Uniden Atlantis 275 User manual

Atlantis 275
RADIO VHF MARITIME FLOTTANTE
GUIDE D’UTILISATION
FLOATING VHF MARINE RADIO
OWNER’S MANUAL

MAKING A DISTRESS CALL
For future reference, write your boat’s name & call sign here:
Speak slowly - clearly - calmly.
1. Make sure your radio is on.
2. Press the
16/9-TRI key to switch to Channel 16 (156.8 MHz). (If
the corner of the display does not show 16, press the 16/9-TRI
key again until it does.)
3. Press the
Push to Talk key and say: “MAYDAY -- MAYDAY --
MAYDAY.”
4. Say “THIS IS
{name of your boat (three times) and call sign/boat
registration number (once)}. ”
5. Repeat “MAYDAY
{name of your boat} ” once.
6. Tell where you are: (what navigational aids or landmarks are
near, or read the latitude and longitude from your GPS).
7. State the nature of your distress (e.g. sinking, medical

8. State the type of assistance you need (medical, towing, pumps,
etc.).
9. Give the number of persons aboard and describe the condition
of any injured persons.
10. Estimate present seaworthiness of your ship (e.g. how

11. 
32 foot cabin cruiser, white hull, blue deck house”).
12. Say: “I WILL BE LISTENING ON CHANNEL 16.”
13. End the message by saying “THIS IS
{name or call sign of your
boat} , OVER.”
14. Release the Push to Talk key and listen.



FAIRE UN APPEL DE DÉTRESSE
Pour toute référence ultérieure, transcrivez ci-dessous le nom
et l’indicatif d’appel de votre bateau:
Parlez lentement – clairement – calmement.
1. 
2. Appuyez sur la touche 16/9-TRI

de nouveau sur la touche 16/9-TRI
3. Appuyez sur le bouton de microphone Push to Talk et dites:“MAYDAY
-- MAYDAY -- MAYDAY”.
4. ICI {nom de votre bateau

(une fois)}”.
5. MAYDAY {nom ou indicatif d’appel de votre bateau} une fois”.
6. 

latitude apparaissant sur votre dispositif GPS).
7. Révélez la nature de votre détresse (par exemple, nous sommes en
train de couler, urgence médicale, un homme à la mer, un incendie, nous
sommes à la dérive, etc.
8. Révélez la nature de l’aide désirée (médicale, remorquage, essence, etc.)
9. 
y en a.
10. 
degré de l’urgence par rapport une inondation, et une incendie.
11. 


12. JE VAIS ÉCOUTER SUR LE CANAL 16”.
13. Terminez le message en disant “ICI {nom ou indicatif d’appel de votre
bateau}, À VOUS”.
14. Relâchez le bouton Push to Talk du microphone et écoutez.




INTRODUCTION.................................................. E-1
FEATURES..........................................................................E-1
WATERPROOF SPECIFICATIONS ....................................E-2
GETTING STARTED............................................ E-3
WHAT’S INCLUDED............................................................E-3
PARTS OF THE ATLANTIS 275 .........................................E-4
Front view.........................................................................E-4
Back view .........................................................................E-4
Charger .............................................................................E-6
READING THE DISPLAY....................................................E-6
Display icons and what they mean ................................E-7
HOW IT WORKS.................................................. E-8
NORMAL MODE OPERATION ...........................................E-9
Normal mode with Weather Alert Watch .......................E-9
Normal mode with Triple Watch or Dual Watch..........E-10
SCAN MODE OPERATION...............................................E-10
Using the radio in scan mode ......................................E-11
Scan mode with Weather Alert Watch .........................E-11
Scan mode with Triple Watch or Dual Watch..............E-12
WEATHER MODE .............................................................E-12
Using the radio in weather mode .................................E-12
Weather mode with Weather Alert Watch....................E-12
Weather mode with Triple Watch or Dual Watch ........E-13
SETTING UP THE HARDWARE ....................... E-13
MOUNTING THE CHARGER ............................................E-13
CHARGING THE BATTERY..............................................E-13
Important notes on charging the battery.....................E-14
INSTALLING AND REMOVING THE BELT CLIP.............E-14
USING YOUR RADIO ........................................ E-14
CHANGING THE VOLUME ..............................................E-14
SETTING THE SQUELCH LEVEL ....................................E-15

