Shakespeare Electronic SE 2510 User manual

wm
mm

READ ME FIRST
Should you encounter any problems with your product
DO NOT RETURN THIS PRODUCT TO THE STORE
• Please read the manual carefully. If you still need assistance, call 1-800-800-9008 and request
Marine Electronics Technical Support.
Before calling, get the following information ready for the Technical Support representative.
• Model number • Serial number
• Date of purchase • Place of purchase
• Your name and address • A daytime phone number
• Describe the problem as accurately as possible and tell the Technical Support representative
what you may have done to try to solve the problem.
• The Technical Support representative will make every effort to resolve the problem as quickly and
efficiently as possible.
KEEP ALL PACKING MATERIAL AND CARTON FOR FUTURE TRANSPORTING
_ __ Cutalong the line and attach the section below to the product __
In the rare event you must return this product after talking with Technical Support, you MUST
complete this form in detail and place it in the box with the product.
Model if:
Serial ft:
Purchase Date: Return Date:
Owner's Name:
Home Phone: ( )
Address:
Day Phone: ( )
Fax: ( )
Place of Purchase:_
Reason for Return (be specific - must be filled out or product will not be accepted)
Cut along the line and use the section below as your shipping label
___ Shakespeare, Company
Electronics and Fiberglass Division
19845 US Highway 76
RMA # _ Newberry, SC 29108

TABLE OF CONTENTS
1.0 INTRODUCTION.1
1.1 Purpose.1
1.2 Equipment Description.2
1.3 Brief Operating Instructions.3
1.4 Technical Specifications.6
1.5 Supplied Parts.7
1.6 License Requirements.8
1.6.1 License Application.8
2.0 INSTALLATION .9
2.1 Unpacking And Inspection.9
2.2 Mounting Preparation.9
2.3 Mounting Location Selection.... 9
2.4 Unit Mechanical Installation.10
2.5 Electrical Connections.10
2.5.1 Power Hookup.11
2.5.2 Antenna Connection.11
2.5.3 Coax Connector Assembly.12
2.5.4 External Speaker Connection.... 13
3.0 OPERATION.14
3.1 Controls And Display.14
3.2 Operating Procedures.15
3.2.1 Power and Volume Control.15
3.2.2 Display Backlighting.15
3.2.3 Setting Squelch.15
3.2.4 Channel Selection.15
3.2.5 USA/lnlemational
Channel Select.16
3.2.6 Voice Transmitting.16
3.2.7 High/Low Transmit Power.16
3.2.8 Transmitter 5-Minute
TimeOut.17
3.2.9 Weather Channels Access.17
3.2.10 Channel 16/9 Priority.17
3.2.11 Channel 13/67 High Power
Override.17
3.2.12 Dual Watch Scanning.18
3.2.13 Master Reset.18
3.2.14 All Channel Scan.18
3.2.15 Memory Scan.18
3.2.16 External Speaker.19
3.3 Method of Operation.19
4.0 APPENDIX . 2 0
Appendix A.20
USA VHF Marine
Channel Assignments
Appendix B..21
VHF Marine Weather
Channel Assignments
Appendix C . 21
International VHF Marine
Channel Assignments
Appendix D.22
Canadian VHF Marine
Channel Assignments (Information Only)
Appendix E.24
Phonetic Alphabet and Glossary
Appendix F.25
Block Diagram / PC Boards

1.0 INTRODUCTION
Welcome and congratulations on your purchase of the Shakespeare SE2510 Marine VHF
radio. You have purchased a high technology piece of marine electronics, certified waterproof
by meeting tough Coast Guard CFR-46 testing requirements and fully backed by the
Shakespeare name. The SE2510 Marine VHF radio incorporates modem, compact styling
and functionality. Ease of operation makes your boating communications totally professional
and pleasing.
The frequency synthesized transceiver provides access to ALL usable USA and International
Channels, as well as 10 Weather Channels. Enhanced features like Channel 16/9 priority,
Weather Alert, three types of scanning modes, coupled to a large LCD display simply makes
the SE2510 the best value in marine VHF radios on the market today.
The key to obtain the most use and pleasure from your new VHF radio, is reading the Owner's
Manual. This manual teaches you proper transceiver procedures and ensure many years of
satisfying use. It is especially important to cover the section pertaining to "License
Requirements" established by the Federal Communication Commission (FCC).
1.1 Purpose
The SE2510 Owner's Manual is designed to answer your questions about proper installation
and operation of your radio. Many new user pitfalls can be avoided by reading through each
section of this manual before attempting to install or operate your radio. The "Brief Operating"
section assures you are on the air quickly and properly.
1

