Standard Horizon HX280E User manual

Page 1HX280E
HX280E
VHF FM Marine Transceiver
Owner’s Manual

HX280EPage 2
TABLE OF CONTENTS
1. GENERAL INFORMATION .................................................................................... 4
1.1 INTRODUCTION ........................................................................................... 4
2. ABOUT THIS RADIO ............................................................................................ 4
2.1 ABOUT THE VHF MARINE BAND ........................................................... 4
3. ACCESSORIES ....................................................................................................... 5
2.1 PACKING LIST ............................................................................................. 5
2.2 OPTIONS ...................................................................................................... 5
4. GETTING STARTED .............................................................................................. 6
4.1 RADIO CARE ................................................................................................ 6
4.2 BATTERIES AND CHARGERS .................................................................. 6
4.2.1 BATTERY SAFETY ........................................................................... 6
4.2.2 BATTERY INSTALLATION / REMOVAL ........................................... 8
4.2.3 BATTERY CHARGING ...................................................................... 8
4.3 INSTALLATION OF OPTION ........................................................................ 9
4.3.1 FBA-40 ALKALINE BATTERY CASE ................................................ 9
5. CONTROLS AND INDICATORS ........................................................................ 10
5.1 CONTROLS AND SWITCHES ................................................................. 10
5.2 INDICATORS ............................................................................................... 13
6. BASIC OPERATION ............................................................................................ 14
6.1 PROHIBITED COMMUNICATIONS .......................................................... 14
6.2 INITIAL SETUP .......................................................................................... 14
6.3 RECEPTION ............................................................................................... 14
6.4 TRANSMISSION ......................................................................................... 15
6.4.1 TRANSMIT TIME-OUT TIMER (TOT)............................................. 15
6.5 USA, CANADIAN, AND INTERNATIONAL CHANNELS ........................ 16
6.6 SIMPLEX/DUPLEX CHANNEL USE ........................................................ 16
6.7 KEYPAD LOCKING .................................................................................... 16
6.8 PRESET CHANNELS (0 ~ 9): INSTANT ACCESS ................................. 17
6.8.1 PROGRAMMIMG ............................................................................ 17
6.8.2 OPERATION .................................................................................... 17
6.9 SCANNING ................................................................................................. 18
6.9.1 SELECTING THE SCAN TYPE ...................................................... 18
6.9.2 MEMORY SCANNING (M-SCAN)................................................... 18
6.9.3 PRIORITY SCANNING (P-SCAN).................................................. 19
6.10 DUAL WATCH ............................................................................................ 20
6.11 EMERGENCY (CHANNEL 16 USE)......................................................... 20
6.12 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9)........................... 21
6.13 OPERATING ON CHANNEL 13 .............................................................. 22
6.14 OPERATING ON CHANNEL 67 .............................................................. 22
7. MENU (“SET”)MODE .......................................................................................... 23
8. MAINTENANCE .................................................................................................... 24
8.1 GENERAL ................................................................................................... 24
8.2 REPLACEMENT PARTS ........................................................................... 24
8.3 TROUBLESHOOTING CHART ................................................................. 25
9. VHF MARINE CHANNEL ASSIGNMENT ......................................................... 26
10. SPECIFICATIONS ................................................................................................. 30
10.1 GENERAL ................................................................................................... 30
10.2 TRANSMITTER ........................................................................................... 30
10.3 RECEIVER .................................................................................................. 30

Page 3HX280E
Disposal of your Electronic and Electric Equipment
Products with the symbol (crossed-out wheeled bin) cannot be disposed
as household waste.
Electronic and Electric Equipment should be recycled at a facility ca-
pable of handling these items and their waste byproducts.
In EU countries, please contact your local equipment supplier
representative or service center for information about the waste
collection system in your country.
Attention in Case of Use
This transceiver works on frequencies which are not generally permit-
ted. For frequency allocation, apply for a licence at your local spectrum
management authority. For actual
usage contact your dealer or sales
shop in order to get your trans-
ceiver adjusted to the allocated fre-
quency range.
Congratulations on your purchase of the HX280E! Whether this is your first
portable marine VHF transceiver, or if you have other STANDARD HORIZON
equipment, the STANDARD HORIZON organization is committed to ensuring
your enjoyment of this high performance transceiver, which should provide
you with many years of satisfying communications even in the harshest of
environments. STANDARD HORIZON technical support personnel stands
behind every product sold, and we invite you to contact us should you require
technical advice or assistance.
We appreciate your purchase of the HX280E, and encourage you to read this
manual thoroughly, so as to learn and fully understand the capabilities of the
HX280E.
AUT BEL BGR CYP CZE DEU DNK
ESP EST FIN FRA GBR GRC HUN
IRL ITA LTU LUX LVA MLT NLD
POL PRT ROM SVK SVN SWE CHE
ISL LIE NOR
List of the practicable area

