Alan HP 425-K Specifications

IN THIS BOOK… 1Introduction2Warning notes2Safety3Conventions and symbols in this book4PART NAMES AND THEIR FUNCTIONS 4Top4Front5Side (left and right)6

10 Basic OperationsBasic OperationsThis section describes how the standard operations work. Standardoperation can be changed by programming, moreover

Basic Operations 11Switching the radio ON/OFFTo switch the radio on:1) Hold the (power) button until the radio is switched on: the LCDwill start an a

network in the same frequency, however they are just usefulto avoid disturbing stations not owning of the same networkwith messages not related to the

TransmissionWhen you need to transmit please get used to follow all these steps:1) Ensure that the channel is not busy (otherwise you will create anin

Adjusting transmission PowerYour HP 125-K/HP 425-K can transmit with two power levels accordingto the distance of your party station(s). Low and High

and transmit in the priority channel or in the first available vacantchannel, depending on programming.2 Channel scan can be programmed by your radio

16 Selcall and CTCSS/DCS Operation ReceptionSelcall and CTCSS/DCS OperationReceptionDuring CTCSS/DCS and Selcall operation the radio may be set-upso t

Selcall and CTCSS/DCS Operation Reception 17Stored call (Address book)This mode allows you to originate a call by using a convenientalphanumeric addre

18 Selcall and CTCSS/DCS Operation ReceptionWho-has-called call (Call Queue)This is a convenient facility which is useful to check who has calledyou a

Selcall and CTCSS/DCS Operation Reception 19After the call from Mike(ID 08)1 st Mike 082 ndJohn 013 rdRobert 054 thMary 075 thHeadoffice 156 thLyndsay

2 IntroductionIntroductionCongratulations. HP 125-K/HP 425-K is an advanced PMR(Professional Mobile Radio). Its rugged design allows it to be yourreli

20 Advanced OperationsAdvanced OperationsIn this section we’ll describe some advanced operation which youcan do with your handheld transceiver:Sending

Advanced Operations 21DTMF pattern:1) Repeatedly press the MENU key in order to access the commandmenu and see on the display the message DTMF Send Ok

22 Care and Maintenancemicrophone sensitivity value.3) Ensure that the headset’s built-in microphone is located close tothe side of your mouth.4) Pres

Erasing memory effectMemory effect can be easily erased just by applying 3-4 deepercharge/discharge cycles:1) Use the battery fitted in the radio and

24 Care and MaintenanceI Use only genuine batteries and chargers. The use of nongenuine accessories may cause burns, fire or explosions;making serious

Optional accessories 25• The suggested speaker input impedance is 8 Ohms• The microphone should be condenser low-impedance type.• Any accessory should

Quick referenceOperation resumeShould you are now familiar with your transceiver you do know nowthat it’s very easy to use one of its menu command, yo

Quick reference 27LCD Memo reference guideAs soon as you have read the whole manual, the following tableresumes the meaning of each LCD message to hel

28 Quick referenceLCD MessageCallQueue OkStatusDig OkSend SDM OkMSGQueue OkDTMF Send OkVoxDescription(Selcall) Display the addresses of the last 10 re

Main Specifications 29Main SpecificationsGeneralFrequency Bands VHF (HP 125-K): 136÷174 MHz (136÷162 / 146÷174 MHz)UHF (HP 425-K): 400÷520MHz (400÷440

Introduction 3or in an explosive atmosphere.• Don’t transmit without the antenna fitted on the radio. Thoughit is provided with a protection, it may d

30 Main SpecificationsSensitivity < 0.25µV @ 12 dB SINADIntermodulation Rejection > 65dBSpurious Response Rejection > 70dBAdjacent Channel Se

Channel selection 12Chargersee Battery chargerCleaning the radio 24Connectors24ContrastLCD adjusting14Conventions and Symbols3DDisplay7Adjusting contr

Spare battery pack 25Output powerAdjusting14PPart Names and their functions4Powerbutton11ON/OFF 11TX output adjustment14QQuick reference26LCD memo ref

4 Part Names and their functionsPart Names and their functionsPlease have a look to the following parts description in order tofamiliarize with the tr

Part Names and their functions 5[6] Speaker. The reception sound is emitted by the built in speakerlocated in this point.[7] (power) button. Keep pres

1519201718166 Part Names and their functions[15] Microphone connector. For remote speaker/microphone,headsets for VOX use and other accessories. It mu

DisplayThis section explains the meaning of the various indications whichmay appear on the LCD of your HP 125-K/HP 425-K handheldtransceiver:Radio is

8 SetupSetupUnpackingThe following items are in the package:(a) Transceiver’s main body(b) Rubber ducky antenna(c) Battery pack NiMH 1,200 mA/h(d) Sta

Setup 92) Gently slide the battery pack toward the transceiver’s back edgekeeping it slightly pressed onto the metallic back surface.3) At approx. 1.5