Midland Radio ALHP425 Handheld UHF Transceiver User Manual Revised User Instructrions

Midland Radio Corporation Handheld UHF Transceiver Revised User Instructrions

Contents

Revised User Instructrions

HP125 User manualPage. 1HP125 VHF /HP425 UHFHandheld PMR TransceiverUser’s ManualCopyright  1998 by CTE International Italy; all rights reserved.
HP125 User manualPage. 2In this book…INTRODUCTION ...................................................................................................................................................... 4MANUAL ACCURACY NOTES................................................................................................................................... 4CONVENTIONS AND SYMBOLS IN THIS BOOK......................................................................................................... 4SAFETY TRAINING INFORMATION................................................................................................................. 4ADDITIONAL SAFETY INFORMATION ....................................................................................................................... 5NOTE TO USERS OF HP425 TRANSCEIVER:................................................................................................6WARNING......................................................................................................................................................6PART NAMES AND THEIR FUNCTIONS.......................................................................................................... 7TOP........................................................................................................................................................................ 7FRONT ................................................................................................................................................................... 7SIDE (LEFT AND RIGHT)........................................................................................................................................... 8DISPLAY................................................................................................................................................................. 8SETUP.................................................................................................................................................................... 10UNPACKING......................................................................................................................................................... 10FITTING/REMOVING THE ANTENNA ....................................................................................................................... 11INSTALLING/REMOVING THE BATTERY PACK ......................................................................................................... 11INSTALLING/REMOVING THE BELT CLIP ................................................................................................................. 11CHARGING THE BATTERY...................................................................................................................................... 12BASIC OPERATIONS ......................................................................................................................................... 13SWITCHING THE RADIO ON/OFF ..........................................................................................................................13RECEPTION .......................................................................................................................................................... 13ADJUSTING VOLUME............................................................................................................................................. 14CHANNEL SELECTION ........................................................................................................................................... 14ADJUSTING SQUELCH ........................................................................................................................................... 14TRANSMISSION .................................................................................................................................................... 15ADJUSTING TRANSMIT POWER............................................................................................................................. 16SCANNING CHANNELS.......................................................................................................................................... 16RADIO LOCK ........................................................................................................................................................ 17SELCALL AND CTCSS/DCS OPERATION..................................................................................................... 18RECEPTION .......................................................................................................................................................... 18TRANSMISSION .................................................................................................................................................... 18Sending a Selcall............................................................................................................................................ 18Stored call (Address book)...............................................................................................................................18Who-has-called (Call Queue) ...........................................................................................................................19MANUAL CALL ..................................................................................................................................................... 20One touch call ................................................................................................................................................20ADVANCED OPERATIONS............................................................................................................................... 21SENDING STATUS MESSAGES................................................................................................................................. 21SENDING FFSK FREE MESSAGES (SDM) .............................................................................................................. 21CHECKING FFSK FREE MESSAGES (SDM)............................................................................................................ 22SENDING DTMF PATTERNS.................................................................................................................................. 22HANDSFREE TRANSMISSION (VOX) ..................................................................................................................... 22CARE AND MAINTENANCE............................................................................................................................. 24BATTERY PACKS .................................................................................................................................................. 24Information on rechargeable batteries.......................................................................................................... 24Proper charging of battery packs .................................................................................................................. 24Memory effect................................................................................................................................................. 24Erasing memory effect.................................................................................................................................... 25Warnings for battery and charger use........................................................................................................... 25RADIO MAINTENANCE.......................................................................................................................................... 26
