Alan HP 425-K User manual

IN THIS BOOK… 1
Introduction 2
Warning notes 2
Safety 3
Conventions and symbols in this book 4
PART NAMES AND THEIR FUNCTIONS 4
Top 4
Front 5
Side (left and right) 6
Display 7
SETUP 8
Unpacking 8
Fitting/removing the antenna 8
Installing/removing the battery pack 8
Installing/removing the belt clip 9
Charging the battery pack 9
BASIC OPERATIONS 10
Switching the radio on/off 11
Reception 11
Adjusting volume 12
Channel selection 12
Adjusting squelch 12
Transmission 13
Adjusting transmission power 14
Adjusting display contrast 14
Scanning channels 14
Radio lock 15
SELCALL AND CTCSS/DCS OPERATION 16
Reception 16
Transmission 16
Sending a Selcall 16
Stored call (Address book) 17
"Who-has-called" call (Call Queue) 18
Manual call 19
One touch call 19
ADVANCED OPERATIONS 20
Sending status messages 20
Sending FFSK free messages (SDM) 20
Checking FFSK free messages (SDM) 21
Sending dtmf patterns 21
Handsfree transmission (VOX) 21
CARE AND MAINTENANCE 22
Battery packs 22
Information on rechargeable batteries 22
Properly charge of battery packs 22
Memory effect 23
Erasing memory effect 23
Warnings for battery and chargers use 23
Radio maintenance 24
Cleaning battery packs 24
Cleaning the radio 24
Connectors 24
OPTIONAL ACCESSORIES 25
Microphone connector 25
QUICK REFERENCE 26
Operation resume 26
LCD memo reference guide 27
MAIN SPECIFICATIONS 29
General 29
Transmitter 29
Receiver 29
AF & signalling 30
Mechanical specs 30
INDEX 31
In this book... 1
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2Introduction
Introduction
Congratulations. HP 125-K/HP 425-K is an advanced PMR
(Professional Mobile Radio). Its rugged design allows it to be your
reliable partner even during hard working days. Its large LCD as well
as user friendly controls make the maximum ease of use.
HP 125-K/HP 425-K is a real system radio, supporting CTCSS/DCS,
5 tone signalling systems (encoder/decoder up to 28 + 28 tones),
FFSK, DTMF and trunking system property. Selcall mode supports
also many facilities, such as an alphanumeric address book, a call
queue function as well as a status message table. You can also use
FFSK to send/receive short text messages which you can dial via the
alphanumeric keypad. The way your radio operates may be upgraded
and may differ from what is described here.
To extend the flexibility the radio is provided with VOX function, which
allows to switch the transmission just by talking in full hands free
condition.
Since standard operation can be changed by programming, the
functions the radio includes and the buttons used to activate them
can be modified. For this reason some commands couldn’t be
available. Please contact your radio network administrator or dealer
for further details.
Transceiver’s specifications provided in HP 125-K/HP 425-K are
compliant with ETS 300 086 and ETS 300 113, moreover its top level
design and resistance are compliant with IEC529 level IP54 and MIL
STD 810 C,D,E.
CTE International is committed to continuous quality improve, for this
reason specifications may vary without prior notice.
Warning notes
Every effort has been made to ensure that the information in this
document is complete, accurate, and up-to-date. CTE International
assumes no responsibility for the results of errors beyond its control.
The manufacturer of this equipment also cannot guarantee that
changes in the equipment made by non authorized people will not
affect the applicability of the information in it.
This user’s guide is subject to change without notification. This booklet
is referred to 1.0 software version. If you own a later one please
contact CTE International for the most recent updates.
Safety
Your HP 125-K/HP 425-K handheld transceiver has been carefully
designed to give you years of safe, reliable performance. As with all
electrical equipment, however, there are a few basic precautions you
should take to avoid hurting yourself or damaging the radio:
• Read the instructions in this handbook carefully. Be sure to save
it for future reference.
• Read and follow all warning and instruction labels on the radio
itself.
