Dynascan P-72 User manual

English
VHF/UHF DUAL BAND FM
RADIOAMATEUR MOBILE
TRANSCEIVER
USER´S MANUAL
D
DY YN NA AS SC CA AN N
P
P- -7 72 2

English - 2 -
INDEX 1 of 2
Page no.
1.-
DEFINITIONS
4
2.-
INTRODUCTION
5
3.-
SAFETY CAUTIONS
5
4.-
MAINTENANCE
5
5.-
INSTALLATION
6
5.1.- MOBILE INSTALLATION
6
5.2.- CONNECTING THE DC POWER CABLE
7
5.2.1.- Mobile installation
7
5.2.2.- Fixed station installation
8
5.2.3.- Replacing the fuse
8
5.3.- ANTENNA INSTALLATION
9
5.4.- ACCESSORIES INSTALLATION
9
5.4.1.- Speaker-microphone or headset + MIC
9
5.4.2.- Microphone
10
5.4.3.- Keypad operations
10
6.-
GETTING ACQUAINTED
11
6.1.- FRONT PANEL
11
6.2.- LCD DYSPLAY
13
6.3.- REAR PANEL
14
6.4.- SPEAKER-MICROPHONE
15
6.5.- DEFINABLE KEYS ON SPEAKER-MICROPHONE
16
6.6.- SELECT THE OPERATING BAND
17
6.7.- FREQUENCY INPUT METHOD
17
7.-
BASIC OPERATIONS
18
7.1.- SWITCHING THE POWER ON/OFF
18
7.2.- VOLUME SETTING
18
7.3.- MUTE MODE
19
7.4.- SQUELCH LEVEL SETTING
19
7.5.- SELECT THE TRANSMISSION BAND
19
7.6.- SINGLE BAND / DUAL BAND OPERATION
20
7.7.- SELECT THE OPERATING BAND / DISPLAY MODE
21
7.8.- CALLING CHANNEL MODE
21
7.9.- TRANSMITTING
21
8.-
SETTINGS MENU
22
8.1.- MENU ACCESS
22
8.2.- SETTINGS MENU TABLE
23
8.3.- CHANNEL NAMING
25
8.4.- CHARACTER INPUT FROM MICROPHONE KEYPAD
25
8.5.- OPERATION VIA REPEATER
26
8.5.1.- Offset programming
26
8.5.2.- Offset direction
26
8.5.3.- Offset step range
27
9.-
ADVANCED OPERATIONS
27
9.1.- KEYPAD OPERATION AND DESCRIPTION
27
9.2.- KEYPADS COMBINED OPERATION AND DESCRIPTION
28
9.3.- TO DELETE THE MEMORY CHANNEL
28

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INDEX 2 of 2
Page no.
9.4.- TURN ON/OFF THE CTCSS/DCS
29
9.5.- TO CHOOSE CTCSS TONE OR DCS CODE
29
9.6.- REVERSE FUNCTION
30
9.7.- TO STORE FREQUENCY ON MEMORY CHANNEL
31
9.8.- FM RADIO OPERATION
32
9.8.1.- FM radio frequency
32
9.8.2.- Stored FM radio frequencies
32
9.8.3.- FM mode manual/auto
33
9.8.4.- Audio output mode
33
9.8.5.- FM volume setting
33
9.9.- SCAN
33
9.9.1.- Scan ON/OFF
34
9.9.2.- VFO scan
34
9.9.3.- Channel scan list
34
9.9.4.- Scan OFF
35
9.9.5.- Scan mode
35
9.9.6.- Scan list
35
9.9.7.- Scan list operation
35
10.-
TECHNICAL SPECIFICATIONS
36
10.1.- GENERAL
36
10.2.- TRANSMITTER
36
10.3.- RECEIVER
36
11.-
TROUBLESHOOTING
37
12.-
DECLARACION OF CONFORMITY
38
13.-
GUARANTEE
39

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1.- DEFINITIONS:
Restrictions can exist for the use this equipment in any European Union member
states, for more information it consults with their salesperson or
Telecommunication Authorities.
Member states of the European Union where this equipment may be used:
BE
BG
CZ
DK
DE
EE
IE
EL
ES
FR
HR
IT
CY
LV
LT
LU
HU
MT
NL
AT
PL
PT
RO
SI
SK
FI
SE
UK
This equipment complied whit Directive 2012/19/EU on waste electrical and electronic
equipment (WEEE). This means that this product must be disposed of at a designated
collection point for the recycling of waste electrical and electronic equipment, with the
intention of being either recycled or dismantled in order to reduce any impact on the
environment. For more information, please contact your distributor, salesperson or
regional administration.
Electronic products that have not been disposed of in this way are potentially dangerous for the
environment and public health due to the possible presence of dangerous substances.
This equipment complied with Directive 2011/65/EU on the restriction of the use of
certain hazardous substances in electrical and electronic equipment (RoHS). The
restricted substances are: Lead (<0.1%); Mercury (<0.1%); Hexavalent chromium
(<0.1%); PBB (<0.1%); PBDE (<0.1%); Cadmium (<0.01%).