CHANGING THE CHANNEL.............................................E-15
MAKING A TRANSMISSION.............................................E-16
Boosting the transmission power................................E-16
SETTING KEY LOCK ........................................................E-17
SETTING THE UIC CHANNEL MODE..............................E-17
TURNING THE KEY BEEP ON AND OFF ........................E-17
BACKLIGHTING................................................................E-17
ADJUST LCD CONTRAST ...............................................E-18
SAVING A CHANNEL TO MEMORY ...............................E-18
SCANNING CHANNELS IN MEMORY .............................E-18
BATTERY SAVE FEATURE..............................................E-18
SPEAKER VIBRATION TONE ..........................................E-18
MAINTENANCE AND TROUBLESHOOTING... E-19
COMMON QUESTIONS ....................................................E-19
SPECIFICATIONS ............................................. E-20
Marine Radio Channel Chart.........................................E-21
Weather Channels and Frequencies (US and CAN) ...E-26
REGULATIONS AND SAFETY WARNINGS .... E-27
MARITIME RADIO SERVICES OPERATION ...................E-27
BASIC RADIO GUIDELINES.............................................E-27
THREE-YEAR LIMITED WARRANTY............... E-30

E-1Uniden Atlantis 275 Radio Owner’s Manual
INTRODUCTION
FEATURES
xMemory scan mode
Lets you save channels to memory and monitor them in
quick succession.
xTransmit power level select
Lets you boost the transmitter power from L (Low = 1
Watt) to M (Medium = 2.5 Watts) or H (High = 6 Watts) for
added transmission distance.
xBattery level display.
xBattery Save
Unit turns off RX power after 3 seconds without RX or TX.
xDual and Triple operation
These different watch modes let you monitor up to two

regular marine channel.
xAll marine VHF channels for the U.S., Canada, and
international waters
xNational Oceanic and Atmospheric Administration
(NOAA) Weather Channel watch
Sounds a warning tone when a hazard alert is issued.
xKeylock On/Off
Locks the keys to prevent accidental input.
x10 built-in weather channels.
xFlashlight/Strobe


xBacklight
User-selectable white backlight during daylight and
amber backlight during night.
xContrast Adjust

xVibrating Speaker Tone
Clears water from the speaker cavity.

E-2 Uniden Atlantis 275 Radio Owner’s Manual
x
WATERPROOF SPECIFICATIONS
The Atlantis 275 is a submersible radio, complying with
8water-resistant standards. The radio can be
submerged in 1.5 meter of water for 30 minutes without
damage.




After your radio is submerged in water, you might notice that
the sound is distorted. This is because there is still water
remaining in and around the speaker and microphone. Just
shake the radio to clear excess water, and the sound should
return to normal.
If your radio is exposured to salt water, clean it thoroughly
with fresh water and dry it before turning it on. The Atlantis
275 has a special tone that will vibrate the speaker to
remove water inside the casing (see page E-18).
The charger is not waterproof.

E-3Uniden Atlantis 275 Radio Owner’s Manual
GETTING STARTED

If any pieces are missing or damaged, and for information on
accessories, visit www.uniden.com.
Atlantis 275 Radio
(Removeable antenna)
Charger
Not Shown:
Hand Strap
Owner’s Manual
AC Adapter DC Adapter
Belt Clip
Mounting Hardware

E-4 Uniden Atlantis 275 Radio Owner’s Manual
PARTS OF THE ATLANTIS 275
Front view
Back view
VOL SQL key
Antenna
Channel up/down keys
Push toTalk key
16/9 Tri (16/9
Triple watch) key
6W-Boost key
MEM SOS key
Alert WX key
LCD display
External Speaker/
MIC jack
LOCK UIC key
High/Medium/Low key
Power/Light key
Scan Dual key
Microphone
Speaker
Drainage Opening
Battery charging
contacts
Belt clip

E-5Uniden Atlantis 275 Radio Owner’s Manual
Key Press to... Press and hold to...
/ 
In Channel mode,
moves up or down one
channel at a time.
In Volume mode,
increases or decreases
volume one step at a
time.
In Squelch mode, raises
and lowers squelch
settings.
In Channel mode,
moves quickly up or
down the channels.
In Volume mode,
quickly increases or
decreases volume.
In Squelch mode,
quickly raises and
lowers squelch
settings.
Push to
Talk NA Transmit on a channel
6W/
BOOST NA Boost transmission power to 6W.
16/9 TRI
1st press: Go to channel
16.
2nd press: Go to
channel 9.
3rd press: Go back to
the starting channel.
Turn Triple Watch on
and off.
MEM
SOS
Save a channel into
memory or delete a
channel from memory.
1st press: Morse Code

2nd press: Changes to
Flashlight mode.
3rd press: Turns off
light.
ALERT
WX
Listen to the weather
channels. Turn Weather Alert Watch on and off.
VOL SQL
Enter Volume Setting
mode. Use and 
to raise and lower the
volume (Levels = 0 -
15).
Enter Squelch Setting
mode. Use and
to raise and lower
the squelch settings
(Levels = 0 - 3).