HP125 User manualPage. 3Cleaning battery packs................................................................................................................................... 26Cleaning the radio.......................................................................................................................................... 26Connectors...................................................................................................................................................... 26OPTIONAL ACCESSORIES............................................................................................................................... 27Microphone connector ................................................................................................................................... 27WARNING to HP425 users............................................................................................................................ 27QUICK REFERENCE .......................................................................................................................................... 28OPERATION SUMMARY ......................................................................................................................................... 28LCD MEMO REFERENCE GUIDE............................................................................................................................. 28MAIN SPECIFICATIONS.................................................................................................................................... 30GENERAL ............................................................................................................................................................. 30TRANSMITTER ...................................................................................................................................................... 30RECEIVER............................................................................................................................................................. 30AF & SIGNALING ................................................................................................................................................. 31MECHANICAL SPECS ............................................................................................................................................ 31INDEX.................................................................................................................................................................... 32
HP125 User manualPage. 4IntroductionCongratulations. HP125/HP425 is an advanced PMR (Professional Mobile Radio). Its rugged design allowsit to be your reliable partner even during hard working days. Its large LCD as well as user friendly controlsmake the HP125/HP425 easy to use.HP125/HP425 is a real system radio, supporting CTCSS/DCS, 5 tone signaling systems (encoder/decoderup to 28 + 28 tones), FFSK, DTMF and trunking system property. Selcall mode supports also manyfacilities, 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 alphanumerickeypad. 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 thetransmitter 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 toactivate them can be modified to meet your needs. Please contact your radio network administrator ordealer 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 priornotice.Manual accuracy notesEvery 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. Themanufacturer of this equipment also cannot guarantee that changes in the equipment made by nonauthorized 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 softwareversion 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 andfollow carefully to avoid possible damage to your equipment and to avoid potential dangerto 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 NewSAFETY TRAINING INFORMATIONYour Alan radio generates RF electromagnetic energy during transmit mode. This radio isdesigned for and classified as “Occupational Use Only”, meaning it must be used only during the
HP125 User manualPage. 5course of employment by individuals aware of the hazards, and the ways to minimize suchhazards. This radio is NOT intended for use by the “General Population” in an uncontrolledenvironment.This radio has been tested and complies with the FCC RF exposure limits for “Occupation Use Only.” Inaddition, your radio complies with the following Standards and Guidelines with regard to RF energy andelectromagnetic 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 forHuman Exposure to Radio Frequency Electromagnetic Fields.• American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect toHuman Exposure to Radio Frequency electromagnetic Fields, 3kHz to 300GHz.• American National Standards Institute (C95.3-1992), IEEE Recommended Practice for theMeasurement of Potentially Hazardous Electromagnetic Fields- RF and Microwave.To ensure that your exposure to RF electromagnetic energy is within the FCC allowablelimits 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 mayalso cause you to exceed FCC exposure limits. A proper antenna is the antenna supplied with thisradio 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 than50% 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 ofunauthorized 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 onlyuse the belt clip when attaching the radio to your belt, etc, to ensure FCC RF exposure requirementsare not exceeded. To provide the recipients of your transmission the best sound quality, hold the radio5-10cm (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 heraware of RF exposure, and what to do to assure that this radio operates within the FCC RFexposure limits of this radio.Additional safety informationYour HP125/HP425 handheld transceiver has been carefully designed to give you years of safe, reliableperformance. As with all electrical equipment, however, there are a few basic precautions you should taketo 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. Theradio 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
HP125 User manualPage. 6with 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 maintenancedescribed in this handbook). It will immediately void the warranty and you may cause damage requiringextensive repair work. Always contact your local dealer for assistance.• Use only authorized accessories. Non original accessories could seriously damage your handheldtransceiver.• Do not spill liquid of any kind on this radio. If your transceiver gets wet immediately dry it with asoft cloth.• Switch the radio off before you clean it. Strictly follow the directions in the paragraph “Care andmaintenance”.• 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 (ACadapter). 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 itwhere it will be walked on.This product complies with the requirements of the Council Directives 89/336/EEC and 73/23/EEC on theapproximation of the laws of the member states relating to electromagnetic compatibility and low voltage.NOTE TO USERS OF HP425 TRANSCEIVER:WARNINGYour 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 exceed50%. In August 1996, the Federal Communications Commission (FCC) adoptedRF exposure guidelines with safety levels for hand-held wireless devices.To maintain compliance with the FCC's RF exposure guidelins, this transmitterand it’s antenna must maintaina a separation distance of least 2 inches (5centimeters) from your face. Speak in a normal voice, with the antenna pointedup and away from the face at the required separation distance. The beltclip isfor storage purposes only. DO NOT TRANSMIT WHILE USING THE BELTCLIP. To transmit, hold the device away from your body and ensure the antennais at least least 2 inches (5 centimeters) from your body when transmitting.
HP125 User manualPage. 771389101112146Part Names and their functionsPlease have a look to the following parts description in order to familiarize with the transceiver’s main partsand 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 - forauthorized dealers/service facilities only). Allows toprogram the radio (channels data) via a suitableprogrammer. It must be protected with the suppliedrubber 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 thereception sound.[7] Power button. Press this key to turn thetransceiver on and off.[8] LCD display. Shows the radio’s parameters (channelnumber etc.). Icon and symbols are further explainedin the text “Display”. Whenever any key is pressed thedisplay is automatically backlit for a few seconds.[9] UP and Down buttons. For scrollingforward and backward through function list and forchanging channels, volume and function values.[10] Keypad. For entering digits of selective call (ifenabled) and letters for the related operations (e.g.SDM messages or Address Book). Whenever any keyis pressed the display is automatically backlit for a fewseconds.[11] Clear button. If pressed for two seconds incommand mode, radio reverts back to standby mode.In Selcall mode, deletes incorrectly entered digits (ifSelcall is enabled).[12] Call button. To send a valid call when usingselective call features. (Selcall - if enabled)[13] MENU button. Allows accessing the main menu.[14] Microphone. The microphone located in this placedetects your voice.1453 2
HP125 User manualPage. 8Side (left and right)[15] Microphone connector. For remotespeaker/microphone, headsets for VOX use andother accessories. It must be protected with thesupplied rubber cap when not in use. For therelated pin connections please see to“Microphone connection”.[16] Battery pack. This NiMH battery pack suppliesenergy 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 thetransceiver from receive to transmit whenpressed.[20] CALL 2 button. Sends the selective call NO. 2.(if enabled)DisplayThis section explains the meaning of the various indicators that may appear on the LCD of yourHP125/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 enabledCTCSS/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)151718162019
HP125 User manualPage. 9 Mail notification Customizable operation Volume level (the number of bars will vary with volume level)
HP125 User manualPage. 10SetupUnpackingThe 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.
