TFM-550 VHF High/VHF Low/UHF MULTIBAND FM AIRBORNE TRANSCEIVER Installation and Operating Instructions TiL Document No. 99RE262 Rev. A Issue 8 AUGUST 2010 Technisonic Industries Limited 240 Traders Boulevard, Mississauga, Ontario L4Z 1W7 Tel: (905) 890-2113 Fax: (905) 890-5338 www.til.ca Copyright 2010 by Technisonic Industries Limited. All rights reserved.
REVISION HISTORY [ 99RE262 ] REV 99RE262 Rev A Issue 4 99RE262 Rev A Issue 5 SECTION - PAGE - DESCRIPTION CR 08194 Overall No change to fit, form or function. Grammar and spelling check was done, corrected typos, etc. as needed or found. A-Page: Added NOTICE regarding new address change that may appear different throughout this manual. Document was updated from one program format to another. See NOTE below.
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NOTES ESD CAUTION This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive gloves when handling printed circuit boards. FCC COMPLIANCE INFORMATION 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.
CERTIFICATION SUMMARY Summary of DO-160C Environmental Testing for Technisonic Model TFM-550, Low-band VHF, Highband VHF and UHF Transceiver: Conditions Section Description of Conducted Tests Temperature and Altitude 4.0 Equipment tested to categories B2 and D1. Vibration 8.0 Magnetic Effect 15.0 Equipment is tested without shock mounts to categories B, M and N. Equipment is class A. Power Input 16.0 Equipment tested to category B. Voltage Spike 17.0 Equipment tested to category B.
TECHNISONIC INDUSTRIES LIMITED www.til.ca TABLE OF CONTENTS SECTION TITLE PAGE SECTION 1 GENERAL DESCRIPTION 1.1 INTRODUCTION ...................................................................................................................... 1.2 DESCRIPTION ......................................................................................................................... 1.3 PURPOSE OF EQUIPMENT ...................................................................................................
APPENDIX Post Install EMI Tests ............................................................................................................... A-1 LIST OF FIGURES FIGURE TITLE PAGE 2-1 2-2 TFM-550 OPERATOR'S SWITCHES AND CONTROLS ......................................................... 2-2 TFM-550 TRANSCEIVER PC UP/DOWNLOAD CABLE - WIRING DIAGRAM ....................... 2-9 3 3-1A 3-1B 3-2 3-3 3-4 3-5 3-6 3-7 TRANSCEIVER MOUNTED VIEW OF A 15-PIN FEMALE & 9-PIN MALE CONNECTOR ....
TECHNISONIC INDUSTRIES LIMITED www.til.ca SECTION 1 - GENERAL DESCRIPTION 1.1 INTRODUCTION This publication provides operating and installation information on the TFM-550 Transceiver manufactured by Technisonic Industries Limited. The unit offers an extended frequency range with selectable channel spacing and is intended for use (in the U.S.) only by government agencies or contractors thereto, who have obtained licensing for operation in the 138-150 MHz portion of the VHF band.
TECHNISONIC INDUSTRIES LIMITED www.til.ca TFM-550, P/N 991095-2 TFM-550, P/N 991095-2 (5V) RED display and 28 Volt back lighting. RED display and 5 Volt back lighting. Both P/N's 991095-1 and 991095-2 are always provided with 28 volt back lighting unless a specific request is made for 5 Volt AC operation.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 1.5 TECHNICAL CHARACTERISTICS Specification Characteristic GENERAL Model Designation: TFM-550 Tuning Increments: 30 to 50, 138 to 174 and 403 to 512 MHz 2.5 kHz Operating Mode: F3E simplex or semi-duplex Channel Spacing: 25 or 12.5 kHz Physical Dimensions: Approx. (L) 8.0" x (W) 5.75" x (H) 3.75" Weight: Approx. 5.1 Lbs (2.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 1.5 TECHNICAL CHARACTERISTICS (continued) Specification Characteristic VHF RECEIVER Sensitivity at 12 dB SINAD Better than 0.35 µV Adjacent Channel Selectivity -75 dB (25 kHz) -70 dB (12.
TECHNISONIC INDUSTRIES LIMITED www.til.ca VHF, VHF LOW and UHF TRANSMITTER RF Power Output 1-Watt or 10-Watts Output Impedance 50 Maximum Deviation (In narrowband mode) ±5 kHz (25 kHz mode) ±2.5 kHz (12.5kHz mode) Spurious Attenuation -90 dB below carrier level Frequency Stability ±2.5 ppm (-30ºC to +55ºC) ±2.6 ppm (-45ºC to -30ºC, +60º to +70ºC) Carbon or equivalent Microphone Circuit 0.
