VHF/FM AIRBORNE TRANSCEIVER MODEL TAM-500 (P/N’s 971083-1,3 -VHF Guard Module) Installation and Operating Instructions Til Document No. 98RE243 Rev.
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.
Paragraph SECTION 1 WHO SECTION 2.10 2.11 2.12 2.13 2.14 SECTION 3 TABLE OF CONTENTS Title Page GENERAL DESCRIPTION Introduction... LLL eee 1-1 DESCRIPTION « «vt ttt ceca ea 1-1 Purpose of Equipment 1-1 Model Variation 1.2 Technical Summary . 1-2 OPERATING INSTRUCTIONS Operating FEATS «vv vv iis viv iv vv vee iia Operating Instructions . . . Programming Instructions . Scanning Function... oon . . Cea Priority and Selective Memory Channel Scanning. 2-6 Direct Frequency Entry Mode...
LIST OF TABLES Table No. Title Page 3-1 9-pin D and 15-Pin D Connections . . 3-3 LIST OF ILLUSTRATIONS Figure No. Title Page 2-1 Operator's Switches and Controls 00 uvula. 2-2 PC Up/Download Cable Wiring Diagram . 3-1 Outline Drawing 3-2 Wiring Connections 3-3 Enteral Enable/Disable Jumper Locations .
SECTION 1 GENERAL DESCRIPTION INTRODUCTION This publication provides operating and installation information on the TAM-500 Transceiver. manufactured by Technician Industries Limited. The unit offers an extended frequency range with delectable channel spacing and is intended for use (in the U.8.} only by government agencies or contractors thereto, who have obtained licensing for operation in the 138-150 MHz portion of the band.
TECHNICAL CHARACTERISTICS Specification GENERAL Model Designation: Frequency Range: Tuning Increments: Operating Mode: Chan net Spacing: Physical Dimensions {including heartsick: Weight: Mounting: Operating Temperature Range: Power Requirement: Voltage: Current: Frequency Selection: Guard Receiver: CSS squelch/encoder: DPL digital squelch/encoder: MDT encoder: Audio Outputs: Speaker Output: Back Lighting: Display Co lour: QPL is @ trademark of Motorola Corporation 1-1 Characteristic TAM-500 138 to 174 and 4
1.5 TECHNICAL CHARACTERISTICS {continued} VHF RECEIVER Sensitivity at 12 dB SIN AD Better than 0.36 pV Adjacent Chance! Selectivity -75 dB {28 kHz) -70 dB (12.5 kHz) Spurious Attenuation -90 dB Third Order Inter modulation -70 dB Image Attenuation -80 dB FM Acceptance + 6 KHz Hum and Noise Better then 45 dB Audio Distortion less than 5% Antenna Conducted Emission less than -70 dBm UHF RECEIVER Sensitivity at 12 dB SIN AD Better than 0.35 uV Adjacent Channel Selectivity -70 dB (25 kHz) -60 dB {12.
VHF and UHF TRANSMITTER RF Power Output Output Impedance Maximum Deviation {in narrow band mode) Spurious Attenuation Frequency Stability Microphone Circuit Side tone Output Harmonic Attenuation FM Hum And Noise Audio Input Audio Distortion 1 watt or 10 watts 50 ohms +5 kHz (26 kHz mode) + 2.5 mode} -90 dB below carrier level + 2.5 ppm Carbon or equivalent 0.5W (max) into 600Q -85 dB below carrier level KHz into 200 £2 input circuit for + 3.5KHz deviation, adjust.
21 SECTION 2 OPERATING INSTRUCTIONS FEATURES The equipment has several important operating features which provide maximum flexibility, performance and versatility. These features include: 1. 2. VHF and UHF bands that can be configured to be operated independently or as a single unit, The unit can be set up as a cross band repeater, linking a VHF and UHF frequency in both directions. 200 memory positions per band which can each be programmed with a transmit and receive frequency with 25 or 12.