1.2 Equipment Description
The Shakespeare SE2510 Marine VHF is one of the smallest, most compact 25W radios
available in the world today. The digitally frequency synthesized transceiver is constructed
of only the highest grade mechanical and solid state electronic components. Advanced
microprocessor control, integrated RF circuit technology, and large high-contrast LCD allows
operational features not possible until now in such a compact unit. This full 25W radio can
easily fit behind the steepest sloped windshield or be completely in-dash mounted with the
Shakespeare optional Flush Mount Kit.
2

13 Brief Operating Instructions
Use the following brief operation instructions to quickly refresh your memory when using
the Shakespeare SE2510 Marine VHF radio. Please remember that this section is not designed
to replace a thorough study of the Owner's Manual.
1- Scan active indicator
2- Transmit active indicator
3- Hi Output power indicator
4- Lo Output power indicator
5- Memory channel indicator
6- USA channel indicator
7- Intemational channel indicator
8- Weather Alert indicator
9- Weather channel indicator
10- Dual Watch active indicator
11- Active channel readout
12- Speaker
3 3-Microphone cable
14- 16/9 Priority select key
15- Scan & Memory select key
16- Dual Watch & Transmit power select key
17- USA/Intemational channel & Weather
mode select key
18- Up channel select key
19- Down channel select key
20- On/Off/Volume knob
21- Squelch knob
22- PTT (Push-To-Talk) key
23- Up channel select key (MIC)
24- Down channel select key (MIC)
3

1.4 Technical Specifications
General
Compliance:
Waterproofness:
Temperature Range:
Construction:
Speaker:
Microphone:
Size (WxHxD):
Weight:
Number of Channels:
Channel Display:
Keypad:
Squelch Control:
Volume Control:
Frequency Control Method:
Rated Input Voltage/Current:
Power Source Protection:
Fuse Rating:
Antenna Impedance:
Frequency Stability:
Special Functions:
Warranty:
TRANSMITTER
Power Output:
Modulation:
Transmit Frequencies:
Spurious/Harmonic
Emissions:
FCC Part 80, ITU Radio Regulations Appendix 18.
DOC CATV RSS-182 Issue 2.
Radio and Microphone Meets Coast Guard CFR-46
Waterproof Testing Specifications.
- 20 T; to + 50 1;
UV Stable Plastic Front with Die-Cast Aluminum Rear
Chassis
Sealed Water Resistant Polypropylene
Sealed with non-slip gasketing. Tactile-Feel PTT Switch and
Silicon Rubber UP/DOWN Channel change keys. Special
styled internal electrel mike element.
5.6” x 2.2" x 4.9".
2 Lbs.
120 Total, 55 USA/55 INT'L (per Appendix 18), 10 Wx.
Extra Large LCD with backlighting.
Silicon Rubber Keypad with Individual Tactile-Feel Switches.
Manual Knob.
Manual Knob.
Phased Locked Loop (PLL).
13.8 VDC. Current drain - 5.5Amps @ 25W & 1.3 Amps
@ 1W.
Series Diode Reverse Polarity Protection.
10A In-line.
50 n . Mates with standard PL-259 connector. Chassis.
Grounded.
+/-10 PPM for both the Transmitter/Receiver.
MRU Memory. Channel 16/09 Priority Channel Selection,
Wx Alert, Memory Scan, All Scan, and Dual Watch.
3 Years.
25W/1W switchable.
16F3 for 100%
156.025Mhz - 157.425Mhz @ 25Khz spacing, 55 Channels
total.
43 + 10 Log l0 (Power) or 25pW, whichever is Greater.
6

