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Entel HT446 Owner's Manual

Pmr446 submersible transceiver
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HT446
V04/06
PMR446 submersible transceiver
OWNERS MANUAL
SCMB
Submersible
Dependable
Tough

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Summary of Contents for Entel HT446

  • Page 1 HT446 V04/06 PMR446 submersible transceiver OWNERS MANUAL SCMB Submersible Dependable Tough...

  • Page 2: Declaration Of Conformity

    CE COMPLIANCE STATEMENT The HT446 transceiver displays "CE" on the serial number label, indicating its compliance with the essential requirements of the EEC directive for Electromagnetic Compatibility. DECLARATION OF CONFORMITY We Entel UK Limited, 4 Elstree Gate, Elstree Way Borehamwood, Herts...

  • Page 3: Table Of Contents

    INDEX 1.1 INTRODUCTION 1.2 GENERAL FEATURES 1.3 PACKING LIST 1.4 OPTIONAL ACCESSORIES 1.4.1 ATTACHING AUDIO ACCESSORIES 1.5 CONTROLS AND INDICATORS 1.6 LCD INDICATORS 1.7 RECEPTION 1.8 TRANSMISSION 1.9 ADDITIONAL FEATURES 1.10 VOICE OPERATED TRANSMIT (VOX) 1.11 SIMPLE MODE (B version) 2.0 INCLUDED TRICKLE CHARGER model CCA230 2.1 OPTIONAL CHARGER model CSA640E 2.2 BATTERY INDICATOR...

  • Page 4: Introduction

    1.1 INTRODUCTION The Entel HT446 is a professional PMR446 handheld transceiver that operates on the licence exempt UHF band. The HT446 has 8 radio channels (maximum available on PMR446). To minimise interference each channel may be used with any of 38 CTCSS or 83 DCS tones.

  • Page 5: Optional Accessories

    1.4 OPTIONAL ACCESSORIES The HT446 is supported by a wide range of essential accessories. For an up to date list visit our web site at www.entel.co.uk Single pod intelligent rapid charger, 110/230v operation CSA640E Six pod intelligent rapid charger, 110/230v operation CSB640E 230v drop in trickle charger.

  • Page 6: Attaching Audio Accessories

    1.4.1 ATTACHING AUDIO ACCESSORIES Locate accessory connector cover marked "ACC". Lift cover and rotate (screw) the connector clockwise. Note: The accessory socket is waterproof without the ACC cover in place. However, when not using an audio accessory we strongly advise keeping the ACC cover firmly pressed in its recess to prevent foreign objects from getting into the socket.

  • Page 7: Controls And Indicators

    3. To attach the battery: firstly, place the battery against the To remove rotate bottom of the radio, then the screw anti-clockwise hinge the battery into place against the transceiver. Rotate the battery locking screw clockwise taking care not to over tighten the screw.
  • Page 8 ACCESSORY CONNECTOR POWER SWITCH LAMP/LOCK SCMB UP/DOWN Enter BATTERY PACK Figure 3. CONTROLS & INDICATORS...

  • Page 9: Lcd Indicators

    ENTER BUTTON Used to save your settings. ACCESSORY CONNECTOR Allows you to connect any Entel approved audio accessory to your HT446 radio. LAMP/LOCK BUTTON Used to illuminate display and lock/unlock keypad. 1.6 LCD INDICATORS SCMB Figure 4. LCD indications CHANNEL DISPLAY The far right (largest) number indicates the operating channel (1-8).

  • Page 10: Reception

    Indicates vibrate mode enabled, the transceiver will Vibrate during the initial call. SCMB Scrambler enabled. Feature only available in certain countries CALL Call alert feature. You may select one of 20 individual call tones. 1.7 RECEPTION 1. Turn the transceiver on by rotating the volume control in a clockwise direction.

  • Page 11: Additional Features

    1.9 ADDITIONAL FEATURES The HT446 transceiver incorporates a number of unique features which will enhance the overall performance of your radio system. With the power switched on press the "FCN" function key until the desired function is displayed. The functions are displayed in the...

