2 2 3 4 4 4 5 6 7 8 8 8 8 9 9 10 11 11 12 12 12 13 14 14 14 15 16 16 16 16 17 "Who-has-called" call (Call Queue) Manual call One touch call ADVANCED OPERATIONS Sending status messages Sending FFSK free messages (SDM) Checking FFSK free messages (SDM) Sending dtmf patterns Handsfree transmission (VOX) CARE AND MAINTENANCE Battery packs Information on rechargeable batteries Properly charge of battery packs Memory effect Erasing memory effect Warnings for battery and chargers use Radio maintenance Cleaning
English Introduction Warning notes Congratulations. HP 125-K/HP 425-K is an advanced PMR (Professional Mobile Radio). Its rugged design allows it to be your reliable partner even during hard working days. Its large LCD as well as user friendly controls make the maximum ease of use. HP 125-K/HP 425-K is a real system radio, supporting CTCSS/DCS, 5 tone signalling systems (encoder/decoder up to 28 + 28 tones), FFSK, DTMF and trunking system property.
This product complies with the requirements of the Council Directives 89/336/EEC and 73/23/EEC on the approximation of the laws of the member states relating to electromagnetic compatibility and low voltage. Conventions and Symbols in this Book 2 This symbol marks a ‘note’. Notes are hints or tips which offer additional information to help you. I This symbol marks a ‘caution’.
Part Names and their functions Top 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. 1 English 5 4 3 [1] [2] [3] 4 Part Names and their functions 2 Antenna connector. Fit the antenna to this connector (MX thread type). Programming connector (under the protection cap - for authorized dealers/service stations only).
[6] Speaker. The reception sound is emitted by the built in speaker located in this point. [7] (power) button. Keep pressed this key to turn the transceiver on and off. LCD display. Shows the radio’s parameters (channel number etc.). Icon and symbols are further explained in the paragraph “Display”. Whenever any key is pressed the display is automatically backlit for few seconds. [8] 6 (up) and (down) buttons. For scrolling forward and backward through function list and for changing function values.
Side (left and right) English 20 15 19 18 17 16 6 Part Names and their functions [15] Microphone connector. For remote speaker/microphone, headsets for VOX use and other accessories. It must be protected with the supplied rubber cap when not in use. For the related pin connections please see to “Microphone connection”. [16] Battery pack. This NiMH battery pack supplies energy to your radio. [17] Release button (located on the battery’s body). Allows to remove the battery pack. [18] CALL 1 button.
Display This section explains the meaning of the various indications which may appear on the LCD of your HP 125-K/HP 425-K handheld transceiver: English Radio is transmitting (status LED will glow red at the same time) Loudspeaker is enabled (you will hear audio communications and/or noise) DTMF is enabled CTCSS/DCS tone detected Selective call detected Scrambler enabled Battery Level (as many bars you will see as higher is the residual duty) Keypad lock enabled Receive mode (squelch is open) Reception fi
2 Setup English Unpacking The following items are in the package: (a) Transceiver’s main body (b) Rubber ducky antenna (c) Battery pack NiMH 1,200 mA/h (d) Standard battery charger composed by two parts: • Cradle • AC adapter (e) Belt clip (f) User’s guide (this book!) If something is missing please promptly advise your supplier. The supplied antenna is broadband type and covers the whole spectrum, so it doesn’t need any alignment procedure.
To remove the belt clip: 1) Remove the battery pack as explained in “Installing/removing the battery pack”. 2) Reverse the over stated step 2. I Don’t forget to remove the battery pack before fitting/removing the belt clip, otherwise the operation may result harder to perform. Moreover the battery case might be accidentally scratched.
English 1) Connect the jack coming from the AC adaptor to the cradle’s socket located in its right side. 2) Connect the AC plug of the AC adaptor’s power cable into an earthed AC power outlet: the built-in green LED of the cradle will glow. 3) Ensure that the radio is switched off, otherwise switch it off by holding the (power) key pressed (release it after the radio is switched off).
