Uniden America UT625 Handy Marine Radio User Manual
Uniden America Corporation Handy Marine Radio Users Manual
Users Manual
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| Document ID | 1011007 |
| Application ID | jvBlXOcKbqSShm5wwj7ULA== |
| Document Description | Users Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 216.32kB (2703991 bits) |
| Date Submitted | 2008-10-03 00:00:00 |
| Date Available | 2008-10-22 00:00:00 |
| Creation Date | 2008-08-13 17:30:16 |
| Producing Software | Acrobat Distiller 5.0 (Windows) |
| Document Lastmod | 2008-08-13 17:30:16 |
| Document Title | Users Manual |
MHS75
VHF MARINE RADIO
OWNERâS MANUAL
GUIDE DâUTILISATION
RADIO VHF MARITIME
Making a Distress Call
For future reference, write your boatâs name & call sign here:
Speak slowly -- clearly -- calmly.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Make sure your radio is on.
Press the 16/9-Tri button to switch to Channel 16 (156.800
MHz). (If the corner of the display does not show 16, press
the 16/9-Tri button again until it does.)
Press the Push to talk button and say,
âMAYDAY --MAYDAY-- MAYDAY.â
Say, âTHIS IS {name or call sign of your boat}.â
Say, âMAYDAY{name or call sign of your boat}.â
Tell where you are (what navigational aids or land-marks
are near, or give your position from a GPS).
State the nature of your distress (e.g. sinking, medical
HPHUJHQF\PDQRYHUERDUGÂżUHDGULIWHWF
Give the number of persons aboard and describe the
condition of any injured persons.
Estimate present seaworthiness of your ship (e.g. how
LPPHGLDWHLVWKHGDQJHUGXHWRĂRRGLQJRUÂżUHRUSUR[LPLW\
to shore).
%ULHĂ\GHVFULEH\RXUVKLS OHQJWKW\SHFRORUKXOO
Say, âI WILL BE LISTENING ON CHANNEL 16.â
End message by saying,
âTHIS IS {name or call sign of your boat} OVER.â
Release the Push to talk button and listen for a response.
If you do not get an answer after 30 seconds, repeat
your call, beginning at step 3, above.
Table of Contents
Making a Distress
Call ................ (inside front cover)
Introduction................................ E-1
Features ...................................... E-1
Getting Started........................... E-2
Whatâs included ........................... E-2
Parts of the MHS75 ..................... E-3
Front view................................... E-3
Back view................................... E-3
DC Charger ................................ E-4
Reading the display..................... E-5
Display icons and what they
mean ...................................... E-5
How It Works.............................. E-6
Normal mode operation............... E-7
Normal mode with Weather Alert
Watch..................................... E-7
Normal mode with Triple Watch or
Dual Watch............................. E-8
Normal mode with Quad Watch . E-8
Scan mode operation .................. E-9
Using the radio in scan mode .... E-9
Scan mode with Weather Alert
Watch................................... E-10
Scan mode with Triple Watch or
Dual Watch........................... E-10
Both Weather Alert and Triple/Dual
Watch in scan mode............. E-10
Weather mode ............................E-11
Using the radio in weather
mode .....................................E-11
Weather mode with Weather Alert
Watch....................................E-11
Weather mode with Triple Watch
or Dual Watch ...................... E-12
Setting Up the Hardware......... E-12
Attaching the antenna................ E-12
Installing the battery .................. E-12
Charging the battery.................. E-13
Connecting the charger............ E-13
Important notes on charging the
battery .................................. E-13
Disconnecting the charger ....... E-14
Attaching the belt clip ................ E-14
Using Your Radio..................... E-15
Changing the volume ................ E-15
Setting the squelch level............ E-15
Changing the channel................ E-15
Making a transmission............... E-16
Boosting the transmission
power ................................... E-16
Setting the UIC channel mode... E-17
Maintenance and
Troubleshooting.................... E-17
Common questions.................... E-17
6SHFLĂFDWLRQV .......................... E-18
Channels and Frequencies........ E-19
US channel frequencies and
names .................................. E-19
Canadian channel frequencies and
names .................................. E-21
International channel frequencies
and names ........................... E-23
Weather channel frequencies and
names .................................. E-25
Regulations and Safety
Warnings................................ E-26
Maritime radio services
operation................................. E-26
Basic radio guidelines................ E-26
FCC/Industry Canada
information .............................. E-27
FCC RF exposure information... E-27
Lithium ion battery warning........ E-28
Three Year Limited Warranty
Statement .............................. E-29
Uniden MHS75 Radio Ownerâs Manual
Introduction
Features
The MHS75 provides the following key features:
 Submersible design
Complies with JIS8/IPX8 water-resistant standards, which
means the radio can be submerged in 1.5 meters of water
for 30 minutes without damage.
 Memory scan mode
Lets you save channels to memory and monitor them in
quick succession.
 Transmitter power level select
Lets you boost the transmitter power from 1 Watt to 2.5 or
5 Watts for added transmission distance.
 Battery level display and low battery alert.
 Dual, Triple and Quad Watch operation
These different watch modes let you monitor up to two
Coast Guard Distress/Hailing channels and one weather
channel along with one regular marine channel.
 All marine VHF channels for the U.S., Canada, and
international waters
 National Oceanic and Atmospheric Administration
(NOAA) weather channel watch
Sounds a warning tone when a hazard alert is issued.
Uniden MHS75 Radio Ownerâs Manual
E-1
Getting Started
Whatâs included
MHS75 Radio
Antenna
DC Charger
Lithium Ion Battery
Belt Clip
Wrist Strap
If any pieces are missing or damaged, contact Uniden
Customer Service (see back cover for contact information).