  • Page 12: Voice Operated Transmit (Vox)

    CALL The call alert feature allows you to send one of 20 distinctive alert tones to another user in your system. To enable the CALL feature press "FCN" twice. CALL will flash on the LCD. As default it is switched off. To switch this feature on press either the UP or DOWN channel button to scroll through the alert tones.
  • Page 13 Channel Scan (1) All channels will be scanned in sequence. If a signal is received the HT446 will stop on the channel. If you wish to skip active channels press either the UP or DOWN keys to resume scanning.
  • Page 14 Either move away from the equipment, or change the squelch level to a lower setting. Note : If using CTCSS or DCS on your HT446 you will not get squelch breakthrough. To change the squelch level press "FCN" eight times. As default the squelch level is set to 5.

  • Page 15: Simple Mode (B Version)

    3 seconds. Monitor button <> The monitor button defeats any CTCSS or DCS tone programmed into your HT446. In addition to radio etiquette the monitor facility is used to listen to weak signals. 1.11 SIMPLE MODE We understand that some users would find the commercial grade, submersible construction of HT446 appealing but prefer not to have the feature rich options offered by the HT446.

  • Page 16: Included Trickle Charger Model Cca230

    2.0 TRICKLE CHARGER model CCA230 (CCA110 for 110VAC) 1. Connect the CWC640 AC adaptor to the CCA230 charger pod. The LED status light will illuminate green indicating ready for charge. DC12V 2. Turn the transceiver off. Figure 5. CCA230 Charger pod 3.

  • Page 17: Battery Indicator

    2.1 CSA640E RAPID CHARGER Continued: 2. Turn the transceiver off. 3. Insert the battery pack into the CSA640E charger, either with or without the transceiver attached. The LED will illuminate red to indicate rapid charge in progress. 4. Charge time for a fully discharged battery pack will take up to 120 minutes.

  • Page 18: Battery Safety

    2.3 BATTERY SAFETY The battery pack of your transceiver contains lithium-Ion cells. This type of battery stores a charge powerful enough to be dangerous if misused or abused, especially when removed from the transceiver. Please observe the following precautions: DO NOT SHORT BATTERY PACK TERMINALS Shorting the terminals that power the transceiver can cause sparks, severe over heating, burns, and battery cell damage.

  • Page 19: Trouble Shooting Guide

    Unintelligible Audio signal Voice scrambler not Ensure scrambler either received or transmitted enabled on receiving HT446 enabled or disabled to be compatible with other radios Status LED flashes green The channel is active but Press monitor button to...

  • Page 20: Specification (General, Receive And Transmit)

    2.5 SPECIFICATION (General, receive and transmit) Performance specifications are nominal, unless otherwise indicated, and are subject to change without notice. GENERAL Number of Channels Frequency Range 446.00625MHz ~ 446.09375MHz Channel Spacing 12.5KHz Channel Increments 6.25KHz Size (WxDxH) 59 x 33 x 130mm Weight (With Battery and Antenna) 296g Battery Voltage...
  • Page 21 RECEIVER Sensitivity (12dB SINAD) >0.35uV Max. Squelch Sensitivity >User adjustable Adjacent Channel Selectivity (ETS)-Wide Band 70dB Min. Spurious Rejection (ETS) 70dB Min. Intermodulation (ETS) 65dB Min. Hum and Noise Ratio 40dB Min. Rated Audio Output at 5% T.H.D.(1KHz) 500mW Typical TRANSMITTER RF Output Power-(ERP) 500mW...

  • Page 22: Notes

    2.6 NOTES Use this page to record important information, such as the serial number of your HT446 transceiver, and any of the frequencies and sub-tones programmed by your dealer.
  • Page 24 □ □ IRL □ ESP □ DEN □ FRA □ POR □ FIN Registered Community Design Application 000044375 U.S. Design Patent Pending No. 29/183,829 Copyright and Unregistered Design Right Entel UK 2003. All rights reserved Copyright Entel UK Ltd, London...

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