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Berkeley Varitronics Systems Fox Manual

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Summary of Contents for Berkeley Varitronics Systems Fox

  • Page 1 manual version 4.4...

  • Page 2: Table Of Contents

    FOX APPENDIX Battery Charge/Discharge POCSAG Measurements FOX Troubleshooting FOX Supplemental Material BVS FOX Serial Interface – Data Responses Binary File Format PCMCIA Card Record Structures Millisecond to Degree Conversion Fox PCMCIA Step-by-Step Data Collection & Conversion ONCORE INTERNAL GPS RECEIVER...

  • Page 3: Operational Tips - Before You Start

    Be very careful to be familiar with and follow the instructions for exiting the Fox and turning it off. If you do not, you can jeopardize the integrity of the data stored on the PCMCIA card.

  • Page 4: Overview

    INTRODUCTION Overview is a hand-held, battery powered signal strength meter convenient for finding RF “shadows” in indoor wireless systems or for drive-around studies to detect RF leakage and propagation coverage. is designed to be powered from either AC, a cigarette lighter, or to run for up to 8 hours on its internal, rechargeable NiCad (Nickel Cadmium) battery. General Features •...

  • Page 5: Introduction

    FUNCTION Pause the measurement. Y axis -120 to -70 dBm. Y axis -120 to -30 dBm. Text/Graph (Survey CHAN, 1 MHz sweep) Increase display contrast. Decrease display contrast. Display marker,date/time and battery gauge, Lat-Lon, odometer and PCMCIA gauge. ENTER Enter frequency (or channel #) for position marked by cursor (CO, ADJ, 20 CHAN) or change I CHAN measurement frequency (or channel #).

  • Page 6: Fox Rear Panel

    In addition, there are two charging methods. The first is trickle charge, and the second is fast charge. The low battery light will come on when the FOX’s internal batteries need charg- ing.

  • Page 7: Fox Main Menu

    This manual covers all models (except for EAMPS) so some menus may not apply to your own custom Fox. The current GPS status is displayed in the lower lefthand comer of the display. If appears, it means the GPS is locked to at least 3 satellites and LAT/LON is valid.

  • Page 8: Adjacent Channel

    ADJACENT CHANNEL The adjacent channel measurement is used to measure any frequency and the two frequencies immediately adjacent to it. To select the center frequency, press ENTER and enter the center fre- quency. This measurement displays the dBm read- ings of all three frequencies in both bar graph and digital formats.

  • Page 9: Fast Fade

    The dBm value displayed on the FOX display is the average of the 64 samples saved on the PCMCIA card (also displayed is PCMCIA storage and GPS status). Note: FOX display and PCMCIA overhead is about 60 msec, so that when sample rates of 1,2 or 4 are selected, the number of measurements per second is limited by this overhead time.

  • Page 10: Channel Measurement

    The start and end records are recorded regardless of the threshold setting. Setting the threshold to 120 dBm will cause all data to be saved on the card as in prior versions of the FOX’s ROM.

  • Page 11: Variable Sweep

    When in the text screen, the strongest 7 frequencies are displayed with the strongest on the top of the display, weakest on the bottom. HIGHEST dBm LATCH The highest dBm reading for each frequency is held or “latched”. If the unit is left on for a period of time in one location, this feature will show all of the highest readings for this time period.

  • Page 12: Receiver Status Menu

    Status is also available by selecting the STATUS item in the main menu. The display shows current marker, odometer, GPS LAT/LON and GPS status as well as the number of satellites (1-7) that are cur- rently being tracked by the GPS receiver in the FOX. Current time, date, battery and PCMCIA state are also displayed below.

  • Page 13: Fox Setup Menu

    The SETUP MENU can be reached from the MAIN MENU and should be accessed before you begin to receive signals on your FOX. You can re-enter the MAIN MENU at any time from the SETUP MENU by pressing ESC. Use the 4...

  • Page 14: Download Data

    FOX. All of the data for current measurements is saved in a disk file using the “Fox.EXE” PC pro- gram. The RF dump mode can be used to provide a backup to the PCMCIA data or in situations where more than 32 Megabyte of data is being collected (the present limit of PCMCIA storage).

