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Filser Electronic ATR 720 C Installation Manual

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ATR 720 C
VHF TRANSCEIVER
INSTALLATION
MANUAL
Handbook No.:003.8000
Issue: 01/04/1998 720C installation Man.DOC

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Summary of Contents for Filser Electronic ATR 720 C

  • Page 1 ATR 720 C VHF TRANSCEIVER INSTALLATION MANUAL Handbook No.:003.8000 Issue: 01/04/1998 720C installation Man.DOC...

  • Page 2: Table Of Contents

    Sidetone Adjustment....................10 2.2.4 External Audio-Frequency Volume Adjustment............10 2.2.5 Interphone Interconnection ..................11 2.3 ATR 720 INSTALLATION....................11 2.4 PS-2814-Installation.......................11 2.5 Antenna Installation.......................11 2.6 Cabling..........................12 2.7 OPERATION ........................14 2.7.1 General ........................14 2.7.2 ATR 720 C COMM Multifunction Control ..............14 2.7.3 POST INSTALLATION CHECKOUT ................15...

  • Page 3: Section 1.1 Introduction

    ATR 720 manufactured by Filser Electronic GmbH . PURPOSE OF EQUIPMENT The ATR 720 C COMM combines in a single panel mounted unit a 720 channel VHF COMM Transceiver with a microprozessor controlled frequency entry DESIGN FEATURES A.

  • Page 4: Power Requirements

    86875 Waal POWER REQUIREMENTS The ATR 720 C requires 13.75 volts for proper operation. Aircraft having electrical power plants producing 27.5 volts, require the installation of a voltage converter. The PS 2814 Voltage Con- verter, designed to convert 27.5 volts to 13.75 volts, may be conveniently remote mounted in the aircraft.
  • Page 5 Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 5 86875 Waal VHF POWER OUTPUT: Min. 4W/50 load Modulation: 85% modulation capability with 90% limiting, less than 15 % distortion at 80 % mod. Microphone: Carbon or dynamic mike (adjustable)

  • Page 6: Units And Accessories Supplied

    Output Current 50% duty 5,0 A Units and Accessories Supplied ?? ATR 720 COMM ?? ATR 720 C installation kit includes mating connectors, radio rack mounting hardware, etc. Accessories Required but not Supplied ?? Communication antenna and cables ?? Headphones and speaker - Headphones: Low impedance types, 200 to 1000 ohms.

  • Page 7: Section Ii Installation And Operation

    Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 7 86875 Waal SECTION II Installation and Operation General This section contains suggestion and factors to consider before installing the ATR 720 COMM unit and PS 2814 Voltage Converter (27.5 V installations only ). Close adherence to these sug- gestions will assure a more satisfactory performance from the equipment.
  • Page 8 Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 8 86875 Waal Figure 2.1 Figure 2-1 BENCH TEST SET-UP...

  • Page 9: Electrical Bench Test

    Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 9 86875 Waal 2.2.1 Electrical Bench Test Test Equipment Recommended VHF Signal Generator: HP Model 608D or equivalent. RF Power Wattmeter: Bird Truline Model 43 or equivalent. Regulated DC Supply with 12 to 15 Vdx at 2 amperes capability.

  • Page 10: Sidetone Adjustment

    Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 10 86875 Waal 2.Carbon Standard Microphone or Dynamic Microphone with Preamplifier Using a carbon standard microphone or a dynamic microphone with preamplifier turn the mi- crophone gain trim-potentiometer R 3104 full...

  • Page 11: Interphone Interconnection

    Close adherence to these suggestions will assure more satisfactory performance from jour equipment. 1. The ATR 720 C is mounted rigid in the aircraft panel. Determine that the location and in- stallation of radio equipment provides sufficient visibility and handling of the controls for the pilot in his normal position.

  • Page 12: Cabling

    Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 12 86875 Waal Cabling 1. The length and routing of the external cables must be carefully studied and planned prior to in- stallation. Avoid sharp bend placing cables to near the aircraft control cables.
  • Page 13 Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 13 86875 Waal FIGURE 2-6.1 INTERCONNECTION DIAGRAM...

  • Page 14: Operation

    86875 Waal OPERATION 2.7.1 General All controls required to operate the ATR 720 C are located on the front panel. 2.7.2 ATR 720 C COMM Multifunction Control 2.7.2.1 Comm – On/Off-Switch-Multifunction Control The multifunction- ON/OFF-switch is located in the upper Right-hand corner. The transceiver is activated the switch is turned clockwise beyond the „off-position click“.

  • Page 15: Post Installation Checkout

    Filser Electronic GmbH ATR 720 C Communications Transceiver Gewerbestraße 2 page 15 86875 Waal keys (1 – 0 frequency-locations). The memory is maintained even when the unit is switch off. CLEAR. Depressing the CLEAR-Key erases the activated frequency. At the same time the LCD-display is cleared.

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