•Don’t carry the transceiver by the antenna. This may damage
the antenna or antenna terminal. Grasp it by its base (not the tip!)
when you need to place or remove it.
•Don’t keep the radio with the antenna very close to, or touching
exposed parts of the body, while transmitting. The radio will perform
best if the microphone is 5-10 cm away from the mouth and the
radio is vertical.
• Be sure the PTT key is not depressed when you don’t need to
transmit.
• Do not operate the radio near unshielded electrical blasting caps
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Introduction 3
or in an explosive atmosphere.
•Don’t transmit without the antenna fitted on the radio. Though
it is provided with a protection, it may damage the TX output final
stage.
•Respect the environment conditions. The radio is designed to
be used in heavy environments, however avoid to expose it to
extremely hot or cold temperature (out of the range between –30
to +60°C). Don’t expose the transceiver to excessive vibrations
as well as dusty or rainy places.
•Never try to disassemble or service the radio by yourself (aside
from the routine maintenance described in this handbook). It will
immediately void the warranty and you may cause damage requiring
extensive repair work. Always contact your local dealer for
assistance.
•Grasp your radios firmly. Otherwise it may fall and be damaged.
•Use only genuine accessories. Non original ones could seriously
damage your handheld transceiver.
•Do not use your radio near water, or spill liquid of any kind
into it. If the transceivers get wet immediately dry it by a soft and
clean cloth.
•Switch the radio off before you clean it. Strictly follow the
directions reported in the paragraph “Care and maintenance”.
•Handle the battery properly. Strictly follow the directions reported
in “Care and maintenance”.
• Be certain that your power source matches the rating listed for
the supplied battery charger (AC adaptor). If you are not sure,
check with your dealer or with your local power company.
• To avoid damaging the power cable of the battery charger, do not
put anything on it or place it where it will be walked on.
This product complies with the requirements of the Council Directives
89/336/EEC and 73/23/EEC on the approximation of the laws of the
member states relating to electromagnetic compatibility and low
voltage.
Conventions and Symbols in this Book
2This symbol marks a ‘note’. Notes are hints or tips which offer
additional information to help you.
IThis symbol marks a ‘caution’. Cautions are special notices
which you should read and follow carefully to avoid possible
damage to your equipment and to avoid potential danger to
yourself or other people.
Key names will be highlighted in bold.
Important sentences and words are highlighted in Italic.
LCD messages which may appear on the transceiver’s display are
highlighted in Courier New
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4Part Names and their functions
Part Names and their functions
Please have a look to the following parts description in order to
familiarize with the transceiver’s main parts and controls. Numbers
in brackets refer to the illustration.
Top
[1] Antenna connector. Fit the antenna to this connector (MX
thread type).
[2] Programming connector (under the protection cap - for
authorized dealers/service stations only). Allows to program the
radio (channels data) via a suitable programmer. It must be
protected with the supplied rubber cap when not in use.
[3] Status LED. Glows in different colors to show the current radio’s
status.
[4] (monitor) button. Enables the loudspeaker for audio monitoring
of the tuned channel.
[5] emergency button. Sends the emergency selective call (if
enabled).
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Part Names and their functions 5
[6] Speaker. The reception sound is emitted by the built in speaker
located in this point.
[7] (power) button. Keep pressed this key to turn the transceiver
on and off.
[8] LCD display. Shows the radio’s parameters (channel number
etc.). Icon and symbols are further explained in the paragraph
“Display”. Whenever any key is pressed the display is
automatically backlit for few seconds.
[9] (up) and (down) buttons. For scrolling forward and
backward through function list and for changing function values.
[10] Keypad. For entering digits of selective call (if enabled) and
letters for the related operations (e.g. SDM messages or Address
Book). Whenever any key is pressed the display is automatically
backlit for few seconds.
[11] (clear) button. If held pressed in command menu escapes
it and reverts the radio in standby condition. In Selcall mode
deletes wrong entered digits (if enabled).
[12] (call) button. To send a valid call when using selective call
features (Selcall - if enabled).