HP125 User manualPage. 11Fitting/removing the antennaTo 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 flexible antenna to the antenna terminal by turning the antenna clockwise until it isfirmly locked. Don’t overtighten the antenna!To remove the antenna reverse the previous step." Leave the antenna attached on the radio. You can not communicate without it. Moreover,transmitting without the antenna may damage the TX final stage. For the same reason use only thesupplied antenna.! The supplied antenna is broadband type and covers the whole spectrum. The antenna does notneed any alignment.Installing/removing the battery packTo install the battery pack (please see the figure):1) Hold the transceiver’s body with one hand and the batterypack with the other. Put the battery pack onto the metallicback of the transceiver as shown at approximately 2 cmfrom the bottom edge of the thick part of the transceiver.2) Gently slide the battery pack toward the transceiver’sbottom edge keeping it slightly pressed onto the metallicback surface.3) At approx. 1.5 cm you will feel the battery’s guides fittingwith the transceiver’s guides (the battery pack will becloser to the transceiver). Keep sliding the battery packtoward the back edge.4) At the end you will hear two clicks: the battery pack willsnap 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 bottom 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 clipThe supplied belt clip allows you to hang the transceiver on your belt or jacket when you are not using theradio.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 firmly1234
HP125 User manualPage. 12locks.To remove the belt clip:1) Remove the battery pack as explained in “Installing/removing the battery pack”.2) Reverse step 2." Do not forget to remove the battery pack before fitting/removing the belt clip, otherwise theoperation will be harder to perform.Charging the BatteryTo charge the supplied battery pack you have to setup the supplied standard charger and connect theradio as follows (please see the picture):1) Connect the jack coming from the AC adapter to the cradle’ssocket located in its right side.2) Connect the AC plug of the AC adapter’s power cable into anAC power outlet: the built-in green LED of the cradle will glow.3) Ensure that the radio is switched off. Insert the radio into thecradle with the keypad toward you (the three metallic contacts ofthe battery pack must touch with the three contacts inside thecradle): the built-in red LED of the cradle will glow.4) Wait 8-9 hours and remove the radio after that time.! Do not remove the radio before 8 hours, otherwise thebattery’s duty could be temporarily reduced." Do not forget to remove the radio after 9 hours." The battery charger is for indoor use only." For maximum battery life please see the chapter “Care and Maintenance”.
HP125 User manualPage. 13Basic OperationsThis section describes how the standard operations work. Programming can change standard operation.Functions of the radio can be modified via an IBM compatible PC. For this reason the way your radiooperates may be upgraded and may slightly differ from what is described here.! IMPORTANT: Due to the full programmability of the radio, certain menu commands could beunavailable. E.g. if your radio has not been programmed for selective call operations, the relatedmenu commands won’t be recalled. In case of doubts please contact your dealer/radio networkadministrator for further details.Switching the radio ON/OFFTo switch the radio on:1) Hold the (power) button until the radio is switched on: the LCD will start an autotest showing insequence:• A welcome message (if previously programmed – it is usually your company name or your personalstation 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 . (number of bars indicate level of charge)• The channel name/number on the first line (a specific twelve alphanumeric charactersidentification name), it could be the last recalled channel or a previously programmed specificchannel.• The current volume level with an LCD bar indication.• The currently selected TX output power: L (low) or H (high) in the lower right corner of the LCD.To switch the radio off Press and hold the key until the transceiver switches off.ReceptionYour radio could be previously programmed to work, channel by channel, in “Open traffic”, “CTCSS/DCS” or“Selcall” mode. Please have a look at each description and ask your radio network manager or dealer whichmode your radio channels work.• OPEN TRAFFIC: in this case you will hear any communication which will be transmitted on theselected channel. When any signal is received your squelch will unmute and you will see in the LCDthe icon (speaker enabled), (squelch is open), (reception field strength level – thenumber of bars will vary according to the received signal strength). Moreover you will see the statusCHANNEL 1H
HP125 User manualPage. 14LED glowing green and you will hear the message.• CTCSS/DCS (Continuous Tone Code Squelch System - Digital Coded Squelch): are systems whichuse particular TX signaling (a continuous sub-audible tone for CTCSS or a digital code for DCS) asan access “key” to work a repeater (encoder) or to unlock the party’s signaling sensitive squelch.This last condition allows sharing more radio networks in the same frequency. In this case you willreceive only messages coming from parties sending a proper TX signaling. Please see the chapter“Selcall Operation” for further details.• SELCALL (Selective call): is a system which uses a signaling sequence (e.g. audio tones for “5tones” and DTMF Selcall or a frequency shift signaling for FFSK) to call a particular station orgroup(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 desire. For further details please see the chapter “Selcalloperation”.! CTCSS/DCS and Selcall can be combined together." CTCSS/DCS and Selcall allow to share more than one radio network in the same frequency,however they are just useful to avoid disturbing stations not owning of the same networkwith messages not related to them. In any case, if more than one station is transmitting at thesame time, this will cause interference. Do not transmit if the status LED is glowing or the icon is on the LCD. Wait until channel is clear before transmitting.Adjusting volumeWhen no keys are pressed for 5 seconds, the radio is in its normal stand by condition and the (up)and (down) keys are used to adjust the RX volume. To adjust the volume repeatedly press the(up) key to increase or the (down) key to reduce the volume. The bar meter is provided in the bottom of the LCD to continuously show the volumelevel. The number of bars will vary depending on volume level.Channel selectionIf your radio has been programmed with more than one channel, you can easily change it. As previouslyexplained, each channel can be identified by alphanumeric names which are previously defined by yournetwork manager or supplier.To select a channel:1) Press the MENU key in order to access the command menu and see on the display the messageChannel. Press the key to increase the channel (number) or the key to decrease it2) . Press the (clear) key for two seconds to escape the command mode! After 5 seconds, if you have not pressed any keys, the radio automatically reverts back to standbymode.Adjusting squelchSquelch is provided to silence your radio when you are working in open traffic mode (please seeChannel H