E-6 Uniden Atlantis 275 Radio Owner’s Manual
Key Press to... Press and hold to...
SCN
DUAL
Start scanning the
channels saved in
memory.

and off.
/
Press to change the
backlight’s color and
brightness.
Turn the radio on and
off.
H/M/L Change the transmit
power (page E-16). NA
Lock UIC Lock the keys; press
again to unlock.
Switch between
US, Canadian, or
International channels.
Charger
READING THE DISPLAY

shows different
information
depending on what
you are doing. This
sample screen
shows some of this
information. The
table below shows
all the possible
icons and what they
mean.
Charging
contacts
Screw holes
for mounting
Charge LED
Triple or Dual
Watch is on
Battery
status icon
The radio is
transmitting
Transmit power level
(6, 2.5, or 1 Watts)
UIC channel mode
(CANada, USA, or
INTernational)
WX Mode is
enabled
VOL and SQL display when
the Volume or Squelch
modes are active
10
20
B
A
Prexes for certain
channel numbers
(1079, 2079, etc)
WX Alert Watch
Mode is enabled
This channel is
saved in memory
Current Channel
Number
Key Lock is
active Scan Mode is
active
A, B: Canadian channels
(21B, 22A etc.)

E-7Uniden Atlantis 275 Radio Owner’s Manual
Display icons and what they mean
Icon What it means
You are currently transmitting.
, , or The transmitter power is set to 6 Watts,

, , or
The radio is set to use CANadian
channels, US channels, or INTernational
channels.
The radio is in Weather mode.
or 
on.
The keys are locked (Key Lock function
is on).
The current channel is saved in memory.
The radio is in Scan mode.
10
20
Indicates if channel numbers have
leading 10 or 20 (1078, 2078).
Weather Alert Watch is turned on.

charged to empty.

on.

on.
B
A
A, B = Canadian Channels (21B, 22A,
etc)

E-8 Uniden Atlantis 275 Radio Owner’s Manual
HOW IT WORKS
Your radio has three main operation modes: normal, scan,
and weather.
Mode What it does Use it when
you want to... To turn it on/off
Normal
Monitors a single
marine channel and
lets you talk on that
channel.
Monitor a
channel or
talk to another
radio.
(default
mode)
Scan Monitors all the channels you save
into memory.
Check a small
group of
regularly-used
channels for

Press
SCN
DUAL
Weather Monitors the 
weather channel.
Hear the current
or forecasted
weather.
Press
ALERT
WX.
In addition to the three operation modes, your radio provides
four different watch modes which you can activate during any


operation.
Watch
mode What it does To turn it on/off
Weather
Alert Watch
Checks the last-used
weather channel for
hazard alerts every 7
seconds.
Press and hold
ALERT WX for 2
seconds.
 Checks channel 16 for
activity every 2 seconds. Press and hold SCN DUAL for 2 seconds.
Triple
Watch
Checks channels 16
and 9 for activity every 2
seconds.
Press and hold 16/9
Tri for 2 seconds.
#

E-9Uniden Atlantis 275 Radio Owner’s Manual


NORMAL MODE OPERATION
xTo transmit, remove the radio from the charger, then
press and hold the Push to Talk key. Release the key

xFor the best sound quality, hold the microphone about
two inches from your mouth while you’re talking.
xPress the key to move up one channel at a time. Press
and hold the key to scroll quickly up the channels.
xPress the key to move down one channel at a time.
Press and hold the key to scroll quickly down the
channels.
xTo change the transmit power, press the H/M/L key. The
transmit power switches to the next transmit power each
time you press this key.
Normal mode with Weather Alert Watch
If you activate Weather Alert Watch while operating in normal
mode, the radio
checks the most
recently used
weather channel
every seven
seconds. If it detects
a weather or other
hazard alert, it will
switch to that
weather channel. (If
you are transmitting or receiving an active transmission, the

transmission before checking the weather channel.)
wx
Every few seconds, the
radio checks the last-used
weather channel.
WX Alert
Watch on
Monitoring Channel 25

E-10 Uniden Atlantis 275 Radio Owner’s Manual
Normal mode with Triple Watch or Dual Watch
If you activate Triple Watch while operating in normal mode,
the radio checks channels 9 and 16 every two seconds
and then returns to the current MRN or WX channel; with

before returning to the current MRN or WX channel. The
radio will not check channels 9 or 16 while you are actively

then checks the channels.
SCAN MODE OPERATION
You can save channels into memory and then use scan
mode to monitor those channels from lowest to highest. If the
radio detects a signal on a channel, it stays on that channel
as long as the signal is received; when the signal stops, the
radio continues scanning.
09
16
Every few seconds, the radio
checks channels 16 & 9.
Triple Watch on
09
16
09
16
Monitoring Channel 25
111008 1312 14 17
15
The radio scans about
5 channels in 0.5 seconds.
When it detects a signal, the radio stays
on the channel until you press the or
button or the signal stops. Resume
scan