2.2 2.3 OPERATING INSTRUCTIONS {See Figure 2-1) 1. Switch power on by turning the main 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. 2. Adjust the audio level by adjusting the VHF, UHF and GUARD volume knobs. 3. Pressing the squelch defeat button will open all receivers to confirm they work. 4. Read the display.
Press the FUN key. The display will show the function prompt. Press the PRIG key. The display will show the current receive frequency with a flashing curse on the first or second digit {The first digit is always a one <1> on the VHF band}. Type in the desired receive frequency. if you type in a frequency which is not a 2.5 kHz step, the nearest valid frequency will be automatically selected. The curse will return to the second digit.
25 2.6 2.7 Selective memory scanning allows the user to select which of the 200 memory channels are 10 be scanned or locked out when the scan function is invoked. To use this feature, follow the PROGRAMMING INSTRUCTIONS found in paragraph 2.3. Once the screen displays SCAN or LOCKOUT, use the or MIND keys to toggle to the desired condition and press ENTER. Entering the any or all of the numbers 1,2,3,4 or 5 will include that memory channel in any of the five scan lists.
2.8 2.9 2.10 2.11 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 FUN than LOCK. This will disable ali keyboard functions {except keyboard unlock) in the receive mode. The MDT 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".
Press the FUN key then the TONE key. The display will show "RX TONE:" and the current tone number, as well as the tone frequency in Hz. Use the M.UP and MIND keys to select the tone number you require. The following is a list of the available CSS tones: Buber Tone Number Tone Number Tone 01 67.0 26 162.2 51 177.3* Q2 7.8 27 167.9 52 183.6% 03 74.4 28 173.8 53 189.9% 04 77.0 29 179.9 54 198.6% 08 79.7 30 186.2 55 199.5% 08 82.5 31 192.8 56 206.5% a7 85.4 32 203.5 57 210.7% 08 88.5 33 33.0" 58 218.1* 09 81.
2.14 017* 0581 116 166 243 266% 346 431 466 612 721 023 053* 122* 162 244 271 351 432 503 624 731 025 0564 125 185 245 274* 356 445 B08 627 732 028 065 13 172 246* 306 364 446% 516 631 734 031 071 132 174 251 31 365 452* 523* 632 743 032 072 134 205 252% 315 371 454% 526 654 754 036* 073 143 212* 255% 325* 411 4556" 532 662 043 074 145* 223 261 331 412 462% 546 664 047 114 152 225% 263 332% 413 484 565 703 050 115 155 226 265 343 423 466 606 712 * indicates GE Digital Coded Squelch (DCS) Code 9.
2. Change to the \TIL directory and type: PCDLxxx and . The main menu will be displayed. Listing memory channels: The first channel listed (in blue on color monitors} is the memory channel that will appear on the display of the TAM-500 unit when it is turned on. The next two channels listed are guard 1 and guard 2. (in red on color monitors) Only TX CSS tones or TX DPL codes are listed for the guards since the TAM-500 unit has a CSS toneless code decoder for the main receiver only.
Uploading From the TAM-500: Uploading from the radio is started by selecting ‘U’ in the main menu, Fellow on screen instructions. The upload should take about 10 seconds depending on the speed of the PC. The previous data base will be replaced by the contents of the radio. If the previous database is still needed, the file ‘DATABASE’ should be copied to another file name in DOS before the upload is attempted. Files: The file containing the memory channel list is named ‘DATABASE" in the \TIL directory.