[13] MENU button. Allows to access the main menu.
[14] Microphone. Your voice is detected by the microphone located
in this place.
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Front

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6Part Names and their functions
[15] Microphone connector. For remote speaker/microphone,
headsets for VOX use and other accessories. It must be protected
with the supplied rubber cap when not in use. For the related
pin connections please see to “Microphone connection”.
[16] Battery pack. This NiMH battery pack supplies energy to your
radio.
[17] Release button (located on the battery’s body). Allows to remove
the battery pack.
[18] CALL 1 button. Sends the selective call NO.1 (if enabled).
[19] PTT (Push To Talk) button. When pressed switches the transceiver
from reception to transmission.
[20] CALL 2 button. Sends the selective call NO. 2 (if enabled).
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Side (left and right)

Display
This section explains the meaning of the various indications which
may appear on the LCD of your HP 125-K/HP 425-K handheld
transceiver:
Radio is transmitting (status LED will glow red at the same
time)
Loudspeaker is enabled (you will hear audio communications
and/or noise)
DTMF is enabled
CTCSS/DCS tone detected
Selective call detected
Scrambler enabled
Battery Level (as many bars you will see as higher is the
residual duty)
Keypad lock enabled
Receive mode (squelch is open)
Reception field strength level
transmission output power currently selected, respectively
high (H) or Low (L)
Mail notification
Customizable operation
Volume level (as many bars you will see as higher is the
Part Names and their functions 7
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8Setup
Setup
Unpacking
The following items are in the package:
(a) Transceiver’s main body
(b) Rubber ducky antenna
(c) Battery pack NiMH 1,200 mA/h
(d) Standard battery charger composed by two parts:
• Cradle
• AC adapter
(e) Belt clip
(f) User’s guide (this book!)
If something is missing please promptly advise your supplier.
Fitting/removing the antenna
To fit the antenna:
1) Locate the antenna terminal (thread MX connector) on transceiver’s
top.
2) Hold the transceiver with one hand and the base (the thicker part)
of the antenna with the other one.
3) Attach the included rubber ducky antenna to the antenna terminal
by turning it clockwise until it is firmly locked. Don’t overtight it.
To remove the antenna do the same described procedure. At step 3
turn the antenna base counterclockwise.
ILeave the antenna fitted on the radio. You can’t communicate
without it. Moreover, transmitting without the antenna may
damage the TX output final stage. For the same reason use
only the supplied antenna.
2The supplied antenna is broadband type and covers the whole
spectrum, so it doesn’t need any alignment procedure.
Installing/removing the battery pack
To install the battery pack (please see the figure):
1) Hold the transceiver’s body with one hand and the battery pack
with the other. Put the battery pack onto the metallic back of the
transceiver as shown at approximately 2 cm from its back edge.
back edge
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transceiver
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Setup 9
2) Gently slide the battery pack toward the transceiver’s back edge
keeping it slightly pressed onto the metallic back surface.
3) At approx. 1.5 cm you will feel the battery’s guides fitting with the
transceiver’s ones (the battery pack will be closer to the transceiver).
Keep on sliding the battery pack toward the back edge.
4) At the end you will hear a click: the battery pack will snap into
place and should be firmly locked.
To remove the battery pack:
1) Press the battery release button located in the back of the battery
pack.
2) Keep the button pressed and gently pull the battery pack away
from the transceiver back edge (the opposite operation of the
previous step 2): it will stop at 1.5 cm approximately and will be
free.
3) Remove the battery pack by separating it from the transceiver’s
body.
Installing/removing the belt clip
The supplied belt allows you to hang the transceiver up to your belt
or jacket when you are not using the radio and you are just in stand-
by condition (ready to receive calls).
To fit the belt clip onto the transceiver’s body:
1) Remove the battery pack as explained in “Installing/removing the
battery pack”.
2) Just gently slide the clip into the appropriate guides located in
the transceiver’s back until it firmly locks.