HX280EPage 4
1. GENERAL INFORMATION
1.1 INTRODUCTION
The HX280E is a Submersible 5-Watt portable two way marine transceiver.
The transceiver has all allocated USA, International, or Canadian channels. It
has emergency channel 16 which can be immediately selected from any chan-
nel by pressing the [16/9]key.
The HX280E includes the following features: Memory Scanning, Priority Scan-
ning, easy-to-read large LCD display, EEPROM memory back-up, Battery Life
displayed on LCD, and a transmit Time-Out Timer (TOT).
The HX280E transmitter provides a full 5 Watt of transmit power and also is
selectable to 1 Watt to assist the user in ensuring maximum battery life.
2. ABOUT THIS RADIO
2.1 ABOUT THE VHF MARINE BAND
WARNING
The radio frequencies used in the VHF marine band lie between 156
and 158 MHz. The marine VHF band provides communications over
distances that are essentially “Line of sight” Actual transmission range
depends much more on antenna type, gain and height than on the power
output of the transmitter. On a fixed mount 25 W radio transmission
expected distances can be greater than 15 miles, for a portable 5 W
radio transmission the expected distance can be greater than 5 miles in
“Line of sight”.
The user of a Marine VHF radio is subject to severe fines if the radio is
used on land. The reasoning for this is you may be near an inland water-
way, or propagation anomalies may cause your transmission to be heard
in a waterway. If this occurs, depending upon the marine VHF channel
on which you are transmitting, you could interfere with a search and
rescue case, or contribute to a collision between passing ships. For
VHF Marine channel assignments refer to page 32 section 10.

Page 5HX280E
3. ACCESSORIES
3.1 PACKING LIST
When the package containing the transceiver is first opened, please check it
for the following contents:
HX280E Transceiver
CAT460 Antenna
FNB-V105LI 7.4 V, 1650 mAh Li-Ion Battery Pack
CD-46 Charger Cradle for HX280E
PA-48C/UAC AC Adapter for CD-46
CLIP-920 Belt Clip
Owner’s Manual
3.2 OPTIONS
CN-3 Radio-to-Ship’s-Antenna Adapter
CD-46 Charger Cradle
FNB-V105LI 7.4 V, 1650 mAh Li-Ion Battery Pack
FBA-40 Alkaline Battery Case
E-DC-19A1DC Cable with 12 V Cigarette Lighter Plug
PA-48B/C/U2AC Adapter for the CD-46
1: E-DC-19A supply voltage 10.4 V ~ 14.4 VDC only. Fuse rating of 3A only
to be used.
2: “B” suffix is for use with 120 VAC
(Type-A plug), “C” suffix is for use with
230 VAC (Type-C plug), and “U” suf-
fix is for use with 230 VAC (Type-BF
plug).
Note: Before operating the HX280E for
the first time, it is recommended that the
battery be charged. Please see section
“4.2.3 BATTERY CHARGING” for details.

HX280EPage 6
4. GETTING STARTED
4.1 RADIO CARE
CAUTION
Before following the instructions below, insure the battery pack is in place
and firmly tightened. Care must be taken if the radio was dropped and a
close inspection may be needed to insure the radio case and gaskets
are in adequate condition.
Clean the radio with fresh water after exposure to salt water by rinsing the
radio under a sink faucet or by dunking the radio in a bucket of fresh water.
After washing, use a soft cloth and thoroughly dry all parts of the radio. This is
to keep the rubber switches and speaker grill clean and in top operating condi-
tion.
CAUTION
There is rare case that water is in between the radio and battery pack. In
this case, the radio and battery pack keep the submersible performance
individually. However, remove the battery pack from the radio, then clean
the radio and battery pack individually by a procedures described above.
4.2 BATTERIES AND CHARGERS
If the radio has never been used, or its charge is depleted, it may be charged
by connecting the CD-46 Charger Cradle with the PA-48C/U AC Adapter, as
shown in the illustration on page 8. The PA-48C/U will charge a completely
discharged FNB-V105LI battery pack in about 6 hours.
The FNB-V105LI is a high performance Li-Ion battery providing high capacity
in a compact package.
CAUTION
To avoid risk of explosion and injury, FNB-V105LI battery pack should
only be removed, charged or recharged in non-hazardous environments.
4.2.1 BATTERY SAFETY
Battery packs for your transceiver contain Li-Ion batteries. This type of battery
stores a charge powerful enough to be dangerous if misused or abused, espe-
cially when removed from the transceiver. Please observe the following pre-
cautions:

Page 7HX280E
DO NOT SHORT BATTERY PACK TERMINALS: Shorting the terminals that
power the transceiver can cause sparks, severe overheating, burns, and bat-
tery cell damage. If the short is of sufficient duration, it is possible to melt
battery components. Do not place a loose battery pack on or near metal sur-
faces or objects such as paper clips, keys, tools, etc. When the battery pack is
installed on the transceiver, the terminals that transfer current to the trans-
ceiver are not exposed. The terminals that are exposed on the battery pack
when it is mounted on the transceiver are charging terminals only and do not
constitute a hazard.
DO NOT INCINERATE: Do not dispose of any battery in a fire or incinerator.
The heat of fire may cause battery cells to explode and/or release dangerous
gases.
Battery Maintenance
For safe and proper battery use, please observe the following:
Battery packs should be charged only in non-hazardous environments;
Use only STANDARD HORIZON-approved batteries;
Use only a STANDARD HORIZON approved charger. The use of any
other charger may cause permanent damage to the battery.
Follow charging instructions provided with the chargers.
Keep the battery contacts clean.
Battery Storage
Store the batteries in a cool place to maximize storage life. Since batteries are
subject to self-discharge, avoid high storage temperatures that cause large
self-discharge rates. After extended storage, a full recharge is recommended.
Battery Recycling
DO NOT PLACE USED BATTERIES IN YOUR REGULAR TRASH!
LI-ION BATTERIES MUST BE COLLECTED, RECYCLED OR DISPOSED
OF IN AN ENVIRONMENTALLY SOUND MANNER.
The incineration, land filling or mixing of Li-Ion batteries with the municipal
solid waste stream is PROHIBITED BY LAW in most areas.
Return batteries to an approved Li-Ion battery recycler. This may be where
you purchased the battery.
Contact your local waste management officials for other information regarding
the environmentally sound collection, recycling and disposal of Li-Ion batter-
ies.

HX280EPage 8
4.2.2 BATTERY INSTALLATION/REMOVAL
To install the battery pack, hold the transceiver with your left hand, so your
palm is over the speaker and your thumb is on the top of the belt clip. Insert
the battery pack into the bat-
tery compartment on the back
of the radio while tilting the Belt
Clip outward, then push the
bottom side of the battery pack
until the battery pack locks with
the Battery Pack Latch.
To remove the battery, turn the radio off. Slide the Battery Pack Latch on
the bottom of the radio, then slide the battery downward and out from the
radio while holding the Belt Clip.
4.2.3 BATTERY CHARGING
1. Turn the transceiver off.
2. PA-48C/U: Insert the DC plug from the
PA-48C/U into the DC jack on the CD-46
side panel, then plug the PA-48C/U into
the AC line outlet.
E-DC-19A: Insert the DC plug from the
E-DC-19A into the DC jack on the CD-46
side panel, then insert the 12 V DC con-
nector into a suitable DC supply (10 - 14
VDC).
3. Insert the HX280E (with the battery pack)
into the CD-46; the antenna should be at
the left side when viewing the charger
from the front.
4. If the HX280E is inserted correctly, the Red “CHARGING” indicator will
glow. A fully-discharged pack will be charged completely in approximately
6 hours.
5. When charging is completed, the red LED indicator will change to green.
Remove the transceiver from the CD-46, and unplug the NC-90C/U from
the AC line outlet (PA-48C/U) or unplug the E-DC-19A from the DC supply
(E-DC-19A).
CAUTION
The CD-46 is NOT designed to be waterproof. Do not attempt to charge
in water hazardous locations.
Tilt the Belt Clip
Insert the Battery Pack
Push the bottom side of
the battery pack
PA-48C/U
CD-46

