Javad MinPad, User Manual

Page 1: ...h 2006 All contents in this document are copyrighted by JNS All rights reserved The information contained herein may not be used accessed copied stored displayed sold modified published or distributed or otherwise reproduced without express written consent from JNS ...

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Page 3: ... 2 2 STAT LED 2 2 FN Key and REC LED 2 3 Information Modes 2 6 Normal 2 6 Extended Information Mode EIM 2 6 NVRAM clearing with MinPad 2 8 RX LED 2 9 L Band Beacon Receiver 2 9 JNS 2W UHF 410 470 MHz radio transceiver 2 10 PDL Modem 2 10 Single GSM GPRS radio modem 2 10 JNS 1W UHF902 928 MHz radio transceiver 2 10 LED Indicator for JNS Tri Band Receiver 2 11 Battery LED 2 12 ...

Page 4: ...ii Modem JNS Software Manual www javad com Notes ...

Page 5: ... automation to the GPS field operation Its function is similar to what is available on advanced photo cameras where the camera takes several light and distance measurements adjusts all the settings of the camera and conveys the ready status of the camera by a green light for the photographer to push the button Behind the simple appearance of MinPad there are sophisticated algorithms and tests that...

Page 6: ...at are being tracked Shows data recording status Shows each time data is recorded to internal memory MinPad s LEDs and Keys As usually MinPad has the following LEDs one Status STAT LED and one Recording REC LED Notice In the systems with more than one board e g JNSGyro 2 and JNSGyro 4 there are more than one STAT and one REC LEDs Each LED has three colors red green and orange MinPad as usually has...

Page 7: ...ys Receivers equipped with communication board Figure 1 2 have also the communication board status RX LED Figure 1 2 Maxor s MinPad In addition MinPad has protection against stuck keys e g when a key is held down unintentionally for a long time by other objects in a backpack ...

Page 8: ...1 4 MinPad User s Manual www javad com Notes ...

Page 9: ...is chapter provides an overview of the MinPad s keys and LEDs This information is split into the following sections PWR Key 2 2 Reset Key 2 2 STAT LED 2 2 FN Key and REC LED 2 3 Information Modes 2 6 NVRAM clearing with MinPad 2 8 RX LED 2 9 Battery LED 2 12 ...

Page 10: ...y Pressing the reset key for about one second causes a hard reset of the receiver the receiver to leave Zero Power Mode and return to Normal Mode Notice Only use this procedure if the receiver does not respond to commands or does not charge the internal batteries is in Zero Power Mode STAT LED When the receiver is ON and no satellites are tracked the STAT LED is red Instead this LED blinks as foll...

Page 11: ...r OAF The REC LED blinks green or orange each time data is written to the internal receiver s memory You set the data recording time interval using PCView See PCView Software Manual for information on setting this function Each time you turn off or on data recording either a new file opens or data appends to a particular file Pressing the FN key for more than five and less than eight seconds will ...

Page 12: ...problem with data recording Pressed for 1 second If FN key mode is LED blink mode switch Orange Release to charge information mode If FN key mode is Occupation mode switch Orange No function Pressed for 1 5 seconds If FN key mode is LED blink mode switch Green Release to start data recording post processing occupation mode undefined If FN key mode is Occupation mode switch Green Release to start r...

Page 13: ...ssing occupation mode Orange Data recording started Static post processing occupation mode Pressed for 1 second If FN key mode is LED blink mode switch Orange Release to change information mode If FN key mode is Occupation mode switch Orange Release to toggle between Static and Kinematic post processing modes Pressed for 1 5 No light Release to stop data recording Pressed for 5 8 seconds Red Relea...

Page 14: ...following extended information Delimiter an easily distinguishable double blink that shows the overall status of tests performed in EIM The STAT LED color for delimiter is calculated from the colors of other STAT LED blinks Orange at least one blink is orange Red no orange blink and at least one red blink Green all other cases Sufficient data for position computation GPS S N ratios are good Table ...

Page 15: ...vailable Green receiver passed the test Red receiver failed the test 1 To switch to EIM press and quickly release within one second the FN key on the MinPad 2 Watch for the delimiter double blink With good receiver antenna and observation conditions all blinks should be green within 15 minutes of powering on Green ok Orange wait Red some tests failed 3 To switch back to normal press the FN key ...

Page 16: ... do that Turn the receiver OFF Press and hold FN button Press and release PWR button to turn the receiver ON Wait until both LEDs will light green Wait around five seconds until both LEDs will blink orange Release FN button Note that LEDs will blink orange only during next five seconds and to clear NVRAM it is essential to release FN button when they blink yellow ...

Page 17: ...e RX LED indicates the status of the differential corrections for the L Band Beacon board The command BR002RG changes over the Red and Green LEDs Mode LED Status Explanation L Band No light Receiver is turned off Green flashes Receiver is searching for the selected L Band satellite Solid green The selected L Band satellite is locked Solid green red flashes The L Band satellite is locked and raw da...

Page 18: ...aiting mode Solid green red flashes Modem is receiving data Solid red Modem is transmitting data Red flashes green flashes Modem is in command mode LED Status Explanation No light Modem is turned off Solid orange Modem is not registered in network Solid green red flashes every 2 sec Modem is registered in network and is in waiting mode Solid green red flashes every 0 5 sec Modem is during a call a...

Page 19: ...here are no conducting objects near the antenna location Red flashes green flashes Modem is in command mode LED Status Explanation The RX LED indicates the L Band signal status Flashes green The satellite signal is being searched Solid green The satellite is locked Solid green red flashes The data is being received The RX LED indicates the Beacon signal status Flashes green the Beacon station sign...

Page 20: ...f power Solid light an external power supply is used and the batteries are not being charged Blinking once a second the batteries are being charged Blinking once every five seconds the receiver uses the internal batteries for power Not blinking the receiver is in Zero Power Mode or the internal batteries are completely discharged and no external power is connected Notice When the internal batterie...