To remove the belt clip:
1) Remove the battery pack as explained in “Installing/removing the
battery pack”.
2) Reverse the over stated step 2.
IDon’t forget to remove the battery pack before fitting/removing
the belt clip, otherwise the operation may result harder to
perform. Moreover the battery case might be accidentally
scratched.
Charging the battery pack
To charge the supplied battery pack you have to setup the supplied
standard charger and connect the radio as follows (please see the
picture):
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To the AC outlet

10 Basic Operations
Basic Operations
This section describes how the standard operations work. Standard
operation can be changed by programming, moreover the functions
the radio includes can be modified via an IBM compatible PC. For
this reason the way your radio operates may be upgraded and may
slightly differ from what is described here.
2IMPORTANT: Due to the full programmability of the radio, certain
menu commands could be unavailable. E.g. if your radio hasn’t
been programmed for selective call operations, the related menu
commands won’t be recalled. In case of doubts please contact
your dealer/radio network administrator for further details.
1) Connect the jack coming from the AC adaptor to the cradle’s
socket located in its right side.
2) Connect the AC plug of the AC adaptor’s power cable into an
earthed AC power outlet: the built-in green LED of the cradle will
glow.
3) Ensure that the radio is switched off, otherwise switch it off by
holding the (power) key pressed (release it after the radio is
switched off).
4) Insert the radio into the cradle with the keypad toward you (the
three metallic contacts of the battery pack must touch with the
three contacts inside the cradle): the built-in red LED of the cradle
will glow.
5) Wait 8-9 hours and remove the radio after that time.
2Don’t remove the radio before 8 hours, otherwise the battery’s
duty could be temporarily reduced.
IDon’t forget to remove the radio after 9 hours.
IThe battery charger is for indoor use only.
IFor the next charges, best duty and battery life please fully
see the chapter “Battery Packs”.
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Basic Operations 11
Switching the radio ON/OFF
To switch the radio on:
1) Hold the (power) button until the radio is switched on: the LCD
will start an autotest showing in sequence:
• A welcome message (if previously programmed – it is usually
your company name or your personal station identification). At
the same time all the LCD icons will be shown for one second
as LCD test.
• The firmware release number (FW Rev.).
2) After the autotest has been carried out the LCD will steadily show
the following data:
•The battery level with . As many bars you will see, as greater
is the residual battery duty.
•The channel name/number on the first line (a specific twelve
alphanumeric characters identification name), it could be the
last recalled channel or a previously programmed specific one.
•The current volume level with an LCD bar indication. As more
bars you will see as greater is the volume setting.
• The currently selected TX output power: L(low) or H(high) in the
lower right corner of the LCD.
To switch the radio off just hold the key pressed until the transceiver
will switch off.
Reception
Your radio could be previously programmed to work, channel by
channel, in “Open traffic”, “CTCSS/DCS” or “Selcall” mode. Please
have a look to each description and ask your radio network manager
or dealer which mode your radio channels work.
•OPEN TRAFFIC: in this case you will hear any communication
which will be transmitted on the selected channel. When any signal
is received your squelch will unmute and you will see in the LCD
the icon (speaker enabled), (squelch is open), (reception
field strength level – the number of bars will vary according to
the received RX strength). Moreover you will see the status LED
glowing green and you will hear the message.
•CTCSS/DCS (Continuous Tone Code Squelch System - Digital
Coded Squelch): they are systems which use particular TX signalling
(a continuous sub audio tone for CTCSS or a digital code for DCS)
as an access “key” to work a repeater (encoder) or to unlock the
party’s signalling sensitive squelch. This last condition allows to
share more radio networks in the same frequency. In this case
you will receive only messages coming from parties sending a
proper TX signalling. Please see the chapter “Selcall Operation”
for further details.
•SELCALL (Selective call): it’s a system which uses a signalling
sequence (e.g. audio tones for “5 tones” and DTMF selcall or a
frequency shift signalling for FFSK) to call a particular station or
group(s). In this case you will receive only calls provided with your
identification selective call code (a number) or calls sent to the
group you own. For further details please see the chapter “Selcall
operation”.