For information on available accessories, visit
www.uniden.com.
E-2
Uniden MHS75 Radio Ownerâs Manual
Parts of the MHS75
Squelch knob
(Turn clockwise to
decrease channel
noise.)
Front view
Volume-power
knob
(Turn clockwise
to increase
volume.)
Antenna
LCD display
WX-Alert
(weather-alert)
button
Wrist strap
anchor
Push to talk
button
UIC-Lock button
16/9-Tri
(16/9- triple
watch) button
Channel up
button
Scan-Dual
(scan-dual
watch) button
1/5W-2.5W
button
Channel down
button
Mem (memory)
button
Microphone
Speaker
Back view
Battery Battery charging Battery
latch
contacts
Belt clip
Uniden MHS75 Radio Ownerâs Manual
E-3
Knob
VolumePower
Squelch
Turn clockwise to...:
Turn on the radio or
increase the volume.
Raise the squelch level
to reduce channel noise.
Turn counter-clockwise to...:
Decrease the volume or turn off
the radio.
Lower the squelch level to hear
weaker signals.
Button
Press to...
Push to talk NA
1st press: Go to channel 16.
2nd press: Go to channel 9.
16/9-Tri
3rd press: Go back to the
starting channel.
Save a channel into memory
Mem
or delete a channel from
memory.
Switch from US to Canadian
UIC-Lock
or international channels.
Move up one channel at a
Channel Up
time.
Channel Move down one channel at
Down
a time.
Listen to the weather
WX-Alert
channels.
Start scanning the channels
Scan-Dual
saved in memory.
Switch the transmit power
1/5W-2.5W
between 1 Watt and 5 Watts.
DC Charger
oPewr EDL
Press and hold to...
Transmit on a channel
Turn Triple Watch on and
off.
NA
Lock the keys; press and
hold again to unlock.
Move quickly up the
channels.
Move quickly down the
channels.
Turn Weather Alert Watch
on and off.
Turn Dual Watch on and
off.
Change the transmit power
to 2.5 Watts.
Battery charging contacts
12VDCc(âigarette
lighterâ)lpug
Release tabs
E-4
Uniden MHS75 Radio Ownerâs Manual
Reading the display
The LCD 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.
The radio is
transmitting
Battery
status icon
Transmit
power level
(1, 2.5, or 5
Watts)
88
Key lock
is on
UIC channel mode
(USA, CANada, or
INTernational)
Triple
radio
Watch is The
is
in
scan
on
mode
Current
channel
number
This channel
is stored in
memory.
Weather
Alert Watch
is on.
Display icons and what they mean
Icon
What it means
You are currently transmitting.
, or
, or
or
The transmitter power is set to 1 Watt, 5 Watts, or
2.5 Watts.
The keys are locked.
The radio is set to use US channels, CANadian
channels, or INTernational channels.
TRIple Watch or DUAL Watch is turned on.
The current channel is saved in memory.
The radio is in Scan mode.
The radio is in Weather Mode
Weather Alert Watch is turned on.
The battery is fully charged, mostly charged, half
charged, mostly empty, or completely empty.
Uniden MHS75 Radio Ownerâs Manual
E-5
How It Works
The MHS75 radio has three main operation modes: normal
mode, scan mode, and weather mode.
Mode
What it does
Use it when you
want to...:
Monitors a single marine
Normal
Monitor a channel or
channel and lets you talk
mode
talk to another radio.
on that channel.
Check a small group
Scan
Monitors all the channels
of regularly-used
mode
you save into memory.
FKDQQHOVIRUWUDIÂżF
You want to hear the
Weather Monitor the selected
current or forecasted
mode
NOAA weather channel.
weather.
To turn it
on/off
(default
mode)
Press ScanDual.
Press WXAlert.
In addition to the three operation modes, the MHS75
provides four different watch modes which you can activate
during any operation mode. In the watch modes, the radio
EULHĂ\FKHFNVIRUDFWLYLW\RQDVSHFLÂżFFKDQQHOWKHQUHWXUQV
to its previous operation.
Watch mode
What it does
Checks the last-used weather
Weather Alert
channel for hazard alerts
Watch
every 7 seconds.
Checks channel 16 for activity
Dual Watch
every 2 seconds.
Checks channels 16 and 9 for
Triple Watch
activity every 2 seconds.
Checks channels 16 and 9 for
activity every 2 seconds, and
Quad Watch
checks the last-used weather
channel every 7 seconds.
To turn it on/off
Press and hold WX-Alert
for 2 seconds.
Press and hold ScanDual for 2 seconds.
Press and hold 16/9-Tri
for 2 seconds.
Turn on Triple Watch,
then turn on Weather
Alert Watch.
Note: Private boats must monitor channel 16 whenever they are underway. Water-going vessels should
have either Triple Watch or Dual Watch on at all times.
E-6
Uniden MHS75 Radio Ownerâs Manual
Normal mode operation
 To transmit, remove the radio from the charger, then press
and hold the Push to Talk button. Release the button
ZKHQ\RXDUHÂżQLVKHGWDONLQJ
 For the best sound quality, hold the microphone about two
inches from your mouth while youâre talking.
 Press the Channel Up button to move up one channel at
a time. Press and hold the button to scroll quickly up the
channels.
 Press the Channel Down button to move down one
channel at a time. Press and hold the button to scroll
quickly down the channels.
 To change the transmit power, press the 1/5W-2.5W
button. The transmit power switches between 1 Watt and 5
Watts each time you press the 1/5W-2.5W button.