Modulation Distortion:
Modulation Limiter:
Frequency Response:
Hum & Noise:
Less than 10 % @ IKhz for a +/-3Khz deviation.
5Khz deviation at 100% modulation
Matching a +6dB/Octave slope within +l/-3dB from 300 to
2500Hz. Audio Low Pass Filter is included.
Less than -40dB.
RECEIVER
Receive Frequencies:
Sensitivity:
Squelch Range:
Receiver Current:
IF Frequencies:
156.025Mhz - 163.275Mhz @ 25Khz spacing, 87 Channels
total.
0.30pV or less for 12dB SINAD.
0.30|iV to 0.80|iV @ full squelch.
.2Amps in Standby
1st IF2l.6Mhz.
2nd IF 455Khz.
Adjacent Channel Selectivity: Greater than -70dB for +/-25Khz.
Image Rejection: Greater than -70dB.
Intermodulation
Spurious Response: Greater than -70dB.
Noise Level: Greater than -40dB unsquelched.
Audio Frequency Response: Matching a -6dB/Octave slope within +l/-3dB from300 to
2500Hz.
Audio Output Power: 3W minimum @ 4 fi with less than 10% distortion.
External speaker works with internal speaker.
Specifications are subject to change without notice and are nominal unless otherwise indicated.
1.5 Supplied Parts
SE2510 Radio Transceiver
Mike Clip with screws
Mounting Knobs
Washers (2)
Mounting Bracket
Cable Assembly with fuse holder
Owner's Manual
Warranty Card
FCC Application-506
7

1.6 License Requirements
Pleasure boats (U.S. vessels), equipped with a marine radio, must have a Ship Station License.
Other vessels (including compulsory equipped vessels) may require a Ship Radio Station
License and a Commercial Radio Operator’s License to operate the radio station. If the ship
is not a U.S. vessel, contact the local authorities to determine licensing requirements.
When purchasing a new boat, you must apply for a new non-transferable "Ship Station
License" from the FCC. Therefore, upon the sale of your boat, the FCC requires that you
submit your old license for cancellation.
A change in mailing address requires notification to be filed with the FCC. This notification
is mailed to:
Federal Communications Commission
P.O. Box 1040
Gettysburg, PA 17326
1.6.1 License Application
The Ship Radio Station License is obtained by filling out and submitting the enclosed Form
506 with $75.00 to the FCC. DO NOT SEND CASH. This fee currently covers a 10-year
period. If you have any questions about this fee or latest FCC rulemaking updates, contact
the FCC Information Center at 1 -800-322-1117 for details. To operate the radio while waiting
for the license to be returned from the FCC, fill out and keep enclosed Form 506A. This
“Temporary Permit" is valid for 90 days from the date Form 506 is mailed to the FCC. The
Temporary Permit has instructions for assigning the vessel's temporary call sign. The call
sign for your station will be issued by the FCC on your official license.
If the ship’s radio station is to be operated in other countries, contact the local authorities for
their licensing requirements.
Mail Station License Application form to :
Federal Communications Commission
Marine Ship Service
P.O. Box 358275
Pittsburgh, PA 15251-5275
8