E-11Uniden Atlantis 275 Radio Owner’s Manual
Using the radio in scan mode
xTo activate scan mode, press SCN DUAL.
xYou must have at least two channels in memory to start
a scan.
xYou cannot transmit while in scan mode.
xTo save a channel into memory, select the channel,
then press the MEM SOS key. The
MEM icon displays
whenever you tune to that channel.
xTo remove a channel from memory, set the radio to that
channel, then press the MEM SOS key. The MEM icon
no longer displays.
xWhen the radio stays on a channel, press to leave that
channel and resume scanning.
xPressing 16/9 TRI while in Scan mode pauses scanning
and immediately goes to emergency channel 16. Press
again to go to channel 9. Press a third time to resume
scanning.
xTo end the scan, press the SCN DUAL key again; the
radio remains on the last scanned channel.
#

Scan mode with Weather Alert Watch
If you activate Weather Alert Watch while in scan mode, the
radio checks the most recently-used weather channel every
seven seconds, then continues scanning the next channel in
memory:
Every few seconds, the radio
checks the last-used weather
channel, then scans the next
channel. wx
WX Alert
Watch on
Memory Channel Scan
08 252417151413121110 20

E-12 Uniden Atlantis 275 Radio Owner’s Manual
Scan mode with Triple Watch or Dual Watch
If you activate Triple Watch while operating in scan mode,
the radio checks channels 9 and 16 every two seconds, then

on, the radio only checks channel 16:
WEATHER MODE

you of other hazards besides weather (child abduction alerts,
nuclear, biological, etc.). In weather mode, the radio monitors

is received, the radio sounds an alert tone and the display
blinks.
Using the radio in weather mode
xYou cannot transmit while in weather mode.
xTo enter weather mode, press the ALERT WX key.
xTo turn off the radio’s alert tone, press any key.
xTo cancel weather mode and return to the previous
marine channel, press the ALERT WX key again.
Weather mode with Weather Alert Watch
Because weather mode already monitors the weather
channels, you don’t need Weather Alert Watch to check
the weather channel every seven seconds. If you activate
Weather Alert Watch while operating in weather mode,
it operates as a type of “sleep mode”: the radio stays on
the weather channel and mutes the speaker. If an alert
Every few seconds, the
radio checks channels
16 & 9, then scans the
next channel. Triple
Watch on
09
16
Memory Channel Scan
08 252417151413121110 20

E-13Uniden Atlantis 275 Radio Owner’s Manual
is detected, the radio sounds an alert tone and turns the
speaker back on. This mode is very useful when you are
anchoring for the night but want to keep informed of hazards.
Weather mode with Triple Watch or Dual Watch
If you activate Triple
Watch while operating
in weather mode, the
radio checks channels
9 and 16 every two

Watch turned on, the
radio only checks
channel 16.
SETTING UP THE HARDWARE
MOUNTING THE CHARGER

or vertically (horizontal mounting shown).
1. Use the two holes at the base of the charger
as a template to mark the drill holes.
2. 

3. Use the provided screws to attach the
charger to the surface.
CHARGING THE BATTERY
Your radio includes a charger and an internal
rechargeable battery. Place your radio
in the charger with the display facing forward.

charger turns orange.
0916 0916
Every few seconds, the radio checks
channel 16, then c.hannel 9.
with Triple Watch on
0916
0916
Monitoring Weather Channel WX08

E-14 Uniden Atlantis 275 Radio Owner’s Manual

xUse only the charger supplied with this radio. Using a
different charger or battery can damage the radio and

xThe charger is not waterproof. If the charger falls into
the water, unplug it before attempting to remove it
from the water. After you remove the charger from the
water, visit www.uniden.com for assistance.
xWipe off dirt or shake water from your radio before
placing in the charger if your radio gets dirty or wet.

xCharge the battery fully before using the radio. When the

green.
x
below 41° F (5° C) or above 104° F (40° C).
xIf the radio is powered down, the battery can charge in

takes longer to charge.)
INSTALLING AND REMOVING THE BELT CLIP
To install the belt clip:
Slide the belt clip down over the latch until you hear it click.
To remove the belt clip:
1. 
2. Slide the clip up until it comes free of the latch.
USING YOUR RADIO
CHANGING THE VOLUME
To increase the speaker volume, press the VOL SQL key.
The screen displays
VOL and a volume level number. Use