 To change the transmit power to 2.5 Watts, press and
hold the 1/5W-2.5W button for 2 seconds. Press and hold
the button again to change back to the previous transmit
power (either 1 Watt or 5 Watts).
Normal mode with Weather Alert Watch
If you activate Weather Alert Watch while operating in normal
mode, the radio
Monitoring Channel 25
checks the most
recently used
weather channel
every seven seconds.
If it detects a weather
Every 7 seconds,
or other hazard alert,
the radio checks wx
it will switch to that
the last-used
weather channel. (If
weather channel.
you are actively
WX Alert
transmitting, the radio
Watch on
ZDLWVXQWLO\RXÂżQLVK
your transmission before checking the weather channel.)
Uniden MHS75 Radio Ownerâs Manual
E-7
Normal mode with Triple Watch or Dual Watch
If you activate Triple Watch while operating in normal mode,
the radio checks channels 16 and 9 every two seconds; with
Dual Watch turned on, the radio only checks channel 16. The
radio will not check channels 16 or 9 while you are actively
WUDQVPLWWLQJ LWZDLWVXQWLO\RXUWUDQVPLVVLRQLVÂżQLVKHGDQG
then checks the channels.
Monitoring Channel 25
09 16
09 16
Every 2 seconds, the radio
checks channels 9 & 16.
09 16
Triple Watch on
Normal mode with Quad Watch
You can activate Weather Alert Watch and Triple Watch at
the same time to monitor four channels at once (Quad
Watch). The radio performs the Triple Watch and Weather
Alert Watch checks at their scheduled time:
Monitoring Channel 25
09 16
09 16
09 16
Every 2 seconds, the radio
Every 7 seconds,
checks channels 9 & 16.
the radio checks wx
the last-used
Triple Watch on
weather channel.
WX Alert
Watch on
E-8
Uniden MHS75 Radio Ownerâs Manual
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.
When it detects a signal, the radio stays
on the channel until you press the
Channel Up button or the signal stops.
08
10
11
12
13
Resume
scan
14
15
17
The radio scans about
5 channels in 0.5 seconds.
Using the radio in scan mode
 To activate scan mode, press Scan-Dual.
 You must have at least two channels in memory to start a
scan.
 You cannot transmit while in scan mode.
 To save a channel into memory, select the channel, then
press the Mem button. The Mem icon shows on the display
whenever you tune to that channel.
 To remove a channel from memory, set the radio to that
channel, then press the Mem button. The Mem icon no
longer shows on the display.
 When the radio stays on a channel, press Channel Up to
leave that channel and resume scanning.
 To end the scan, press the Scan-Dual button again; the
radio remains on the last scanned channel.
Uniden MHS75 Radio Ownerâs Manual
E-9
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:
Memory Channel Scan
08
10
11
12
13
14 15 17 20 24 25
Every 7 seconds, the radio
checks the last-used
weather channel, then
scans the next channel.
wx
WX Alert
Watch on
Scan mode with Triple Watch or Dual Watch
If you activate Triple Watch while operating in scan mode,
the radio checks channels 16 and 9 every two seconds, then
goes on to scan the next channel; with Dual Watch turned
on, the radio only checks channel 16:
Memory Channel Scan
08 10 11 12 13 14
Every 2 seconds, the
radio checks channels
9 & 16, then scans
the next channel.
09 16
Triple
15
17
20
24
25
Watch on
Both Weather Alert and Triple/Dual Watch in scan mode
You can activate Weather Alert Watch and Triple/Dual Watch
at the same time. The radio performs both checks at their
scheduled time:
E-10
Uniden MHS75 Radio Ownerâs Manual
Memory Channel Scan
08 10 11 12 13 14 15 17 20 24 25
Every 2 seconds, the
Every 7 seconds, the radio
radio checks channels
checks the last-used
9 & 16, then scans
weather channel, then
the next channel.
scans the next channel.
09
16
Triple
WX Alert wx
Watch on
Watch on
Weather mode
The NOAA weather channels now cooperate with the FCC to
alert you of other hazards besides weather (child abduction
alerts, nuclear, biological, etc.). In weather mode, the radio
monitors one of the ten NOAA weather channels. If any type
of alert is received, the radio sounds an alert tone and the
display blinks.
Using the radio in weather mode
 You cannot transmit while in weather mode.
 To enter weather mode, press the WX-Alert button.
 To turn off the radioâs alert tone, press any button.
 To cancel weather mode and return to the previous marine
channel, press the WX-Alert button again.
Weather mode with Weather Alert Watch
Because weather mode already monitors the weather
channels, you donât 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 âsleep modeâ: the radio stays on
the weather channel and mutes the speaker. If an alert
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.
Uniden MHS75 Radio Ownerâs Manual
E-11
Weather mode with Triple Watch or Dual Watch
If you activate Triple
Monitoring Weather Channel WX08
Watch while operating
in weather mode, the
radio checks channels
09 16
09 16
09 16
16 and 9 every two
Every 2 seconds, the radio checks
seconds; with Dual
channel 9, then channel 16
Watch turned on, the
with Triple Watch on
radio only checks
channel 16.
Setting Up the Hardware
Attaching the antenna
The antenna detaches from the radio for easy
shipping or storage. To attach the antenna to
your radio, screw it tightly onto the anchor
post at the top of the radio.
Installing the battery
Your MHS75 comes with a rechargeable Lithium Ion battery;
for shipping safety, the battery is not installed at the factory.
1. Insert the hook on
the battery into
the notch at the
top of the
battery
compartment.
Rubber
Note: Each
seal
time you
remove the battery, check the rubber seal around the
battery compartment. Make sure the seal is seated in the
groove and there is no dirt or debris on it. If the seal
looks worn or damaged, contact customer service to
order a replacement (see back cover page for contact
information).