TECHNISONIC INDUSTRIES LIMITED www.til.ca SECTION 2 – OPERATING INSTRUCTIONS 2.1 FEATURES The equipment has several important operating features which provide maximum flexibility, performance and versatility. These features include: 1. The UHF band can be configured to be operated independently of the VHF High and VHF Low bands or all three bands can operate as a single unit. 2. The unit can be set up as a cross band repeater, linking a VHF High and UHF frequency in both directions.
TECHNISONIC INDUSTRIES LIMITED www.til.ca f) REMOTE BS - Only used when an RC-550 slave control head is attached. Setting this feature on will give the transmit selection to the Band Select switch on the RC-550 rather than on the radio. This is useful when the operator at the RC-550 is using the VHF high and low bands. Regardless of whether this feature is set to on or off, the fourth squelch light will light on both units when both BS switches are set to the same position.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 2.2 OPERATING INSTRUCTIONS (See Figure 2-1) 1. Switch power on by turning the VHF volume clockwise. Depending how the radio is configured, either the last programmed or last displayed frequencies will appear on the screen. The transceiver is now in normal operating mode. NOTE: VHF high band will be referred to as “VHF” and VHF low band as “VLO” in these instructions. 2. Adjust the audio level by adjusting the VHF, UHF and VLO volume knobs. 3.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 2.3 PROGRAMMING INSTRUCTIONS To program one of the 200 memory channels in one of the bands: 1. Select the desired band on the band select (VHF/UHF/VLO) switch. This is required before any of the programming modes or functions. 2. Press the FUNC key. The display will show the function prompt. 3. Press the PROG key. The display will show the current receive frequency with a flashing curser on the first or second digit.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 2.5 SCANNING FUNCTION (5 second talkback delay) Select the band you wish to scan with the band switch. (You can not scan VHF Low band). To start scanning of the memory channels, press FUNC then SCAN and then the number (1,2,3,4,5) of the desired scan list.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 2.8 KEYBOARD LOCKOUT FUNCTION The keyboard can be locked out so that accidental pressing of keys does not change frequency, etc., unknowingly to the operator. To lock the keyboard, press FUNC then LOCK. This will disable all keyboard functions (except keyboard unlock) in the receive mode. The DTMF function during transmit will not be affected. To unlock the keyboard, press and hold the LOCK key for two seconds until the display indicates "UNLOCK". 2.
TECHNISONIC INDUSTRIES LIMITED www.til.ca Number Tone Number Tone Number Tone 01 02 03 04 05 67.0 71.9 74.4 77.0 79.7 26 27 28 29 30 162.2 167.9 173.8 179.9 186.2 51 52 53 54 55 177.3* 183.5* 189.9* 196.6* 199.5* 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 62 63 64 16 17 18 19 20 114.8 118.8 123.0 127.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 2.13 CROSS BAND REPEAT The TFM-550 can act as a cross band repeater between VHF (high band only) and UHF. To enter repeat mode, press FUNC and then 9. The status line will show REPEAT instead of the band switch selection. When a signal is received on one of the bands, the audio is routed to the transmitter of the other band. This process can only go in one direction at a time.
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TECHNISONIC INDUSTRIES LIMITED www.til.ca SECTION 3 – INSTALLATION INSTRUCTIONS 3.1 GENERAL This section contains information and instructions for the correct installation of the TFM-550, VHF/FM 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. 3.2 EQUIPMENT PACKING LOG Unpack the equipment and check for any damage that may have occurred during transit.
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TECHNISONIC INDUSTRIES LIMITED www.til.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 3.
TECHNISONIC INDUSTRIES LIMITED www.til.ca Figure 3-2 Wiring connections for the TFM-550 Transceiver.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 3.7 WIRING INSTRUCTIONS Figure 3-2 shows all required connections and recommended wire sizes for the TFM-550 Transceiver. If problems with the correct operation of the UHF/FM Transmit function of a TFM550 are encountered on a specific airframe, a DC power line filter may be required. Typical problems encountered are that UHF/FM will not transmit on high power or will not open a repeater when using a CTCSS transmit tone.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 3.7.9 Data Input Data communications equipment requiring direct access to the modulator and discriminator can be connected via pins 2 and 11. Data cannot be transmitted in CANADA unless equipment is approved for use with the TFM-550 by the communications regulatory authority. 3.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 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 RF power readjustment is required, perform as follows: 1. Select the band that you wish to adjust on the band select switch. 2. Connect an RF through-line watt meter to the appropriate antenna connector. Set the operating frequency to 156.
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TECHNISONIC INDUSTRIES LIMITED www.til.ca 3.12 TRANSMITTER DEVIATION ADJUSTMENT VHF: 1. Remove the bottom cover of the transceiver. 2. Set the VHF operating frequency to 157.000 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. 3. Key the transmitter and input a +10 dBm (2.5 VRMS), 2.5 kHz audio signal into microphone input 1. 4.
