CTE HP125 VHF User manual

HP125 User manual
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HP125 VHF /HP425 UHF
Handheld PMR Transceiver
User’s Manual
Copyright 1998 by CTE International Italy; all rights reserved.

HP125 User manual
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In this book…
INTRODUCTION ...................................................................................................................................................... 4
MANUAL ACCURACY NOTES................................................................................................................................... 4
CONVENTIONS AND SYMBOLS IN THIS BOOK......................................................................................................... 4
SAFETY TRAINING INFORMATION................................................................................................................. 4
ADDITIONAL SAFETY INFORMATION ....................................................................................................................... 5
NOTE TO USERS OF HP425 TRANSCEIVER:................................................................................................6
WARNING......................................................................................................................................................6
PART NAMES AND THEIR FUNCTIONS.......................................................................................................... 7
TOP........................................................................................................................................................................ 7
FRONT................................................................................................................................................................... 7
SIDE (LEFT AND RIGHT)........................................................................................................................................... 8
DISPLAY................................................................................................................................................................. 8
SETUP.................................................................................................................................................................... 10
UNPACKING......................................................................................................................................................... 10
FITTING/REMOVING THE ANTENNA ....................................................................................................................... 11
INSTALLING/REMOVING THE BATTERY PACK ......................................................................................................... 11
INSTALLING/REMOVING THE BELT CLIP ................................................................................................................. 11
CHARGING THE BATTERY...................................................................................................................................... 12
BASIC OPERATIONS ......................................................................................................................................... 13
SWITCHING THE RADIO ON/OFF..........................................................................................................................13
RECEPTION .......................................................................................................................................................... 13
ADJUSTING VOLUME............................................................................................................................................. 14
CHANNEL SELECTION ........................................................................................................................................... 14
ADJUSTING SQUELCH ........................................................................................................................................... 14
TRANSMISSION .................................................................................................................................................... 15
ADJUSTING TRANSMIT POWER............................................................................................................................. 16
SCANNING CHANNELS.......................................................................................................................................... 16
RADIO LOCK ........................................................................................................................................................ 17
SELCALL AND CTCSS/DCS OPERATION..................................................................................................... 18
RECEPTION .......................................................................................................................................................... 18
TRANSMISSION .................................................................................................................................................... 18
Sending a Selcall............................................................................................................................................ 18
Stored call (Address book)...............................................................................................................................18
Who-has-called (Call Queue) ...........................................................................................................................19
MANUAL CALL..................................................................................................................................................... 20
One touch call................................................................................................................................................20
ADVANCED OPERATIONS............................................................................................................................... 21
SENDING STATUS MESSAGES................................................................................................................................. 21
SENDING FFSK FREE MESSAGES (SDM) .............................................................................................................. 21
CHECKING FFSK FREE MESSAGES (SDM)............................................................................................................ 22
SENDING DTMF PATTERNS.................................................................................................................................. 22
HANDSFREE TRANSMISSION (VOX) ..................................................................................................................... 22
CARE AND MAINTENANCE............................................................................................................................. 24
BATTERY PACKS .................................................................................................................................................. 24
Information on rechargeable batteries.......................................................................................................... 24
Proper charging of battery packs .................................................................................................................. 24
Memory effect................................................................................................................................................. 24
Erasing memory effect.................................................................................................................................... 25
Warnings for battery and charger use........................................................................................................... 25
RADIO MAINTENANCE.......................................................................................................................................... 26

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Cleaning battery packs................................................................................................................................... 26
Cleaning the radio.......................................................................................................................................... 26
Connectors...................................................................................................................................................... 26
OPTIONAL ACCESSORIES............................................................................................................................... 27
Microphone connector ................................................................................................................................... 27
WARNING to HP425 users............................................................................................................................ 27
QUICKREFERENCE.......................................................................................................................................... 28
OPERATION SUMMARY......................................................................................................................................... 28
LCD MEMO REFERENCE GUIDE............................................................................................................................. 28
MAIN SPECIFICATIONS.................................................................................................................................... 30
GENERAL ............................................................................................................................................................. 30
TRANSMITTER ...................................................................................................................................................... 30
RECEIVER............................................................................................................................................................. 30
AF & SIGNALING ................................................................................................................................................. 31
MECHANICAL SPECS ............................................................................................................................................ 31
INDEX.................................................................................................................................................................... 32

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Introduction
Congratulations. HP125/HP425 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 HP125/HP425 easy to use.
HP125/HP425 is a real system radio, supporting CTCSS/DCS, 5 tone signaling 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 that you can enter 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 you to switch on the
transmitter just by talking using an optional headset for full hands free operation.
Since programming can change standard operation, the functions of the radio and the buttons used to
activate them can be modified to meet your needs. Please contact your radio network administrator or
dealer for further details.
Transceiver’s specifications provided in HP125/HP425 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, for this reason specifications may vary without prior
notice.
Manualaccuracy 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 equipment software
version 1.0. If you own a later one please contact CTE International for the most recent updates.
Conventions and Symbols in this Book
!This symbol marks a ‘note’. Notes are hints or tips which offer additional information to help you.
"This 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 that may appear on the transceiver’s display are highlighted in Courier New
SAFETY TRAINING INFORMATION
Your Alan radio generates RF electromagnetic energy during transmit mode. This radio is
designed for and classified as “Occupational Use Only”, meaning it must be used only during the