Page 9HX280E
NOTE
The CD-46 is only designed for the charging of the HX280E’s battery,
and is not suitable for other purposes. The CD-46 may contribute noise
to TV and radio reception in the immediate vicinity, so we do not recom-
mend its use adjacent to such device.
4.3 INSTALLATION OF OPTION
4.3.1 FBA-40 ALKALINE BATTERY CASE
FBA-40 is a battery case that holds six LR6 size Alkaline batteries and is used
with the HX280E transceiver. When the FBA-40 is installed into the HX280E
the radio can withstand immersion in water up to 3.3ft for 30 minutes.
1. On the FBA-40, remove the battery case cover ( ).
2. Slide the six LR6 size Alkaline batteries into the FBA-40 Battery Case with
the Negative (–) side of the batteries touching the spring connections in-
side the FBA-40 Battery Case.
3. Attach the battery cover to the FBA-40 Battery Case while being careful so
that o-ring is not twisted.
4. Insert the FBA-40 Battery Case into the battery compartment on the back
of the HX280E transceiver while tilting the Belt Clip outward, then push the
bottom side of the FBA-40 Battery Case until the Battery Case locks with
the Battery Pack Latch.

HX280EPage 10
5. CONTROLS AND INDICATORS
5.1 CONTROLS AND SWITCHES
NOTE
This section defines each control of the transceiver. For detailed operat-
ing instructions, refer to section 6 “BASIC OPERATION”. Refer to illustra-
tions for the location of the following controls, switches, and connections.
ANT Jack (Top Panel)
The supplied CAT460 flexible antenna is attached here.
POWER Switch/VOLUME Control (VOL)
Turns the transceiver on and off as well as adjusts the speakers audio
volume.
Turn this knob clockwise to turn the radio on and increase the speakers
audio volume.
Turn fully counter-clockwise to turn the radio off.







NOTE
When transmitting,
position your mouth
about 1.0 ~ 2.5 cm
away from the small
mic hole.
Speak slowly and
clearly into the micro-
phone.

Page 11HX280E
PTT (PUSH-TO-TALK)Switch
When pushed activates the transmitter.
LCD Display
This display shows current operating conditions, as indicated on the page
13.
Keypad
[SQL]Key
Press this key to activate the squelch adjusting mode. Press the [] or []
key to adjust the squelch threshold level.
Press and hold this key for 3 seconds to open the squelch, allowing you to
monitor the operating channel. Release the key to resume normal (quiet)
monitoring.
[SCAN]Key
Starts scanning and priority scanning of programmed channels.
[(UP)] Key
Press the key momentarily to increase the channel one step. Hold the key
down to increase the channel continuously.
Secondary use:
Used to adjust the squelch threshold level up after the [SQL]key is pressed.
[(DOWN)] Key
Press the key momentarily to decrease the channel one step. Hold the key
down to decrease the channel continuously.
Secondary use:
Used to adjust the squelch threshold level down after the [SQL]key is
pressed.
[DW]Key
Press this key to activate the Dual Watch feature. A “ ” icon will appear
on the upper left of the display when the Dual Watch feature is activated.
Secondary use:
When the [16/9]key is held and the [DW]key is pressed, the radio will
change the marine band between the International, Canadian, and USA
channels.

HX280EPage 12
[MEM]Key
Press this key to memorize the selected channel for scanning. When
pressed a “MEM” icon will be shown on the LCD display indicating the
channel has been saved to scan memory.
To delete the channel from scan memory, select the channel and press
this key until “MEM” is removed from the display.
[H/L()] Key
Press this key to toggle the transmitter output power between “High” (5
Watts) and “Low” (1 Watt) power. This key does not function on the “Trans-
mission Inhibited” and “Low power only” channels.
Secondary use:
Hold down this key to lock the keypad (except the [SQL], [H/L()], and
PTT keys) so that they are not accidentally changed. The “ ” icon will
appear at the bottom right corner on the display, to indicate that the func-
tions are locked. Hold down this key until the “ ” icon disappears to un-
lock the radio.
[16/9]Key
Pressing this key immediately recalls channel 16 from any channel loca-
tion. Holding down this key recalls channel 9. Pressing this key again re-
verts to the previous selected working channel.
[PRESET]Key
Immediately recalls one of up to 10 user preset memories for each band
(shown as “0” - “9” on the LCD). Pressing this key repeatedly scrolls through
the preset memory channels.
Speaker
The internal speaker is located here.
Microphone
The internal microphone is located here.
When transmitting, position your mouth about 1.0 ~ 2.5 cm away from the
small mic hole. Speak slowly and clearly into the microphone.
Battery Pack Lock (Bottom side)
Slide the Battery Pack Lock to the “” position for battery removal.

