Midland Marine Nautico Usermanual

Nautico

Synthesized marine VHF Transceiver

OWNER’S MANUAL

ALAN Electronics GmbH

Page 1 of 16

Contents

1 INTRODUCTION........................................................................................................................ 3

2 FIRST AND FOREMOST… SAFETY!............................................................................................ 4

2.1 Symbols used ................................................................................................................................4

2.2 Warning..........................................................................................................................................4

2.3 Assistance .....................................................................................................................................4

3 DESCRIPTION OF THE PARTS.................................................................................................... 5

3.1 Description of the parts and commands........................................................................................5

3.2 Display symbols.............................................................................................................................6

4 PREPARATION......................................................................................................................... 7

4.1 Recharging the battery pack..........................................................................................................7

4.2 Memory effect of the rechargeable batteries.................................................................................7

4.3 Removal/attachment of the belt clip ..............................................................................................8

4.4 Removal/attachment of the battery pack.......................................................................................8

4.4.a Removal ............................................................................................................................................8

4.4.b Attachment ........................................................................................................................................8

5 BASIC OPERATIONS................................................................................................................. 9

5.1 Switching on/off .............................................................................................................................9

5.2 Volume regulation..........................................................................................................................9

5.3 Squelch regulation.........................................................................................................................9

5.4 MONI (monitor) button...................................................................................................................9

5.5 Channel selection..........................................................................................................................9

5.6 Transmission and reception...........................................................................................................9

5.7 Select high and low transmission power .......................................................................................9

5.8 Lighting the display ......................................................................................................................10

5.9 Keypad lock .................................................................................................................................10

5.10 Programming the CALL channel .................................................................................................10

6 SCANNING FUNCTIONS........................................................................................................... 11

6.1 All channel scanning....................................................................................................................11

6.1.a Skipping channels in scanning ........................................................................................................11

6.2 Dual Watch and Triple Watch......................................................................................................11

6.2.a Selecting Dual or Triple Watch........................................................................................................11

6.2.b Activating Dual/Triple Watch............................................................................................................11

6.3 Memory channels ........................................................................................................................12

6.3.a Using the memories.........................................................................................................................12

6.3.b Programming the memory channels................................................................................................ 12

6.3.c Recalling memory channels.............................................................................................................12

6.3.d Scanning memory channels ............................................................................................................12

7 TROUBLESHOOTING .............................................................................................................. 13

7.1.a Reset...............................................................................................................................................13

7.1.b Table of solutions ............................................................................................................................13

8 TECHNICAL SPECIFICATIONS.................................................................................................. 14

8.1 Transmitter...................................................................................................................................14

8.2 Receiver.......................................................................................................................................14

9 TABLE OF FREQUENCIES........................................................................................................ 15

Page 2 of 16

1 INTRODUCTION

Congratulations! Your Nautico handheld transceiver is provided with all of the main characteristics of quality, robustness
and reliability that the most advanced technology can offer; it can moreover, be immersed to a depth of 1 meter for 30
minutes. Nautico lets you transmit and receive on all international channels included in the marine VHF band in full
security, as established by the International Telecommunications Union (ITU). This transceiver consists of high quality
electronic components and conforms to the “JIS7” specifications and commercial standards guaranteeing clear, reliable
communication, and many years of perfect functionality. Nautico is controlled by a microprocessor that allows you to
obtain advanced characteristics and services. The microprocessor not only controls the tuning of the marine band, but
also advanced functions such as Dual and Triple Watch, memory channels and much more.

These are the main characteristics of your transceiver:

• PLL (Phase Locked Loop) synthesizer circuit – allows precise and stable channel selection.

• Backlighted LCD display – constantly indicates the parameters and settings programmed on the unit, even in

places with little ambient light.

• Squelch Regulation – in the pauses between transmissions, it eliminates irritating background noise also reducing
power consumption when receiving.