2.0 INSTALLATION
Before using the Shakespeare SE2510 Marine VHF radio, please study the following section.
Failure to adhere to these installation and operating considerations can damage or significantly
degrade the performance of your VHF radio, as well as void the warranty.
2.1 Unpacking And Inspection
The Shakespeare SE2510 Marine VHF radio comes to you 100% inspected. When unpacking,
check the parts shipped with the unit against the supplied parts list. If there is a discrepancy,
notify your selling agent or Shakespeare Customer Service (1-803-276-5504).
If the radio was damaged during shipment, save ALL packing material to make it easier to
file a claim with the carrier. All damage claims from shipment must be filed with the freight
carrier used to ship the radio to you within 10 days.
2.2 Mounting Preparation
Before actually mounting your new SE2510 Marine VHF radio, take a little time to read
over the installation instructions. You will find there are many things to take into consideration
before drilling that first hole. Planning every aspect of the installation first will save time
and aggravation. It will also save money by cutting down potential errors that require repair
to correct.
Before mounting begins, you will need to purchase a marine VHF radio antenna. Shakespeare
markets a full line of high quality marine VHF radio antennas to fit every installation. The
dealer you purchased this radio from will be able to help you choose the antenna style best
suited to your type of boating.
2 3 Mounting Location Selection
The following is a list of items that need advanced planning before selection of the mounting
location.
1. Find where the vessel’s +12 volt supply and ground are located and what it will take to get
the radio power cable assembly to it.
2. Where can the antenna be mounted and what must be done to route the antenna cable to
the radio? _
NOTE
Keep the antenna at least 3 feet away from the radio and as high as possible for best
performance. _

3. Where is the best place to mount the radio itself? Keep in mind that the radio may be table
top mounted, hang mounted overhead, bulkhead mounted vertically, or under counter
mounted.
4. When deciding on a mounting location, visibility of the front panel, access to the front
panel controls, access to the mounting knobs, room for rear cable connections and access
to rear cable connections must be addressed and planned.
2.4 Unit Mechanical Installation
Once a mounting location had been chosen, hold the mounting bracket at the place where the
unit is to be mounted. Use the mounting bracket as a template to mark the places to drill
holes for the mounting screws.
To mount the bracket to wood use stainless steel wood screws. If the unit is to be mounted on
fiberglass, use stainless steel nuts and through bolts as the vibrations found on most pleasure
boats will loosen self-tapping screws mounted directly into fiberglass.
When the mounting bracket is secured, attach the SE25I0 to the bracket using the mounting
knobs and washers supplied with the unit The washers should be inserted between the bracket
and knobs.
2.5 Electrical Connections
The back panel of the SE2510 comes with the following standard connections.
1. Power/Extemal Speaker Cable
2. Antenna Connector (for PL-259 type connections)
ANTENNA CONNECTOR POWER/EXTERNAL SPEAKER OUTPUT
Figure 2-1 Rear panel electrical connections
10

2.5.1 Power Hookup
The SE2510 is supplied with a cable assembly. The cable assembly has 4 wires, Red (+) and
Black (-) for power and Yellow (+) and Green (-) for an external speaker. The free end of
the Red (+) wire and Black (-) wire is connected to the battery side of the vessel’s +12 volt
power buss. The Red (+) wire is equipped with a 10-Amp special “Spring” style in-line fuse
holder for over-current protection. The Red (+) wire is connected to +12 volt buss. The
Black (-) wire is connected to the Negative or Ground side of ship’s power. After the Red
(+) and Black (-) wires are connected to ship’s power, plug the cable assembly into the
power/extemal speaker cable connector of the radio.
NOTE
Use at least 12-gauge wire to carry the transmit 5.5-Amp current. This wire size is
appropriate for up to 20 feet of cable length.
When powering up the SE2510 if no display appears once the power is turned on, check
the power cable hookup polarity if the in-line fuse is blown. Remember to replace the
fuse with one of the same 10-Amp rating. Using a fuse with higher rating can result in
permanent damage to the radio.
To
EXTERNAL SPEAKER
To
VESSEL’S
POWER BUSS
Figure 2-2 Power/external speaker cable and cable assembly
2.5.2 Antenna Connection
Plug the antenna cable PL-259 connector into the connector on the rear panel of the SE2510
Marine VHP radio. ALWAYS, screw down the outer coupling ring of the connector to
ensure a solid connection.
11

