VHF/FM AIRBORNE TRANSCEIVER MODEL TFM-138 (s/n’s 1540 and up with F10-B Software) Installation and Operating Instructions Til Document No. 98RE229 Rev. A Issue 1 SEPTEMBER 2002 Technisonic Industries Limited 240 Traders Boulevard, Mississauga, Ontario L4Z 1W7 Tel:(905)890-2113 Fax:(905)890-5338 web site: www.til.
CAUTION This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive gloves when handling printed circuit boards. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Summary of DO-160C Environmental Testing for Technisonic Model TFM-138, VHF Transceiver Conditions Section Description of Conducted Tests Temperature and Altitude 4 Equipment tested to categories B2 and D1. Vibration 8 Equipment is tested without shock mounts to categories B, M and N. Magnetic Effect 15 Equipment is class Z. Power Input 16 Equipment tested to category B. Voltage Spike 17 Equipment tested to category B. RF Emission 21 Equipment tested to category Z.
Paragraph SECTION 1 1.1 1.2 1.3 1.4 1.5 SECTION 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 SECTION 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.7.1 3.7.2 3.7.3 3.7.4 3.7.5 3.7.6 3.7.7 3.7.8 3.7.9 3.8 3.9 3.10 3.11 3.12 3.13 3.14 TABLE OF CONTENTS Title Page GENERAL DESCRIPTION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION INSTRUCTIONS - APPENDIX Post Installation EMI Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 LIST OF TABLES Table No. 3-1 Title Page 15-Pin D Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 LIST OF ILLUSTRATIONS Figure No. 2-1 2-2 3-1 3-2 3-3 3-4 3-5 Title Page Operator's Switches and Controls - TFM-138 . . . . . . . . . . . . . . . . . . . . . . . . . .
TFM-138 SOFTWARE CHANGE NOTE This document covers operation of the Technisonic TFM-138, s/n 1540 and onwards which have been delivered from the factory with version F10-B software capable of wide/narrow band operation. For TFM-138’s with s/n 1539 or less, TiL Document 95RE177 should be referred to. This document does not cover the operation of older version TFM-138’s with s/n 1539 or less.
SECTION 1 GENERAL DESCRIPTION 1.1 INTRODUCTION This publication provides operating and installation information on the TFM-138 (with version F10-B software), Transceiver manufactured by Technisonic Industries Ltd. The version F10-B software is factory installed in TFM-138's with s/n F1540 and onwards. The unit offers an extended frequency range with selectable channel spacing and is intended for use (in the U.S.
1.5 TECHNICAL CHARACTERISTICS Characteristic Specification GENERAL Model Designation: TFM-138, s/n 1540 and up Frequency Range: 138.000 to 174.000 MHz Tuning Increments: 2.5 kHz Operating Mode: F3E simplex or semi-duplex Channel Spacing: 25 or 12.5 kHz Physical Dimensions (including heatsink): Approx. 8.0" X 3.0" X 5.75" Weight: Approx. 3.1 Lbs (1.4 Kg) Mounting: Panel Mount via Dzus fastners Operating Temperature Range: -45EC to +70EC Power Requirement: Voltage: Current: 28.
1.5 TECHNICAL CHARACTERISTICS (continued) MAIN RECEIVER Sensitivity at 12 dB SINAD Better than 0.35 µV Adjacent Channel Selectivity -70 dB (25 or 12.
SECTION 2 OPERATING INSTRUCTIONS 2.1 OPERATING FEATURES The equipment has several important operating features which provide maximum flexibility, performance and versatility. These features are outlined below. New features provided in TFM138 units of s/n 1540 and up with F10-B software are indicated by an “*”. 2.2 1. 100 memory positions* which can each be programmed with a transmit and receive frequency with 25 or 12.5 kHz channel spacing*, Tx/Rx CTCSS tones and a 9-character alphanumeric title. 2.
FIGURE 2-1 Operator's Switches and Controls - TFM-138, (F10-B software) 2-2
5. Only TX CTCSS tones may be programmed for the guard receiver. At the beginning of each line, an LED indicates open squelch. 6. Set the MN/GD switch to main or guard transmit frequency. 7. Set the G1/G2 switch to the desired guard channel. 8. Set the HI/LO switch to the desired RF output power. 9. Select the desired memory by using the M.UP and M.DN buttons, or the RCL button and a three digit number followed by ENTER. 10.