• Channel 16 recall button – allows instant access to channel 16 (the universal marine channel that is used most
frequently, also as the emergency channel).

• CALL button – lets you quickly recall your favorite channel.

• High/low power selector – allows you to save energy by reducing transmission power in short distance

communications.

• Keypad lock – locks the keys to avoid accidental programming.

• Battery weak indicator – it appears when the battery pack is getting discharged.

• Desktop charger as standard – lets you easily recharge the battery pack, separately or installed in your

transceiver.

• Speaker and microphone jacks – through these sockets you can connect suitable external devices (headphones,
microphone/speaker etc.) for easier use, above all in noisy environments.

• Dual and Triple Watch – allow you to monitor channel 16 while listening to another synthesized channel (Dual
watch) and do the same with the CALL channel (Triple Watch)

• Scanning: automatically searches for the signals in the marine band.

• 10 memory channels – you can store the 10 channels that you use most, recalling them in the blink of an eye and

also carry out the scanning process.

2 Note: the manufacturer, in constantly trying to improve the product, reserves the right to change features without

any notice in advance.

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2 FIRST AND FOREMOST… SAFETY!

2.1 Symbols used

For quick and rational reading we have used symbols to highlight areas that need your maximum attention, or offer
practical advice or simple information.

! Notes like these, marked with an exclamation mark, highlight a very important description regarding

technical interventions, dangerous conditions, safety warnings, prudent advice and/or very important
information. Ignoring these could cause serious problems and/or damage and/or personal injury.

2 Notes like these, labeled with a memo note, constitute important practical advice that we suggest following to obtain

the most from the unit.

2.2 Warning

! AVOID TRANSMITTING WHEN THE ANTENNA IS NOT CONNECTED – even though the unit is protected, it

can seriously damage the power stages of transmission.

! Keep the antenna at least 2,5 cm from your head and body when transmitting and do not use your

transceiver if the antenna is damaged.

! Do not hold the unit by its antenna! It is very delicate and important for the correct functioning of the

device.

! PAY ATTENTION TO ATMOSPHERIC CONDITIONS- even though Nautico is designed to operate in the most

severe conditions, try not to expose it to excessively humid, dusty environments and to temperatures
outside the range of -20 to +50°C°. Above all avoid exposure to direct sunlight.

! AVOID EXCESSIVE IMPACTS AND VIBRATIONS, the unit is built to support impacts and vibrations,

provided that they are in the norm of any other electronic device.

! Do not use this device and/or change the batteries in potentially explosive atmospheres. One single spark

could cause an explosion.

! BATTERIES – Observe all the precautions on how to use the batteries described in chap. 4.1.
! DO NOT OPEN THE RADIO FOR ANY REASON, the precise mechanism and electrics of which the unit is

composed require experience and equipment; for the same reason the radio should absolutely not be
readjusted, as it has already been calibrated in the factory to provide the maximum service. The opening of
the transceiver by un-authorized personnel will automatically invalidate the guarantee.

! Do not use alcohol, solvents or abrasive materials to clean the unit. Only use soft and slightly damp cloths.

For tougher dirty use a mild detergent.

! Your Nautico handheld marine transceiver incorporates a radio transmitter. Be aware that, when you press

the PTT button, you are radiating radio frequency signals (RF).

2.3 Assistance

We advise you to write the serial number of your transceiver in the space below. You will find this number on the back of
the transceiver. This will be needed in case of assistance and/or loss and/or theft of the unit.

Serial number_______________________

Page 4 of 16

3 DESCRIPTION OF THE PARTS

2 3 4 5 6 8 7 10 11 14 13 12 15 16 17 18 9

3.1 Description of the parts and commands

Make reference to the following images to localize the various parts of the unit and familiarize yourself with them:

1

1) Antenna – needed to receive and transmit radio signals

2) MONI (monitor) button – temporarily excludes squelch to receive even extremely weak signals

3) PTT (press to talk) button – pressing this button accesses transmission from the equipment

4) MEMO/M.PRG button– recalls and stores the most used marine channels

5) SCAN/DUAL button – if held down, it activates channel scanning/if pressed briefly, it activates Dual or Triple
Watch

6) CALL button – recalls the preferred CALL channel from the memory

7) Speaker/Microphone sockets (protected) – allow connection to external devices (headphones, microphones
etc.)