2.5.3 Coax Connector Assembly
BRAID OVER
ADAPTER
COUPLING RING
8!»p 5 Slap 9
Figure 2-3. Coax Connector Assembly
1. Trim back outer jacket of coax back 1-1/8".
2. Trim back the braided shield, 13/16".
3. Trim back center insulation 3/4”.
4. Slip coupling ring over cable.
5. Insert cable through the middle of the UG-175U adapter.
6. Fold the braided shield back over the end of the UG-175U adapter. Be sure there are no
shield wires touching the center conductor.
7. Screw the UG-175U adapter into the PL-259 connector while feeding the end of
the center conductor of the cable through the hole at the end of the plug.
8. Solder the center conductor of the coax to the center of the PL-259 connector.
Trim center conductor. Solder braided shield to the PL-259 connector via the small holes.
9. Screw coupling ring onto the PL-259 connector.
NOTE
If you are not sure about this procedure, have a qualified marine radio service technician
assist you.
12

2.5.4 External Speaker Connection
You can install an externa! speaker. The external speaker and internal speaker work to¬
gether. Purchasing and mounting of the speaker is left to the discretion of the owner as there
is a great variety of external speakers available, but be sure a 4 or 8 ohm model capable of 3
Watts is purchased. Shakespeare recommends the Models ES-2 or ES-4 for use with the
SE2510.
The Yellow (+) wire of the cable assembly is connected to the (+) terminal of the external
speaker. The Green (-) wire of the cable assembly is connected to the (-) terminal of the
external speaker (Refer to Figure 2-2).
13

3.0 OPERATION
The Shakespeare SE2510 Marine VHF radio was designed with the marine environment in
mind, with special attention paid to ease of operation. The following section is written to
help you realize the maximum benefit of your purchase. The SE2510 Marine VHF radio is
not only a convenience but a valuable tool in life threatening situations. This life saving
potential makes through study of this Owner’s Manual extremely important.
3.1 Controls And Display
All controls and displayed information can be found on the front panel of the SE2510. The
backlit LCD display shows selected channel, transmit power setting, and transmit mode.
The knob control power ON/OFF, speaker volume adjustment, selection of receive and
transmit channels, transmit power level, squelch adjustment. Dual channel watch, weather
channel access, USA or International channels and instant channel 16 or 9 priority select,
Scan (All Scan & Memory Scan), and Weather Alert. A single beep of the radio indicates a
valid keyboard entry. Three beeps mean an invalid entry-PLEASE TRY AGAIN.
Figure 3-1 SE2S10 Marine VHF Radio
14

3.2 Operating Procedures
3.2.1 Power and Volume Control
To apply power to the SE2510 VHF radio, turn the Volume Control knob (front left control
knob), clockwise. A “click” is heard and felt. At this point the display shows numbers and
annunciators.
The next thing to do is adjust the Squelch. To do this, turn the Squelch Control knob
counterclockwise until static is heard in the speaker. Now, the volume of the speaker can be
adjusted to a reasonable level by the Volume Control. Make this adjustment by turning the
volume control back and forth until you are comfortable with the background Noise level.
3.2.2 Display Backlighting
The backlighting of the display comes on when the SE2510 is powered up and stays on for
the entire time that the radio is on. There is no brightness adjustment.
3.2.3 Setting Squelch
To adjust the squelch setting, start by turning the Squelch Control knob (front right control
knob), all the way counterclockwise. Rotate the Volume Control knob until the static noise
heard in the radio speaker is at a comfortable level. Next, when no radio transmissions are
being heard, turn the Squelch Control knob clockwise just to the point that the static noise is
no longer heard. This quiets the static between received radio transmissions and still allows
the incoming messages to be heard.
The level of squelch adjustment needed to quiet the radio static noise is dependent on the
background static intensity. Keep in mind that the squelch many need to be adjusted when
listening to a different channel.
3.2.4 Channel Selection
Channel selection for the normal transmit/receive channels is handled by two separate sets
of controls. One set of channel selection arrow keys is found on the front panel directly to
the RIGHT of the LCD readout. The other set is found on the front of the microphone. The
current channel selection is viewed in the LCD display area.
To change channels using either set of arrows, simply press channel B or s arrow key.
Observe the changing channels in the LCD display area. If the channel displayed is a memory
channel that is stored in the radio's memory bank , the “MEM” annunciator will also be
displayed. From your present channel pressing 1^| arrow key will increase the channel
15