HP125 User manualPage. 15“Reception”) and no signals are received. It’s very important to adjust the squelch to a level in order toassure you a stable silence in stand-by condition. If the squelch level is too high, you might lose weaksignals. A good squelch adjustment assures also proper scanning operation.To adjust the squelch:1) Ensure that no communications are carried out in the tuned channel (the icon should not be presentin the top right part of the LCD).2) Press the MENU key in order to access the command menu and see on the display the message“Squelch”. You will also see a number, which is the squelch adjustment level.3) Press the key repeatedly to decrease the squelch level: after the level 1 you will see OFF squelchis disabled and you will also see the icon .4) Press the key repeatedly in order to select the minimum squelch level in which the . icondisappears ( level 2 normally).5) Press the (clear) key for two seconds to escape the command mode.! After 5 seconds, if you have not pressed any keys, the command menu is automatically escaped! In case of either CTCSS or Selcall system programmed, squelch does not affect the speaker status,because the radio is closed awaiting the correct tones. In case of advanced signaling systems,please, pay attention to the programming of the monitor key function (further described). Dependingon this, you may or may not be able to press the button to mute/unmute the loudspeaker and toadjust the squelch level. The set squelch level will be stored and recovered at every switch onoperation.TransmissionWhen you need to transmit please get used to following all these steps:1) Ensure that the channel is not busy. (Otherwise you will create interference. Please wait for thechannel to clear).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 keypressed).4) When your message is over, release the PTT.! Do not shout! It will not increase the distance you are able to communicate. Shouting into themicrophone will only make your transmission sound distorted!! Don’t release the PTT before your message is over or start talking before pressing it, otherwiseyour message will be “chopped”.! A PMR handheld radio doesn’t normally allow you to talk and receive simultaneously, for thisreason make your messages short.! The radio might be programmed with a timeout timer that will automatically switch your radio toreceive mode if you talk too much (after a preset time). In this case release the PTT and wait for afew seconds: the radio TX features will be automatically reset. Ask the network administrator oryour dealer for further details.Squelch H3
HP125 User manualPage. 16Adjusting Transmit PowerYour HP125/HP425 can transmit with two power levels according to the distance of your party’s station(s).Low and High levels can be defined by default during programming. We recommend, when possible, to usethe Low power: it will increase the battery life and will reduce the risk of interference with stations not inyour radio network which may be sharing the same channel with you.1) Press the MENU key to access the command menu and see on the display Power. You will also see acursor on either L or H.2) Change the power as follows:• If the LOW power is currently selected, press the key to set to high power; the cursor willmove to H.• If the HIGH power is currently selected, press the key to set to low power; the cursor willmove to L.3) Press the (clear) key for about 2 seconds to escape the command menu and restore the radio tonormal standby operation.! After 5 seconds, if you have not pressed any keys, the command menu is automatically escaped. Adjusting display contrastYou can adjust the LCD contrast in order to obtain the best readability. It will vary depending on your use aswell as the environment illumination.1) Repeatedly press the MENU key in order to access the command menu and see on the display themessage Contrast.2) Press the key repeatedly to increase the contrast or the key to decrease it.3) Press the (clear) for 2 seconds key to escape the command menu mode.! After 5 seconds, if you have not pressed any keys the command menu is automatically escaped.Scanning channelsIf you have more than one channel programmed, your HP125/HP425 can scan them. The advanced scanfunctions of the radio allows you to optionally preset two groups (g1 and g2).1) Repeatedly press the MENU key in order to access the command menu and see on the display g2Scan g1.2) Activate the scan as follows:H Power LContrast Hg2Scang1H
HP125 User manualPage. 17• 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 on the display. Thescanning starts from the lowest address number toward the highest. If one or more priority channelshave been programmed, it will start from the first priority address number.3) To stop channel scan Press the MENU key, or the PTT.! If you are working in Open traffic (please see the paragraph “Reception”) ensure that the squelch isproperly set, otherwise the scanning may not work properly. See the paragraph “Adjusting squelch”for more details.! If CTCSS/DCS or Selcall have been previously programmed, the scanning will stop only if thereceived signal has the appropriate signaling.! If you press the PTT during channel scan, scanning will stop and transmit in the priority channel orin the first available vacant channel, depending on programming.! Channel scan can be programmed by your radio network administrator or dealer in a variety ofdifferent parameters depending on your needs. For example he can assign one or more prioritychannels, adjust the scan speed (switching time), the resume time (the time the radio waits beforescanning resumes after receiving a signal), set busy or vacant channel stop etc. Please contactyour administrator/dealer for further details.Radio lockYour HP125/HP425 has been provided with a security function, which protects it against unauthorized oraccidental 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 (personalidentification number).To lock the radio:1) Repeatedly press the MENU key to access the command menu and see on the display the message FLock P.2) Press the key to activate the Full lock or the key to activate the Partial lock.To unlock the radio:1) If the radio is in Partial lock press the MENU key: the display will read PIN ....2) Enter the PIN (four digits), the radio will be unlocked.! If you entered the correct pin then the radio will return to normal operation mode. If you entered thewrong pin radio remains locked.FLock PH