TECHNISONIC INDUSTRIES LIMITED www.til.ca VHF Receiver/Transmitter PCB Module Notes: R30 is for 25 kHz (wideband) Deviation Adjustment R76 is for 12.
TECHNISONIC INDUSTRIES LIMITED www.til.ca UHF Receiver/Transmitter PCB Module Notes: R11 is for 25 kHz (wideband) Deviation Adjustment R102 is for 12.
TECHNISONIC INDUSTRIES LIMITED www.til.ca VHF LOW Band Receiver/Transmitter PCB Module Notes: R21 is for 25 kHz (wideband) Deviation Adjustment R16 is for 12.
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TECHNISONIC INDUSTRIES LIMITED www.til.ca APPENDIX – TO “INSTALLATION INSTRUCTIONS” POST INSTALLATION EMI TEST PURPOSE The purpose of this test is to identify any interference that the TFM-550 may cause with existing aircraft systems. As the TFM-550 installation may include the ATC-550 antenna tuner controller, this test, as required, will also identify any interference caused by the ATC-550. TEST CONDITIONS The TFM-550 transceiver and any accessories (e.g.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 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. For example, it is permissible for a VFR certified GPS to lose navigation capability while the TFM-550 unit is transmitting, providing that it recovers properly and promptly.
TECHNISONIC INDUSTRIES LIMITED www.til.ca B. Determine if the image frequency for the VHF Comm falls within the range of the TFM-550. If so, select a set of frequencies that will cause the TFM-550 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-550 transmitter on the following frequencies for at least 20 seconds.
TECHNISONIC INDUSTRIES LIMITED www.til.ca FREQUENCIES VHF #2 TFM-550 118 34 118 45 135.975 138 121.15 157.5 131.25 157.
TECHNISONIC INDUSTRIES LIMITED www.til.ca C. Determine if the image frequency for the VOR/ILS Nav falls within the range of the TFM-550. If so, select two sets of frequencies that will cause the TFM-550 to be set as close as possible to the image frequency. Choose 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.
TECHNISONIC INDUSTRIES LIMITED www.til.ca FREQUENCIES VOR/ILS #2 TFM-550 108 36 108 162 108.1 36.0325 108.1 162.
TECHNISONIC INDUSTRIES LIMITED www.til.ca D. The following procedure checks for second harmonic interference to the glide slope receiver from the TFM-550. All transceivers produce harmonics (multiples of the wanted frequency) and while the TFM-550 far exceeds FCC requirements, interference can still be experienced depending upon antenna position and separation.
TECHNISONIC INDUSTRIES LIMITED www.til.ca 334.7 (108.1) 33.47 334.7 (108.1) 167.35 FREQUENCIES VOR/ILS #2 RESULTS TFM-550 334.7 (108.1) 33.47 334.7 (108.1) 167.35 PASS FAIL NOTES: E. Operate the TFM-550 transmitter on the following frequency for at least 20 seconds. Observe the Transponder for any spurious replies or loss of reply to test set.
TECHNISONIC INDUSTRIES LIMITED www.til.ca F. Modulate the TFM-550 transmitter on the following frequencies for at least 20 seconds. Observe the DME displays. Look for loss of distance information on the display. FREQUENCIES DME 1 RESULTS TFM-550 978 (108.0) 489 1020 (112.1) 510 PASS FREQUENCIES DME2 RESULTS TFM-550 978 (108.0) 489 1020 (112.
TECHNISONIC INDUSTRIES LIMITED www.til.ca G. * While turning the ATC-550 on and off as often as required, listen for any noise or detected audio signals on the HF receiver audio.
TECHNISONIC INDUSTRIES LIMITED www.til.ca NOTE: For the following tests, select a frequency at the top, middle and bottom of each band of the TFM-550 transceiver. 30 to 50 MHz Band 138 to 174 MHz Band 403 to 512 MHz Band Frequency #1 H. Frequency #2 489 Frequency #3 510 At a safe altitude engage the autopilot or stability augmentation system. Modulate the TFM-550 transmitter on the above frequencies for at least 20 seconds. Observe any effect on the autopilot or stability augmentation system.
TECHNISONIC INDUSTRIES LIMITED www.til.ca J. List the power plant, fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting or switching ATC-550 antenna tuner controller on and off. Assess the results.
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Technisonic Industries Limited 240 Traders Blvd., Mississauga, ON Canada L4Z 1W7 Tel: (905) 890-2113 Fax: (905) 890-5338 IMPORTANT WARRANTY All communication equipment manufactured by Technisonic Industries Limited is warranted to be free of defects in Material or Workmanship under normal use for a period of one year from Date of Purchase by the end user.