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2.- INTRODUCTION:
● PIHERNZ COMUNICACIONES, S.A. he thanks for purchasing this transceiver. We appreciate
your trust in our products and believe that its easy operation function would well serve your diverse
communication needs.
●This User´s Manual has been created with the intention of supplying as much information as
possible. PHERNZ COMMUNICACIONES, S.A. is not responsible for any omissions or any errors
in printing or translation.
● It´s prohibited totally or partially reproduces this User´s Manual without prior written
authorization from PHERNZ COMUNICACIONES, S.A.
3.- SAFETY CAUTIONS:
● Turn OFF the transceiver in explosive environments (gas, dust and smoke, etc.). Turn OFF the
radio while refueling or parking in the gas station. If you transceiver is installed in the car´s rear
luggage compartment, don´t put the spare fuels in the trunk.
● Don´t operate the transceiver when you are located near to the antenna in order to avoid
electromagnetic fields.
● In blasting areas, detonators, explosives, for 150 meter (500 feet) of the detonators can lead to
explosion. Turn OFF the transceiver before access a blasting area.
●Don´t try to set the transceiver while driving a vehicle, otherwise it will lead to dangerous
consequences.
● Do not transmit with the radio at high transmission power for a long time to prevent overheat in
to transceiver.
●Don´t attempt to disassemble or repair the transceiver yourself.
●Don´t put the transceiver directly to the sunlight for a long time and do not put it near the heating
devices.
●Don´t put the transceiver on the high humidity, splashing water and not place it to unstable
surfaces.
●If you find unusual smell or smoke from the transceiver, you should immediately turn OFF the
radio and contact with the Technical Service for their reparation.
●Please follow the local traffic regulations before using this transceiver.
●Don´t use accessories not originals or not recommended by manufacturer of the transceiver.
●Use DC 13.8 V ±15 % power supply. Do not use 24 VDC battery or power supply to operate the
radio. Check the battery polarity and voltage before installing the transceiver on the vehicle.
●Always use the supplied DC power cable for the transceiver installation.
●Don´t introduce any metal objects by connectors or holes of the transceiver.
●Don´t remove the fuse holder on the DC line. Error or wrong connection may cause fire.
●For your safety, use the mounting bracket and screws supplied to install the transceiver in a
vehicle.
● Consult with the manufacturer or salesperson of the car before installing the transceiver because
the transceiver transmission can interfere in to operation of the control and navigations systems if
these devices not have the adequate protection when the transceiver is in transmission mode.
4.- MAINTENANCE:
● This radio has been well tested and tuned by manufacturer. The reparations or internal adjust
without authorization from manufacturer will invalidate the warranty.
●Contact with your Technical Service if the transceiver no operates correctly.
●Use a soft cloth slightly moistened with a neutral detergent for cleaning the transceiver, do not
use concentrated chemicals, alcohol or solvents.

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5.- INSTALLATION:
5.1.- MOBILE INSTALLATION:
For your safety and that of the passengers of the vehicle, install the transceiver in a safe place of the
vehicle. We recommend that you install the transceiver under the dashboard, in order to prevent the
transceiver from hitting the legs or knees of passengers in the event of sudden braking of the
vehicle. Install the transceiver in a place with good ventilation and avoiding direct sunlight.
1. Install the mounting bracket to the car with using the self-taping screws and flat washers (2 pcs
screws and 2 pcs washers).
● You can install the mounting bracket upside or downside on the dashboard of the vehicle.
● When installing the mounting bracket, make sure that the screw side edge with slots on the
bracket are backwards.
2. Place the transceiver on the mounting bracket by fixing it at the proper angle using the hexagonal
screws and tighten them firmly.
● Make sure that the all screws are properly tightened to prevent them from loosening by the
vehicle vibrations.
● The angles positions of the mounting bracket allow you to adjust the desired angle of the
transceiver.

