supplied antenna to the FTA-310,
grasp the base of the antenna firmly, and exert a
moderate “pinching” pressure on the base as you
press the antenna onto the radio’s antenna connec-
tor. While exerting this pressure, rotate the antenna
clockwise 1/4 turnto lock the antenna in place.
Operation Quick Start
 To turn the radio on,
rotate the (inner) VOL-
UME knob out of the
click-stop.
 A channel frequency
should appear on the dis-
play. If not, press down-
ward (momentarily) on
the VOLUME knob
(repeatedly, if necessary)
so that “- VFO -” appears
on the display, followed by a channel frequency.
 Directly entering frequencies from the keypad is the
easiest method if you know the frequency on which
you wish to operate. Just enter the ve digits of the
frequency to move to that frequency.
For example, to set 134.35 MHz,
press [1]  [3]  [4]  [3]  [5].
To set 118.275 MHz, you do not need to press the
nal “5” in the frequency:
[1]  [1]  [8]  [2]  [7].

FTA-310 OperATing MAnuAl
15
BasIc operatIon
 You may also turn the
top panel’s (outer)
DIAL selector knob to
choose the desired op-
erating frequency. The
channel frequency will
appear on the LCD.
 Rotate the VOLUME
knob to set the volume
level. If no signal is
present, press and hold
the MONITOR switch
for 2 seconds; back-
ground noise will now
be heard, and you may
use this noise to set the
VOLUME knob f o r
the desired audio level.
Press the MONITOR
switch momentarily to
silence the noise and
resume normal (quiet) monitoring.
 To turn the radio off,
turn the VOLUME
knob fully counter-
clockwise into the click
stop position.
Squelch Adjustment
 P r e s s t h e [F] k e y
momentarily,
then press the
[0(S Q ) ] k e y. T h i s
instantly recalls Menu
Item 01 “SQL” which
is adjusts the threshold
level of the squelch circuit.
 Rotate the DIAL selector knob to set the squelch
threshold (0 to 8) so that the receiver is just silenced.
A higher number indicates that a higher signal level
is required in order to open the squelch.
 Press downward on the VOLUME knob to save
your new setting.
 Press the PTT switch to exit the Menu (“SET”)
mode.

FTA-310 OperATing MAnuAl
16
Accessing the 121.5 MHz Emergency Frequency
The FTA-310 can quickly access the 121.500 MHz
Emergency Frequency. This function can be activated
even when the keypad lock function (described on page
21) is in use.
 To access the Emer-
gency Frequency, press
the [121.5] key mo-
mentarily.

To exit the Emergency Fre-
quency, press downward
on the VOLUME knob.
Transmission
 To transmit, press and hold the PTT switch. Speak
into the microphone
area of the front panel
grille in a normal voice
level.
 To return to the receive
mode, release the PTT
switch.
BasIc operatIon
Operating Advice: Use of Internal Microphone
Your FTA-310 is extensively sealed against water ingress, so as to ensure reliable op-
eration even if it has become submerged. This unique construction includes waterproof-
ing seals around the microphone and speaker enclosure, requiring that care be exercised
when speaking into the internal microphone.
Please refer to the illustration, and observe the location of the internal microphone. It is
important that you focus your speech in the direction of the microphone's location, so as
to ensure sufcient voice input to the radio.
If you find it difficult to utilize the FTA-310 conveniently and safe while speaking
directly into the microphone, we recommend the use of the MH-44B4B Speaker/Micro-
phone (option), or an after-market aviation headset/boom microphone.

FTA-310 OperATing MAnuAl
17
advanced operatIon
Tuning Methods
Throughout this manual, you will see references to sev-
eral different frequency setting methods. Each will be
particularly useful in a particular operating situation,
and they are described below:
 VFO (Variable Frequency Oscillator)
The VFO is a “tuning dial”
sys tem whi ch allo ws you
to tune through the NAV or
COM bands using the DIAL
selector, the Keypad, or the scanner. The FTA-310 has
two VFOs which are called VFO-A and VFO-B. Press
the [SCAN(DW)] key momentarily to switch between
VFO-A and VFO-B. You may set VFO-A to the NAV
band, and VFO-B to the COM band, if you like.
 MR (Memory Recall)
The MR (Memory Recall)
mode of the FTA-310 pro-
vides the user with the ability
to store and recall as many
as 150 channels in the radio’s main memory bank.
These memory channels may also be labeled by you
with an alpha/numeric name of up to 8 characters in
length, to aid in quick identication of the channel. See
page 30 for details on creating alpha/numeric labels.
 BOOK (Pre-Programmed) Memories
The Book memories are pre-
programmed, either at the
factory or by your Dealer
(depending on your country’s
requirements), typically including the major COM
and NAV band station frequencies used in your area.
The Book memories can be changed by the user.
See page 44 for details.

WX (Weather Channel) Memories (USA version only)
Ten Weather Channels are pre-programmed at the
factory. The FTA-310 will
automatically scan this spe-
cial bank when it is selected
by the user.

FTA-310 OperATing MAnuAl
18
Reception of Weather Channel Broadcasts
(USA version only)
The FTA-310 can receive VHF Weather Channel broad-
casts, which may assist your ight planning. The FTA-
310 includes a ten-channel auto-search feature, which
simplies access to Weather Channels when you are in
an unfamiliar location.
 To receive Weather
Channels, press down-
ward on the VOLUME
knob (repeatedly, if
necessary) to select the
Weather Channel mode.
In the Weather Channel
mode, “
- WX -
” will appear on the display.
 The FTA-310 will now scan quickly through the
ten standard Weather Channels, and will stop on the
rst active station found.
 If there are two or more weather channels audible in
your area, you may select the alternate channel(s) by
pressing the PTT switch. Pressing the PTT switch
re-initiates the scanning process.
 If there are no Weather Channels in your area, the
scanner will not stop. Press the MONITOR switch
to stop the scanner.
 You can also select Weather Channels manually by
rotating the DIAL selector knob.
 To conrm the current Weather Channel frequency,
press the [ ( )] key momentarily. The display
changes to frequency indication. Press the
[ ( )] key again to return to normal display.
 To exit the Weather Channel mode, press downward
on the VOLUME knob momentarily to return to the
VFO mode.
Note 1:
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. You may
setup the Alert function when receiving the Weather
Alert signal via Menu Item 20 “WXAF,” if desired. See
page 52 for details.
Note 2:
The Weather Channel mode memorizes the last Weather
Channel you have used, and will retain this information
until the radio is turned off.
advanced operatIon