2CTCSS/DCS and Selcall can be combined together.
ICTCSS/DCS and Selcall allow to share more than one radio
CHANNEL 1
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network in the same frequency, however they are just useful
to avoid disturbing stations not owning of the same network
with messages not related to them. In any case, if more than
one station is transmitting at the same time, this will cause
an interference. Don’t transmit if the status LED is glowing
or the icon is on the LCD. Wait till nobody is transmitting
on the channel.
Adjusting volume
When no keys are pressed for 5 seconds, the radio is in its normal
condition (stand by) and the (up) and (down) keys are used
to adjust the RX volume: just repeatedly press the key to increase
or the key to reduce it. The bar meter provided in the bottom
part of the LCD will continuously show the volume level; as many
bars you will see, as higher is the volume level currently selected.
2You will later see that up and down keys are also used to adjust
other settings recalled by pressing once or more times the MENU
key. This key is used to access the command menu.
Channel selection
If your radio has been programmed with more than one channel you
can easily change it. As previously explained each channel is identified
by alphanumeric names which are previously defined by your network
manager or supplier. They should have designated appropriate names
for them in order to make easier for you quickly recognizing which
channel you are currently working in.
To select a channel:
12 Basic Operations
1) Press the MENU key in order to access the command menu and
see on the display the message Channel. Normally you have to
press the key just once, but if necessary repeatedly press it again.
2) Press the key to increase the channel number or the
key to decrease it.
3) Press the MENU key repeatedly to go through the next menu item
or press and hold to go to the previous menu item, or press the
(clear) key to escape the menu and restore the normal LCD
condition.
2After 5 seconds, if you are not pressing any key, the menu is
automatically escaped, so the display will automatically revert to
its normal condition.
Adjusting squelch
Squelch device provide to silence your radio when you are working
in open traffic mode (please see “Reception”) and no signals are
received. It’s very important to adjust it in order to set the minimum
level which assures you a stable silence in stand-by condition. If the
squelch level is too high, you might lose weak signals. A good squelch
adjustment assures also a proper scanning operation.
To adjust the squelch:
1) Ensure that no communications are carried out in the tuned channel
(the icon shouldn’t be present in the top right part of the LCD).
2) Repeatedly press the MENU key in order to access the command
menu and see on the display the message Squelch (normally
you have to press the key twice). You will also see a number which
is the squelch adjustment level.
Channel
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Transmission
When you need to transmit please get used to follow all these steps:
1) Ensure that the channel is not busy (otherwise you will create an
interference, please wait till that condition).
2) Press the PTT key: the status LED will glow red.
3) Start talking at a normal voice level at approximately 10 cm from
the microphone (keep the PTT key pressed).
4) When your message is over, release the PTT
2Don’t shout! It won’t increase the distance range, but rather will
make you heard distorted.
2Don’t release the PTT before your message is over or start talking
before pressing it, otherwise your message will be “chopped”.
2A PMR handheld radio doesn’t normally allow to talk and receive
simultaneously, for this reason make your messages with a
reasonable time. When you are talking the other parties can’t do
that, so don’t occupy too much the channel. Use the common
sense.
2The radio might be programmed with a timeout timer which
automatically put your radio in reception if you talk too much (after
a preset time). In this case release the PTT and wait for few seconds:
the radio TX features will be automatically restored. Ask the network
responsible or your dealer for further details.
Basic Operations 13
3) Press the key repeatedly to decrease the squelch level: after
the level 1you will see OFF (squelch disabled) and you will also
see the icon .
4) Press the key repeatedly in order to select the minimum
squelch level in which the icon steadily disappears (normally 2
will do).
5) Repeatedly press the MENU key repeatedly to go through the
next menu item or press and hold to go to the previous menu
item, or press the (clear) key to escape the menu and restore
the normal LCD condition.
2After 5 seconds, if you are not pressing any key, the menu is
automatically escaped, so the display will automatically revert to
its normal condition.