: | Down Programming: PIN Wiring Diagram 15 PIN ‘0’ FEMALE 25 PIN 'D° MALE 5 YELLOW DATA GREEN CLOCK BLUE STROBE pannier TQ 13 WHITE ACK 10 | pint or TM-1388 persona L 8 GREY GROUND 20 S| COMPUTER 14 RED + 5 BLACK — 1H4004 + TO POWER SUPPLY 12 T0 30vDC 9440328 FIGURE 2-2 TAM-500 Transceiver PC Up/Download Cable wiring diagram 2-11
SECTION 3 INSTALLATION INSTRUCTIONS GENERAL This section contains information and instructions for the correct installation of the TFM500, VHF/FM Transceiver. Make certain that the correct frequencies are reprogrammed in accordance with the equipment user's valid FCC operator's license, prior to installation. 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.
3.
3.7 WIRING INSTRUCTIONS Figure 3-2 shows all required connections and recommended wire sizes for the TAM-500 Transceiver. 3.7.1 Main Power +28VDC The main power +28VDC is connected to pins 7 and 14 of the transceiver. Both pins should be connected. 3.7.2 Main Ground Ground connections for the transceiver are made on pins 8 and 15. Both pins should be connected. 3.7.
som muses fb a pny 0 OM 400 OUT SOW, CROWD 1 FTN Baw ws 2 WC POR 3 Gy 7 vor Pow R " & Z 120 ANC a VERY ‘ = a FLA BERRY DOW 5 ey moms A | 3 eee AN © 500 rk A000 QUT SOUL (RAND ma POR FORD PORE GORE FORSYTHIAS OR EQUIVALENT. wma TOG BASIE, WAIN ALL WARE IAW UNLESS OTHERWISE SPECIFIED. 2) ALL CABLE IAW MESS OTHERWISE SPECIFIED. 3) COAXIAL CABLE IA¥ UNLESS OTHERWISE SPECIFIED. DO NOT USE COAX WMH PYC INSULATION.
3.74 3.7.5 3.7.6 3.7.7 3.7.8 3.7.9 3.8 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, verity the required panel lighting voltage (28 VDC or VAC) on the transceiver configuration control label. Audio Outputs {600 ohms and 4 Ohms) There are two audio outputs available (1 & 2).
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 ~ ENTRY DISABLE JUMPER —GUARD ENTRY DISABLE JUMPER © = hoe wm.
3.9 3.10 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 re-adjustment is required, perform as follows: 1. 2. Select the band that you wish to adjust on the band select switch. Connect an RF through-line watt meter to the appropriate antenna connector. Set the operating frequency to 156.000 MHz for VHF or 457.
@ Que southern Ow save mee wox g HE « Soto coo FIGURE 3-4 External Adjustment Access Holes 3-8
SQUELCH ADJUSTMENT The squelch on both the main and guard receivers is factory set to open at approximately 1.0 micro volt. This adjustment can be made or altered to suit local conditions as follows: 1. Set the receiver to 157,000 MHz for VHF or 457.000 MHz for UHF. Connect a signal generator to the the antenna input of the desired band. Set the signal generator to produce a +3 kHz deviation with a 1 kHz tone on 167.000 MHz or 457.000 MHz. Increase the signal generator RF vela! from 0.
Adjust the wide band deviation limit centimeter, R30 on the UHF Rx/Tx module {see Figure 3-6) to produce a + 4.25 kHz deviation. Select narrow band mode on the UHF band and adjust the narrow band deviation limit centimeter, R76 on the UHF Rx/Tx module to produce a + 2.15 kHz deviation. 8. Verify that the deviation does not exceed +5 kHz for wide band and +2.5 kHz for narrow band on 403.000 MHz, and 512.000 MHz. Re-adjust R30 or R76 as required, if the deviation exceeds +5 kHz or + 2.5 kHz, respectively. 9.
jie WET bir whe 22 TARE WIDE BAND 2 ie ‘ DEVIATION ADJUSTMENT 2 [JE poet clan sss sneer-[ NARROW BAND Tu LL DEVIATION ’ WET ADJUSTMENT tag = |e UHF Receiver/Transmitter PCB Module Notes: R11 is for 5.0 kHz (wide band) Deviation Adjustment R102 is for 2.