Reception To switch the radio on: Your radio could be previously programmed to work, channel by channel, in “Open traffic”, “CTCSS/DCS” or “Selcall” mode. Please have a look to each description and ask your radio network manager or dealer which mode your radio channels work. • OPEN TRAFFIC: in this case you will hear any communication which will be transmitted on the selected channel.
English network in the same frequency, however they are just useful to avoid disturbing stations not owning of the same network with messages not related to them. In any case, if more than one station is transmitting at the same time, this will cause an interference. Don’t transmit if the status LED is glowing or the icon is on the LCD. Wait till nobody is transmitting on the channel.
key repeatedly to decrease the squelch level: after 3) Press the the level 1 you will see OFF (squelch disabled) and you will also see the icon . 4) Press the key repeatedly in order to select the minimum squelch level in which the icon steadily disappears (normally 2 will do). 5) Repeatedly press the MENU key repeatedly to go through the next menu item or press and hold to go to the previous menu item, or press the (clear) key to escape the menu and restore the normal LCD condition.
English Adjusting transmission Power Adjusting display contrast Your HP 125-K/HP 425-K can transmit with two power levels according to the distance of your party station(s). Low and High levels can be defined by default during programming, however we do recommend, when possible, to use the Low power: it will increase the battery duty and will reduce the risk to make interference with stations not owning to your radio network which may sharing the same channel with you.
g2 Scan g1 2) Now you can activate the scan as follows: • If you have only one group available press the key. • If you have two groups programmed, press to scan the g2 to scan g1. group or • If you simultaneously want to scan the 2 groups, press and hold g1 or g2. In both cases you will see Scanning and the channel names cycling continuously. The scanning starts from the lowest address number toward the highest.
English To unlock the radio: 1) If the radio is in Partial lock then press the MENU key: the display will read PIN .... else go directly to point 2. 2) Enter the PIN (four digits): the radio will be unlocked. 2 If you entered the correct pin then the radio will return to normal operation mode; if you entered the wrong pin radio remains locked.
Headoffice John Mary Mike Robert ..... ..... 15 01 07 08 05 XX XX 2 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 in order to access the command menu and see on the display the message AddrBook Ok. 4) Hold pressed the (call) button to call the selected address. 2 If you made a mistake in recalling an address you can abort the call operation at step 4 by pressing the (clear) button.
English Who-has-called call (Call Queue) This is a convenient facility which is useful to check who has called you and eventually call back him/her.
Before the call from Mike (ID 08) st 1 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th 9 th 10th John Robert Mary Headoffice Lyndsay Mike Branch William Ann Peter After the call from Mike (ID 08) 01 05 07 15 21 08 33 55 16 19 st 1 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th 9 th 10th Mike John Robert Mary Headoffice Lyndsay Branch William Ann Peter 08 01 05 07 15 21 33 55 16 19 Manual call If the radio network administrator or your dealer has enabled in your unit the manual definition of variable address digits: 1) Just
English Advanced Operations Sending FFSK free messages (SDM) In this section we’ll describe some advanced operation which you can do with your handheld transceiver: 1) Repeatedly press the MENU key in order to access the command menu and see on the display the message Send SDM Ok. Sending status messages Status digits allow you to transmit some previously programmed conditions in which you could momentarily be (e.g. BUSY, FREE, EMERGENCY etc.).
When you receive an SDM (FFSK message) you automatically see it on the LCD. Any key will delete it, however you can see the last 5 received messages at any time, because SDM are queued in a FIFO call queue similarly to the one dedicated for the selective calls (please make reference on “Who-has-called call” in the chapter “Selcall and CTCSS/DCS Operation”). To recall it: 1) Repeatedly press the MENU key in order to access the command menu and see on the display the message MSGQueue Ok.
microphone sensitivity value. Care and Maintenance Battery Packs English OFF Vox 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 stable transmission when speaking with a normal voice level. 5) Hold pressed the stand by condition. I (clear) button to revert the transceiver in We recommend to set the just minimum sensitivity as possible.