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5.2.- CONNECTING THE DC POWER CABLE:
5.2.1.- Mobile installation:
Make sure to use 12 V car batteries. If the radio´s power is low, during transmitting the screen will
grow dark and the output power may be significantly decreased.
Do not connect the transceiver to the 24 V power supply.
Note:
- If the battery is not fully charged or when the engine is switched off but the battery is still
not fully charged, the battery may discharge and there will not be enough power to start the
car. In this case, avoid using the transceiver in these conditions.
1. Install the transceiver as close as possible to the battery by connecting the power cable directly to
the vehicle's battery.
● If installing a noise eliminator filter, install an insulator to prevent the metal filter case from
contacting the car body.
● We do not recommend that you use the cigarette lighter socket of the car to power the transceiver
since some lighters may have voltage drops.
● Use rubber bushings when the cables have to be routed through the car chassis.
● The power cable must be protected from the heat produced by the car engine.
2. Once the power cord is installed, protect it from moisture including the fuse holder.
3. Disconnect the negative terminal of the car battery during the installation of the transceiver to
avoid short circuits.
4. Check the correct connection of the DC power cable, red to (+) terminal and black to (-) terminal
of the battery.
● Don´t remove the DC power cable fuses under any circumstances.
5. Once the transceiver is installed, connect the negative terminal of the battery again.
6. Connect the DC power cable to the transceiver.
● Press firmly on the DC power cord connector until you hear a “click” sound.

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5.2.2.- Fixed station installation:
For use as a fixed station, an external 13.8 VDC power supply is required. We recommend a power
supply that provides a current of at least 12 A.
Note:
- Do not connect the external power supply to the 230 VAC socket until all the transceiver
connections are complete.
1. Make sure the transceiver and the power supply are OFF mode.
2. Connect the transceiver DC power cable to the external power supply connectors (Red wire:
positive, black wire: negative).
● Use the supplied DC power cable to connect the transceiver to the external power supply. Never
connect the transceiver to a 230 VAC wall outlet.
● Don´t use a power cable with a smaller section than the one supplied.
3. Connect the DC power cable to the transceiver.
● Press firmly on the DC power cable connector until you hear a “click”sound.
5.2.3.- Replacing the fuse:
If the fuse blows, check the cause and solve the problem. Once the problem is solved, replace the
fuse by other of the same characteristics as the one supplied with the transceiver. If the new fuse
blows again, disconnect the DC power supply and contact with the Authorized Technical Service.
Fuse position
Fuse rated current
Transceiver (in DC connector)
10 A
DC power cable
10 A
Note:
- Use only the specified type and the rated value of the fuse; otherwise the transceiver could
be damaged.

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5.3.- ANTENNA INSTALLATION:
Before operate the transceiver, it is necessary to connect and adjust a suitable antenna. The success
of the installation depends mainly on the type of antenna and its correct installation. The transceiver
has its best performance when the proper antenna is installed correctly.
Use a 50 Ωlow loss coaxial cable for the connection of the antenna to the transceiver. If you use a
cable with impedance other than 50 Ω, the effectiveness of the antenna system will be reduced, and
will cause interferences to radio and television receivers and other nearby electronic devices, and
even the transceiver could be damaged.
Note:
- Transmit without an antenna or a 50 Ωartificial load can damage the transceiver. Connect
a suitable antenna before operate the transceiver.
● In a fixed installation, protections against electrical storms should be installed to reduce the risk
of fire, electric shock and damage to the transceiver.
5.4.- ACCESSORIES INSTALLATION:
5.4.1.- Speaker-microphone or headset + MIC:
1. Install an external 8 Ω impedance speaker or a suitable headset. The headset or the speaker-
microphone must incorporate a 2.5 mm and 3.5 mm mono plug jacks.

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The left side of the transceiver incorporates two jacks for speaker and microphone. Consult the
instructions of the accessories for installation.
5.4.2.- Microphone:
Connect the supplied microphone (with built-in speaker) to the RJ45 jack on the left side of the
front panel of the transceiver. Press the connector until you hear a “click”sound.
5.4.3.- Keypad operations:
Follow the operation of the keys described below to simplify the instructions and avoid unnecessary
duplication.
Instruction
Operation
Press the [XXX] key.
Means briefly press the key.
Press and hold the [XXX] key.
Means press and hold the key for 3 seconds or
more.
Press the [MENU] tuning knob + the [XXX]
key.
Means briefly press the [MENU] knob, then
press and release the proper key to enter into
settings menu.
[MENU] tuning knob.
Select the set options.
Press and hold the [POWER] key.
Press and hold the [POWER] key for 3 seconds
or more to turn ON/OFF the transceiver.