2In case of either CTCSS or Selcall system programmed, squelch
could not affect the loudspeaker status, because the radio is closed
awaiting the right tones. In case of advanced signalling systems,
please, pay attention to the programming of the monitor key
function (further described). Depending on this, you can or not
press the button to mute/unmute the loudspeaker and to adjust
the squelch level. The set squelch level will be stored and recovered
at every switch on operation.
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Squelch

Adjusting transmission Power
Your HP 125-K/HP 425-K can transmit with two power levels according
to the distance of your party station(s). Low and High levels can be
defined by default during programming, however we do recommend,
when possible, to use the Low power: it will increase the battery duty
and will reduce the risk to make interference with stations not owning
to your radio network which may sharing the same channel with you.
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message Power (normally you
have to press the key three times). You will also see a cursor on
either Lor H.
2) Change the power as follows:
• If the low power is currently selected, press the key to set
the high power; the cursor will move to H.
• If the high power is currently selected, press the key to set
the low power; the cursor will move to L.
3) Repeatedly press the MENU key repeatedly to go through the
next menu item or press and hold to go to the previous menu
item, or press the (clear) key to escape the menu and restore
the normal LCD condition.
2After 5 seconds, if you are not pressing any key, the menu is
automatically escaped, so the display will automatically revert to
its normal condition.
14 Basic Operations
H Power L
Adjusting display contrast
You can adjust the LCD contrast in order to obtain the best readability.
It will vary depending on your use as well as the environment
illumination.
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message Contrast (normally
four times).
2) Press the key repeatedly to increase the contrast or the
key to decrease it.
3) Repeatedly press the MENU key to go through the next menu
item or press and hold to go to the previous menu item, or press
the (clear) key to escape the menu and restore the normal LCD
condition.
2After 5 seconds, if you are not pressing any key, the menu is
automatically escaped, so the display will automatically revert to
its normal condition.
Scanning channels
If you have more than one channel programmed, your HP 125-K/HP
425-K can scan them: in other words it can cycle through them and
stop when a signal is detected.
The advanced scan functions of the radio allow to optionally preset
two groups (g1 and g2) in order to independently activate the scanning
Contrast
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and transmit in the priority channel or in the first available vacant
channel, depending on programming.
2Channel scan can be programmed by your radio network
administrator or dealer in a variety of different parameters depending
to your needs, for example he can assign one or more priority
channels, adjust the scan speed (switching time), the resume time
(the time the radio waits before keeping on scanning), set the busy
or vacant channel stop etc. Please contact your administrator/dealer
for further details.
Radio lock
Your HP125/425 has been provided with a security function which
protects it against the misuse by unauthorized people or accidental
activation of commands. You can lock the radio in two ways:
•Full lock: every command is locked.
•Partial lock: only the keypad is locked.
Every time you unlock the radio you will have to enter a 4 digits
security code called PIN (personal identification number).
To lock the radio:
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message F Lock P.
2)Press the key to activate the Full lock or the key to
activate the Partial one.
in them.
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message g2 Scan g1.
2) Now you can activate the scan as follows:
•If you have only one group available press the key.
•If you have two groups programmed, press to scan the g2
group or to scan g1.
•If you simultaneously want to scan the 2 groups, press and hold
g1 or g2.
In both cases you will see Scanning and the channel names cycling
continuously. The scanning starts from the lowest address number
toward the highest. Obviously, if one or more priority channels
have been programmed, it will start from the first priority address
number.
3) To stop channel scan Press the MENU key, or the PTT.
2If you are working in Open traffic (please see the paragraph
“Reception”) ensure that the squelch is properly set, otherwise
the scanning may not properly work. See eventually the paragraph
“Adjusting squelch” for more details.
2If CTCSS/DCS or Selcall have been previously programmed, the
scanning will stop only if the received signal has the appropriate
signalling.