Erasing memory effect Memory effect can be easily erased just by applying 3-4 deeper charge/discharge cycles: 1) Use the battery fitted in the radio and wait till the radio switches off. Don’t stop when the last battery bar disappears from the icon, wait till the LCD completely disappears. 2) Wait at least one hour and then try to switch on the radio by pressing the button: you will note that some energy has restored in the battery, because the radio can be switched on.
English I Use only genuine batteries and chargers. The use of non genuine accessories may cause burns, fire or explosions; making serious damages to the radio/battery or serious injuries to people. I Battery chargers are for indoor use only. I Be certain that your power source matches the rating listed for the supplied battery charger (AC Adaptor). If you are not sure, check with your dealer or with your local power company.
Optional accessories Mic GND MIC English These optional accessories can be used to improve the transceiver’s performances: • Spare battery pack. It extends the duty time and minimizes the possibility of memory effect (please see “Memory effect”). • Rapid charger. It recharges the battery packs in 1 hour and provides trickle charge when they reached their full charge. • Carrying case. It protects your radio against small shocks and scratches; the best for use in hard environments.
Quick reference English Operation resume Should you are now familiar with your transceiver you do know now that it’s very easy to use one of its menu command, you just have to do what follows: 1) Press repeatedly the MENU key until the required setting appears on the LCD. 2) Now you can do one of the following actions: key to • If the related message is followed by Ok, press the enter the setting.
LCD Memo reference guide locate each function/setting. This is just a memo, for further details please see the related paragraph. LCD Message Description For full details please see… Channel Operating channel selection (if more than one previously programmed). Use and to select the needed channel. Channel selection Squelch Squelch (audio mute in open traffic mode) adjustment. Use the level. Adjusting squelch Power Allows to adjust the transmission output power. Use or H (High).
English LCD Message Description For full details please see… CallQueue Ok (Selcall) Display the addresses of the last 10 received addresses (to recall the Who-has-called call callers). Press to access the call queue, then use and to select an address. Hold pressed the to call, or hold pressed the to delete it. StatusDig Ok (Selcall) Sends the previously programmed status messages. Press to access Sending status messages the status list, then use and to select the needed status.
Main Specifications Frequency Bands Number of Channels Frequency Control Modulation System Channel spacing Temperature Range Humidity Power Supply RF Impedance Antenna socket Frequency Stability VHF (HP 125-K): 136÷174 MHz (136÷162 / 146÷174 MHz) UHF (HP 425-K): 400÷520MHz (400÷440 /440÷470/490÷520MHz) more than 100 synthesizer F3E / G3E 12.5 / 20 / 25KHz -30° / +60 °C operative, -40° / +80 °C storage 90% not condensing @ 40°C NiMH battery 1,200mA/h 50 Ω MX thread type better than ± 2.
English Sensitivity Intermodulation Rejection Spurious Response Rejection Adjacent Channel Selectivity Switching Bandwidth Squelch threshold Squelch hysteresis < 0.25µV @ 12 dB SINAD > 65dB > 70dB > 60dB 12.5KHz, 70dB 25KHz full band 0.
A Address book Adjusting Display Contrast Squelch Transmission Power Volume Antenna fitting/removing B Battery charger rapid (optional) standard Battery pack Charging Battery packs cleaning Erasing memory effect Information on rechargeable batteries Memory effect Proper changing Warnings for battery and chargers use Belt clip C Call Queue Care and Maintenance Carrying case 17 14 12 14 12 8 Channel selection Charger Cleaning the radio Connectors Contrast LCD adjusting Conventions and Symbols 12 see Batter
English Spare battery pack Output power Adjusting 25 14 P Part Names and their functions Power button ON/OFF TX output adjustment 11 11 14 Q Quick reference LCD memo reference guide Operation resume 26 27 26 R Radio lock Radio maintenance Rapid charger Reception 15 24 25 11 S Safety Scanning channels SDM Selcall Address book Call Queue Manual call One touch call Reception Sending a Selcall 32 Index 4 2 14 see Sending FFSK free messages 16 17 18 19 19 16 16 Sending status messages Transmission S