HP125 User manualPage. 18Selcall and CTCSS/DCS OperationReceptionDuring CTCSS/DCS and Selcall operation the radio may be set-up so that the appropriate CTCSS/DCS andSelcall decoder enables the speaker. Speaker will remain muted until the correct CTCSS tone, the correctDCS code and/or the appropriate selective call is received. In case of unmuted speaker, the message willbe heard, the status LED will glow green and the receive icon will be displayed. Moreover the strengthlevel of the received signal is displayed (the number of bars will vary according to the receivedsignal strength). The CTCSS/DCS reception is indicated by the icon; the Selcall reception is indicatedby the icon.TransmissionSending a SelcallYou can send a selective call in many different ways, which makes it easy and quick to send your callsdepending on your needs: Stored call (who-has called), Manual call and One touch call.Stored call (Address book)This mode allows you to originate a call by using a convenient alphanumeric address book which has beenprogrammed by your radio network administrator or dealer with the most used ID associated to analphanumeric label, for example:Headoffice 15John 01Mary 07Mike 08Robert 05..... XX..... XX! Starting 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 to access the command menu and see on the display the messageAddrBook 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 addresses by means of the and keys.• Recalling the initial letter of the addresses. Press the key that states the initial letter (e.g. to callAddrBook OkH
HP125 User manualPage. 19Mary press 5, to call John press 4 etc.). The unit will display the first name of the address bookstarting with the selected character (or the next address if no names beginning with the selectedcharacter is in the list). If the initial letter is the 2nd of the 3rd one printed on a key, press respectivelythat key two or three times (e.g. to recall the Headoffice press 3 twice). If you have more than oneaddress beginning with the same initial letter use the key to scroll down names till you willreach the proper address.4) Press the (call) button for 2 seconds to call the selected address.! If you made a mistake in recalling an address you can abort the call operation at step 4 by pressingthe (clear) button. Note: the selected address became the default TX address.! Address book is also useful in reception. When you receive a Selcall ID that is stored in theaddress book, your radio will automatically look for that ID in the address book. If it is stored, youwill see the alphanumeric label on the display as well. For example, if you receive 15 as caller ID,and it is stored in your address book as “Headoffice”, you will see “Headoffice” in your LCD insteadof “15”.Who-has-called (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 HP125/HP425 has a memory which holds the last 10 received calls:1st (most recent received call) John2nd Robert3rd Mary4th Headoffice5th Lyndsay6th Mike7th Branch8 th William9 th Ann10th (oldest received call) PeterThis buffer memory is displayed similarly to the address book and is a FIFO (First In First Out) type. Thismeans 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 example the 1st received call came from Peter, so it will be deleted from the call queue as soon as anew call is received. All the other addresses (Names with associated IDs) will be shifted one position downin order to make room for the new address at the 1st position.
HP125 User manualPage. 20Before a received call After the call received from Fred (ID 23)1st John 01 1st Fred 232nd Robert 05 2nd John 013rd Mary 07 3rd Robert 054th Headoffice 15 4th Mary 075th Lyndsay 21 5th Headoffice 156th Mike 08 6th Lyndsay 217th Branch 33 7th Mike 088 th William 55 8 th Branch 339 th Ann 16 9 th William 5510th Peter 19 10th Ann 16To call an address using the call queue:1) Repeatedly press the MENU key to access the command menu and see on the display the messageCallQueue 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 fromthe call queue.! If you need to delete an address stored in the call queue without calling it perform the previousprocedure. At the step 4 press the (clear) button: the selected address will be deleted.! The call queue is provided with a “space save” function: if more than one call has been receivedfrom the same caller “space save” will overwrite it.Manual callIf the radio network administrator or your dealer has enabled in your unit the manual definition of variableaddress digits:1) Just dial the variable address digits using the keypad before sending the call. Any digit can be correctedby overwriting.2) When you see the correct address on the display, make the call by pressing the (call) button.! To repeat the last call, just press the button twice. (The group tone (‘A’) can be obtained bypressing and holding the 0 key).One touch callTo activate the “One Touch call, press either the CALL1 or CALL2 button. If they have been programmedthe preset addresses will be automatically called.CallQueue OkH
HP125 User manualPage. 21Advanced OperationsIn this section we’ll describe some advanced operation which you can do with your handheld transceiver:Sending status messagesStatus digits allow you to transmit some previously programmed conditions in which you could momentarilybe: BUSY, FREE, EMERGENCY etc. Your transceiver can automatically associate the said digits with therelated alphanumeric message in order to make it easier to send and recognizing them exactly as you dowith 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 themessage StatusDig Ok.2) Press the key to access the status digit command.3) Press either the and keys to scroll through the various programmed messages and selectthe one you wish to transmit.4) Press the (call) button to select the status digit.5) Press the (clear) button for 2 seconds to escape command menu mode.6) 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 to access the command menu and see on the display the messageSend 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 that states each required letter/number (e.g. use 5 to select M, N, O or 5). If theletter is the 2nd, the 3rd or the 4th one printed on a key, press respectively that key two, three or fourtimes (e.g. to recall the H press the key 3 twice). After one second the cursor will automaticallymove to the next position.• To select a dot press the key 9 three times.• To select !, ? or a space, repeatedly press the key 0 until the required character appears on theLCD.• If you have made a mistake in editing the message, you can delete characters by briefly pressingSend SDM OkHStatusDigOkH
