MoTeC USA Introduction Thank you for purchasing a MoTeC USA GPS receiver. This user’s guide was written to help you understand how the MoTeC USA GPS (Global Positioning System) device works. Please read it thoroughly. Installation is very important, and understanding how GPS works will help you get the most from this sensor.
MoTeC USA Status LEDs There are 4 LEDs on the front face of the unit labeled as follows: POWER (red): Unit has power. • GPS (yellow): GPS signals have been • acquired and calculated data is being sent out. DIFF (yellow): SBAS differential satellite available. •...
MoTeC USA Speed Output Pulse This output is for devices that can’t accept a RS-232 serial input. It provides a 0-5 volt square wave output which can be fed into a digital input on any MoTeC product. The frequency output calibration in different speed units is: 94 Hz per 1 m/s 940 Hz per 36 km/h...
MoTeC USA Installation Installation GPS Receiver The enclosure is made from 6061 Aluminum alloy. It should be mounted in a safe location, away from electrical noise and vibration. We recommend hook & loop or double sided foam tape. Maximum operating temperature is 70°C or 158°F. Antenna The location of the antenna is VERY important.
MoTeC USA Installation Try to keep the antenna mounted on the centerline of the • vehicle. As with normal wheel speeds, during cornering the speed of the inner side of the chassis is less than the speed of the outer side of the chassis. If you use double sided tape or hook &...
MoTeC USA Installation Setup for ADL2 / SDL / ACL For ADL2, SDL or ACL use, please select the template “GPS - Standard RMC GGA” listed under the communications RS-232. Verify 57,600 for the baud rate. You’ll be able to log the following channels of information: Recommended Logging Rates Update Option: 10 Hz...
MoTeC USA Installation Setup for M400 / M600 / M800 Wire the speed output pulse into a digital input on the ECU. For the calibration number, use one of the following: 9400 for km/h 15128 for mph The maximum speed which can be measured on the ECU through the digital input is 675 km/h or 420 mph.
MoTeC USA Analysis “i2” Analysis Math GPS data will have an inherent time lag. The sequence of delays are from receiving real-time satellite signals, processing them, sending the data into the logger and the logger logging them. MoTeC’s “i2” has a built-in “Corrected GPS”...
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MoTeC USA Analysis The speed output pulse or variable voltage output should not be included in the “Corrected GPS” calculations. It will require a separate time shift function. In “i2” add the following math expression for your speed pulse channel: For the Motec ADL, the built in “Corrected GPS”...
MoTeC USA Appendix Appendix GPS Engine Specifications 12-channel GPS engine. Horizontal accuracy < 1 meter at 95% Update rate of 10 Hz or 20 Hz optional. Screw on SMA antenna connector. 57600 kbit/s baud rate, other rates available upon request. NMEA standard $GPGGA and $GPRMC data, other messages available upon request.
MoTeC USA Appendix Physical Case Size: 3.95” x 2.7” x 0.9” (excluding connectors) 100 mm x 69 mm x 23 mm (excluding connectors) Weight: 164 grams without antenna Connection The mating connector is a yellow band AS 610-35SA. (Some early units have the red band AS 610-35SN) •...
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