8) VOLUME control – switches the unit on/off and regulates the audio volume when receiving

9) LCD Display – the LCD (liquid crystal) display constantly indicates the operating state of the device and functions
used

10) CH/SQL/ button– used to move the tuning toward the higher marine channels and increase the squelch level

11) LOCK/LIGHT button– temporarily locks the keys/activates the display’s backlight

12) HI/LO/BAND button – selects low or high transmission power, holding down the MONI button.

13) Button 16 – used to instantly recall channel 16

14) CH/SQL/ button - used to move the tuning toward the lower marine channels and reduce the squelch level

15) Integrated speaker/microphone - the transmission microphone and reception speaker are located here

16) Belt clip – Used to easily attach the unit to your belt during transportation

Page 5 of 16

17) Rechargeable battery pack – supplies power to the handheld transceiver

18) Battery pack charging contacts – used to connect to the charger supplied

3.2 Display symbols

Your marine transceiver uses an LCD (liquid crystal display) to keep you constantly informed of its operating state. The
following symbols and parameters may appear from time to time:

A) FUNC: appears when the “Function” mode is activated (hold down the MONI button).
B) TRI: the transceiver is carrying out the Triple Watch.
C) SCAN: the unit is scanning channels.
D) L (Lockout): indicates that the currently selected channel is skipped in the scanning.
E) MEMO: indicates that you are using your favorite memory channels.
F) These two small digits indicate the memory channel selected, or SL during squelch regulation.
G) The battery symbol lets you know that the battery pack is running low.
H) The key symbol indicates that the keypad lock is activated.
I) INT: clarifies that the selected channels are international.
J) These two large digits indicate the marine channel currently selected, or the squelch level during regulation.
K) LO (Low): indicates that you have selected low transmission power.
L) TX: appears when you are transmitting (PTT button pressed).
M) CALL: indicates that you are using the priority CALL channel.
N) BUSY (channel busy): appears on the display when the transceiver is receiving a signal.
O) DUAL: the transceiver is carrying out the Dual Watch.

Page 6 of 16

4 PREPARATION

Before using your transceiver, you must be certain that the package includes:

• Transceiver

• 12 VDC Ni-MH rechargeable battery pack

• AC charger cradle complete with power cable

• Antenna

• Belt clip

• User’s manual

If there is something missing or damaged, please contact your supplier immediately.

2 Note. According to the version, the belt clip and rechargeable battery pack may already be installed in the

transceiver

Before going any further, be certain that:

• The 12VDC Ni-MH battery pack supplied is attached to the unit. If it isn’t, please make reference to par. 4.4.

• The antenna is connected, by means of the appropriate SMA connection.

• The unit is switched off.

4.1 Recharging the battery pack

The battery pack supplied is a 12V Ni-MH type and can be charged both when it is attached to the transceiver, and when
it’s separated from the unit; 14 -15 hours are necessary to recharge it completely.

To recharge the battery pack:

1) Insert the plug on the charger cable into a AC mains supply power socket and the other end into the socket found
on the charger cradle.

2) Place the battery pack or the transceiver firmly into the cradle: charging will then start and will be indicated by a
glowing LED light.

3) When charging has finished, remove the battery pack or transceiver from the cradle and disconnect the charger
cable from the AC mains supply power socket.

! Warning! Do not overcharge the batteries! When the battery pack is completely charged, the charging

process doesn’t stop automatically. Therefore do not forget to extract the battery pack or transceiver from
the charger as soon as the necessary time has passed, otherwise you could damage the batteries and/or
the transceiver.