HP125 User manualPage. 22the (clear) button.4) Press and hold the (call) button for 2 seconds to send the SDM.5) Press and hold the (clear) button for 2 seconds to escape the command menu mode.Checking FFSK free messages (SDM)When you receive an SDM (FFSK message) you will see it on the LCD. Any key will delete it; You can seethe last 5 received messages at any time. SDM messages are queued in a FIFO call queue similar to theone dedicated for the selective calls (please make reference to “Who-has-called call” in the chapter “Selcalland CTCSS/DCS Operation”). To recall it:1) Repeatedly press the MENU key to access the command menu and see on the display the messageMSGQueue Ok.2) Press the key to access the message queue. This access is only allowed if the MSGQueue isnot empty.3) Scroll through the messages by using the and keys and select the one you want to see.4) Press the (clear) button for 2 seconds to exit the command menu mode.Sending DTMF patternsDTMF (Dual Tone Multifunction Frequency) is a standard signaling system used to dial telephone numbersover a normal PSTN landline. In radio communications it can be also used to do the same if your radiochannel is connected to a landline via a suitable device (phone patch). DTMF is used to send/receive radiocommands or provide signaling similarly to selective calls. For further details please contact your networkadministrator.To store or dial a DTMF pattern:1) Repeatedly press the MENU key to access the command menu and see on the display the messageDTMF Send Ok.2) Press the key to edit the DTMF pattern to send.3) Edit the DTMF pattern to send by using the keyboard. Pressing or buttons, you can digit * or #.Any digit can be corrected by overwriting.4) Press and hold (call) button for 2 seconds to send the DTMF pattern.5) Press and hold the (clear) button for 2 seconds to escape the command mode.Handsfree transmission (VOX)VOX (Voice Operated Transmit) is an automatic system that allows you to automatically switch thetransmission in hands free mode just by speaking in the built-in microphone of a headset (not provided withMSGQueue OkHDTMF Send OkH
HP125 User manualPage. 23the unit). Please ensure that the handset is suitable for your transceiver as reported in the paragraph“Microphone connection”.To adjust the VOX sensitivity:1) Connect the optional headset with built-in microphone to the microphone connector located on thetransceiver’s side.2) Repeatedly press the MENU key to access the command menu and see on the display the messageVOX. You will see OFF (disabled) or digit which indicates the microphone sensitivity value.(OFF-9)3) Ensure that the headset’s built-in microphone is located close to the side of your mouth.4) Press either the and keys to adjust the VOX sensitivity in order to ensure a stabletransmission when speaking with a normal voice level.5) Press and hold the (clear) button for 2 seconds to escape the command mode." We recommend setting the VOX to lowest sensitivity possible; too high a value could causeaccidental transmissions, especially in hi-noise environments.Vox HOFF
HP125 User manualPage. 24Care and MaintenanceBattery PacksInformation on rechargeable batteries• When the battery pack is new it does not provide 100% of its efficiency. To reach the full batterylife you must “run-in” the battery with at least 3-4 deep charging/discharging cycles, after that it willreach its maximum capacity. Please see “Proper charging of battery packs” for further details.• Should you properly use the battery pack, you will obtain at least 400 charge/discharge cycles (300with the optional rapid charger).• Nickel-Metal-Hydride rechargeable battery packs lose their charge with time if left unused (self-discharge), this is normal. A NiMH (Nickel-Metal-Hydride) battery can reduce 10 to 20% of itsstored energy in few days.Proper charging of battery packs1) 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).2) Insert the radio into the cradle as explained in the paragraph “Charging the battery pack”3) Wait the necessary time to provide a full charge. If the pack isn’t completely discharged you will needless than 8 hours. Evaluate the time by using the battery level indicator and common sense." Do not overcharge the battery: always remember to remove the radio after the necessarytime." The battery charger is for indoor use only.! When possible, charge the battery when it is fully discharged. The battery’s duty could betemporarily reduced. Please see the paragraph “Memory effect”.! Don’t remove the radio before the necessary time, otherwise the battery’s duty could be temporarilyreduced. Please see the paragraph “Memory effect”.Memory effectThe supplied NiMH (Nickel Metal Hydride) battery pack is made with a more advanced technology thannormal NiCd (Nickel Cadmium) battery. For this reason it is virtually free of what is called “memory effect”,which affects NiCd batteries. Memory effect is a temporary capacity reduction that reduces the batteryduty. Memory effect may occur just if you regularly charge the battery when you haven’t discharged it atleast at 50-70%. Memory effect can be easily avoided by following these simple rules:• When possible charge battery packs only when they are completely discharged, i.e. when thebattery icon has no bars inside.• Don’t remove the battery from the charger before the necessary time to provide a full charge.• Provide at least two deep charge/discharge cycles per month.• The best way to avoid memory effect is to use two battery packs and alternate their use with the
HP125 User manualPage. 25radio. This will allow you to keep on your transceiver’s operation by replacing the battery pack justwhen it’s fully discharged and use the spare (charged) one. At the end of your working day you willcharge the discharged pack for 8 hours.Erasing memory effectMemory effect can be easily erased just by applying 3-4 deeper charge/discharge cycles:1) Use the battery fitted in the radio and wait until the radio switches off. Do not stop when the last batterybar disappears from the icon; wait until the LCD completely disappears.2) Wait at least one hour and then try to turn the radio on by pressing the button: you will note thatsome energy has restored in the battery, because the radio can be switched on.3) Leave the radio in RX until the radio switches off again.(usually after a few minutes)4) Repeat steps 2 and 3 three times.5) Fully charge the battery for 9 hours and check the battery duty. If some memory effect still exists goback to step 1.! If the battery duty doesn’t improve after three cycles, your battery pack is faulty or has reached theend of life (please see “Information on rechargeable batteries”).Warnings for battery and charger usePlease use these cautions to avoid damaging battery packs or the transceiver:" Before using the battery charger carefully read any related warning or caution." Don’t short battery terminals: this may cause fire, burns or explosions." Never dispose of batteries into fire they may explode causing, burns or explosions. Strictlyfollow any disposal regulation of your country." Use only authorized batteries and chargers. The use of non-authorized accessories may causeburns, fire or explosions, resulting in serious damage to the radio/battery or serious injury toyou." Battery chargers are for indoor use only." 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 placeit where it will be walked on. Insert the plug in socket provided with grounded connection." . Do not use the charger if it has fallen down or it appears damaged; immediately contact anauthorized service station." Never try to disassemble or service the charger by yourself. Always contact your local dealerfor assistance." To reduce the risk of electric shocks disconnect the plug before any cleaning or maintenance.Grasp the plug (not the cable) to remove the plug from the socket." Do not expose batteries directly to temperatures below -20°C (-4°F) or greater than 35°C(95°F) during their use and do not charge them outside the range of +5 to +55°C (41-131°F).