7. The alpha-numeric title is now displayed. Use the M.UP and M.DN keys to scroll through the alphabet, numbers and symbols. When the desired character is displayed,press ENTER to advance to the next character. 8. Keep repeating step six until the last space is set. The display will show SCAN or LOCKOUT to enable this memory position as part of the scan list or lock it out of the scan list. Use the M.UP and M.DN keys to toggle between these functions (for details see paragraph 2.5).
2.5 PRIORITY AND SELECTIVE MEMORY CHANNEL SCANNING The priority memory channel is always memory position number 1. The priority memory channel is scanned every other step (ie. 121314151...) to ensure that no incoming messages are missed. The priority channel can be locked out, which will result in the normal scanning of the other memory positions. Selective memory scanning allows the user to select which of the 100 memory channels are to be scanned or locked out when the scan function is invoked.
2.10 2.11 LED DISPLAY VARIABLE DIMMING MODE 1. With the transceiver in normal operating mode press the UP or DN keys to increase or decrease the intensity of the LED display. 2. Once maximum intensity of the display is acheived, the UP key no longer functions. Conversely once minimum intensity is reached, the DN key ceases to function.
2.13 PROGRAMMING CTCSS TONES/DPL CODES - continued 06 07 08 09 10 82.5 85.4 88.5 91.5 94.8 31 32 33 34 35 192.8 203.5 33.0* 35.4* 36.6* 56 57 58 59 60 206.5* 210.7* 218.1* 225.7* 229.1* 11 12 13 14 15 97.4 100.0 103.5 107.2 110.9 36 37 38 39 40 37.9* 39.6* 44.4* 47.5* 49.2* 61 233.6* 62 241.8* 63 250.3* 64 No Tone (carrier squelch only) 16 17 18 19 20 114.8 118.8 123.0 127.3 131.8 41 42 43 44 45 51.2* 53.0* 54.9* 56.8* 58.8* (The tones marked with * are nonstandard tones).
processors or some early Pentium type processors of 200 MHz or less running MS DOS seem to work the best. Please check the “Programmer downloads” link on our web site www.til.ca for further information regarding PC programming information for users of single band transceivers like the TFM-138. Please note that the TFM-138 and not the TFM-138B must be selected in the Multi-TDP software package. See paragraph 2.14.4, item 8 below.
7. Pull down the Com Port menu and select the com port that you have connected the PIB100. 8. The software is now ready to use. To get a full instruction manual, pull down the Help menu and select Documentation in PDF format. 2.14.5 Helpful Hints: When uploading or downloading, a message box will appear asking you to press FUNC and then 7 on the radio. Press these keys before clicking the OK button in the message box. 2.14.6 DOS Program Requirements: 1.
4. Follow the menus to edit channels, print channel list, up or download as desired. 5. The data file is continuously updated as each change is made, so you don’t have to save the file at any time. To have multiple data files, you will have to copy the data file to another name and then copy it back when needed. There always has to be a data file called “DATA" or the program will not work. 2.14.
TFM-138 Upload/Download Programming Cable For DOS Program P/N 943165-4 - Wiring Diagram FIGURE 2-2 TFM-138 Transceiver PC Download Cable - wiring diagram (for DOS program only) 2-11
SECTION 3 INSTALLATION INSTRUCTIONS 3.1 GENERAL This section contains information and instructions for the correct installation of the TFM-138, VHF/FM Transceiver. Make certain that the correct frequencies are preprogrammed in accordance with the equipment user's valid FCC operator's license, prior to installation. 3.2 EQUIPMENT PACKING LOG Unpack the equipment and check for any damage that may have occurred during transit.
FIGURE 3-1 Outline Drawing for Model TFM-138 Transceiver 3-2
3.6INSTALLATION - PIN LOCATIONS AND CONNECTIONS (continued) TFM-138 Transceiver 15-Pin D Connections Pin # Description 1 600 Ohm Output 2 Data Output 3 Panel Lighting (28VDC or 5VAC) 4 Memory UP/PC Download Input 5 Memory Down/PC Download Input 6 Mic Signal Input 7 Main Power +28VDC 8 Main Ground 9 4 ohm Speaker Output 10 4 ohm/600 ohm Output Ground 11 Data Input 12 PC Download Input 13 PTT (Ground Keying) 14 Main Power +28VDC 15 Main Ground TABLE 3-1 3.