E-12
Uniden MHS75 Radio Ownerâs Manual
2. Lower the battery until it rests
ĂDWLQWKHFRPSDUWPHQW
3. Bring the battery latch up and
snap it into place.
Charging the battery
Connecting the charger
Align the charger with the
battery (on the rear side
of the radio). Slide the
radio into the charger
until it clicks into place.
Connect the other end
of the charger to any standard 12 volt DC âcigarette lighterâ
style outlet. The power LED on the top of the plug should
turn orange and remain lit.
CAUTION: If the LED blinks, immediately disconnect
the charger from the DC outlet. Reseat the radio in the
charger before reconnecting the charger to power.
CAUTION: Use only the battery and charger supplied
with this radio. Using a different charger or battery can
GDPDJHWKHUDGLRDQGFUHDWHDULVNRIÂżUHRUVKRFN
Important notes on charging the battery
 Charge the battery fully before using the radio.
 When the battery is completely charged, the power LED
turns green.
 Donât use the charger when the ambient temperature is
below 0Âş C (32Âş F) and 45Âş C (113Âş F).
 If the radio is powered down, the battery can charge in
about three and a half hours. (If the radio is powered on,
the battery takes longer to charge.)
 If the battery is empty, the radio canât transmit, even if itâs
in the charger.
Uniden MHS75 Radio Ownerâs Manual
E-13
 Be careful moving the charger cord. If you have to move
WKHFRUGZKLOHWKHUDGLRLVFKDUJLQJSLFNXSWKHUDGLRÂżUVW
so you donât drop it.
Disconnecting the charger
Squeeze in on the release tabs
at the base of the charger, and
slide the radio out.
Attaching the belt clip
To attach the belt clip:
1. Rotate the belt clip so that the
ÂżQJHULQGHQWDWLRQLVWRZDUGVWKH
top of the radio.
2. Align the center of the clip with
the anchor post.
3. Place the clip on the post
and slide the clip upwards
until it clicks into place.
To remove the belt clip:
1. Rotate the clip so that
WKHÂżQJHULQGHQWDWLRQLV
towards the bottom of the radio.
2. Slide the clip up until it comes free of the anchor post.
E-14
Uniden MHS75 Radio Ownerâs Manual
Using Your Radio
Changing the volume
To increase the speaker volume, turn the Volume-Power
knob clockwise; turn it counter-clockwise to decrease the
volume.
Setting the squelch level
The squelch feature
reduces static on the
Strong signals
VSHDNHUE\ÂżOWHULQJ
out any background
Weak signals
channel noise. At the
lowest squelch level,
the speaker plays all
Noise
signals, including any
channel noise.
Setting the squelch
Medium
High
No
OHYHOKLJKHUÂżOWHUVRXW
Squelch
Squelch
Squelch
noise and lets only
actual radio
transmissions through.
While listening to a channel, adjust the SQUELCH knob until
WKHQRLVHLVÂżOWHUHGDQG\RXFDQKHDURQO\WKHWUDQVPLVVLRQ
If you switch to a channel with a lot of noise or a weak transmission, you may need to readjust the squelch level again.
Note: Setting the squelch level too high may prevent
you from hearing weaker transmissions. If you are
KDYLQJGLIÂżFXOW\KHDULQJDWUDQVPLVVLRQWU\VHWWLQJWKH
squelch level lower.
Changing the channel
Press the Channel Up and Channel DownEXWWRQVEULHĂ\WR
scroll through the channels one channel at a time. Press and
hold the Channel Up or Channel Down button to quickly
scroll through the channels.
Uniden MHS75 Radio Ownerâs Manual
E-15
Making a transmission
Select the channel you want to transmit on, then press and
hold the Push to Talk button. Release the Push to Talk
EXWWRQZKHQ\RXÂśUHÂżQLVKHGWDONLQJWROHWWKHRWKHUSDUW\
respond.
 To prevent stuck microphone problems or situations where
the Push to Talk button is pushed accidentally, the radio
limits your talk time to 5 minutes in a single transmission.
 For the best sound quality, hold the microphone about two
inches away from your mouth.
 See the channel lists starting on page 19 for a list of
receive-only channels.
Boosting the transmission power
In most situations, the 1 Watt transmission power is all you
QHHG,I\RXÂżQG\RXUVHOIIDUDZD\IURPRWKHUVWDWLRQVDQG
have trouble getting a response, you may need to boost the
transmission power from 1 Watt to 2.5 Watts or 5 Watts:
 Press the 1/5W-2.5W button to switch from 1 Watt to 5
Watts. Press the button again to switch back to 1 Watt.
 To switch to 2.5 Watts, press and hold the 1/5W-2.5W
button for about two seconds. Press and hold the button
again to switch back to 1 Watt or 5 Watts (whichever you
were on when you switched to 2.5 Watts).
 The transmit power remains at the new setting until you
change it again. The transmit power icon always shows the
current transmission power.
Note: Donât forget to change the transmission setting
back to 1 Watt when you move close to other stations.
 Some channels (for example, channels 13 and 67) limit
the transmission power to 1 Watt. When you tune to a
limited-power channel, the radio automatically switches to
1 Watt. See the channel lists starting on page 19 for a list
of power-restricted channels.
E-16
Uniden MHS75 Radio Ownerâs Manual
Setting the UIC channel mode
The radio comes preset to use the channels assigned for
the US. If your current area uses Canadian or international
channel assignments, press the UIC-Lock key to rotate
through the US, Canadian, and international channels.