  • Page 15: Marker Type

    MARKER TYPE Use this selection under the SETUP MENU to determine the way in which you plan to log your events. When MARKER / ODOMETER is selected, a mark may be attached to a study based upon PP MILE settings. In this setting the MARKER key works as in prior versions during measurements and the odometer reading is saved according to the current PP MILE setting.

  • Page 16: Set Pp Mile (Odometer Setting)

    Odometer reading can be reset to 0000.0 during measurements using SHIFT+7 sequence. Pulses Per Mile (PPM) Settings Note: Fox setup parameter, Pulses Per Mile (PPM), must be set to a minimum value of 10. Tested: Signal source: pulse generator (0-12v) pulses. Rate...

  • Page 17: Foxdl Pc Software

    Fox. Also, the Fox needs to be setup to send data. Look for the RF download option under the setup menu on the Fox. Make sure that this option is checked. Once the Fox is sending information through the serial cable, start the DL application.

  • Page 18: Main Screen

    Fox. For instance, if the Fox is in C/I ratio mode, the same screen will be displayed in the DL. The real-time viewing area can be toggled with the GPS satellite screen by pressing the button locat- ed in the toolbar.

  • Page 19: Gps Information Status Bar

    FIGURE 3 – Paging Screen GPS Information Status Bar The top status bar on the main screen is the GPS Information status bar. This will contain valid information when the GPS receiver is locked. When the GPS receiver is locked, the background color of the data capture bar and the GPS Information status bar will be green.

  • Page 20: Fox Information Status Bar

    They may be restored using the open option. Press the upload button to send the table to the Fox. Be sure not to be in 20-channel mode on the Fox. In this situation, the table will not be overwrit- ten.

  • Page 21: Paging Capcode Table

    matched mode. This mode is used on the POCSAG and FLEX screens. Use the POCSAG or FLEX button on the toolbar to pull up the editor. Choose the CAPCODES to match and then upload or download accordingly using the options given.

  • Page 22: Foxdl Pc Card Download Utility

    Using the Application Make sure that the Fox is connected to the PC using the serial cable that shipped with the unit. Then use the following steps to download the PC card data. FDU is the Fox Download Utility on the PC. FOX is the Fox unit itself.

  • Page 23: Bvs Chameleon Cw User Manual

    BVS Chameleon User Manual Introduction The Chameleon application software is the universal data conversion and filtering tool for BVS Receivers. The Chameleon was designed to greatly simplify the transfer of receiver data to many popular post-pro- cessing applications such as MapInfo and MSI Planet. In addition to the ability of this application to convert data into custom formats, different filtering capabilities are available to facilitate the extraction of useful data needed for network analysis.
  • Page 24 This step enables the user to specify which data is to be converted. This section also contains various filters that can be used to reduce the amount of information being converted into the output file. Choose which receivers are to be converted. Different CW products have a different amount of receivers. Chameleon will only convert data from the receivers which are selected here.

  • Page 25: Fox Appendix

    APPENDIX Battery Charge/Discharge BATTERY RUN TIMES - (NO DC INPUT) The following conditions assume unit is turned on after the battery has been fully charged. CONDITION 1 (worst case): GPS on BACKLIGHT on ATA save on (2 Meg card) RF dump on RUN TIME: 3 hours CONDITION 2 (best case): GPS off...
  • Page 26 xxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxx GL xxxxxxx xxxxxxxxxxxxxxxxxx 100 line: Header Frequency being measured, last RSSI reading, last measured BPS (in reverse video if >+-.5% of selected speed, BER (count of bits in error in last received batch). Header Last 4 addresses captured and their message (if any).

  • Page 27: Fox Troubleshooting

    IF THE FUNCTION CODES ARE NOT SET CORRECTLY for the system under study, the messages displayed on the Fox and PC SCREEN WILL NOT BE CORRECT. If data was saved on the PC with the function codes improperly set on the Fox, use the PC SOFTWARE main menu option O (FC OVERRIDE) to correct.