! Warning! The use of non genuine chargers or batteries can cause damage to your unit or cause explosions

and personal injuries.

! Warning! Never throw the batteries onto a fire, or leave them near heat sources: they can cause explosions

and personal injuries. To dispose of the batteries always follow local norms.

4.2 Memory effect of the rechargeable batteries

The Ni-MH (Nickel-Metal-Hydrate) rechargeable batteries are virtually without what they call “memory effect”. This effect
demonstrates a drastic reduction in the battery duty and can be triggered off if systematically, you recharge the battery
pack before it has totally discharged and/or you do not recharge it completely. To avoid the symptoms of memory effect:

• When possible, only recharge the battery pack when it’s completely discharged (i.e. when the device switches
itself off in normal use)

• Do not disconnect the charger before the necessary time to fully recharge the batteries.

• Provide to fully discharge and recharge your battery pack at least twice a month.

In each case, the best solution to avoid memory effect is to use two battery packs in rotation: one in use and one spare.
To eliminate memory effect, simply fully discharge the batteries and charge them three or four times.

2 Note: Memory effect should not be confused with the normal battery life that is on average 300-400 cycles of

charging and discharging. It is normal that the battery duty is reduced when the batteries are reaching the end of
their life cycle, in this case please change the battery pack.

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4.3 Removal/attachment of the belt clip

The standard rear clip allows you to attach the transceiver easily to your belt. Nevertheless this has to be removed when
you have to remove the battery pack. To remove the belt clip, unscrew the screw, (1) in the figure. To reattach the clip to
the unit, place it in the appropriate slot on the back of the transceiver, and screw it into place with the provided screws.

! Warning! Use a suitable screwdriver to avoid damaging the screws and pay attention that you tighten them

with the right amount of force to guarantee a good attachment without damaging the thread. Only use the
screws supplied.

4.4 Removal/attachment of the battery pack

4.4.a Removal

1) Remove the belt clip as explained in par. 4.3

2) Unscrew the screw marked (2), which attach the battery pack to the unit

3) Remove the battery pack from the unit.

4) Reattach the belt clip.

4.4.b Attachment

1) Remove the belt clip as explained in par. 4.3

2) Insert the battery pack into the appropriate slot on the unit.

3) Fix the battery pack into place using the screw marked (2)

4) Reattach the belt clip.

! Warning! Use a suitable screwdriver to avoid damaging the screws and pay attention that you tighten them

with the right amount of force to guarantee a good attachment without damaging the thread.

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5 BASIC OPERATIONS

5.1 Switching on/off

To switch the transceiver on, rotate the VOLUME dial clockwise until you hear a click: the LCD display will then come
on. To turn the transceiver off, rotate the dial anticlockwise until you hear the click again: the LCD display will then go off.

5.2 Volume regulation

Bring the VOLUME dial to the halfway level and, as soon as you receive a signal, regulate the volume to a comfortable
level. If you do not receive a signal, you can use the MONI button described in par. 5.4

5.3 Squelch regulation

Squelch is needed to eliminate the background noise that you hear in the absence of received signals. If you regulate
squelch correctly, while waiting for a call you will have silent operation and you will reduce the power drain of the battery
pack.

To regulate squelch:

1) Holding down the MONI button, also press the CHL/SQL (UP) or CHL/SQL (DOWN) buttons respectively to
increase or reduce the level.

2) Regulate squelch on the lowest level possible to make the noise you hear in the absence of received signals
disappearing. The display shows squelch settings from 00 to 08.

3) Release the buttons

2 Note: If you regulate the squelch level too high (closed), you will only be able to listen to transmissions with strong

signals, while if it’s too low (open), you will hear background rustling or intermittent disturbances. Above all, the
correct squelch setting is also important for further functions explained later on.

5.4 MONI (monitor) button

The Monitor button allows you to temporarily exclude squelch so that it is possible to listen to extremely weak signals that
will not open stably. In this way you will avoid hearing such these communications broken up. To activate the monitor
function, press and hold down the MONI button to listen to all radio traffic on the channel selected. Release the MONI
button when you have finished listening.

