Tactical Electronics T200B TELEMETRY TRANSCEIVER User Manual TRANSCEIVER

Tactical Electronics Corporation TELEMETRY TRANSCEIVER TRANSCEIVER

USER MANUAL

T200TRANSCEIVEROPERATING INSTRUCTIONSThese operating instructions are intended to provide the user with sufficient information to installand operate the unit correctly. The Tactical Electronics model T200 is a single channel synthesized transceiver which operates in the216 to 219MHz frequency band. The unit is intended to fulfil the numerous OEM applications byvirtue of its highly reliable design, miniature size and quality manufacture. INSTALLATIONThe T200 is intended to fit easily and with minimum space requirements into the user's ownequipment housing. The complete module is housed within a tin-plated enclosure and is securedby means of four 10mm metal screws which locate in the four corners through the lowerscreening cover. DO NOT overtighten these screws during assembly.
CONNECTIONThe radio antenna connects by means of a BNC miniature coaxial connector. All otherconnections to the T200 transceiver are made using a standard 9-way D type connector asdetailed in the table below. PIN NAME FUNCTION REMARKS1MOD I/P Data modulation input To transmitter, TTL/CMOS compatible2DATA O/P Receiver Output 5V CMOS levels, high ( +5V) when nosignal present3bTbXbEtransmit enable HIGH >2.5V = receiveLOW <0.8V = transmitter enabled40V 0 volts common DC and signal ground5+ Vin positive supply +10 to +14 V DC6SQF Squelch flag output HIGH (+5V, 10kS pull-up) = Signal presentLOW (<0.8V) = Signal not present7CS channel select Serial channel select input (RS232compatible)8RSSI Received Signal StrengthIndicator +1 to +3V DC nominal, 50dB range90V 0 volts common DC and signal groundPROGRAMMINGThe software supplied with the T200 transmitter is the single channel TPRG.exe program. Thesoftware can be run on a PC with the serial port connected to pin 7 of the transmitter via asuitable adaptor as shown in Figure 1. The unit may be programmed in-situ provided that pin 7is available. There is no feed-back facility with this circuit, and for this reason, the TPRG softwarerepeats the programming three times to eliminate error. This version of software is programmed by a series of 8 byte data packets at 1200 baud. Eachpacket includes a 16 bit sync code and an 11 bit checksum to eliminate the possibility ofspurious programming.
Figure 1 Programming adaptorRUNNING THE SOFTWAREPlease note that mouse operation is not supported with this program1. Connect TX00 to a suitable supply and to the PC using the programming adaptor.2. Insert the TPRG disk into drive A and type:A:TPRG <return>3. The user is then prompted to enter the serial port number of his PC which is used tocommunicate with the TX00 transmitter. Enter 1 or 2.After the software has successfully loaded the screen displays the following prompts:Enter frequency in MHz?The user can then enter the required operating frequency and then ‘0' to quit.
RANGE INFORMATIONThe following table gives an indication of the typical ranges to be expected between a transmitterand receiver that have simple end-fed dipole antennas.The following assumptions have been made in the calculations:line-of-sight between antennas0dB gain for the transmitter and receiver antennas0dB loss for connectors and cables between the antenna and the radio connector20dB fade and environmental margin-100dBm received signal strength, allowing for digital and analog signalsRange versus TX powerFrequency (MHz) Power (mW) Power (dBm) Range (km)173 1mW 01.4173 10mW 10 4.4173 100mW 20 13.8173 500mW 27 30.9TECHNICAL SPECIFICATIONFrequency of operation :216 to 219MHz (other frequency bands available)Channel spacing :12.5kHz (25kHz available as an option)Number of RF channels :One, set by PIC micro controller (contact Sales Office forserial channel select option)RF output power :2W nominal at 12V DCFrequency stability :±2.5ppm over temperature range (12.5kHz version)Supply voltage :+12V DC nominal (+10 to +14 volts possible) Supply currentTransmit :500mA typical at 2WReceive :50mA typicalSize :119 x 57 x 21mm (l x w x h) including connectorsWeight :120 gmsTemperature (operating) :-30 to +55 °C standardTemperature (storage) :-30 to +70 °C

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