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6.- GETTING ACQUAINTED:
6.1.- FRONTAL PANEL:
(1) [ON/OFF] key:
● Press and hold for 3 seconds to turn [ON/OFF] the transceiver.
(2) [CALL/C.IN] key:
● Press this key to call up the call channel of the currently operation (CTRL) band.
● In VFO mode, press and hold this key for more than 3 seconds to store the frequency of the
currently operation band (CTRL) as the calling cannel.
● In VFO mode, press the [MENU] knob, then [CALL/C.IN] key to turn ON/OFF the reverse
function of currently operation band (CTRL).
>> The reverse function is valid only when the offset frequency is set and offset direction (+,-) is
on.
● In channel operation mode (CH), press the [MENU] knob, then the [CALL/C.IN] key, the current
channel is locked. Repeat the procedure again to unlock the current channel.
(3) [VFO/MR] key:
● Press the [VFO/MR] key to select the working operation mode for the currently operation band
(CTRL).
>> Every time when [VFO/MR] key is pressed, the display and working mode is switched in:
Channel → Channel + Frequency → Channel + Name → VFO.
●In VFO operation mode, press and hold this key for more than 3 seconds to store the frequency of
the currently operation band (CTRL) as the calling channel.
● In Channel / Channel + Frequency / Channel + Name, press and hold this key for more than 3
seconds to edit the channel name of the currently operation band (CTRL).
(4) [VOL/SCAN] key:
● Press this key to set the volume level of the currently operation band (CTRL).
●Press the [VOL/SCAN] key twice to mute the transceiver. Press this key again to turn off the
mute mode.

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●Press and hold the key for 3 seconds to turn on the scan mode of the currently operation band
(CTRL). Repeat above procedure to turn off the scan mode.
●In standby mode, press the [MENU] knob and this key to select the scan mode for the current
operation band (CTRL).
>> Search (SE).
>> Carrier (CO).
>> Time (TO).
(5) [SQL/MONI] key:
● Press this key to set the squelch (SQ) level of the currently operation band (CTRL).
● Press and hold the key for 3 seconds to turn off the SQ circuit of the currently operation band
(CTRL) and be in monitor mode.
●Press the [MENU] knob, then this key to disable or enable RX/TX of the currently operation band
(CTRL).
(6) [TONE/T.SEL] key:
●In VFO mode, press this key to turn ON/OFF the CTCSS/DCS code of the current operation band
(CTRL).
>> Options: QT → DQT → OFF.
●If CTCSS/DCS is on, press and hold the key for more than 3 seconds to set the CTCSS/DCS code
of the current operation band (CTRL). RX, TX and RX + TX CTCSS/DCS code can be set
separately.
●In VFO mode, press the [MENU] knob, then this key, the currently operable band (CTRL) is
switched between VHF and UHF.
(7) [B/E] key:
●In menu operation, press this key to return to the previous operation.
●In any submenu operation, press and hold this key for more than 3 seconds to exit the operation
mode and return to standby mode.
●In standby mode, press and hold this key for more than 3 seconds to turn ON/OFF the key lock
function.
(8) [LED] indicator:
● Lights green when receiving and lights red when transmitting.
●When the speaker microphone is operated, the led flashed red.
(9) [PTT/CRL] key:
●Press this key to transmit in the selected band where you want to transmit, the selected band is
indicated by the “PTT”icon.
●Press and hold this key for more than 3 seconds to select the currently operation band (CTRL) for
any operation, including SQ level, volume, signaling, menu, etc. The selected band is displayed
with the “CTRL” icon.
●Press the [MENU] knob, and then this key to turn ON/OFF the display and working mode of the
non-operation band. The display switches between single band and dual band.