5.5 Channel selection

Press the CHL/SQL or CHL/SQL button respectively to scroll up or down through the channels until you find the
desired channel.

2 Note: the marine band does not provide a certain channel numbers. Refer to the frequency table in chap. 9. Above

all, channels can have a reception frequency different to the transmission one (duplex channels), or the same
(simplex channels). Normally, communication between boats can only take place on simplex channels.

5.6 Transmission and reception

The PTT (Press To Talk) button is found on the upper part of the left side of your Nautico. To transmit:

1) Ensure that the channel selected is not dedicated to signal reception only (in this case transmission will be
inhibited) and that nobody else is talking.

2) Hold down the PTT button firmly: TX will appear on the display.

3) Wait for a fraction of a second and then talk normally at a distance of around 5 cm from the speaker/microphone
of the transceiver.

4) When you have finished, release the PTT button: TX will disappear from the display.

5) When the unit is receiving (PTT button released) you will automatically receive any communication.

2 Note: during transmission and reception operations, try to keep the antenna in a vertical position as much as

possible and make sure that there are no obstacles in the direction of the other party.

5.7 Select high and low transmission power

The transmission phase is what absorbs the most energy from the batteries. To extend the battery duty, you can select
low transmission power when you only have to transmit in short distances. To do it, hold down the MONI button and also

Page 9 of 16

press the HI/LO/BAND button: LO appears on the screen. If you want to transmit to long distances or with weak signals,
press the buttons again in sequence to select high power: LO will disappear. With the standard 12 V battery pack, high
power is 5 watt, and low power 1 watt.

5.8 Lighting the display

If ambient light is not sufficient to let you read the display well, press the LOCK/LIGHT button: it will be lighting for 5
seconds. If you want to switch off the backlight within this time, press the above mentioned button again.

2 Note: lighting of the display absorbs supplementary energy from the batteries. Try to use it in moderation.

5.9 Keypad lock

You can lock the keypad on your transceiver to avoid unwanted commands through accidentally pressing buttons during
transportation.

To activate the keypad lock, hold down the MONI button, then press the LOCK/LIGHT button: the key symbol appears on
the display. This function disables all of the keys apart the MONI, PTT, 16 and LIGHT/LOCK keys. To activate the keys
repeat the same process carried out to lock them.

5.10 Programming the CALL channel

The CALL button is used to instantly recall the priority channel of your choice. This should be previously programmed as
follows:

1) Press the CALL button. CALL appears on the display.

2) Hold down the MONI button, then press CALL: The display flashes to indicate that you are in the programming
phase.

3) Release all of the buttons.

4) Press the CHL/SQL or CHL/SQL buttons to select the desired CALL channel.

5) Hold down the MONI button, then press CALL to store the CALL channel.

2 Note: The factory preset CALL channel is 09.

Page 10 of 16

6 SCANNING FUNCTIONS

6.1 All channel scanning

Nautico can automatically search for signals of all channels on the marine band by carrying out “scanning”, which rapidly
selects them in sequence. When a signal is found, scanning stops and remains locked until the end of the signal, then it
waits a few seconds before automatically restarting to give you the chance, if necessary, to answer a call.

Nautico has priority scanning on channel 16: this channel is periodically controlled to verify any activity on it and to allow
quicker responses compared to the other channels.

To carry out scanning of the marine channels, hold down the SCAN/DUAL button for approximately 3 seconds: Nautico
starts to carry out channel scanning and SCAN appears on the display.

To stop scanning, press the SCAN/DUAL button again, your transceiver will remain on the currently selected channel.

2 Note: scanning will not work properly if the squelch level has not been correctly regulated as described in par. 5.3.

6.1.a Skipping channels in scanning

This function is useful to skip channels that are of little interest to you, that are constantly busy and that needlessly stop
scanning. Above all, skipping channels lets you shorten the scanning cycle and monitor each channel more frequently.

