TDFM-136B VHF/FM DIGITAL AIRBORNE TRANSCEIVER INSTALLATION INSTRUCTIONS Til Document No. 08RE398 Rev. N/C Issue 2 DEC 2010 Technisonic Industries Limited 240 Traders Blvd. E. Mississauga, Ontario L4Z 1W7 Tel: (905) 890-2113 Fax: (905) 890-5338 3840 E. Robinson road, Suite 214, Amherst, New York 14228 Tel: (716) 691-0669 This document contains designs and other information which are the property of Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398 ! CAUTION STATIC SENSITIVE ! This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive gloves when handling printed circuit boards. FCC COMPLIANCE This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.
08RE398 TDFM-136B Installation Instructions STC APPROVALS Presently no TSO standard exists for airborne FM transceivers.
TDFM-136B Installation Instructions 08RE398 Document Revision Table for 08RE398 Rev. / Issue Page Description v Date Appr.
08RE398 TDFM-136B Installation Instructions Table of Contents Table of Contents............................................................................................................................ vi Table of Tables............................................................................................................................... vii Table of Figures..............................................................................................................................
TDFM-136B Installation Instructions 08RE398 Table of Figures Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Transceiver Mounted View of the 15 Pin Connector.................................................2-2 Wiring Connections for TDFM-136B Transceiver.......................................................2-3 Outline Drawing for TDFM-136B Transceiver............................................................2-4 Control points for the TDFM-136B MCU Board.................................................
08RE398 TDFM-136B Installation Instructions viii
SECTION 1 GENERAL DESCRIPTION 1.1 Introduction This publication provides operating and installation information for the TDFM-136B, Digital Transceiver manufactured by Technisonic Industries Limited. The TDFM-136B is Project 25 (P25), Phase 1 compliant. The unit offers digital or conventional analog FM communications over an extended frequency range with selectable channel spacing and is intended for use (in the U.S.
08RE398 TDFM-136B Installation Instructions 1.4 Model Variation The base Part Number for the Model TDFM-136B is 081252, there are three parameters that affect model variation: display lighting, number of antennae, and encryption operation. The possible combinations result in 12 possible extensions to the base part number, these are shown in Table 1-1 below. Table 1-1.
TDFM-136B Installation Instructions 08RE398 Table 1-3. TDFM-136B – Operational Characteristics Characteristic Specification Frequency Range Operating Modes Channel Spacing: Programmable Memories: Scan Lists Description Operating Modes Frequency Squelch Modes Guard Receiver: Description Operating Modes Frequency Squelch Modes CTCSS Tones DCS Codes P25 TalkGroup P25 Network Access Code (NAC) 136.000 to 174.000 MHz conventional Analog: 12.5 / 25 kHz. P25 CAI: 12 KBPS FSK, 9.6 KBPS C4FM 25 kHz. or 12.
08RE398 TDFM-136B Installation Instructions Table 1-5. TDFM-136B – Transmitter Characteristics Characteristic Specification RF Output Power: Low High Output Impedance Maximum Deviation: Wide (25 kHz) Narrow (12.5 kHz) Maximum Deviation – Narrow Spurious Attenuation Frequency Stability Microphone Circuit Side-tone Output Harmonic Attenuation FM Hum And Noise Audio Input 1 watt 10 watts 50 ohms ± 5 kHz ± 2.5 kHz ± 2.5 kHz (12.5 kHz mode) -90 dB below carrier level ± 2.5 ppm Carbon or equivalent 0.
SECTION 2 INSTALLATION INSTRUCTIONS This section contains information and instructions for the correct installation of the TDFM136B, VHF/FM Digital Transceiver. Make certain that the correct frequencies are pre-programmed in accordance with the equipment user's valid FCC operator's license, prior to installation. 2.1 Equipment Packing Log Unpack the equipment and check for any damage that may have occurred during transit. Save the original shipping container for returns due to damage or warranty claims.
08RE398 TDFM-136B Installation Instructions 2.5 Installation - Pin Locations and Connections A single 15 pin DSUB connector, mounted on the rear of the unit, provides the means to connect all power, control and audio signals between the TDFM-136B and the airframe. The pin numbers and locations for the 15 pin DSUB connector are shown in figure 2-1 below. The view shown is of the connector mounted in the unit, select mating connector appropriately. Figure 2-1.
TDFM-136B Installation Instructions TDFM-136B FM TRANSCEIVER 1 28 VDC POWER 28 VDC POWER 12 7 14 MEMORY UP 4 MEMORY DOWN 5 PANEL LIGHTING 3 600 ohm AUDIO OUT 1 MIC IN SIGNAL GROUND PTT IN 6 10 13 POWER GROUND POWER GROUND 8 15 08RE398 8 3A 3 #20 AWG 28 VDC BUS 9 10 11 #20 AWG 7 RG-142/U OR EQUIVALENT ANTENNA QTY ITEM PART NUMBER DESCRIPTION 2 SPEC 1 1 TDFM-136B VHF/FM COMMUNICATIONS TRANSCEIVER TECHNISONIT INDUSTIRES LTD.
