IN THIS MANUAL… 5.3.a Antenna 5.3.b Power supply 5.3.c Connection/Disconnection of the microphone 10 GENERAL INFORMATION FOR THE HM35S SERIES 5.3.d External speaker (optional) ABOVE ALL… SAFETY! BASIC OPERATIONS Conventions and Symbols Used in This Manual Turning HM35S on/off Warnings Volume adjustment Security Channel selection...
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ADVANCED FUNCTIONS Channel scanning 9.1.a Activation/deactivation of scanning Talk Around Error messages 10 CLEANING AND MAINTENANCE 11.1 Cleaning the radio 11.2 Connectors 11 OPTIONAL ACCESSORIES 12 CONNECTIONS 12.1 Input/Output rear connector 13 TECHNICAL SPECIFICATIONS 13.1 Test methods 13.2 Specifications table In this manual...
2 ABOVE ALL… SAFETY! 1 GENERAL INFORMATION FOR THE HM35S SERIES 2.1 Conventions and Symbols Used in This Manual This user’s manual describes the standard functions of the HM35S Notes such as this one indicate practical advice that we series of vehicular transceivers, available in different versions which recommend following for simplified use of the device, and for vary according to frequency band.
2.3 Security signed to be used in extreme environmental conditions, though Your portable ALAN HM35S transceiver is designed to give excessive heat or cold should be avoided (outside the values of you maximum security and reliability. As with all electrical de- the specifications outlined in Chapt.
(EME) at radio frequency (RF), and as such must be installed and placed in operating conditions that are in conformity with the in- structions contained in this manual and with current regulations. Failure to follow these instructions can cause personal injury and/ or serious malfunction of the device.
3 PARTS OF THE RADIO AND THEIR USE 3.1 Front panel Display - constantly displays the operating status of the device (up)/ (down) buttons – for channel selection and naviga- and guides the use of various functions through a series of icons tion of the command menu.
3.2 Rear panel Power cable – this red/black cable connects to a 13.8 Vdc [11] Antenna socket - this SO 239 (UHF) socket is for connecting power source (red is positive and black is negative), for example a suitable antenna. Another option is to use a BNC-type con- to the vehicle battery.
4 CHECKING THE PARTS 5 ADVICE FOR INSTALLATION WARNING! Installation of this device must be performed by qualified persons who are equipped with the proper tools. The 4.1. Package contents information provided below are designed solely as a comple- (a) Transceiver ment to the experience held by the technician, who should as- (b) Power cable sume full responsibility for the installation.
crophone could cause it hitting the vehicle’s parts or surroun- For separation and mounting of the front panel, refer to the instruc- tions found in the kit. ding objects and get damaged. As well, avoid placing the mi- crophone in a location where surrounding objects may cause accidental activation of the push to talk (PTT) button and the- refore transmission.
5.3.a Antenna The transceiver can be programmed so the external speaker is After verifying the efficiency of the external antenna, connect it to the excluded and only the internal one is used. radio’s Antenna socket (refer to par. 5.2) using a suitable connector. 5.3.b Power supply Connect the red/black cable to a 13.8 VDC (+/- 10%) power source.
6 BASIC OPERATIONS 6.2 Volume adjustment To increase volume, turn the On/Off-Volume knob clockwise. IMPORTANT! One or more functions among those described To decrease volume, turn the knob counter-clockwise. from this point onwards can be rendered inactive by your radio network administrator, and depending on the radio’s program- 6.3 Channel selection ming.
6.5 Squelch adjustment 3) Hold down the push to talk (PTT) button on the hand-held mi- crophone. The status LED [8] to the right of the display will light The transceiver is equipped with a device able to suppress back- up in red to confirm that you are transmitting.
automatically restored. For further information, contact your vendor or network administrator. 6.7.b Busy Channel Lock Out (BCLO) Activation of this function impedes the use of the PTT button when the channel is busy. Depending on the programming, the BCLO can act when it picks up any signal, or when a signal is coming from a specific CTCSS/DCS signal.
7 USE OF COMMANDS/OPTIONS 7.2 Meaning of function key icons 7.1 Meanings of display icons Icon Meaning Par. Icon Meaning Monitor is activated Sends fixed selective call - Call 1 Sends fixed selective call - Call 2 Orange Signal received contains correct CTCSS/DSC Send variable user-defined selective call 9.1.a Scanning of active channels...
8 USE WITH CTCSS/DCS AND/OR SELECTIVE CALLS 8.2.b Sending a selective call Depending on the programming, your transceiver may be able to send up to four selective calls: 8.1 Reception • Call 1 – first selective call (fixed) In this operating mode, your radio is programmed so that the audio is •...
8.2.c Sending an emergency selective call 9 ADVANCED FUNCTIONS This is a special call that is sent repeatedly in cycles on a predefined channel based on the radio’s programming. 9.1 Channel scanning Use this emergency call only if you find yourself in a real con- This function is particularly helpful when multiple channels have been dition of necessity which requires assistance.
10 CLEANING AND MAINTENANCE 11 OPTIONAL ACCESSORIES Optional accessories can be used to expand the range of functions Aside from the normal cleaning and connection efficiency check, your radio does not require any particular maintenance. available with your radio. We are constantly developing new options for you, and are pleased to list below the accessories we currently As with all electrical devices, your radio requires periodic la- offer:...
12 CONNECTIONS 12.1 Input/Output rear connector The following table outlines the connections from the rear Input/Output (DB25) connector: Signal name Notes INPUT/OUTPUT 2 AUX OUT INPUT/OUTPUT 1 Not connected External alarm input EXT SPEAKER Emergency switch - input FLAT UN-SQ RX AUDIO Ignition sense input DE-EMPH-SQ RX AUDIO Faulty connections may seriously damage your radio.
13 TECHNICAL SPECIFICATIONS 13.1 Test methods • ETS 300-086 / ETS 300-113 (optional “modem board”) • IEC 529 IP54 and MIL STD 810 C/D/E 13.2 Specifications table General Characteristic Units Value/Measurements conditions Frequency from 135 to 174 Operating Band Number of Programmable Channels up to 32 Channel Spacing 12.5 / 20 / 25...
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Transmitter Output Power (±1 dB) 10 / 25 (depending on the version) Spurious Emissions µW from 9 KHz to 1 GHz < -36 dBm from 1 to 4 GHz < -30 dBm Modulation System FM (F3E) / PM (G3E) Maximum Deviation ±...
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