numbers. In the same respect, from your present channel pressing the 0 arrow key decreases
the channel numbers. If the highest or lowest channel available is reached and the pressing
of the arrow key is continued, the channel numbers will cycle around to the top or bottom of
the list and continue changing. Holding the @ or a changes the channel at a rapid rate.
Practice several times to become accustomed to this. Some channels have no TX function
(Channel 15). Please study the channel allocation list in the Appendix to become familiar
with the proper and customary usage.
3.2.5 U SA/Intemational Channel Bank Select
The SE2510 is programmed to access both United Stales and International channels. Which
set of channels you use is determined by the area of operation. Normally in U.S; coastal
areas and ports, the USA channels are selected.
To toggle between USA and International channels, press and hold the WX/INT| key for 2
sec. or more. The channel bank selected is indicated in the display.
3.2.6 Voice Transmitting
Until you have memorized the proper usage of each channel, refer to the Assignment
Appendices before attempting to make a voice transmission. There you will find a listing of
the channels and their usage.
Once the proper channel has been selected, locate the Push-To-Talk key on the sid e of the
microphone. The Push -To-Ta lk key will be referred to from here on as the j PI T | key. To
transmit, press and hold | Fir] for the entire transmission. While PTT is held down, speak
into the microphone slowly and clearly. When the transmission is complete, release the
PI T | key. While the | PTT | key is being held, ‘TX” appears in the LCD display window.
If the | PTT | key is pressed for more than 5 consecutive minutes, the voice transmission is
interru pted. “TX” in the LCD display disappears and the radio beeps until you release the
PTT [ key.
3.2.7 High/Low Transmit Power
The SE2510 has two transmit power levels, 1 Watt and 25 Watts. The low power level (1
Watt) is provided for situations where the two parties involved are close to each other. This
reduces the congestion on the same channel in areas far away, allowing more individuals to
use a channel at one given time . To toggle the power output selection between “LO” and
“HI” press and hold DW/1/25 key for 2 sec. or more. The transmit power output level is
displayed in the LCD display window.
16

3.2.8 T ransmitter 5-Minute Time Out
In the event that the |PTT| key is held i n for too long, the transmitter timer will disengage the
transmit function after 5 minutes. The |PTT | must be lifted and pressed again to continue
transmission. This is designed to prevent a channel from accidentally being tied up by a
malfunctioning microphone or transmitter.
3.2.9 W eather Channels Access
The SE2510 has the ability to monitor National and International weather service broadcast.
This safety feature allows you to listen to weather reports at any time so changes can be
made in your boating plans. This allows you to alert your planned course and to make
shipboard preparations.
To chan ge from stan dard marine VHF channels to the weather channel broadcast, press and
release [WX/1NT key. "WX" appears in the LCD display indicating weather channel
reception. The initial weather channel displayed, is the last one used. Use the channel change
arrow keys on the microphone or the front panel to select another weather channel.
To exit the weather channel, press and release |WX/INT
3.2.10 C hannel 16/9 Priority
As a convenience and safety feature, the SE2510 VHF radio has a channel [16/91 priority
key. Pressing this key from any mode or channel immediately changes the selected channel
to channel 16 or 9 with the power output changed to “HI".
Press and hold the |l6/9| for 2 sec. or more to toggle the priority channel. Channel 16 or 9 is
now me morized and displayed each time the | 16/91 key is pressed and released.
Pressing 116/9 [ key again goes to the last selected working channel.
3.2.11 C hannel 13/67 High Power Override
Due to the special usage, FCC assigned channels 13 and 67 are restricted to 1 Watt under
normal conditions. In some situations it is acceptable to override t his output le vel and transmit
on channels 1 3 and 67 at 25 Watts. To do this , press and hold the PW/1/25 key on the front
panel of the radio at the same time as PTT| is pressed for the duration of the transmission.
The LCD display shows “HI” in the display window while the
DW/1/25 key is held down.
Upon releasing the | DW/1/25| key, transmit output pow er drops back to 1 Watt. When
key toggles the transmit power
another marine VHF channel is selected, the
setting between 1 and 25 Watts, and does not have to be held in for “HI” power.
DW/1/25
17