2If you press the PTT during channel scan (on the LCD) it will stop
Basic Operations 15
F Lock P
g2 Scan g1
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16 Selcall and CTCSS/DCS Operation Reception
Selcall and CTCSS/DCS Operation
Reception
During CTCSS/DCS and Selcall operation the radio may be set-up
so that the appropriate CTCSS/DCS and Selcall decoder enables the
speaker. Speaker will remain muted until the correct CTCSS tone,
the correct DCS code and/or the appropriate selective call is received.
In case of unmuted speaker, the message will be heard, the status
LED will glow green and the receive icon will be displayed. Moreover
the strength level of the received signal is displayed (as many
are the bars as stronger is the received signal). The CTCSS/DCS
reception is indicated by the icon; the Selcall reception is indicated
by the icon .
Transmission
Sending a Selcall
You can send a selective call in many different ways which make easy
and quick sending your calls depending to your need: Stored call,
Who-has called call, Manual call and One touch call.
2One or more of these modes can’t be available depending on the
previous programming set up by your radio network administrator
or dealer. Please contact them for further details.
To unlock the radio:
1) If the radio is in Partial lock then press the MENU key: the display
will read PIN .... else go directly to point 2.
2) Enter the PIN (four digits): the radio will be unlocked.
2If you entered the correct pin then the radio will return to normal
operation mode; if you entered the wrong pin radio remains locked.
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Selcall and CTCSS/DCS Operation Reception 17
Stored call (Address book)
This mode allows you to originate a call by using a convenient
alphanumeric address book which has been programmed by your
radio network administrator or dealer with the most used ID associated
to an alphanumeric label, for example:
Headoffice 15
John 01
Mary 07
Mike 08
Robert 05
..... XX
..... XX
2Starting from now, as “address” we mean an ID associated with
an alphanumeric label.
To call an address using the address book:
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message AddrBook Ok.
2) Press the key to access the address book.
3) Select the required address to call (name with associated ID); you
have two choices:
•Scrolling trough the various addressed by means of the and
keys.
•Recalling the initial letter of the addresses. Press the key which
states the initial letter (e.g. to call Mary press 5, to call John
press 4 etc.) the unit will display the first name of the address
book starting with the selected character (or the next if no names
beginning with the selected character is in the list). If the initial
letter is the 2nd of the 3rd one printed on a key, press respectively
that key two or three times (e.g. to recall the Headoffice press
3 twice). If you have more than one address beginning with the
same initial letter use the key to scroll down names till you
will reach the proper address.
4) Hold pressed the (call) button to call the selected address.
2If you made a mistake in recalling an address you can abort the
call operation at step 4 by pressing the (clear) button. Note:
the selected address became the default TX address.
2Address book is also useful in reception: in fact when you receive
a selcall ID which is stored in it, your radio will automatically look
for that ID in the address book. If it is stored in it, you will see the
alphanumeric label on the display as well. E.g. if you receive 15
as caller ID, and it is stored in your address book as “Headoffice”,
you will see “Headoffice” in your LCD instead of “15”.
AddrBook Ok
English

18 Selcall and CTCSS/DCS Operation Reception
Who-has-called call (Call Queue)
This is a convenient facility which is useful to check who has called
you and eventually call back him/her. First of all please note that your
HP 125-K/HP 425-K has a sort of buffer reception memory which
holds the last 10 received calls:
1 st (most recent received call) John
2 nd Robert
3 rd Mary
4 th Headoffice
5 th Lyndsay
6 th Mike
7 th Branch
8th William
9th Ann
10th (oldest received call) Peter
This buffer memory is displayed similarly to the address book and is
a FIFO (First In First Out) type: it means that the 10th stored address
(the oldest received call) is the first which will be deleted after the
11th received call in order to make room for it.