Maintenance and Troubleshooting
Due to its rugged design, the MHS75 requires very little
maintenance. However, it is a precision electronic instrument,
so you should follow a few precautions:
 If the antenna has been damaged, do not transmit except
in an emergency situation. Transmitting with a defective
antenna may cause further radio damage.
 You are responsible for continued FCC technical
compliance of your radio.
 You should arrange for periodic performance checks with
your Uniden dealer.
Common questions
Problem
Things to Try
The radio wonât turn on. Charge the battery.
â Replace the fuse inside the charger. (Contact
The power LED on the
customer service for a replacement fuse and
charger doesnât turn on. instructions on changing it.
â Replace the battery.
â Make sure you are not in weather or scan
mode.
â Make sure you are not trying to transmit on a
receive-only channel or transmit at the wrong
power level for this channel (see the channel
The radio wonât
lists starting on page 19).
transmit.
â Check the battery power level; if itâs low,
charge the battery before trying to transmit.
â Make sure the duration of each transmission
is less than 5 minutes.
Uniden MHS75 Radio Ownerâs Manual
E-17
Problem
I canât hear anything
from the speaker.
Noise comes out of the
speaker all the time
I can transmit, but no
one can hear me.
Iâm not getting hazard
alerts.
Things to Try
Adjust the squelch level; it is probably too high.
Adjust the squelch level; it is probably too low.
Check your UIC channel settings: does the area
you are in use different channel assignments?
Make sure Weather Alert Watch is turned on.
7KHFKDQQHOQXPEHURQWKHGLVSOD\ZLOOĂDVKLI
7KHGLVSOD\ĂDVKHV the radio is in a watch mode or in scan mode.
and I donât know why. Try turning off scanning, Weather Alert Watch,
Triple Watch, or Dual Watch (see page 6).
:KHUHFDQ,ÂżQGP\ The serial number is on a plate inside the
radioâs serial number? battery compartment.
6SHFLÂżFDWLRQV
General
Channels
Freq. Control
Freq. Tol.
Oper. Temp.
Antenna
Microphone
Display
Speaker
Power Source
Size (without antenna)
Weight
E-18
All US/International/Canada marine
channels
10 Weather channels
PLL
Transmit: 1.5 PPM (at 25°C)
Receive: 1.5 PPM (at 25°C)
-4°F (-20°C) to +122°F(+50°C)
Flexible Whip
Built-in Electret type
Liquid Crystal Display
Â:DWW
Rechargeable Lithium Ion Battery
7.4V 1040 mAh
4.57 (H) x 2.49 (W) x 1.53 (D) inch
116.2 (H) x 63.3 (W) x 39 (D) mm
10.2 oz (290g) (w/battery and antenna)
Uniden MHS75 Radio Ownerâs Manual
Transmitter
Frequency Range
Frequency Stability
Power Output
Spurious Emissions
Current Drain
156~158 MHz
Âą10 PPM
1.0 W & 2.5W & 5W
70 dBc
1400 mA (5W)
Receiver
Double Conversion Super Heterodyne
Type
Phase Locked Loop system for Local
Oscillator
Frequency Range
156~164 MHz
Sensitivity
Č9IRUG%6,1$'
Squelch Sensitivity
7KUHVKROGČ9
Audio Frequency Response +5 dB @ 500 Hz; -6 dB @ 2000Hz
Adjacent Channel Selectivity 75 dB @ Âą25 kHz
Audio Output Power
0.4 W @10% THD
Current Drain
Squelched: 55 mA; Max. Audio: 210 mA
Channels and Frequencies
US channel frequencies and names
Ch
1A
5A
7A
10
11
12
13
RX Freq
156.050
156.250
156.300
156.350
156.400
156.450
156.500
156.550
156.600
156.650
TX Freq
156.050
156.250
156.300
156.350
156.400
156.450
156.500
156.550
156.600
156.650
US Marine Channels
Status
Name
Simplex 9HVVHOWUDIÂżFV\VWHPFRPPHUFLDO
Simplex 9HVVHOWUDIÂżFV\VWHPFRPPHUFLDO
Simplex Inter-ship safety
Simplex Commercial
Simplex Commercial
Simplex Non commercial
Simplex Commercial
Simplex 9HVVHOWUDIÂżFV\VWHP
Simplex 9HVVHOWUDIÂżFV\VWHP
Simplex, 1W Bridge to bridge
Uniden MHS75 Radio Ownerâs Manual
E-19
Ch
14
15
16
17
18A
19A
20
20A
21A
22A
23A
24
25
26
27
28
63A
65A
66A
67
68
69
70
71
72
73
74
75
76
77
78A
E-20
RX Freq
156.700
156.750
156.800
156.850
156.900
156.950
161.600
157.000
157.050
157.100
157.150
161.800
161.850
161.900
161.950
162.000
156.175
156.275
156.325
156.375
156.425
156.475
156.525
156.575
156.625
156.675
156.725
156.775
156.825
156.875
156.925
TX Freq
156.700
Inhibit
156.800
156.850
156.900
156.950
157.000
157.000
157.050
157.100
157.150
157.200
157.250
157.300
157.350
157.400
156.175
156.275
156.325
156.375
156.425
156.475
Inhibit
156.575
156.625
156.675
156.725
156.775
156.825
156.875
156.925
US Marine Channels
Status
Name
Simplex 9HVVHOWUDIÂżFV\VWHP
Receive only Environmental
Simplex Distress, safety, and calling
Simplex, 1W Govt maritime control
Simplex Commercial
Simplex Commercial
Duplex Port operation
Simplex Port operation
Simplex Coast guard only
Simplex Coast guard
Simplex Coast guard only
Duplex Marine operator
Duplex Marine operator
Duplex Marine operator
Duplex Marine operator