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(10) MIC and PC jack (RJ45):
● It is used for connecting the microphone + speaker.
●Connect the PC cable to this Jack to program on the computer.
(11) Front panel:
● It is made of ABS material.
(12) LCD display:
● For displaying the working channel or frequency, instructions status, menus and other related
visual information with the transceiver.
(13) Rotate knob (ENC):
●Rotate this knob to select the operating frequency or memory channel, change the scanning
direction mode, select the audio level, etc. When in menu mode operation, it can be used for
selecting the settings options.
(14) [MENU] knob:
●Press this knob to enter menu mode.
●Press the knob, and then press any other key to set function options quickly.
● After set, press the [MENU] knob to confirm.
6.2.- LCD DISPLAY:
Icons descriptions displayed on the screen.
Icon
Description
Indicating the band can be transmitting.
Indicating the band can be operated and set.
CTCSS tones enabled.
DCS codes enabled.
Transmission frequency upper that receiving frequency (Positive
“Offset”).
Transmission frequency lower that the receiving frequency (Negative
“Offset”).
Reverse function activated.
Narrow band operation.
Wide band operation.
Displayed when the selected channel number is saved as memory
channel.
Displayed when the lock function for the memory channel is on.
Shows the channel memory number.
High transmission power.
Low transmission power.

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Signal strength at RX and power level at TX.
Squelch level.
Volume level.
VFO mode operation.
Keypad locked.
The current band is prohibit to TX & RX.
6.3.- REAR PANEL:
(1) ANT:
External antenna connected to this terminal. During the transmitting test, connect the load to replace
the antenna. Antenna system or the load should be with 50 Ωimpedances.
(2) Heat sink:
Allows cooling avoiding overheating that can cause damage to the internal components of the
transceiver.
(3) External power plug:
When you connect to the external power, you should carefully check the polarity of the power
supply (Red cable: + and black cable: -) and the power ratings (13.8 VDC ±15 %).
(4) Rack mounting screws:
Release the left and right screws to adjust a proper position angle, and re-fasten.
[SP/MIC] jack on side panel:
If necessary, connect a suitable headset or an external speaker for better sound. In these jacks can
only be connected monaural jacks with 2.5 mm and 3.5 mm diameter socket.

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(1) Accessories installation jack:
● Insert the headset with standard K type connector to this jacks.
Note:
- There is no speaker assembled in the transceiver body, the accessories used must be
equipped with speaker and microphone.
6.4.- SPEAKER-MICROPHONE:
(1) Speaker:
● An audio is issued when a signal is received.
(2) PTT:
●Press and hold and speak into the microphone to transmit. Release it to receive.
(3) Keypad:
●Press these keys to input the frequency or characters.

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(4) Microphone (MIC):
●Speak towards the microphone in a normal, clear tone of voice.
(5) Led indicator:
● When transmit, the led indicator lights red.
● If operating on speaker microphone keypad, the led indicator lights red, once release, the led turn
OFF.
(6) PF1 [A/B] key:
●The function is the sane that the [PTT/CLR] of the front panel of the transceiver. It is also
definable MIC PF1 key by programing software.
(7) PF2 [MENU] key:
● For selecting the menu mode. It is also definable MIC PF2 key by programing software.
(8) PF3 [VFO] key:
●For selecting the VFO mode. It is also definable MIC PF3 key by programing software.
(9) PF4 [DEL] key:
●Same function as [B/E] key on front panel of the transceiver. It is also definable MIC PF4 key by
programing software.
(10) [UP] key:
●Increase the parameter value.
(11) [DWN] key:
●Decrease the parameter value.
6.5.- DEFINABLE KEYS ON SPEAKER-MICROPHONE:
There are 4 PF definable functions keys: [MICPF1], [MICPF2], [MICPF3] and [MICPF4], whose
functions can be programmed by following procedure:
1. Press the [MENU] knob to enter the settings menu.
2. Rotate the [MENU] knob to select the “SET” option. Then press the [MENU] knob to confirm.
3. Rotate the [MENU] knob to select “Definable set” option. Then press the [MENU] knob to
confirm.
4. Turn the [MENU] knob to select the desired definable keys. Then press the [MENU] knob to
confirm.
5. Turn the [MENU] knob to assign the function for the selected definable key. Then press the
[MENU] knob to confirm.

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● The “Set Completed” is displayed on the screen.
6. The screen returns to the previous interface.
Available functions for definable keys are as follows:
● PTT/CLR.
● CAL/C-IN.
● VFO/MR.
● VOL/SCAN.
● SQL/MONI.
● TONE/T.SEL.
● BACK/DEL/LOCK.
● MENU.
6.6.- SELECT THE OPERATING BAND:
The band with “CTRL” icon displaying above is the operable band.
1. In standby mode, press and hold the [PTT/CTRL] for more 3 seconds, “CTRL” icon switches
between the upper and lower band. The band with “CTRL” icon displaying above is the currently
operation band.
The upper operable band:
The lower operable band:
6.7.- FREQUENCY INPUT METHOD:
If the desired operating frequency is far away from the current frequency, it is quicker to input the
desired frequency with speaker-microphone keypad.