In the over stated example the 1st received call came from Peter, so
it will be deleted from the call queue as soon as a new call will be
received. All the other addresses (Names with associated IDs) will be
shifted one position down in order to make room for the new address
at the 1st position as follows:
Before a received call
1st John 01
2nd Robert 05
3rd Mary 07
4th Headoffice 15
5th Lyndsay 21
6th Mike 08
7th Branch 33
8th William 55
9th Ann 16
10th Peter 19
After the call received from
Fred (ID 23)
1 st Fred 23
2 nd John 01
3 rd Robert 05
4 th Mary 07
5 th Headoffice 15
6 th Lyndsay 21
7 th Mike 08
8th Branch 33
9th William 55
10th Ann 16
To call an address using the call queue:
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message CallQueue Ok.
CallQueue OK
2) Press the key to access the call queue. This access is only
allowed if the CallQueue is not empty.
3) Scroll through the address by using the and keys and
select the address you want to call.
4) Press the (call) button to call the selected address: it will be
called and automatically deleted from the call queue.
English

Selcall and CTCSS/DCS Operation Reception 19
After the call from Mike
(ID 08)
1 st Mike 08
2 nd John 01
3 rd Robert 05
4 th Mary 07
5 th Headoffice 15
6 th Lyndsay 21
7 th Branch 33
8th William 55
9th Ann 16
10th Peter 19
2If you need to delete an address stored in the call queue without
calling it perform the over stated procedure. At the step 4 press
the (clear) button: the selected address will be deleted.
2The call queue is provided with a “space save” function: if more
than one call has been received from the same caller, this avoids
that his/her address is stored twice. The oldest position will
automatically be deleted and the new one will be kept. For example
this is what will happen when a new call is received from a user
who has already been stored in the call queue (Mike with ID 08):
Before the call from Mike
(ID 08)
1 st John 01
2 nd Robert 05
3 rd Mary 07
4 th Headoffice 15
5 th Lyndsay 21
6 th Mike 08
7 th Branch 33
8th William 55
9th Ann 16
10th Peter 19
Manual call
If the radio network administrator or your dealer has enabled in your
unit the manual definition of variable address digits:
1) Just dial the variable address digits using the keypad before
sending the call. Any digit can be corrected by overwriting.
2) After you see the right address on the display make the call by
pressing the (call) button.
2To repeat the last call, just press the button twice. The group
tone (‘A’) can be obtained by pressing and holding the 0key.
One touch call
Just press either the CALL1 or CALL2 button. If they have been
programmed the preset addresses will be automatically called.
English

20 Advanced Operations
Advanced Operations
In this section we’ll describe some advanced operation which you
can do with your handheld transceiver:
Sending status messages
Status digits allow you to transmit some previously programmed
conditions in which you could momentarily be (e.g. BUSY, FREE,
EMERGENCY etc.). Your transceiver can automatically associate the
said digits with the related alphanumeric message in order to make
easier sending and recognizing them exactly as you do with the
address book. To send a status message:
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message StatusDig Ok.
2) Press the key to enter to access the status digit command.
3) Press either the and keys to scroll through the various
previously programmed messages and select the one you wish
to transmit.
4) Press the (call) button to select the status digit or hold pressed
the (clear) button to revert the transceiver in stand by condition.
5) Refer to “Sending a Selcall” to address the call. Select the required
address to call, press the (call) button, the status digit/digits
will be automatically sent to the selected address.
Sending FFSK free messages (SDM)
1) Repeatedly press the MENU key in order to access the command
menu and see on the display the message Send SDM Ok.
2) Press the key to edit the SDM.
3) Edit the text of SDM by using the keypad as follows.
• Press the key which states each required letter/number (e.g. use
5 to select M, N, Oor 5) if the letter is the 2nd, the 3rd or the 4th
one printed on a key, press respectively that key two, three or
four times (e.g. to recall the Hpress the key 3 twice). After one
second the cursor will automatically move to the next position.
• To select a dot press the key 9three times.
•To select !, ?or a space, repeatedly press the key 0until the
required character appears on the LCD.
•If you have made a mistake in editing the message, you can
delete characters by briefly pressing the (clear) button.
4) Hold pressed the (call) button to send the SDM or hold pressed
the (clear) button to revert the transceiver in stand by condition.
Status Dig OK
Send SDM OK
English