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EW microRecorder 

Instructions 

Hardware V7 Firmware V6.74 and above 

29/4/07 

 
 
 

 Unit 

comprises- 

 microRecorder 
 Antenna 
 USB 

download/charging 

lead 

 EW 

microConnector 

 

 

 
 
 

Introduction 

The EW microRecorder logs GPS track and pressure trace in a secure .IGC file. These files can 
be downloaded over USB using Windows Explorer. The file contains an encoded digital 
signature. This means that any subsequent change made to the file can be detected. Hence files 
produced by the microRecorder can be checked to ensure that file is unchanged. The software to 
carry out this task is in the public domain and can be downloaded from our website 

www.ewavionics.com

  

The re-chargeable batteries provide up to 100 hours of use. (Dependant on update rate). Charging 
is by USB, or via a separate charger. 

 
Installation 

The microRecorder should be installed away from direct sunlight to prevent high temperatures 
inside the microRecorder. If the temperature exceeds 85 deg C the microRecorder will stop 
functioning until the temperature has fallen to 70 deg C, Velcro tape is ideal for the purpose of 
mounting. 

Summary of Contents for EW microRecorder

Page 1: ... files produced by the microRecorder can be checked to ensure that file is unchanged The software to carry out this task is in the public domain and can be downloaded from our website www ewavionics com The re chargeable batteries provide up to 100 hours of use Dependant on update rate Charging is by USB or via a separate charger Installation The microRecorder should be installed away from direct ...

Page 2: ...update rate of 1 sec for 30 sec White Blue Pin 6 NMEA messages are GPGSA GPRMC GPVTG PGRMZ at a default rate of 38400 baud see EW User txt Green Pin 7 Reset pin connecting momentarily to ground will switch the microRecorder off White Brown Pin 8 Earth Brown Battery Operation This is not recommended for update rates of less than 5 secs as drain on the battery is significantly increased To start pre...

Page 3: ...he microRecorder may be charged either using an EW microCharger or by connecting to the USB on your computer In either case the microRecorder should be switched off and not connected to an antenna The computer must be running and not be in a sleep mode Ensure that the red LED remains on indicating charging It can take up to 12 hours to fully charge the batteries After even a brief charge the batte...

Page 4: ...is met with a buffer of the previous 30 readings Setting either parameter to zero will start recording immediately not advisable if using EW microCharger as this will result in a large blank file Once started recording will continue until the microRecorder is switched off microRecorder SD If the SD Flash unit is fitted the option of synchronising just the last file type last or all files type All ...

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