Duplex Marine operator
Simplex 9HVVHOWUDIÂżFV\VWHP
Simplex Port operation
Simplex Port operation
Simplex, 1W Bridge To Bridge
Simplex Non Commercial
Simplex Non Commercial
Receive only Digital Selective Calling
Simplex Non Commercial
Simplex Non Commercial (Ship-Ship)
Simplex Port Operation
Simplex Port Operation
Simplex, 1W Port Operation
Simplex, 1W Port Operation
Simplex, 1W Port Operation (Ship-Ship)
Simplex Non Commercial
Uniden MHS75 Radio Ownerâs Manual
Ch
79A
80A
81A
82A
83A
84
85
86
87A
88A
RX Freq
156.975
157.025
157.075
157.125
157.175
161.825
161.875
161.925
157.375
157.425
TX Freq
156.975
157.025
157.075
157.125
157.175
157.225
157.275
157.325
157.375
157.425
US Marine Channels
Status
Name
Simplex Commercial
Simplex Commercial
Simplex Coast Guard
Simplex Coast Guard
Simplex Government
Duplex Marine Operator
Duplex Marine Operator
Duplex Marine Operator
Simplex Marine Operator
Simplex Commercial (Ship-Ship)
Canadian channel frequencies and names
Ch
4A
5A
7A
10
11
12
13
14
15
16
17
RX Freq
160.650
160.700
160.750
156.200
156.250
156.300
156.350
156.400
156.450
156.500
156.550
156.600
156.650
156.700
156.750
156.800
156.850
Canadian Marine Channels
TX Freq Status
Name
156.050
Duplex Marine Operator
156.100
Duplex Marine Operator
156.150
Duplex Marine Operator
156.200 Simplex Canadian Coast Guard
156.250 Simplex 9HVVHO7UDIÂżF6\VWHP
156.300 Simplex Inter-Ship Safety
156.350 Simplex Commercial
156.400 Simplex Commercial
156.450 Simplex Boater Calling Channel
156.500 Simplex Commercial
156.550 Simplex 9HVVHO7UDIÂżF6\VWHP
156.600 Simplex 9HVVHO7UDIÂżF6\VWHP
156.650 Simplex, 1W Bridge To Bridge
156.700 Simplex 9HVVHO7UDIÂżF6\VWHP
156.750 Simplex, 1W Environmental
156.800 Simplex Distress, safety, calling
156.850 Simplex, 1W State Control
Uniden MHS75 Radio Ownerâs Manual
E-21
Ch
18A
19A
20
21A
22A
23
24
25
26
27
28
60
61A
62A
63A
64
64A
65A
66A
67
68
69
70
71
72
73
74
75
76
77
78A
E-22
RX Freq
156.900
156.950
161.600
157.050
157.100
161.750
161.800
161.850
161.900
161.950
162.000
160.625
156.075
156.125
156.175
160.825
156.225
156.275
156.325
156.375
156.425
156.475
156.525
156.575
156.625
156.675
156.725
156.775
156.825
156.875
156.925
Canadian Marine Channels
TX Freq Status
Name
156.900 Simplex Commercial
156.950 Simplex Canadian Coast Guard
157.000 Duplex, 1W Port Operation
157.050 Simplex Canadian Coast Guard
157.100 Simplex Canadian Coast Guard
157.150
Duplex Canadian Coast Guard
157.200
Duplex Marine Operator
157.250
Duplex Marine Operator
157.300
Duplex Marine Operator
157.350
Duplex Marine Operator
157.400
Duplex Marine Operator
156.025
Duplex Marine Operator
156.075 Simplex Canadian Coast Guard
156.125 Simplex Canadian Coast Guard
156.175 Simplex Port Operation
156.225
Duplex Marine Operator
156.225 Simplex Port Operation
156.275 Simplex Port Operation
156.325 Simplex, 1W Port Operation
156.375 Simplex Bridge To Bridge
156.425 Simplex Non Commercial
156.475 Simplex Non Commercial
Inhibit Receive only Digital Selective Calling
156.575 Simplex Non Commercial
156.625 Simplex Non Commercial
156.675 Simplex Port Operation
156.725 Simplex Port Operation
156.775 Simplex, 1W Port Operation
156.825 Simplex, 1W Port Operation
156.875 Simplex, 1W Port Operation
156.925 Simplex Inter Ship
Uniden MHS75 Radio Ownerâs Manual
Ch
79A
80A
81A
82A
83
83A
84
85
86
87
88
RX Freq
156.975
157.025
157.075
157.125
161.775
157.175
161.825
161.875
161.925
157.375
157.425
Canadian Marine Channels
TX Freq Status
Name
156.975 Simplex Inter Ship
157.025 Simplex Inter Ship
157.075 Simplex Canadian Coast Guard
157.125 Simplex Canadian Coast Guard
157.175
Duplex Canadian Coast Guard
157.175 Simplex Canadian Coast Guard
157.225
Duplex Marine Operator
157.275
Duplex Marine Operator
157.325
Duplex Marine Operator
157.375 Simplex Port Operation
157.425 Simplex Port Operation
International channel frequencies and names
Ch
10
11
12
13
14
15
16
RX Freq
160.650
160.700
160.750
160.800
160.850
156.300
160.950
156.400
156.450
156.500
156.550
156.600
156.650
156.700
156.750
156.800
International Marine Channels
TX Freq
Status
Name
156.050
Duplex Marine operator
156.100
Duplex Marine operator
156.150
Duplex Marine operator
156.200
Duplex Marine operator
156.250
Duplex Marine operator
156.300 Simplex Inter-ship safety
156.350
Duplex Marine operator
156.400 Simplex Commercial (ship-ship)
156.450 Simplex Boater calling channel
156.500 Simplex Commercial
156.550 Simplex 9HVVHOWUDIÂżFV\VWHP
156.600 Simplex 9HVVHOWUDIÂżFV\VWHP
156.650 Simplex Bridge to bridge
156.700 Simplex 9HVVHOWUDIÂżFV\VWHP
156.750 Simplex, 1W Environmental
156.800 Simplex Distress, safety, calling
Uniden MHS75 Radio Ownerâs Manual
E-23
Ch
17
18
19