HP125 User manualPage. 26Radio maintenanceCleaning battery packsWipe the battery contacts with a clean and lint free cloth to remove dirt, grease or any other material thatmay prevent a good electrical contact. If contacts are very dirty you can also wipe them using a soft pencileraser (not hard erasers for ink!). If you feel that battery contacts are not working properly, please contactyour authorized dealer." Do not use liquid, alcohol or aerosol cleaners.Cleaning the radio• Wipe the radio with a clean and lint free cloth to remove dust. If it is very dirty, you can use a damp(slightly moistened with water) cloth." Do not use liquid, alcohol or aerosol cleaners.! If you normally use your radio in dusty or hard environments, we do recommend using the optionalcarrying case. Please see “Optional accessories”.ConnectorsWhen the connectors are not being used, they should be fitted with the supplied cover caps." Only authorized accessories should be connected to the related connectors.
HP125 User manualPage. 27Optional accessoriesThese optional accessories can be used to improve the transceiver’s performances:• Spare battery pack.• Rapid charger.... Recharges the battery pack in 1 hour and provides trickle charge when the batterypack reached a full charge.• Carrying case.Microphone connectorThe microphone connector is designed for the connection of two basic accessories (not supplied asstandard):• An external speaker/microphone, which allows using the radio secured firmly to your belt by meansof the supplied belt clip.• A headset with built-in microphone, which additionally will add the “VOX” facility. For further detailsplease see “Hands free transmission (VOX)”.Any kind of accessory for the above stated purposes can be connected to the microphone connector,provided that they meet the following requirements:• Jack connectors for Speaker (SPK) and Microphone (MIC) must be respectively standard type 3.5 mmand 2.5 mm. and connected as follows:• The suggested speaker input impedance is 8 Ohms• The microphone should be condenser low-impedance type.• Any accessory should be of high quality suitable for professional use." Please don’t connect any accessory that you are not sure meets the above statedrequirements. You could cause serious damages to your radio. In case of doubt pleasecontact your authorized dealer.WARNING to HP425 usersYour wireless hand-held portable transceiver contains a low power transmitter. When the Push-to-Talk(PTT) button is pressed sends out radio frequency (RF) signals. The device is authorized to operate at aduty cycle factor not to exceed 50%. In august 1996, the Federal Communications Commissions (FCC)adopted RF exposure guidelines with safety levels for hand-held wireless devices. The FCC has issued thefollowing warning,SPKSpk GNDMICMicGND
HP125 User manualPage. 28To maintain compliance with the FCC’s RF exposure guidelines, this transmitter and its antenna mustmaintain a separation distance of at least 2 inches (5 centimeters) from your face. Speak in a normal voice,with the antenna pointed up and away from the at the required separation distance. The belt clip is forstorage only. DO NOT TRANSMIT WHILE USING THE BELT CLIP. To transmit, hold the device away fromyour body and ensure the antenna is at least 2 inches (5 centimeters) from your body when transmitting.Quick referenceOperation summaryYou should now be familiar with your transceiver. Now you know how very easy it is to use one of its menucommands. Follow this quick reference.1) Press repeatedly the MENU key until the required setting appears on the LCD.2) Perform one of the following actions:• If the related message is followed by Ok, press the key to enter the setting.• If two arrows are present in each side of the LCD, press either or respectively todecrease or increase the setting.• If two parameters appears in each side of the LCD, press either or respectively toactivate the left or right parameter.3) If necessary do what is described for that particular setting press and hold (call) button in case ofDTMF sending).4) To exit from the menu command press and hold the (clear) key for 2 seconds.LCD Memo reference guideAs soon as you have read the entire manual, the following table references the meaning of each LCDmessage to help you quickly locate each function / setting. This is just a memo, for further details pleasesee the related paragraph.
