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| Synthesised Radio Modules TX8000/RX8000 Features * * * * No operating licence required. 32 Selectable RF Channels. Range 10-20km line of sight 1-3km in buildings RF frequency range: 400.00 MHz to 490.00 MHz 860.00 MHz to 930.00 MHz In 1.3MHz bands RF power output 5mW to 500mW Data rates: up to 10Kpbs TX8000 transmitter power 7.5 at 270mA RX8000 receiver power 5V at 35mA Approvals: ETSI 300-220, MPT1329 Size 36mm by 51mm by 14.5mm * * * * * * Description The synthesised TX8000 Transmitter and RX8000 Receiver can be set to one of 32 switch selectable RF frequencies. The modules can transmit data at 10Kbps for a distance of up to 20km line of sight and 1-3km in buildings. The radios are ideal for general telemetry applications. The TX8000 will transmit analogue data such as FSK, FFSK, GMSK and PWM from its analogue input or accept direct TTL digital data from its digital input. The RX8000 will receive analogue and digital data and present it to its analogue and digital outputs in the same format as it was transmitted. The units conform to ETSI 300-220 and ETSI 300-683. Typical Operation DS8000-1 Dec 02 (c)2002 REG No 277 4001, England. Page 1 Synthesised Radio Modules Specification ABSOLUTE MAXIMUM RATINGS Storage Temperature............................................... -30 to +85 Celsius Operating Temperature ........................................... -25 to +55 Celsius Dimensions Length = 36mm Width = 51mm Height = 14.5mm MIN 458.500 400.000 860.000 12.5 3.0 TYPICAL TX8000/RX8000 ELECTRICAL CHARACTERISTICS Frequency Range Channels Channel Separation Start up Time Modulation TRANSMITTER RF Output Power Analogue Input Digital Input Power Supply RECEIVER Sensitivity Analogue Output Digital Output Power Supply MAX 485.950 490.000 930.000 25.0 7.0 DIMENSION MHz MHz MHz KHz mSecs NOTE UK World World Factory 1 25.0 5.0 F3D 5.0 3.5 7.2 270.0 0.5 4.7 8 290.0 500.0 5.0 10.0 390.0 mW Vp-p V V mAmps mod. TTL -112 2.0 5.0 5.5V 15.0 dBm Vp-p V V mAmps 10dBSIN AD +/-5KHz TTL 5.0 12.0 12 18.0 Note: Switch mode power supplies can produce RF frequencies that will interfere with the receiver signal. PART No. TX8000.XXX RX8000.XXX RADIO PROPAGATION With any radio system there are a number of factors which affect the system performance. These are: Transmitter power output. Height of transmitter and receiver antenna. Length and type of coaxial feeder cable to the antenna. Type and efficiency of the antenna. Topography between transmitter and receiver. The weather. DESCRIPTION Transmitter XXX = RF Frequency Band Receiver XXX = RF Frequency Band ANTENNA X603 Quarter Wave Antenna Low cost, mobile, omni-directional, short range approximately 2km X604 Mast Mounted Dipole Antenna Omni-directional, base station, range approximately 10km X605 High Gain Yagi Antenna Directional beam of 40, range approximately 10-20km, usually used on receivers only. DS8000-1 Dec 02 (c)2002 REG No 277 4001, England. Page 2 Synthesised Radio Modules TRANSMITTER CONNECTIONS: Pins on underside of Module PIN 1 2 3 4 5 6 7 8 9 10 11 12 DESCRIPTION Ground Digital Data Input (TTL) Switched +5V Regulated +5V Transmitter ON (Connected to Ground to start the Transmitter) Supply Voltage to Module (7.2 - 10V) Receiver RF Output (for use in transceiver) Ground Antenna TX8000/RX8000 DIRECTION Input Input Output Output Input Input Output Input Output RECEIVER CONNECTIONS: Pins on underside of Module PIN 1 2 3 4 5 6 7 8 DESCRIPTION Ground Receiver Signal Strength Indicator (RSSI) Demodulated Output Power Supply Digital Data Output Power Supply (5 to 12V) Antenna DIRECTION Input Output Output Input Output Input Output MECHANICAL DETAILS 2.54 2.54 3.81 2 2 2 2 9 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 36 2 2 2 2 9 13.97 TX8000 RX8000 36 2.54 2.54 2.54 2.54 2.54 2.54 42 52 All Dimensions in mm 42 52 DS8000-1 Dec 02 (c)2002 REG No 277 4001, England. Page 3 Synthesised Radio Modules CIRCUIT CONNECTIONS TX8000/RX8000 Note: On the standard RX8000, pins 4 & 5 are not present. Therefore the pins are numbered 1 to 7 RF FREQUENCY An example of how the RF Frequency is set using the Programming Pins is shown below. The frequency band can be factory set in the range 400.00MHz to 490.00MHz and 860.00MHz to 930.00MHz at 12.5KHz or 25KHz spacing in bands of 1.3MHz. Hex Ch 00H 02H 04H 06H 08H 0AH 0CH 0EH 10H 12H 14H 16H 18H 1AH 1CH 1EH RF Freq MHz 458.500 458.525 458.550 458.575 458.600 458.625 458.650 458.675 458.700 458.725 458.750 458.775 458.800 458.825 458.850 458.875 PIN 1 LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH PIN 2 LOW LOW HIGH HIGH LOW LOW HIGH HIGH LOW LOW HIGH HIGH LOW LOW HIGH HIGH PIN 3 LOW LOW LOW LOW HIGH HIGH HIGH HIGH LOW LOW LOW LOW HIGH HIGH HIGH HIGH PIN 4 LOW LOW LOW LOW LOW LOW LOW LOW HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH PIN 5 LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW Hex Ch 20H 22H 24H 26H 28H 2AH 2CH 2EH 30H 32H 34H 36H 38H 3AH 3CH 3EH RF Freq MHz 458.900 458.925 458.950 458.975 459.000 459.025 458.050 458.075 458.100 458.125 458.150 458.175 458.200 458.225 458.250 458.275 PIN 1 LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH PIN 2 PIN 3 LOW LOW HIGH HIGH LOW LOW HIGH HIGH LOW LOW HIGH HIGH LOW LOW HIGH HIGH LOW LOW LOW LOW HIGH HIGH HIGH HIGH LOW LOW LOW LOW HIGH HIGH HIGH HIGH PIN 4 LOW LOW LOW LOW LOW LOW LOW LOW HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH PIN 5 HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH Note: Each Country has different rules and regulations on the use of RF Spectrum. R. F. Solutions Ltd., Information contained in this document is believed to be accurate, however no representation or warranty is given and RF Solutions Ltd. assumes no liability with respect to the accuracy of such information. Use of RF Solutions' products as critical components in life support systems is not authorised except with express written approval from RF Solutions Ltd. Unit 21, Cliffe Industrial Estate, Lewes, E Sussex, BN8 6JL, England Fax +44 (0)1273 480 661 Tel +44 (0)1273 898 000 http://www.rfsolutions.co.uk Email sales@rfsolutions.co.uk R F Solutions is a member of the Low Power Radio Association. DS8000-1 Dec 02 (c)2002 REG No 277 4001, England. Page 4 |
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