20
21
22
23
24
25
26
27
28
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
E-24
RX Freq
156.850
161.500
161.550
161.600
161.650
161.700
161.750
161.800
161.850
161.900
161.950
162.000
160.625
160.675
160.725
160.775
160.825
160.875
160.925
156.375
156.425
156.475
156.525
156.575
156.625
156.675
156.725
156.775
156.825
156.875
161.525
International Marine Channels
TX Freq
Status
Name
156.850 Simplex, 1W Govt maritime control
156.900
Duplex Port operation
156.950
Duplex Commercial
157.000
Duplex Port operation
157.050
Duplex Port operation
157.100
Duplex Port operation
157.150
Duplex Marine operator
157.200
Duplex Marine operator
157.250
Duplex Marine operator
157.300
Duplex Marine operator
157.350
Duplex Marine operator
157.400
Duplex Marine operator
156.025
Duplex Marine operator
156.075
Duplex Marine operator
156.125
Duplex Marine operator
156.175
Duplex Marine operator
156.225
Duplex Marine operator
156.275
Duplex Marine operator
156.325
Duplex Marine operator
156.375 Simplex Bridge to bridge
156.425 Simplex Non commercial
156.475 Simplex Non commercial
Inhibit Receive only Digital Selective Calling
156.575 Simplex Non commercial
156.625 Simplex Non commercial
156.675 Simplex Port operation
156.725 Simplex Port operation
156.775 Simplex, 1W Port operation
156.825 Simplex, 1W Port operation
156.875 Simplex Port operation (ship-ship)
156.925
Duplex Port operation
Uniden MHS75 Radio Ownerâs Manual
Ch
79
80
81
82
83
84
85
86
87
88
RX Freq
161.575
161.625
161.675
161.725
161.775
161.825
161.875
161.925
157.375
157.425
International Marine Channels
TX Freq
Status
Name
156.975
Duplex Port operation
157.025
Duplex Port operation
157.075
Duplex Port operation
157.125
Duplex Port operation
157.175
Duplex Port operation
157.225
Duplex Marine operator
157.275
Duplex Marine operator
157.325
Duplex Marine operator
157.375 Simplex Marine operator
157.425 Simplex Marine operator
Weather channel frequencies and names
Channel
WX01
WX02
WX03
WX04
WX05
WX06
WX07
WX08
WX09
WX10
RX
162.5500
162.4000
162.4750
162.4250
162.4500
162.5000
162.5250
161.6500
161.7750
163.2750
Uniden MHS75 Radio Ownerâs Manual
E-25
Regulations and Safety Warnings
WARNING! Read this information before using the radio.
Maritime radio services operation
Warning! This transmitter will operate on channels/
frequencies that have restricted use in the United States.
The channel assignments include frequencies assigned for
exclusive use of the U.S. Coast Guard, use in Canada, and
use in international waters. Operation on these frequencies
without proper authorization is strictly forbidden. See pages
28 through 32 for tables of the available channels and their
uses. If you are still not certain which channels to use, see
the FCC maritime radio page at the FCC website
(http://wireless.fcc.gov/marine/) or contact the FCC Call
Center at 1-888-CALL-FCC. For individuals requiring a
license, such as commercial users, you should obtain a
OLFHQVHDSSOLFDWLRQIURP\RXUQHDUHVW)&&ÂżHOGRIÂżFH IRU86
users) or Industry Canada (for Canadian users).
Basic radio guidelines
You should familiarize yourself with the rules on marine
radios and be aware of which rules apply to your boat.
Complete guidelines for all ship and marine radio types can
be found at the US Coast Guard website under the topic
Radio Info for Boaters (the direct link is
http://www.navcen.uscg.gov/marcomms/boater.htm).
Here are a few guidelines that affect nearly all boaters.
 If you have a VHF radio on your boat, you must maintain a
watch on channel 16 (156.800 MHz) whenever the radio is
not being used to communicate. Starting in 2004, if a radio
is carried, it must be on and set to channel 16 whenever
your boat is underway.
 If you hear a distress call, wait a few minutes to let a shore
station or Coast Guard vessel respond. If no other station
has responded after 5 minutes, you must respond to the
distress call.
E-26
Uniden MHS75 Radio Ownerâs Manual
 Do not make false mayday or distress calls as a prank or
to test your radio. (This is essentially like making a false 9FDOO \RXPD\EHVXEMHFWWRÂżQHV
FCC/Industry Canada information
 &HUWL¿FDtion: FCC Part 80 or RSS-182
 Output Power: 5W
 Emission: 16K0F3E
 Transmitter Frequency Range: 156.025-157.425 MHz
This device complies with Part 80 of the FCC Rules, as
well as Part 15 of the FCC Rules. Operation is subject
to the condition that this device does not cause harmful
interference.
8QDXWKRUL]HGFKDQJHVRUPRGLÂżFDWLRQVWRWKLVHTXLSPHQW
may void compliance with the FCC Rules. Any change
RUPRGLÂżFDWLRQPXVWEHDSSURYHGLQZULWLQJE\8QLGHQ
&KDQJHVRUPRGLÂżFDWLRQVQRWDSSURYHGE\8QLGHQFRXOGYRLG
the userâs authority to operate the equipment.