HP125 User manualPage. 29LCD Message Description For full details please see…Channel Operating channel selection (if more than one previouslyprogrammed). Use and to select the needed channel.Channel selectionSquelch Squelch (audio mute in open traffic mode) adjustment. Use and to select the level.Adjusting squelchPower Allows adjusting the transmission output power. Use and to select L (Low) or H (High).Adjusting transmission powerContrast Display contrast adjustment. Use and to select it. Adjusting display contrastg2 Scan g1 Channel scanning. If you have only one programmed group use to activate the scanning. If you have two groups, press toscan group 1 or to scan group 2. Press and hold g1 or g2 toscan both.Scanning channelsF Lock P Radio lock against misuse. Press to lock the keypad only or to lock the entire radio.Radio lockAddrBook Ok (Selcall) Display the preprogrammed Address book. Press toaccess the book, then use and or the keypad to selectthe address to call Press and hold the key to call the address.Stored callCallQueue Ok (Selcall) Display the addresses of the last 10 received addresses(to recall the callers). Press to access the call queue, then use and to select an address. Press and hold the key tocall, or Press and hold the key to delete it.Who-has-called callStatusDig Ok (Selcall) Sends the previously programmed status messages. Press to access the status list, then use and to select theneeded status. Press and hold the key to confirm the selectedstatus.Sending status messagesSend SDM Ok Allows editing an FFSK text message (SDM). Press to startediting the message (use the keypad to edit). Press and hold the key to send the message.Sending FFSK free messagesMSGQueue Ok Display the last 5 received FFSK messages. Press to accessthe message queue, then use and to scroll through themessages.Checking FFSK free messagesDTMF Send Ok To edit and send a DTMF pattern. Press to start editing thepattern (use the keyboard to edit). Press and hold the to send.Sending DTMF patternsVOX Allows selecting the VOX sensitivity for handsfree operation(through an external headset). Use and to select thelevel. Press and hold key to escape command mode.Hands free transmission
HP125 User manualPage. 30Main SpecificationsGeneralFrequency Bands VHF (HP125): 136÷174 MHz (136÷162 / 146÷174 MHz)UHF (HP425): 400-520MHz (400÷440/440÷470 /470÷520)Number of Channels up to 280Frequency Control synthesizerModulation System F3E / G3EChannel spacing 12.5 / 25KHzTemperature Range -30 / +60 °C operative, -40 / +80 °C storageHumidity 90% not condensing @ 40°CPower Supply NiMH battery 1,200mA/hRF Impedance 50ΩAntenna socket MX thread typeFrequency Stability better than ± 2.5ppmTransmitterOutput Power 5 W VHF/4W UHF,High / low level programmable channel dependentModulation System FM (F3E) / PM (G3E)Maximum Deviation ±2.5 KHz@12.5KHz, ±5 KHz@25KHzAdjacent Channel Power < -60dBcSpurious Emissions Switching < 0.25µW 9KHz÷1GHz, <1µW 1÷4GHzBandwidth full bandReceiverCircuit Type Double ConversionIntermediate Frequencies I: 45 MHz, II: 455 kHzSensitivity < 0.25µV @ 12 dB SINADIntermodulation Rejection > 65dBSpurious Response Rejection > 70dBAdjacent Channel Selectivity > 60dB 12.5KHz, 70dB 25KHzSwitching Bandwidth full bandSquelch threshold 0.18µVSquelch hysterisis < 3dB
HP125 User manualPage. 31AF & signalingAudio power > 500mW @ 10% distortionCTCSS sensitivity < 6dB SinadCTCSS selectivity accept tones +/-0,5%Selcall sensibility > 99% @ 12 dB Sinad> 95% @ 10 dB SinadSelcall selectivity accept tones +/-1,5%reject tones +/-3%Mechanical SpecsSize (mm) 148 x 36 x 60Weight 385 g.Display backlit LCD 2 x 12 char alphanumericKeyboard 12 + 3 function keys + UP/DOWN/MENUkeys + Emergency keyBattery back slide batteryRadio and key paint grease resistantShock resistant follow MIL STD 810Water & dust IEC529 IP54Environmental: IEC529 IP54 and MIL STD 810 C,D,E
HP125 User manualPage. 32IndexAAddress book 18AdjustingDisplay Contrast 16Squelch 14Transmission Power 16Volume 14Antennafitting/removing 11BBattery chargerrapid (optional) 27standard 12Battery packCharging 12Battery packscleaning 26Erasing memory effect 25Information on rechargeable batteries 24Memory effect 24Proper changing 24Warnings for battery and chargers use 25Belt clip 11CCall Queue 19Care and Maintenance 24Carrying case 27Channel selection 14Cleaning the radio 26Connectors 26ContrastLCD adjusting 16Conventions and Symbols 6DDisplay 8Adjusting contrast 16DTMFSending patterns 22FFFSKChecking free messages 22Sending free messages (SDM) 21HHandsfree transmission (VOX) 22LLCDAdjusting contrast 16
HP125 User manualPage. 33MMemory effect 24Microphone connector 27OOptional accessories 27Carrying case 27Rapid charger 27Spare battery pack 27Output powerAdjusting 16PPart Names and their functions 7Powerbutton 13ON/OFF 13TX output adjustment 16QQuick reference 28LCD memo reference guide 28Operation summary 28RRadio lock 17Radio maintenance 26Rapid charger 27Reception 13SSafety 4Scanning channels 16SDM See FFSK, Sending free messages (SDM)SelcallAddress book 18Call Queue 19Manual call 20One touch call 20Reception 18Sending a Selcall 18Sending status messages 21Transmission 18Sendinga Selcall 18DTMF patterns 22SetupBattery pack 11Belt clip 11Charging the battery pack 12Fitting antenna 11Package contents 10Unpacking 10Specifications 30AF & signaling 31General 30Mechanical specs 31Receiver 30Transmitter 30
HP125 User manualPage. 34Squelch adjusting 14Stored call (Address book) 18Switching the radio ON/OFF 13TTransmission 15Transmission Power 16VVOX 22WWarning notes 4Warnings for battery and chargers use 25

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