To skip channels in scanning:

1) Select the channel to skip

2) Press the MONI and SCAN/DUAL buttons at the same time: L appears on the display to indicate that the channel
has been skipped in scanning.

To reinsert the channel into the scanning cycle, repeat the procedure described above: the L symbol will disappear from
the display.

6.2 Dual Watch and Triple Watch

With these terms we mean:

• Dual Watch – the possibility to remain tuned on a channel of your choice, automatically verifying from time to
time if there is a signal on channel 16.

• Triple Watch – the possibility to remain tuned on a channel of your choice, automatically verifying from time to
time if there are signals on channel 16 and the CALL channel.

6.2.a Selecting Dual or Triple Watch

1) Switch off the unit

2) Hold down the MONI button and switch on the unit.

3) When the display shows characters/symbols, release the MONI button.

4) Press the CHL/SQL or CHL/SQL buttons until “02du” (for Dual Watch) or “03tr” (for Triple Watch) appear
on the display.

5) Press the 16 button or switch off the transceiver to store the program.

6.2.b Activating Dual/Triple Watch

To carry out Dual or Triple Watch press briefly the SCAN/DUAL button: the transceiver starts to carry out channel
scanning using the method programmed in par. 6.2.a. and “DUAL” or “TRI” appears on the display.

As when scanning the marine channels, Dual or Triple Watch stop when they find a signal on one of the channels
explored and remain locked for a few seconds after the signal has disappeared to give you the chance, if necessary, to
answer a call.

To leave Dual or Triple Watch, press the SCAN/DUAL button again.

2 Note: Dual/Triple Watch will not work properly if the squelch level has not been correctly regulated as described in

par. 5.3.

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6.3 Memory channels

6.3.a Using the memories

The transceiver has 10 memory channels available (from 00 to 09) into which you can store the channels that you use
most frequently. In this way you can recall them more rapidly, as well as by carrying out scanning.

6.3.b Programming the memory channels

To store channels in the memory proceed as follows:

1) Press the MEMO/M.PRG button.

2) Hold down the MONI button, and then press the MEMO/M.PRG as well. The number of the memory currently
selected (00-09) starts to flash.

3) Press the or buttons to select the desired memory channel.

4) Press the MEMO/M.PRG button: the number of the marine channel starts to flash.

5) Press the CHL/SQL or CHL/SQL buttons to select the desired marine channel and store it in the previously
selected memory channel.

6) Hold down the MONI button, then press the MEMO/M.PRG as well to store the marine channel in the memory
channel selected and leave the programming phase.

7) To store further channels in the memory, repeat the steps described above.

8) Press the MEMO/M.PRG button to leave the memory channels.

6.3.c Recalling memory channels

To select a memory channel:

1) Press the MEMO/M.PRG button: the small numbers on the right of the display indicate the currently selected
memory channel (from 00 to 09), while the larger numbers on the left show the number of the marine channel
stored in it.

2) Press the CHL/SQL or CHL/SQL to select the desired memory.

3) To leave the memory channels and restore the transceiver to normal use, press the MEMO/M.PRG button again.

6.3.d Scanning memory channels

To carry out scanning of the marine channels stored in the memory:

1) Press the MEMO/M.PRG button

2) Press and hold down the SCAN/DUAL button until SCAN appears on the display: the transceiver will scan the
channels stored, stopping itself when it receives a signal.

3) Release the buttons.

To leave, press the SCAN/DUAL button again.

2 Note: memory channel scanning will not work properly if the squelch level has not been regulated correctly as

described in par. 5.3.

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7 TROUBLESHOOTING

Your Nautico should guarantee you years of perfect functioning. If nevertheless, it presents a problem, please make
reference to this chapter before turning to the assistance center in your area.