FCC RF exposure information
In August 1996 the Federal Communications Commission
(FCC) of the United States with its action in Report and
Order FCC 96-326 adopted an updated safety standard for
human exposure to radio frequency electromagnetic energy
emitted by FCC regulated transmitters. Those guidelines
are consistent with the safety standard previously set by
both U.S. and international standards bodies. The design
of the radio complies with the FCC guidelines and these
international standards.
Never allow children to operate the radio without adult
supervision and the knowledge of the following guidelines.
WARNING! It is up to the user to properly operate this radio
transmitter to insure safe operation. Please adhere to the
following:
Uniden MHS75 Radio Ownerâs Manual
E-27
 Use only the supplied or an approved antenna.
8QDXWKRUL]HGDQWHQQDVPRGLÂżFDWLRQVRUDWWDFKPHQWV
could impair call quality, damage the radio, or violate FCC
regulations.
 Do not use the radio with a damaged antenna. If a
damaged antenna comes into contact with the skin, a
minor burn may result. Please contact your local dealer for
a replacement antenna.
Body-worn Operation: This device was tested for typical
body-worn operations using the supplied belt-clip. To
maintain compliance with FCC RF exposure requirements,
body-worn operations are restricted to the supplied beltclip. For hand-held operation, the radio should be held 1
inch from the userâs face. The use of accessories that do
not satisfy these requirements may not comply with FCC RF
exposure requirements and should be avoided. For more
information about RF exposure, please visit the FCC website
at www.fcc.gov.
Lithium ion battery warning
This equipment contains a rechargeable Lithium Ion battery.
The rechargeable Lithium Ion battery contained in this
HTXLSPHQWPD\H[SORGHLIGLVSRVHGRILQDÂżUH
Do not short-circuit the battery.
Do not charge the rechargeable battery used in this equipPHQWLQDQ\FKDUJHURWKHUWKDQWKHRQHVSHFLÂżHGLQWKH
ownerâs manual. Using another charger may damage the
battery or cause the battery to explode.
Li-Ion batteries must be recycled or disposed of properly.
Avoid exposing the battery (whether attached to the radio
or not) to direct sunlight, heated cars, or temperatures
below -4°F (-20°C) or above +140°F (+60°C). Exposing the
chemical contained within the battery pack to temperatures
above +140°F (+60°C) may cause the battery to rupture, fail,
or reduce performance.
E-28
Uniden MHS75 Radio Ownerâs Manual
In case of exposure to the cell contents, wash the affected
area thoroughly, and seek medical attention.
Three Year Limited Warranty Statement
WARRANTOR: UNIDEN AMERICA CORP. (âUnidenâ)
ELEMENTS OF WARRANTY: Uniden warrants, for three
years, to the original retail owner, this Uniden Product to be
free from defects in materials and craftsmanship with only
the limitations or exclusions set out below.
WARRANTY DURATION: This warranty to the original user
shall terminate and be of no further effect 36 months after
the date of original retail sale. The warranty is invalid if the
Product is (A) damaged or not maintained as reasonable
RUQHFHVVDU\ % PRGLÂżHGDOWHUHGRUXVHGDVSDUWRIDQ\
FRQYHUVLRQNLWVVXEDVVHPEOLHVRUDQ\FRQÂżJXUDWLRQVQRW
sold by Uniden, (C) improperly installed, (D) serviced or
repaired by someone other than an authorized Uniden
service center for a defect or malfunction covered by this
warranty, (E) used in any conjunction with equipment or parts
or as part of any system not manufactured by Uniden, or (F)
installed or programmed by anyone other than as detailed by
the Operating Guide for this product.
STATEMENT OF REMEDY: In the event that the product
does not conform to this warranty at any time while this warranty is in effect, warrantor will repair the defect and return
it to you without charge for parts, service, or any other cost
(except shipping and handling) incurred by warrantor or its
representatives in connection with the performance of this
warranty. THE LIMITED WARRANTY SET FORTH ABOVE
IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO
THE PRODUCT AND IS IN LIEU OF AND EXCLUDES ALL
OTHER WARRANTIES OF ANY NATURE WHATSOEVER,
WHETHER EXPRESS, IMPLIED OR ARISING BY
OPERATION OF LAW, INCLUDING, BUT NOT LIMITED
TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY
Uniden MHS75 Radio Ownerâs Manual
E-29
OR FITNESS FOR A PARTICULAR PURPOSE. THIS
WARRANTY DOES NOT COVER OR PROVIDE FOR THE
REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES. Some states do not allow this
exclusion or limitation of incidental or consequential damages
so the above limitation or exclusion may not apply to you.
/(*$/5(0(',(6 7KLVZDUUDQW\JLYHV\RXVSHFLÂżFOHJDO
rights, and you may also have other rights which vary from
state to state. This warranty is void outside the United States
of America.
PROCEDURE FOR OBTAINING PERFORMANCE OF
WARRANTY: If, after following the instructions in this
Operating Guide you are certain that the Product is
defective, pack the Product carefully (preferably in its original
packaging). Include evidence of original purchase and a
note describing the defect that has caused you to return it.
The Product should be shipped freight prepaid, by traceable
means, or delivered, to warrantor at:
Uniden America Corporation
Parts and Service Division
4700 Amon Carter Boulevard
Fort Worth, TX, 76155
(800) 554-3988
E-30
Uniden MHS75 Radio Ownerâs Manual
Source Exif Data:
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