2. MicroMet Group Cutting Edge Technology Upper Air Radio Sounding Systems

3. Introduction Sensor technology RF Communication Signal processing Computer applications MicroMet Upper Air Sounding Systems use state-of- the-art techniques in : MicroMet

4. MicroMet’s Radiosonde Family Mini-Rawin Sonde Systems GPS – based Wind Finding Radiosonde Systems Tethersonde Systems Dropsonde System Air-launched Radiosonde Systems MicroMet

5. GPS – based Wind Finding Radiosonde System : MicroMet

6. Radiosonde Payload 12-channel GPS on – board Fast response Sensors Pressure, Temperature & RH Sensor fitted Ozone Sensor optional 4 extra channels for any other Sensors Microprocessor-controlled logging – uses AVR RISC processor FPGA used for signal processing Digital Synthesised Transmitter (DDS technology) in 400-410 MHz band GFSK Modulation Choice of NiMH or Water – activated battery MicroMet

7. High Performance Receiver Digital synthesized ultra-sensitive RF Receiver FPGA based signal processing Fully microprocessor – based Controller 2X16 VFD Display for real-time display of data & system set up 4X6 long-life tactile Keypad for system operation Removable Flash Memory up to 128MB - - Enough for 600 two hourly flights Can also be used without PC. Data can be down loaded on PC later & analysed Rechargeable Battery used in the System Rugged & Reliable MicroMet

8. Receiving Computer System can use PC either in real- time or off - line mode Data can be transferred –from receiver directly on-line –from removable Memory Module off-line Any Notebook or Desktop Computer can be used (Pentium-III & Above ) Works under Windows environment Linux O/S available on request MicroMet

9. Application Software Comprehensive Application Software built-in, based on MicroMet - DAD suite User-friendly -- Can be used by inexperienced operators Standard Displays include TEXT, NUM DATA, X-YR, SCR, CCR & BCR System Displays include Skew-T log P diagrams, Hodographs, Wind diagram with Elevation Angles, Stuve diagrams & Winds Ballistic applications software available Easy-to-use Set Up utility Any number of Set-Up’s can be stored Host of other utilities include Insert, View Report Generation Facility Can print in any display or report mode Custom Software available MicroMet

10. Advantages of MicroMet Radiosonde Systems Uses the Latest In GPS Technology With Ground Check Facility Fully Ruggedized For Use In Harsh Conditions Manufactured to meet international standards (ETSI standard for digital radiosondes) High accuracy of data recorded Radiosonde available from Stock. No need to stock huge quantities Available for Sale All Over the World Uses latest manufacturing technologies -- SMD, DDS, FPGA, AVR- mega Can be operated in field. Data can be recorded on removable mini- memory modules, which can be transported easily Very low power consumption MicroMet

11. MicroMet Group Cutting Edge Technology