  • Page 28: Fox Supplemental Material

    Once the lock is re-aquired, the internal GPS unit will remember the local conditions and the next time the lock process will take less than 5 minutes (depending on antenna placement and how far the Fox has been moved since being turned off).
  • Page 29 IS-136 IS-136 Fox DOES NOT support the FAST FADE, LMHZ SWEEP or VAR SWEEP measurements. The IS-136 Fox uses the SAME cable (marked ATA DOWNLOAD) for both downloading the ATA card AND real time RF DUMP serial data logging. IS-136 Fox DOES NOT support auto cal. The units are calibrated at the factory using an HP ESG-D4000A digital signal generator.

  • Page 30: Bvs Fox Serial Interface - Data Responses

    1000 1960.02 1999 1989.99 BVS Fox Serial Interface – Data Responses There are no commands to send to the BVS receiver. Data is sent to the serial port when logging is turned on and a mea- surement is in progress.
  • Page 31 Number of data records * - Measurement Types Co-Channel Adjacent Channel 1 Channel 20 Channel Variable Sweep 1 MHz Sweep POCSAG Data Fast Fade Strongest AB Control CO Control Group Follow System ** - Navigation Statuses GPS OK 0x80 GPS OFF 0x40 GPS INSTALLED 0x20...
  • Page 32 2 Frame 1 WORD 1 Frame 1 WORD 2 Frame 2 WORD 1 Frame 2 WORD 2 Frame 3 WORD 1 Frame 3 WORD 2 Frame 4 WORD 1 Frame 4 WORD 2 Frame 5 WORD 1 Frame 5 WORD 2 Frame 6 WORD 1 Frame 6 WORD 2 Frame 7 WORD 1...

  • Page 33: Binary File Format

    Binary File Format The following are the PC save (serial) and PCMCIA structures for the FOX V1.3 firware. The only change from v1.2 is the for- mat of the GPS data and the addition of GPS velocity. Lat and Lon values are now saved as milliarcseconds (32 bit word - 4 bytes).

  • Page 34: Pcmcia Card Record Structures

    PCMCIA CARD RECORD STRUCTURES PC Card Structures #define RECT1 0xa1 /* record type 1 - start measurement */ #define RECT2 0xb2 /* record type 2 - reserved */ #define RECT3 0xc3 /* record type 3 - gps la,lo & rssi */ #define RECT4 0xd4 /* record type 4 - reserved */ #define RECT5 0xe5...
  • Page 35 PCMCIA Card Record Structures record type 2 */ typedef struct _tcrec2 BYTE Hour; BYTE Minute; BYTE Second; WORD YPos; WORD XPos; }TCREC2; record type 3 (rf + gps la,lo) typedef struct _tcrec3 BYTE Hour; BYTE Minute; BYTE Second; BYTE NumRSSI; /* # of rssi measurements following */ }TCREC3;...
  • Page 36 Page 35...

  • Page 37: Millisecond To Degree Conversion

    Decimal seconds=0.868988 Decimal seconds=0.440996 Latitude=41˚52’28.869” Longitude=87˚37’25.441” Conversion formula for changing Latitude and Longitude in degrees and decimal minutes for older versions of Fox: Lat = Deg + (Dec Minutes / 60) Lon = Deg + (Dec Minutes / 60) Page 36...