7.1.a Reset

If your transceiver presents a logical malfunction (inconsistent symbols on the display, blocking of functions etc.), the unit
may not be faulty, but it may be a problem caused by external factors, for example a wrong setting induced by some
disturbance in the electrical network while charging the batteries. In this case, you can restore the transceiver to its
factory conditions by canceling the memory channels and restoring the default settings using the reset mode:

1) Switch off the transceiver

2) Hold down the MEMO/M.PRG or the LIGHT/LOCK button, then switch on the transceiver: all the settings will be
reset back to the default ones, for example the unit will be set on INT CH1, the CALL channel will be on CH09,
the squelch level will be on 02, etc.

2 Note: before resetting the unit, we suggest that you make a note of all the settings you have changed as they will all

be cancelled.

7.1.b Table of solutions

Problem Possible cause Solution Refer.

The unit will not switch on

The unit is switched on, but
does not receive a signal

You cannot make contact with
another party

The reception is broken up
and/or disturbed

The battery yield is low

Scanning and/or Dual/Triple
Watch are malfunctioning
Logical malfunctions
(inconsistent symbols on the
display, blocking of functions
etc)

The battery pack is weak and/or is not
inserted correctly

The antenna is not connected correctly
The volume level is too low Regulate the volume level 5.2

The squelch level is too high Regulate the squelch level 5.3
Wrong marine channel selected
The squelch level is too high Regulate the squelch level 5.3

The signal is extremely weak Try pressing the MONI button 5.4
The other party is too far away and/or
obstacles in the direction of the other party
shield the antenna of the transceiver.
Other parties are using the same radio
channel
Nautico is positioned too close to interfering
unit (televisions, computers, transmitters
etc.).
The squelch level is not well regulated Regulate the squelch level 5.3
Excessive use of the display backlight Illuminate the display less 5.8

Excessive transmission use
Memory effect of the battery pack Eliminate the memory effect 4.2
The squelch level is not regulated well Regulate the squelch level 5.3

Wrong setting induced by some noise in the
power supply

Verify that the battery pack is recharged and
inserted correctly
Verify the correct connection of the antenna
via the appropriate SMA connector

Verify the marine channel selected and
change it if necessary

Move closer to the other party and/or position
the transceiver in a less shielded area.

Verify radio traffic on the channel used and
change it if necessary

Move Nautico away from the interfering unit.

Try to reduce transmission times and/or use
low power

Carry out the reset procedure 7.1.a

4.1

4.4

5.5

5.6

5.7

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8 TECHNICAL SPECIFICATIONS

Channels...................................................................................................................... All international channels

Frequency generation .................................................................................................................PLL synthesizer

Frequency range............................................................................................. TX from 156,025 to 157,950 MHz

................................................................................................................................ RX 156,300 to 162,025 MHz

Antenna impedance ................................................................................................................................ 50 Ohm

Power source .......................................................................................................................... from 7,2 to 12 VDC

Operating temperature .............................................................................................................. from -20° to +50°

Size (with 12V battery pack) ....................................................................... 130,4×58×35 mm (HxLxW)

Weight (with 12V battery pack)......................................................................................................... 355 g

8.1 Transmitter

Output power................................................................................................................0,6 or 5 Watt (Selectable)

Type of modulation..........................................................................................................................................FM

Hum and noise reduction .............................................................................................................................34dB

Audio distortion................................................................................................................................................5%

Spurious reduction .......................................................................................................................................70dB

8.2 Receiver

Sensitivity @ 12dB Sinad............................................................................................................................0,5µV

S/N ratio (20dB)...........................................................................................................................................0,8µV

Squelch sensitivity......................................................................................................Threshold -12dBµV (EMF)

Adjacent channel rejection ...........................................................................................................................70dB

Audio output power ............................................................................................................. 200mW to 10% THD

Intermediate frequencies.........................................................................................1st: 21,6 MHz – 2nd: 455 KHz

Spurious reduction .......................................................................................................................................70dB

Hum and noise reduction ............................................................................................................................40dB

Acceptable modulation bandwidth...........................................................................................+/- 7KHz minimum

Connection for ext. speaker/microphone................................................................................jack stereo 2,5 mm

Specifications are subject to change without any prior notice.