Figure 3-2 Wiring Connections for TFM-138 Transceiver 3-4
3.7.4 Front Panel Back Lighting Front panel back lighting connection should be made on pin 3 of the transceiver. The opposite end of this lead should be connected to the panel lighting system of the aircraft. Before connecting, verify the required panel lighting voltage (28 VDC or 5VAC) on the transceiver configuration control label. 3.7.5 Audio Outputs (600 ohms and 4 0hms) The audio output from pin 9 can be used to drive a 4 ohm speaker up to 2.5 watts. Audio output from pin 1 is 600 ohms, 0.
Microprocessor Control Unit (MCU) PCB Module Notes: R23 is High Power Adjustment R24 is Low Power Adjustment J15 Jumper between pins 3 and 4 for Entry Enable Remove for Entry Disable FIGURE 3-3 Internal Enable/Disable Jumper and Transmit High/Low Power Adjust Locations 3-6
3.9 TRANSMITTER POWER ADJUSTMENTS The transmitter power is adjusted to a maximum of 10 watts in high power mode and 1 watt in low power mode over the transceiver operating bandwidth at the factory. If transmitter RFpower readjustment is required, perform as follows: 3.10 3.11 1. Remove bottom cover as described in the previous paragraph (3.8).
FIGURE 3-4 Microphone and Sidetone Level, Main and Guard Squelch Adjustment Access Holes 3-8
3.12 MAIN AND GUARD SQUELCH ADJUSTMENT The squelch on both the main and guard receivers is factory set to open at approximately 1.0 microvolt. This adjustment can be made or altered to suit local conditions as follows: 3.13 3.14 1. Set the main receiver of the transceiver to 156.000 MHz. Connect a signal generator to the antenna input of the transceiver. 2. Set the signal generator to produce a ±3 kHz deviation with a 1 kHz tone on 156.000 MHz. Set the signal generator RF level to 1.0 uV .
Main Receiver/Transmitter PCB Module Notes: R30 is for 5.0 kHz (wideband) Deviation Adjustment R76 is for 2.
APPENDIX TO “INSTALLATION INSTRUCTIONS” POST INSTALLATION EMI TEST PURPOSE The purpose of this test is to identify any interference that the TFM-138, TFM-138A or TFM-138B may cause with existing aircraft systems. For simplicity all TFM-138 model variations will be referred as TFM-138 series transceivers in this document. TEST CONDITIONS The TFM-138 series transceiver should be installed and function tested. The antenna VSWR should be checked.
PROCEDURE A. Operate the TFM-138 series transmitter on the following frequencies for at least 20 seconds. Observe the GPS for any degradation in satellite status or availability or flags. FREQUENCIES TFM 138 GPS #1 PASS GPS #2 FAIL 143.180 MHZ 143.1825 MHZ 157.5000 MHZ 157.
B. Determine if the image frequency for the VHF Comm falls within the range of the TFM-138 series unit. If so, select a set of frequencies that will cause the TFM-138 series unit 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 TFM-138 series transmitter on the following frequencies for at least 20 seconds. Listen for any noise or detected audio signals on the VHF comm.
C. Determine if the image frequency for the VOR/ILS Nav falls within the range of the TFM-138 series unit. If so, select a two sets of frequencies that will cause the TFM-138 series transceiver to be set as 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 TFM-138 series transmitter on the following frequencies for at least 20 seconds.
D. Modulate the TFM-138 series transmitter on the following frequencies for at least 20 seconds. Look for any moment of flags or needles on the navigation display. FREQUENCIES G/S #1 334.7 (108.1) RESULTS TFM-138 series 334.7 (108.1) FAIL 167.3500 FREQUENCIES G/S #1 PASS RESULTS TFM-138 series 167.
NOTE: For the following tests, select a frequency at the top, middle and bottom of the range of the TFM 138 series transceiver. Frequency #1 ______________ Frequency #2 ______________ Frequency #3 ______________ E. At a safe altitude engage the autopilot or stability augmentation system. Modulate the TFM138 series transmitter on the above frequencies for at least 20 seconds. Observe any effect on the autopilot or stability augmentation system. Observations: F.
G. List the power plant, fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting. Assess the results.
STEP SYSTEM 11 Fuel % 12 Ng 13 TOT 14 Torque % 15 Annunciators 16 Digital Clock PASS A-8 FAIL NOTES
STEP SYSTEM PASS A-9 FAIL NOTES
STEP SYSTEM PASS A-10 FAIL NOTES
STEP SYSTEM PASS NOTES: A-11 FAIL NOTES
