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Javad MinPad User Manual

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MinPad
User's Manual
©Copyright Javad Navigation Systems, Inc.
March, 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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Summary of Contents for Javad MinPad

  • Page 1 MinPad User’s Manual ©Copyright Javad Navigation Systems, Inc. March, 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...

  • Page 3: Table Of Contents

    Chapter 1. Introduction MinPad Functions ........1-2 MinPad’s LEDs and Keys .
  • Page 4 Notes: ii Modem-JNS Software Manual www.javad.com...

  • Page 5: Chapter 1. Introduction

    NTRODUCTION MinPad (Figure 1-1) is a simple user interface that consists of two keys and two LEDs, which can control and display the operation of the receiver. Figure 1-1. MinPad MinPad brings a new level of automation to the GPS field operation. Its...

  • Page 6: Minpad Functions

    • Shows the number of GPS and GLONASS satellites that 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.
  • Page 7 • 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). www.javad.com...
  • Page 8 Notes: 1-4 MinPad User’s Manual www.javad.com...
  • Page 9 Information Modes ........2-6 NVRAM clearing with MinPad ......2-8 RX LED .

  • Page 10: Pwr Key

    • Pause, if the receiver can estimate its navigation position, red blink if it can't. For example, if 8 GPS and 5 GLONASS satellites are being tracked, the STAT LED repeatedly blinks 8 greens and 5 oranges between successive pauses or reds. 2-2 MinPad User’s Manual www.javad.com...

  • Page 11: Fn Key And Rec Led

    During this operation, the REC LED flashes orange, and the file system is not accessible for CDU (control display unit) applications or for data recording. This operation may require from fractions of a second to several www.javad.com MinPad User’s Manual 2-3...
  • Page 12 Release to start recording (Kinematic or Green Static post-processing occupation mode). Pressed for 5–8 Release to turn serial port A baud rate to seconds 9600 bps. Pressed for > 8 No light No function. seconds 2-4 MinPad User’s Manual www.javad.com...
  • Page 13 No light Release to stop data recording. Pressed for 5–8 Release to turn serial port A baud rate to seconds 9600 bps. Pressed for > 8 No light No function (data recording still on). seconds www.javad.com MinPad User’s Manual 2-5...

  • Page 14: Information Modes

    • Oscillator's frequency offset is less than three ppm. • Oscillator's Allan Variance is better than 2.7e-10. • Continuous tracking time is more than 15 minutes. Table 2-2. Signal-to-Noise (S/N) «Good» Ratios CA/L1 P/L1 P/L2 GLONASS 2-6 MinPad User’s Manual www.javad.com...
  • Page 15 • 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.

  • Page 16: Nvram Clearing With Minpad

    K E Y S A N D L E D S NVRAM clearing with MinPad NVRAM clearing with MinPad It is possible to clear NVRAM using only MinPad. To do that: • Turn the receiver OFF. • Press and hold FN button.

  • Page 17: Rx Led

    A signal from the Beacon station is locked Solid green + The receiver is tracking the signal from the Beacon station red flashes and RTCM messages are being received. The command BR002RG changes over the Red and Green LEDs. www.javad.com MinPad User’s Manual 2-9...

  • Page 18: Jns 2W Uhf 410-470 Mhz Radio Transceiver

    JNS 1W UHF902-928 MHz radio transceiver LED Status Explanation No light Modem is turned off. Green flashes Modem is in receiver mode. A radio link has been established; modem Solid green is ready to receive data. 2-10 MinPad User’s Manual www.javad.com...

  • Page 19: Led Indicator For Jns Tri-Band Receiver

    Solid green + red flashes The data is being received The RX LED indicates the UHF signal status Solid green The UHF is ready to receive a signal Solid green + red flashes The data is being received www.javad.com MinPad User’s Manual 2-11...

  • Page 20: Battery Led

    Notice: When the internal batteries have completely discharged and no external power is connected, the receiver will go into Zero Power Mode to prevent the batteries from over discharging. 2-12 MinPad User’s Manual www.javad.com...

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