TelemetryPro® System Specifications
  • RF link uses ISM Band 902-928 MHz (USA) or 915-928 MHz (Australia) 
  • Spread spectrum frequency hopping with FSK modulation.
  • Maximum transmit power 1.0 W (30 dBm). 
  • Typical transmit power used during flight is 500 mW  (27 dBm)
  • Receiver sensitivity -108 dBm
  • Downlink radio range measured to be 550,000 feet  (100 miles)
  • Telemetry packets (binary format) transmitted every 200ms (Five per second)
  • Transmitter antenna: 2.5 dBi, 1/2 wave dipole, omnidirectional
  • Receiver antenna:  3 element, crossed YAGI, RH circularly polarized.
  • Unique ID codes for transmitter and receiver pairing.
  • Two-way radio link.  Receiver can send commands to the transmitter. 
  • FCC certified for unlicensed operation. 
GPS  (Kate-1)
  • Ublox-7 GPS engine, 56-channel, L1 C/A, SBAS: WAAS
  • Operating in high dynamics airborne mode at five position fixes per second
  • Operational limits 50,000 m and 500 m/s,  (164,000 feet and 1,640 feet/sec)
  • GPS tracking sensitivity -162 dBm
  • Active patch antenna, 25 x 25 mm, SAW filter, 15dB LNA, +1.5dBic patch gain at zenith, RHCP.
  • GPS almanac retained while device is powered off.
Kate-1 Transmitter
  • Size: 11.79 x 2.125 x 2.125 inches,  300 x 54 x 54 mm,  mounts inside 54mm tube
  • Weight: 243 grams, 8.6 oz
  • 50 G accelerometer recorded at 100 readings per second.  Recommend 45 G max thrust to allow for operational margin.
  • Accelerometer altitude max dynamic range: >800K feet
  • GPS and accelerometer data are merged into one flight data stream.
  • Flight data is recorded in non-volatile flash memory.  
  • Flight data recording time is from T-6 seconds to T+1 hour for a flight that is 30s to apogee.
  • 32-bit RISC ARM Cortex-M3 CPU, 50 mips
  • USB 2.0 compatible interface.  Mini-USB connector.  Used to download flight data and for updating firmware.
  • Wireless turn-on capability. 125 KHz magnetic field sensor.
  • Seven LED status indicators:  Flight Mode, Config Mode, Linked, USB Activity, Charging, Charge Done, Charge Failed
  • Onboard Li-ion 3.7V, 2.6Ah battery provides at least 5 hours of standby time prior to flight.  
  • Built-in USB battery charger, draws 900 ma on dedicated charger, 500 ma on standard port.  
  • Charging time: 1 to 4 hours depending on battery discharge state and charger power source.
  • Battery charger operational temperature range: 0C to 50C, 32F to 122F
  • Four optional use mounting studs, 0.75" x 3.25" spacing, 4-40 threads, 0.25" depth
Receiver
  • Size: 4.75 x 4.75 x 16.2 inches,  121 x 121 x 412 mm
  • Weight: 908 grams, 2.0 lbs
  • Signal strength indicator: 10 dB per bar
  • LCD: 128x64 pixels, 7 lines x 21 characters, sunlight readable, internal white back-light, user adjustable brightness and contrast.
  • Five cursor navigation buttons, tactile feedback with audible click, 300gf, 10,000,000 cycle life
  • Flight data from four flights can be saved in non-volatile flash memory. 
  • Voice audio from four flights is also saved and can be recalled for playback in the receiver. 
  • 32-bit RISC ARM Cortex-M3 CPU, 50 mips
  • Built-in speaker, 3W, 4 ohm, 86 dBA, 71 x 41 mm
  • 3.5mm stereo audio output jack, line-level output.
  • USB 2.0 compatible interface.  Mini-USB connector.   Used to download flight data and for updating firmware.
  • USB also provides live GPS data in map mode.  Standard GPGGA NMEA sentence at 4800 baud. .   
  • Requires four AA alkaline batteries.  Recommend Duracell or other equivalent high quality battery.
  • Rugged hand held polycarbonate case, white.
  • Transparent, scratch resistant, polycarbonate face plate.
  • Two steel carry handles, 3" span.
  • Soft silicone rubber side grips, red.
Turn-on Coil
  • Size: 10 x 6.5 x 1.2 inches,  254 x 165 x 31 mm
  • Weight: 181 grams,  6.4 oz  
  • 6 inch (152 mm) diameter coil
  • 125 KHz field
  • Green LED indicator for battery status, sunlight visible.
  • Push button, recessed flush.
  • Requires one 9V alkaline battery.  Recommend Duracell or other equivalent high quality battery.
Carrying Case
  • External dimensions:  18.2 x 13.4 x 6.7 inches,  462 x 340 x 170 mm
  • Internal dimensions:   17.0 x 11.7 x 6.2 inches,  432 x 297 x 157 mm
  • Weight:  6.4 lbs, 2.9 kg  (with foam)
  • Body: Injection Molded HPX® high performance resin
  • Latch: Valox - Polybutylene Terephthalate (PBT)
  • O-ring: Silicone sponge
  • Foam: Anti-static pink polyurethane/ester
  • Purge vent: Gortex membrane
  • Purge o-ring: Buna-N, 50-60 Durometer Shore A
  • Buoyancy:  45.64 lbs, 20.7 kg​
Weights for Pyro Board Options
  • Mx230 Opt-10:  353 grams with 9V Lithium pyro battery
  • Mx230 Opt-20:  244 grams
  • Mx230 Opt-25:  335 grams with 9V Lithium pyro battery
  • Mx230 Opt-30:  335 grams with 9V Lithium pyro battery