3.2.12 D ual Watch Scanning
The Dual Watch feature allows you to monitor the priority channel 16 or 9, a normal working
channel, and the weather channel. Once the squelch is properly set, select a working channel
using the chan nel select aiT Ow keys on the front panel or front of microphone. Next, press
and release the DW/l/25 key. “DW” is annunciated in the LCD display and the scanning
operation starts. The channel display then changes between channel 16 or 9 and the working
channel until a squelch break occurs. The channel displayed at the time of the squelch break
is held in the display for 4 seconds after the end of the squelch break. In case of receiving a
weather alert signal or the weather channel, the alert tone beeps for 5 seconds and “ALM”
blinks on the LCD. To cancel WX alert press any other key.
Pushing the |PTT| key d isables the Dual Watch mode at any time. Als o, pressing th e channel
arrow keys, the channel [T6/9~| priority key, the | WX/INT | key or the |DW/1/25~| key turns
the Dual Watch mode OFF. Any other key press produces 3 beeps and results in no change
in current configuration.
3.2.13 Master Reset
If you hold down the |l6/91 key when turning the power on, all channels will be cleared from
memory showing “CL” on the display, and the weather channel will be automatically
programmed to channel 1. The LCD display shows CH16 USA.
3.2.14 All Channel Scan
When a chann el is selected without the “MEM” annunciator showing and the
SCAN/MEN | key is pressed, the radio will start scanning all channels, “SCAN" is
annunciated in the LCD display. If a signal is received, the scanning will stop (will hold on
displayed channel) until signal is no longer received . Then, after 4 seco nds it will co ntinue to
scan. To cancel the scanning, press any key except DW/1/25 key or | WX/INT] key.
3.2.15 Memory Scan
When the mem orized channel is selected with the “MEM” annunciator showing and the
SCAN/MEN key is pressed, the radio will start scanning the memorized channels. “MEM”
and “SCAN” are annunciated in the LCD display. If a signal is received, the scanning will
stop (will hold on displayed channel) until signal is no longer present. T hen, after 4 s econds
it will continue to scan. To cancel the scanning, press any key except | DW/1/25 key or
WX/INT key. To put a ch annel into memory, select an unmemorized channel and press
and hold the SCAN/MEN key for 2 sec. or more. “MEM” is now annunciated in the LCD
display.
18

To clear a memorized ch annel, select the channel to be cleared on the display, then press and
hold the
SCAN/MEN key more than 2 seconds. “MEM” disappears from the display.
3.2.16 External Speaker
When the external speaker is connected to the SE2510 the speaker on the front panel is not
disabled automatically. The volume is adjusted in the same way as it is for the front panel
speaker using the volume control knob.
3.3 Methods of Operation
The marine VHF radio channels are becoming ever increasingly crowded. This makes it
very important and every users responsibility to help relieve channel congestion through use
of professional radio techniques. Following the suggested rules will help everyone using
marine VHF.
1. Before transmitting, listen to the channel for traffic already in progress. This will stop you
from interfering with others using the channel ahead of you. Keep your transmissions as
brief as possible but still make your message understood.
2. Give distress calls PRIORITY unless you are in a position to help. Do not transmit but
continue to listen.
3. If there is no response to your call, wait 2 minutes before trying again.
4. Calls on channel 16 should be less than 30 seconds in length. Once contact is established,
switch to another channel that is more appropriate for your type of communication. Refer to
the Appendices on channel assignment for the correct channels to use. Use professional
terminology by referring to the Glossary and the phonetic alphabet found in Appendix E.
WARNING
If continuous HI POWER radio transmission exceeds 4-5 minutes, do not touch
the rear Die-Cast Heatsink. It will be hot to touch. This is expected normal operation.
Please note that the FCC regulations require a 5 minute transmitter time-out.
Release the radio’s Push to Talk key to reset the timer.
19