  • Page 38: Oncore Internal Gps Receiver

    ONCORE INTERNAL GPS RECEIVER Refer to this text for: interface protocol descriptions operational modes of your ONCORE receiver additional customizing ca pabilities/operation OVERVIEW The Motorola ONCORE Receiver is an intelligent GPS sensor intended to be used as a component in a precision navigation system.
  • Page 39 Binary Data Sequence: Variable number of bytes of binary data dependent on the command type. Checksum: C - The exclusive-or of all bytes after the @@ and prior to the checksum. Message Terminator: <CR><LF> - carriage return line feed denoting end of the binary message. Every ONCORE Receiver input command has a corresponding response message so you can verify that the input commands have been accepted or rejected by the ONCORE Receiver.
  • Page 40 of the input command. Data Message Output Rates OUTPUT MESSAGE TYPE CONTINUOUS (m=1 255) ONE TIME (m=O) Position/Channel Status At selected update rate When requested Satellite Range Data Output At selected update rate When requested Pseudorange Correction At selected update rate When requested Output Ephemeris Data Output...
  • Page 41 There are three components of data in the satellite range data messagv (Carrier Phase Data, Smoothed Satellite Time data, and RAW Code Phaseand Code Discriminator Data) shown in the following table. Three Components of Satellite Range Data Message DATA CONTAINED IN SAT OPTION OPTION OPTION RANGE MSG Raw Code Phase &...
  • Page 42 Ttcf= input anywhere across one second period + command processing + output anywhere across one second period following command processing 0.5 s + 0.05s + 0.475 s 1.025s Worst Case (Position Fix): Any command Twcf= input beginning of one second period + output end of one second period 1 s + 1 s NMEA-0183 Format Description...

  • Page 43: Fox 40 Lambda Averaging In Chameleon Cw

    Berkeley Varitronics Systems, Inc. has support for this type of averaging in “Chameleon CW”, the universal data conversion tool, starting with version 1.53. This tool converts data that has been collected using Berkeley’s CW line of receiver equip- ment.

  • Page 44: Fox Fast Fade Quick Start

    FOX FAST FADE QUICK START 1) Select the PC serial port that the FOX is connected to using the dialog provided when the application is started. 2) Turn ON RF DUMP in the FOX setup menu. 3) Start a FAST FADE measurement from the FOX main menu using 4 A to D samples.
  • Page 45 Display RSSI check BOX - when checked, the fast fade rssi is not plotted on the screen. Check if it is not required to view RSSI while converting a file to ASCII as this will speed the conversion. SAVE ON - Start saving fast fade data to the file selected via the menu Save File option. File status is displayed on the lower left side of the screen.

  • Page 46: Fox Remote Key Commands

    FOX to execute the requested key press. If a measurement is started and the FOX ‘RF DUMP’ is on, measurement data will begin to be sent from the FOX serial port. If the PCMCIA save is on, measurement data will begin to be saved to the card.

  • Page 47: Glossary Of Acronyms

    Glossary of Acronyms Alternating Current Analog to Digital converter Automatic Gain Control Applet a small application Bit Error Rate BPSK Binary Phase Shift Keying Band Width CDMA Code Division Multiple Access (spread spectrum modulation) Direct Current Digital to Analog decibel decibels referenced to 1 milliwatt Digital Operating System Digital Signal Processing...

  • Page 48: Pcs Allocation Table

    PCS BLOCKS Page 47...

  • Page 49: General Safety

    Page 48...
  • Page 50 IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons, including the following: 1)Read and understand all instructions. 2)Follow all warnings and instructions marked on the product. 3)Unplug this product from the wall outlet before cleaning.
  • Page 51 2. Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. 3. Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network inter- face. 4. Use caution when installing or modifying telephone lines. INSTRUCTION FOR BATTERIES CAUTION: To Reduce the Risk of Fire or Injury to Persons, Read and Follow these Instructions: Use only the type and size of batteries mentioned in owner’s manual.
  • Page 52 Available Frequencies: from stock. Cellular IVDS AMPS ETACS PACS Paging The Fox is just one of many exceptional design solutions from ERKELEY Berkeley Varitronics. Call us today for more information: (732) 548-3737 / Fax: (732) 548-3404 ARITRONICS Internet: www.bvsystems.com E-mail: info@bvsystems.com...
  • Page 53 4 KHz, 10 KHz, 25 KHz, 30 KHz BER Demodulation: Bit, byte, packet and burst error counts (certain models only) Berkeley Varitronics Systems, Liberty Corporate Park, 255 Liberty Street, Metuchen, NJ 08840 Phone 732-548-3737 ¥ Fax 732-548-3404 ¥ Internet: www.bvsystems.com ¥ E-mail: info@bvsystems.com 091598FX...

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