Page 14 of 16

9 TABLE OF FREQUENCIES

USA INT

Channel

TX RX Mode Note
01A 156.050 156.050 S 01 156.050
02A 156.100 156.100 S 02 156.100
03A 156.150 156.150 S 03 156.150
04A 156.200 156.200 S 04 156.200
05A 156.250 156.250 S 05 156.250

06 156.300 156.300 S 06 156.300 156.300 S

07A 156.350 156.350 S 07 156.350

08 156.400 156.400 S 08 156.400 156.400 S
09 156.450 156.450 S 09 156.450 156.450 S
10 156.500 156.500 S 10 156.500 156.500 S
11 156.550 156.550 S 11 156.550 156.550 S
12 156.600 156.600 S 12 156.600 156.600 S
13 156.650 156.650 S 13 156.650 156.650 S
14 156.700 156.700 S 14 156.700 156.700 S
15 156.750 156.750 S * 15 156.750 156.750 S *
16 156.800 156.800 S 16 156.800 156.800 S

17 156.850 156.850 S * 17 156.850 156.850 S *
18A 156.900 156.900 S 18 156.900
19A 156.950 156.950 S 19 156.950

20 157.000

21 157.050

22 157.100

23 157.150

24 157.200

25 157.250

26 157.300

27 157.350

28 157.400

60A 156.025 156.025 S 60 156.025
61A 156.075 156.075 S 61 156.075
62A 156.125 156.125 S 62 156.125

63A 156.175 156.175 S 63 156.175
64A 156.225 156.225 S
65A 156.275 156.275 S 65 156.275
66A 156.325 156.325 S 66 156.325

67 156.375 156.375 S

68 156.425 156.425 S 68 156.425 156.425 S

69 156.475 156.475 S 69 156.475 156.475 S

70 156.525 156.525 S 70 156.525 156.525 S

71 156.575 156.575 S 71 156.575 156.575 S

72 156.625 156.625 S 72 156.625 156.625 S

73 156.675 156.675 S 73 156.675 156.675 S

74 156.725 156.725 S 74 156.725 156.725 S

75

76

77 156.875 156.875 S 77 156.875 156.875 S

Frequency (MHz) Frequency (MHz)

161.600

161.650

161.700

161.750

161.800

161.850

161.900

161.950

162.000

D
D 21 157.050
D 22 157.100
D 23 157.150
D 24 157.200
D 25 157.250
D 26 157.300
D 27 157.350
D 28 157.400

Channel

20 157.000

64 156.225

67 156.375 156.375 S

TX RX Mode Note

160.650

160.700

160.750

160.800

160.850

160.950

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

D
D
D
D
D

D

D
D
D
D
D
D
D
D
D
D
D

D
D
D

D
D
D
D

Page 15 of 16

USA INT

Channel

TX RX Mode Note
78A 156.925 156.925 S 78 156.925
79A 156.975 156.975 S 79 156.975
80A 157.025 157.025 S 80 157.025
81A 157.075 157.075 S 81 157.075
82A 157.125 157.125 S 82 157.125
83A 157.175 157.175 S 83 157.175

84 157.225
85 157.275
86 157.325
87 157.375

88A 157.425 157.425 S 88 157.425

*= 1Watt transmission

Frequency (MHz) Frequency (MHz)

161.825

161.875

161.925

161.975

D 84 157.225
D 85 157.275
D 86 157.325
D 87 157.375

55/13D/42S

Channel

TX RX Mode Note

161.525

161.575

161.625

161.675

161.725

161.775

161.825

161.875

161.925

161.975

162.025

D
D
D
D
D
D
D
D
D
D
D

55/35D/20S

Page 16 of 16