Page 13HX280E
5.2 LCD INDICATORS
“” Indicator
This indicator appears when a sig-
nal is being received.
“” Indicator
This indicator appears during trans-
mission.
“ / ” Indicators
This indicator shows the TX output
power.
“”: High power (5 Watts)
“”: Low power (1 Watt).
“” Indicator
When the “ ” icon is shown on the
LCD, all keys are disabled except for
the PTT, [SQL], and [H/L()] keys.
“” Battery Indicator
“”: Full battery
“”: Lower battery
“”: Battery is very low
“(Blinking)”: Prepare to charge
the battery
“” Indicator
This indicator appears when the Dual
Watch is activated.
“MEM” Indicator
This indicator shows the channel is
in the transceiver’s “Scan Memory”.
SQL Indicator
This indicator shows the squelch
level.
“P” Indicator
This indicator shows the channel is
in the “Priority Channel”.
“U/I/C” Indicator
These indicators show the “band” of
operation for the particular channel.
“U” indicates the USA band; “I” indi-
cates the International band; and “C”
indicates the Canadian band.
“SCN” Indicator
This indicator appears when the
Scan is activated.
Channel Display
The operating channel is shown on
the LCD in both the transmission and
reception modes.

HX280EPage 14
6. BASIC OPERATION
6.1 PROHIBITED COMMUNICATIONS
False distress or emergency messages:
Messages to “any boat” except in emergencies and radio tests;
Messages to or from a vessel on land;
Transmission while on land;
Obscene, indecent, or profane language.
6.2 INITIAL SETUP
1. Install the battery pack on the transceiver (see section “4.2.2 BATTERY
INSTALLATION/REMOVAL”).
2. Install the antenna onto the transceiver; hold the bottom end of the an-
tenna, then screw it onto the mating connector on the transceiver until it is
snug. Do not over-tighten.
6.3 RECEPTION
1. Turn the VOL knob clockwise to turn the transceiver on.
2. Press the [SQL]key to activate the squelch adjusting
mode (The “SQL” indicator will blink). Press the []key
until the “ ” indicator will appear on the display,
then press the [SQL]key again.
3. Turn up the VOL knob until the noise or audio from the speaker is at a
comfortable level.
4. Press the [SQL]key, then press the []key until the
random noise disappears. This state is known as the
“Squelch Threshold”.
5. Press the []or []key to select the desired channel.
Refer to the channel chart on page 27 for available chan-
nels.
6. When a signal is received, adjust the VOL knob to the
desired listening level. The “ ” indicator in the LCD
is displayed indicating that the channel is being used.

Page 15HX280E
6.4 TRANSMISSION
1. Perform “6.3 RECEPTION” discussion above.
2. Before transmitting, monitor the channel and make sure it is clear.
3. For communications over short distances, press the
[H/L()] key to select the Low power (1 watt: “ ” icon
appears).
Note: Transmitting on Low power prolongs battery life.
Low power should be selected whenever possible.
4. If using Low power is not effective, select High power
(5 watts: “ ” icon appears) by pressing the [H/L()]
key.
5. When receiving a signal, wait until the incoming signal stops before trans-
mitting. The transceiver cannot transmit and receive simultaneously.
6. Press the PTT (Push-To-Talk) switch to transmit. During
transmission, the “ ” indicator will appear on the dis-
play.
7. Position your mouth about 1.0 ~ 2.5 cm away from the
mic hole. Speak slowly and clearly into the microphone.
8. When the transmission is finished, release the PTT switch.
6.4.1 TRANSMIT TIME - OUT TIMER (TOT)
While the PTT switch is held down, transmission time is limited to 5 minutes.
This prevents prolonged (unintentional) transmissions. About 10 seconds be-
fore automatic transmitter shutdown, a warning beep will sound from the
speaker. The transceiver automatically switches to the receiving mode, even if
the PTT switch is held down. Before transmitting again, the PTT switch must
first be released, then wait 10 seconds and then pressed again. This Time-
Out-Timer (TOT) prevents a continuous transmission that would result from an
accidentally stuck PTT switch.
NOTE
The PTT switch is ignored for 10 seconds after the transceiver auto-
matically switches to the receiving mode by the TOT feature.

