TKM MX170C Owner's Manual
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TKM MX170C Owner's Manual

760 channel communication (comm) transceiver for use in aviation services and a 200 channel navigation (nav) receiver
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MX170C NAV-COMM OWNER'S MANUAL
TK M , INC
rd
14811 NORTH 73
STREET
SCO TTSDALE, AZ 85260
PART# MN0170C, REV. 1
NOV 17,2008

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  • Page 1 MX170C NAV-COMM OWNER'S MANUAL TK M , INC 14811 NORTH 73 STREET SCO TTSDALE, AZ 85260 PART# MN0170C, REV. 1 NOV 17,2008...

  • Page 2: Purpose Of Equipment

    I. INTRODUCTION This manual contains information on the TKM MX170(C), manufactured by TKM, Inc. The information includes installation, operation, mechanical and electrical descriptions and alignment and test considerations. The MX170(C) is authorized by the Federal Aviation Administration to TSO C34e, C36e, C37d, C38d, C40c, and has met the test requirements of RTCAlDO-160C.

  • Page 3: Specifications

    The MX170(C) is comprised of eight replaceable subassemblies. Five of the subassemblies are contained in shielded modules in order to reduce radio frequency interference. The five are the NA V receiver, the NA V synthesizer, the COMM receiver, the COMM synthesizer, and the Transmitter. The remaining three subassemblies are the Rear Panel Assembly, the Front Panel Assembly and the Computer Board.

  • Page 4: Nav Receiver

    Transm itter VHF Power Output: 8 watts minimum, 50 ohm Modulation: 85% capability with 90% limiting provided. Microphone: Dynamic mike containing transistorized pre-amp or carbon (must provide at least 120 m Vrms into 500 ohm load). Side tone: Adjustable up to 40 mw into 500 ohm headphones.
  • Page 5 Ident Filter: 15 db minimum AGC Characteristics: From 26 to 100.000 uV audio output will not vary more than 1 db. NAV Receiver Accuracy: Two sigma limit, 1 degree NA V Output: With LOC adjusted for 0.35 Vrms VOR Vrms (Typical) into 20K ohms or greater load impedance.
  • Page 6 110 111 0.1 0.3 0.5 0.7 0.9 NOTE: (-) OPEN, (0) GROUND, (1) CONNECTED TO GIS Switching Line Audio Auxiliary Audio Inputs: Three (3) 500 ohms with 30 db isolation between any two. Frequency Responses: Within 6 db from 350 Hz to 2500 Hz Headphone Output: 50 mw into 500 ohm Speaker Output:...

  • Page 7: Installation

    II. INSTALLATION The MX170C is designed to be an exact replacement for the KING KX170A and similar units. As a replacement unit, the MX is inserted directly into the mounting tray for the KX170A and tightened down with an allen wrench (9/64).
  • Page 8 MXI70(B/C) INTERCONNECT The following table lists the pin description for the MX170C external interconnect: Pin # Description Pin # Description NAV A+ DMEMO DMEM1 VORILOC Signal DME M2 ILS ENABLE DME M3 50 KHz GS NAV A+ Switched 0.1 MHz GS DME KO 0.3 MHz GS...
  • Page 9 III. OPERATING THE MX170C Operating controls for the MX170(C) are located on the unit front panel or through three access points in the case (See Figure 2) The unit front panel is shown in Figure 1. The left-hand COMM (yellow) readout indicates the active COMM frequency and the right hand COMM (red) readout indicates the standby COMM frequency.
  • Page 10 (COMM 121.50/120.00) (NAV 108.001112.00). Frequency Storage. The MX170C NAV COMM allows up to 50 NAV and 50 COMM preset frequencies to be stored in the memory for recall. The use of memory presets is described in the following procedures.
  • Page 11 Each time this operation is repeated, it will copy the "next" preset to the COMM standby frequency. NAV preset operation is similar, with the exception that presets are retrieved by pressing and holding the NAV F-F while pressing the VC - ID. MX170C FRONT PANEL...

  • Page 13: Equipment Limitations

    IV. EQUIPMENT LIMITATIONS The following limitations indicate where the MX170C may be installed and meet the applicable TSO requirements. Equipment is intended for installation within a non-pressurized but controlled temperature location in an aircraft that is operated at altitudes up to 35000 feet MSL.

  • Page 14: Environmental Qualification Form

    V. ENVIRONMENTAL QUALIFICATION FORM Model MX170C NA V I COMM as specified in MX170C Specifications manufactured by TKM, Inc., 14811 NORTH 73 STREET, SCOTTSDALE, AZ 85260. CONDITIONS D0160C para DESCRIPTION OF TEST Temperature and Alt. Category C1 Low Temperature 4.5.1...
  • Page 15 RF Emission 21.0 Category B Installation Instructions: The MX170C is designed to be a slide in replacement for ARC radios and, as such, shall be installed with all of the original equipment precautions.

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