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♦ Speaker-microphone input mode:
1. Press and hold the [PTT/CLR] key for more than 3 seconds to select the operation band (CTRL).
2. Press the [VFO/MR] key to switch to VFO mode.
3. Enter the desired frequency by using the numbers (0~9) on speaker-microphone keypad.
LCD display for direct frequency entry showing:
Note:
- If the [PTT] or [MENU] knob is pressed before all the digits are entered, the remaining
digits are set to “0”.
♦ Shift input mode:
1. Press and hold the [PTT/CLR] key for more than 3 seconds to select the operation band (CTRL).
2. Press the [VFO/MR] key to switch to VFO mode.
3. Press the [MENU] knob, then press the [VFO/MR] key.
●The “Hundred digit MHz” of the currently selected operational band (CTRL) we flashes.
4. Rotate the [MENU] knob to select the input digit, or input the number through the speaker-
microphone keypad.
●Press the [SQL/MONI] key to move the cursor to the left by one digit, or the [TONE/T.SEL] key
to the right by one digit. When the shift is selected, the previous digit is automatically confirmed.
5. After selecting, press the [MENU] knob to confirm.
●The setting will be confirmed automatically if 5 seconds without performed any operation or you
can press the [B/E] key to confirm the setting and exit.
7.- BASIC OPERATION:
7.1.- SWITCHING THE POWER ON/OFF:
1. Press and hold the [ON/OFF] key for more than 3 seconds to turn ON the transceiver.
● Power on message displays briefly on the screen.
2. Press and hold the [ON/OFF] key for more than 3 seconds to turn OFF the transceiver.
7.2.- VOLUME SETTING:
1. Press and hold the [PTT/CLR] key for more than 3 seconds to select the operation band (CTRL).
2. Press the [VOL/SCAN] key.
●The “VOL” icon displays on the right side of the band.
3. Turn the [MENU] knob to select the volume output level from 00 to 20.
● If set to “00”, the current band volume output is the minimum.
● If set to “20”, the current band volume output is the maximum.
4. After selecting, press the [MENU] knob to confirm or press the [B/E] key to cancel the setting.

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5. The screen returns to standby mode.
7.3.- MUTE MODE:
1. Press the [VOL/SCAN] key twice to tur ON the mute mode, and press it once again to turn OFF
the mute function.
● If the mute mode is ON, the speaker icon display on the right side of the band.
● If the mute mode is OFF, the speaker icon disappears from the screen.
7.4.- SQUELCH LEVEL SETTING:
The squelch is used to turn OFF the speaker volume when there is no received any signal. With the
squelch level is setting correctly, the audio can be heard only when a matching signal is received.
The higher the squelch level is, must be the stronger of receive signal level to listen the audio.
1. Press and hold the [PTT/CLR] key for more than 3 seconds to select the operation band (CTRL).
2. Press the [SQL/MONI] key.
● The “SQL” icon blinks on the right side of the operation band.
3. Turn the [MENU] knob to select the squelch level from 0 to 9.
● If set to “00”, the squelch of current band is OFF.
● If set to “9”, the squelch level of current band is maximum, the signal level must be stronger for
the communication can be heard.
Note:
- Set the squelch level depending on actual communication distance, the higher level is for
short distance communications.
4. After selecting, press the [MENU] knob to confirm or press the [B/E] key to cancel the setting.
5. The screen returns to standby mode.
7.5.- SELECT THE TRANSMISSION BAND:
The band with the “PTT” icon displaying above is the transmitting band.
1. In standby mode, press the [PTT/CLR] key.
● The “PTT” icon switches between the upper and lower band.
Upper band to transmit:

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Lower band to transmit:
7.6.- SINGLE BAND / DUAL BAND OPERATION:
You can turn OFF the desired band; the transceiver can operate between dual band and single band.
1. Press and hold the [PTT/CLR] key for more than 3 seconds to select the “CTRL” icon to the
desired band (CTRL).
2. Press the [MENU] knob, and then press the [PTT/CTRL] again, the non-operating band switched
between OFF or ON.
Dual band mode:
Single band mode:
Note:
- Only when the “CTRL” icon displays on the desired band, then can the un-desired band
be turned OFF by pressing the [MENU] + [PTT/CTRL] keys.