HX280EPage 16
6.5 USA, CANADIAN, AND INTERNATIONAL CHANNELS
1. To change from International to Canadian or US Marine Channels, hold
down the [16/9]key and press the [DW]key. The band will change from
International, to Canadian, and to US with each press.
2. “U” appears on the LCD for the USA band, “I” appears
for the International band, and “C” appears for the Ca-
nadian band
3. Refer to the marine channel charts in section 9 “VHF MARINE CHANNEL
ASSIGNMENTS” for allocated channels.
6.6 SIMPLEX/DUPLEX CHANNEL USE
Refer to the VHF MARINE CHANNEL CHART (page 27) for instructions on
use of simplex and duplex channels.
NOTE
All channels are factory-programmed in accordance with FCC (USA),
Industry Canada and International regulations. The mode of operation
cannot be altered from simplex to duplex or vice-versa. Simplex (ship to
ship) or duplex (marine operator) mode is automatically activated, de-
pending on the channel and whether the USA, International or Cana-
dian operating band is selected.
6.7 KEYPAD LOCKING
In order to prevent accidental channel change, the HX280E’s keypad may be
locked out.
Hold down the [H/L()] key to lock the keypad (except the
PTT, [SQL], and [H/L()] keys) so that they are not acci-
dentally changed. The “ ” icon will appear on the channel
number of the display, to indicate that the functions are
locked.
Hold down the [H/L()] key until the “ ” icon disappears to unlock the ra-
dio.

Page 17HX280E
6.8 PRESET CHANNELS (0 ~ 9): INSTANT ACCESS
Ten user assigned channels can be programmed for instant access. Pressing
the [PRESET]key activates the user assigned channel bank. If the [PRESET]
key is pressed and no channels have been assigned, an alert beep will be
emitted from the speaker.
6.8.1 PROGRAMMING
1. Select the desired channel to be assigned into the Preset Channel Bank
using the []or []key.
2. Press and hold the [PRESET]key until the Preset Chan-
nel Number “0” is shown at the right of the channel num-
ber on the display.
3. Repeat steps 1 and 2 to program the desired channels into Preset Chan-
nels “1” ~ “9”.
4. To delete a Preset Channel, select the Preset Channel Number to be de-
leted using the []or []key, then press and hold the [PRESET]key until
the Preset Channel Number is removed from the display.
6.8.2 OPERATION
Pressing the [PRESET]key will toggle between Preset Channels “0” through
“9” and the last selected “regular” channel. Preset Channel
“0” is represented by “0” to the right of the channel number
on the display for one second, and preset channel “1” is
represented by “1” and so forth. The preset channel number
will disappear after one second.

HX280EPage 18
6.9 SCANNING
The HX280E allows the user to select the scan type from “Memory Scan” or
“Priority Scan”. “Memory Scan” scans the channels that were programmed
into memory. “Priority Scan” scans the channels that were programmed into
memory with the priority channel (Channel 16). When an incoming signal is
detected on one of the channels during scan, the radio will pause on that
channel, allowing you to listen to the incoming transmission.
6.9.1 SELECTING THE SCAN TYPE
1. Turn the transceiver off by rotating the VOL knob fully counter-clockwise.
2. Hold down the [SQL]key, and then turn on the transceiver while still hold-
ing down the [SQL]key.
3. “SEt” will appear on the display, indicating the Menu
(“Set”) Mode has been activated.
4. Press the [SQL]key, repeatedly if necessary to
select the Menu item “SC”.
5. Press the []or []key to select “PS (Priority Scan)” or
“MS (Memory Scan)”. The factory default is “PS
(Priority Scan)”.
6. After completing your selection, turn the trans-
ceiver off and on by rotating the VOL knob.
6.9.2 MEMORY SCANNING (M-SCAN)
1. Select the desired channel to be included in the scan memory using the
[]or []key.
2. Press the [MEM]key to store the channel into the
transceiver’s scan memory. “MEM” will be displayed on
the LCD.
3. Repeat steps 1 and 2 for all the channels to be scanned.
4. To delete a channel from the transceiver’s scan memory, select the memo-
rized channel, then press the [MEM]key to delete the channel from scan
memory.
5. All channels programmed remain in the transceiver’s scan memory even if
the power is turned off.
6. Adjust the SQL level until background noise is eliminated by pressing the
[SQL]key followed by the []/ []key.
7. To start scanning, press the [SCAN]key. The scan pro-
ceeds from the lowest to the highest programmed chan-
nel and stops scanning when a transmission is received.
Scanning will resume when the incoming signal disap-
pears at the end of the transmission. The “MEM” and “SCN” icon will ap-