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course of employment by individuals aware of the hazards, and the ways to minimize such
hazards. This radio is NOT intended for use by the “General Population” in an uncontrolled
environment.
This radio has been tested and complies with the FCC RF exposure limits for “Occupation Use Only.” In
addition, your radio complies with the following Standards and Guidelines with regard to RF energy and
electromagnetic energy levels and evaluation of such levels for exposure to humans:
•FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for
Human Exposure to Radio Frequency Electromagnetic Fields.
•American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to
Human Exposure to Radio Frequency electromagnetic Fields, 3kHz to 300GHz.
•American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the
Measurement of Potentially Hazardous Electromagnetic Fields- RF and Microwave.
To ensure that your exposure to RF electromagnetic energy is within the FCC allowable
limits for occupational use, always adhere to the following guidelines:
•DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may
also cause you to exceed FCC exposure limits. A proper antenna is the antenna supplied with this
radio by the manufacturer for use with this radio.
•DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmitting more than
50% of the time can cause FCC RF exposure compliance requirements to be exceeded.
•ALWAYS use authorized accessories (antennas, batteries, belt clips, speaker/mics, etc). Use of
unauthorized accessories can cause the RCC RF exposure requirements to be exceeded.
•ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body when transmitting and only
use the belt clip when attaching the radio to your belt, etc, to ensure FCC RF exposure requirements
are not exceeded. To provide the recipients of your transmission the best sound quality, hold the radio
5-10cm (2-4 inches) away from your mouth and slightly off to one side.
The information listed above provides the user with the information needed to make him or her
aware of RF exposure, and what to do to assure that this radio operates within the FCC RF
exposure limits of this radio.
Additionalsafety information
Your HP125/HP425 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.
•Do not 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 replace or remove the antenna.
•Do not transmit the radio with the antenna very close to or touching exposed parts of the body. 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 pressed when you don’t need to transmit.
•Do not operate the radio near unshielded electrical blasting caps or in an explosive atmosphere.
•Do not transmit without the antenna fitted on the radio. Although the HP125/HP425 is provided

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with a protection circuit, damage to the TX final stage could result.
•Respect the environment conditions. The radio is designed to be used in heavy environments,
however avoid exposure to extremely hot or cold temperatures (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 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.
•Use only authorized accessories. Non original accessories could seriously damage your handheld
transceiver.
•Do not spill liquid of any kind on this radio. If your transceiver gets wet immediately dry it with a
soft cloth.
•Switch the radio off before you clean it. Strictly follow the directions in the paragraph “Care and
maintenance”.
•Handle the battery properly. Strictly follow the directions in “Care and maintenance”.
•Be certain that your power source matches the rating listed for the supplied battery charger (AC
adapter). If you are not sure, check with your dealer.
•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.
NOTE TO USERS OF HP425 TRANSCEIVER:
WARNING
Your wireless hand-held portable transceiver contains a low power transmitter.
When the Push-to-Talk (PTT) button is pressed it sends out radio frequency
(RF) signals. The device is authorized to operate at a duty factor not to exceed
50%. In August 1996, the Federal Communications Commission (FCC) adopted
RF exposure guidelines with safety levels for hand-held wireless devices.
To maintaincompliance with the FCC's RF exposure guidelins, this transmitter
and it’s antenna must maintaina a separation distance of least 2 inches (5
centimeters) from your face. Speak in a normal voice, with the antenna pointed
up and away from the face at the required separation distance. The beltclip is
for storage purposes only. DO NOT TRANSMIT WHILE USING THE BELT
CLIP. To transmit, hold the device away from your body and ensure the antenna
is at least least 2 inches (5 centimeters) from your body when transmitting.

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7
13
8
9
10
11
12
14
6
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 facilities 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 speaker for monitoring of the tuned channel.
[5] Emergency button. Sends an emergency selective call. (if enabled)
Front [6] Speaker. The built in speaker located here emits the
reception sound.
[7] Power button. Press 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 text “Display”. Whenever any key is pressed the
display is automatically backlit for a few seconds.
[9] UP and Down buttons. For scrolling
forward and backward through function list and for
changing channels, volume and 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 a few
seconds.
[11] Clear button. If pressed for two seconds in
command mode, radio reverts back to standby mode.
In Selcall mode, deletes incorrectly entered digits (if
Selcall is enabled).
[12] Call button. To send a valid call when using
selective call features. (Selcall - if enabled)
[13]MENU button. Allows accessing the main menu.
[14]Microphone. The microphone located in this place
detects your voice.
1
4
5
3 2

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Side (left and right) [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 for removal of the battery pack.
[18]CALL 1 button. Sends the selective call NO.1.
(if enabled)
[19]PTT (Push To Talk) button. Switches the
transceiver from receive to transmit when
pressed.
[20]CALL 2 button. Sends the selective call NO. 2.
(if enabled)
Display
This section explains the meaning of the various indicators that may appear on the LCD of your
HP125/HP425 handheld transceiver:
Radio is transmitting (status LED will glow red at the same time)
Speaker is enabled (you will hear audio communications and/or noise)
DTMF is enabled
CTCSS/DCS tone detected
Selective call detected
Scrambler enabled
Battery Level indicator (the number of bars will vary with level of charge)
Keypad lock enabled
Receive mode (squelch is open)
Reception field strength level (the number of bars will vary with receive strength)
Transmit output power currently selected, respectively high (H) or Low (L)
15
17
18
16
20
19

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Mail notification
Customizable operation
Volume level (the number of bars will vary with volume level)

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Setup
Unpacking
The following items are in the package:
(a) Transceiver’s main body
(b) Flexible 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.