08RE398 TDFM-136B Installation Instructions 2.6 Physical Dimensions Figure 2-3 below shows the physical dimensions of the unit Figure 2-3. Outline Drawing for TDFM-136B Transceiver 2-4 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398 2.7 Wiring Instructions Figure 2-3 shows all required connections and recommended wire sizes for the TDFM136B Transceiver operation in the airframe. 2.7.1 Main Power +28VDC The main power +28VDC (±15%) is connected to pins 7 and 14 of the transceiver. Both pins should be connected. 2.7.2 Main Ground Ground connections for the transceiver are made on pins 8 and 15. Both pins should be 2.7.
08RE398 TDFM-136B Installation Instructions 2.8 Transmitter Side Tone Level Adjustment The side tone level is set at the factory and there is no hardware adjustment. However, this level can be altered, via the radio software, to suit local conditions as follows: 1. Set the transceiver operating frequency to 155.0000 MHz and connect an appropriate test receiver to the RF output connector. Ensure that the output of the transceiver is terminated into a proper dummy load. 2.
TDFM-136B Installation Instructions 08RE398 2.10 Reference Layouts The reference layout shown in figure 3-4 below, shows the position of jumper control points for the MCU board. JP1 P5 P3 P4 059582F JP3 Figure 2-4. Control points for the TDFM-136B MCU Board JP1: JP3: P3: P4: P5: Front Panel Power Switch bypass jumper. Insert a shunt to power unit with no front panel attached. Default: no shunt installed.
Technisonic Industries Ltd.
SECTION 3 Appendicies 3.1 Appendix A CTCSS TONE TABLES and DCS CODE TABLES Available CTCSS Tones Technisonic Industries Ltd. Available DCS Codes Tone Code 67 69.3 71.9 74.4 77 79.7 82.5 85.4 88.5 91.5 94.8 97.4 100 103.5 107.2 110.9 114.8 118.8 123 127.3 131.8 136.5 141.3 146.2 151.4 156.7 162.2 167.9 173.8 179.9 186.2 192.8 203.5 206.5 210.7 218.1 225.7 229.1 233.6 241.8 250.3 254.
08RE398 TDFM-136B Installation Instructions 3.2 APPENDIX B - POST INSTALLATION EMI TEST INSTRUCTIONS 3.2.1 PURPOSE The purpose of these tests is to identify any interference that the TDFM-136B may cause with existing aircraft systems. 3.2.2 TEST CONDITIONS The TDFM-136B transceiver should be installed and function tested. The antenna VSWR should be checked. A forward/reverse power check with an in-line wattmeter should show no more than 10% reflected power.
TDFM-136B Installation Instructions 3.2.4 08RE398 RESULTS If the installed system passes all of the applicable EMI tests, then no further action is required. If interference is observed, then the interference must be assessed against the appropriate standards of airworthiness for the system in question.
08RE398 TDFM-136B Installation Instructions 3.2.5 A. PROCEDURE Operate the TDFM-136B transmitter on the following frequency for at least 20 seconds. Observe the GPS for any degradation in satellite status or availability or flags. Frequencies GPS #1 Pass Fail GPS #2 Pass Fail 143.1800 MHz 143.1825 MHz 157.5000 MHz 157.5425 MHz NOTES: 3-4 Technisonic Industries Ltd.
TDFM-136B Installation Instructions B. 08RE398 Determine if the image frequency for the VHF Comm falls within the range of the TDFM-136B. If so, select a set of frequencies that will cause the TDFM-136B to be set as close as possible to the image frequency. Any one of the many possible sets will suffice. Record those values in the spaces provided in the following chart. Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds.
08RE398 C. TDFM-136B Installation Instructions Determine if the image frequency for the VOR/ILS Nav falls within the range of the TDFM136B. If so, select two sets of frequencies that will cause the TDFM-136B to be set a close as possible to the image frequency. Chose one set in the localizer frequency range. and one in the VOR frequency range. Record those values in the spaces provided in the following chart. Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds.
TDFM-136B Installation Instructions D. 08RE398 Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds. Observe the Glide Slope displays. Look for any movement of flags or needles on the Navigation display. Frequencies Glide slope #1 334.7 (108.1) TDFM-136B Results Pass 167.3500 MHz Frequencies Glide slope #2 334.7 (108.1) Fail TDFM-136B Results Pass Fail 167.3500 MHz NOTES: Technisonic Industries Ltd.
08RE398 TDFM-136B Installation Instructions For the following tests (E & F), select a frequency at the top, middle and bottom of the band of the TDFM-136B Transceiver. VHF Band (138 to 174 Mhz) Frequency No. 1 Frequency No. 2 Frequency No. 3 E. At a safe altitude engage the autopilot or stability augmentation system. Modulate the TDFM-136B on the above frequencies for at least 20 seconds. Observe any effect on the autopilot or stability augmentation system. Observations: F.
TDFM-136B Installation Instructions G. 08RE398 List the power plant, fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting. Assess the results.
08RE398 Step TDFM-136B Installation Instructions System Pass Fail Notes 20 21 22 23 24 25 26 27 NOTES: 3-10 Technisonic Industries Ltd.