Page 19HX280E
pear at the left of the channel number on the display during scanning.
8. To stop the scan, press the [SCAN]key.
6.9.3 PRIORITY SCANNING (P-SCAN)
1. Select the desired channel to be included in the scan memory using the
[]or []key.
2. Press the [MEM]key to store the channel into the
transceiver’s scan memory. “MEM” will be displayed on
the LCD.
3. Repeat steps 1 and 2 for all the channels to be scanned.
4. To delete a channel from the transceiver’s scan memory, select the memo-
rized channel, then press the [MEM]key to delete the channel from scan
memory.
5. All channels programmed remain in the transceiver’s scan memory even if
the power is turned off.
6. Adjust the Squelch Level until background noise is eliminated by pressing
the [SQL]key followed by the []/ []key.
7. To start scanning, press the [SCAN]key. A “SCN” icon and blinking “P” and
“MEM” icons will appears at the left of the channel number on the display
during scanning. The scan proceeds between the memo-
rized channels and the Priority Channel (Channel 16).
As an example of priority scanning, let us say that ma-
rine channels “06”, “07”, and “08” are memorized in the
transceiver’s scan memory. Priority scanning will proceed in the following
sequence:
[CH06](CH16)[CH07](CH16)
[CH08](CH16)[CH06](CH16)[CH07] .....
: Priority Channel
4. Even when the transceiver stops and listens to the signal of a programmed
channel, the transceiver will “dual watch” between this channel and the
priority channel. This allows the radio to be able to receive calls on chan-
nel 16 (priority channel) even when the radio is receiving on another chan-
nel.
5. To stop the Priority Scanning, press the [SCAN]key.

HX280EPage 20
6.10 DUAL WATCH
The Dual Watch feature allows the radio watch the Priority Channel “Channel
16” and one other channel.
1. Select the desired channel using the []or []key.
2. Press the [DW]key to activate the Dual Watch feature. A
“” icon will appear on the upper left of the display
when the Dual Watch feature is activated.
3. When a transmission is received on the “Priority Chan-
nel”, the radio receives the “Priority Channel” until the incoming signal dis-
appears.
4. When a transmission is received on the “Priority Channel”, the radio re-
ceives the “Priority Channel” until the incoming signal disappears.
5. The Dual Watch feature will resume when the incoming signal disappears
at the end of the transmission.
6. To stop the Dual Watch feature and return to normal operation, press and
hold the [SCAN(DW)] key for two seconds again.
6.11 EMERGENCY (CHANNEL 16 USE)
Channel 16 is known as the Hail and Distress Channel. An emergency may be
defined as a threat to life or property. In such instances, be sure the trans-
ceiver is on and set to “Channel 16”. Then use the following procedure:
1. Press the PTT (Push-To-Talk) switch and say “Mayday, Mayday, Mayday.
This is _____, _____, _____” (your vessel’s name).
2. Then repeat once: “Mayday, _____” (your vessel’s name).
3. Now report your position in latitude/longitude, or by giving a true or mag-
netic bearing (state which) to a well-known landmark such as a navigation
aid or geographic feature such as an island or harbor entry.
4. Explain the nature of your distress (sinking, collision, aground, fire, heart
attack, life-threatening injury, etc.).
5. State the kind of assistance your desire (pumps, medical aid, etc.).
6. Report the number of persons aboard and condition of any injured.
7. Estimate the present seaworthiness and condition of your vessel.
8. Give your vessel’s description: length, design (power or sail), color and
other distinguishing marks. The total transmission should not exceed 1
minute.
9. End the message by saying “OVER”. Release the PTT switch and listen.
10. If there is no answer, repeat the above procedure. If there is still no re-
sponse, try another channel.