Raveon RF-7800W Technical Manual Download Page 38

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Company Confidential

Raveon Technologies Corp.

12. RF-7800W Messages

12.1. RGI Polled Remote Position

RGI,UTC,LAT,LAT DIR,LON LON DIR,ALTITUDE,SPEED,HEADING,STAT

Field

Usage

Comments

RGI

Header for this message

UTC

UTC time

LAT

Ltitude

North / south

LON

Longitude

East West

ALT

Altitude

SPEED

Speed I km/h

HEAD

Heading, 0 - 359 degrees

STAT

Status (0=no fix, 1-GPS, 2=GPS and WAAS)

12.2. NMEA Type Messages

The

RF-7800W

sends and receives messages in the NMEA 0183 format. NMEA

is a standard protocol, used by GPS receivers to transmit data. NMEA output is

Summary of Contents for RF-7800W

Page 1: ...ny Confidential 1 Raveon Technologies Corp RV M9 VHF UHF GPS Transponder Modem Technical Manual Version D2 September 2012 Raveon Technologies Corporation 2320 Cousteau Court Vista CA 92081 www raveontech com ...

Page 2: ...Configuring the RF 7800W 12 6 1 Command Mode Overview 12 6 2 Setting a Parameter 12 6 3 Reading a Parameter 12 6 4 Restoring Factory Defaults 13 6 5 MODEM Commands 14 6 6 GPS Related Commands 17 6 7 Ethernet Related Commands 19 6 8 Factory Default Settings 20 6 9 Commands Shown in Help Menu 20 7 Setup and Initial Configuration 21 7 1 Programming Channels and Frequencies 22 7 2 Position Transmissio...

Page 3: ...ommands 33 10 5 Tune up and Alignment 35 Periodic Calibration 35 Center Frequency 35 TX Deviation 35 TX Modulation Balance 36 11 RF 7800W Diagnostic Provisions 37 11 1 Overview of Diagnostics 37 11 2 Reading the Diagnostic Information 37 11 3 Status and Statistics Command 37 12 RF 7800W Messages 38 12 1 RGI Polled Remote Position 38 12 2 NMEA Type Messages 38 12 3 PRAVE Raveon Proprietary Message ...

Page 4: ... with blasting operations turn off this radio or remove the DC power when you are near electrical blasting caps in a blasting area or in areas posted Turn off two way radio Obey all signs and instructions Potentially Explosive Atmospheres Turn off your radio prior to entering any area with a potentially explosive atmosphere Do not install this product for use in areas with potentially explosive at...

Page 5: ...aused by unauthorized modifications to this equipment Such modifications could void the user s authority to operate the equipment This product also complies with FCC Part 22 90 and Part 95 Subpart J of the FCC rules and regulations The Federal Communications Commission FCC with its action in ET Docket 93 62 has adopted a safety standard for human exposure to Radio Frequency RF electromagnetic ener...

Page 6: ...transponders 2 1 Features Transmissions include ID position speed heading voltage temperature input output status UTC time and proximity Ultra fast 3mS TX RX switching and 4 level GFSK modem allows truly Real Time tracking and status Outputs and accepts NMEA 0183 GLL TLL WPT GSV and PRAVE messages Built in TDMA channel access allowing truly real time tracking 200 transmission in 10 seconds Low pow...

Page 7: ...ond this limit shall be rejected terminated and closed by the RF 7800W By default all connection attempts require successful completion of a login authentication challenge sequence before an interactive session will be established The Primary IP address that the RF 7800Wis configured to use is set with the IPADD xxx xxx xxx xxx command There are three levels of radio modem access or session roles ...

Page 8: ...word The client must enter the password followed by a return Upon successful login authentication the unit will respond with Prompt where the prompt can be set with command PROMPT XXXXXX After three failed attempts to enter a correct username password combination the session will be terminated 3 5 Session Modes The RF 7800W s Ethernet interface supports different Session Modes per connection Comma...

Page 9: ...s in with this recovery IP then he or she will be prompted to reset to defaults to which they could type Y to erase as prompted If a telnet session is initiated on the System Recovery IP address the unit will immediately revert back to factory defaults The passwords and login text will be changed back to the defaults the primary IP address will revert back to factory default and the frequency will...

Page 10: ...ected telnet sessions 5 Transceiver RF 50 ohm N female GPS Connection TNC female Power Power Over Ethernet 25 watts maximum power consumption POE 802 3at Class 4 Operating Voltage Range 42V 57V 4 4 GPS and Transponder Specifications Number of channels 12 Horizontal accuracy 24 hour static 2 5m 50 5m 90 Acquisition 130dBm 50 40sec cold start 8sec hot start Sensitivity Tracking 150dBm Acquisition 14...

Page 11: ...lid green showing power is on When a user logs in the light will flash green with a 50 duty cycle Status LED TX This LED blinks red when the transmitter keys and is putting out RF power It blinks green during the reception of data or RF carrier or when there is RF energy on the radio channel GPS LED GPS Off GPS off in a mode such as MODE RX that does not require use of GPS Red Can t lock only acti...

Page 12: ... If the DATA role credentials are entered the corresponding telnet session will be in data Communication Mode In this case data entering the device via the telnet session is transmitted over the air Data received from another RF modem is output to the user via the telnet connection The following descriptions detail the Command Mode modem behavior 6 2 Setting a Parameter RF 7800W modem parameters m...

Page 13: ...f all commands type HELP CR 6 4 Restoring Factory Defaults The AT F command may be used to restore the unit back to the factory default condition The table in Section 6 5 lists all of the radio modem related commands Use this command with caution as it will erase all previously configured parameters It will cause the modem to revert back to the factory defaults as shown in the command table Factor...

Page 14: ...e channels in the MURS version Range See product data sheet N A Y ATHP Channel Number Select separate channels to minimize interference between multiple sets of modules operating in the same vicinity Range 1 6 1 N ATHS Show History Show a table of listing the most recent receptions and the IDs that the data was sent from No parameter Y ATIC Read Current Draw Read the current draw in mA Accuracy is...

Page 15: ...rial Number Reads and returns a unique serial number for thjs unit Read Only 1 999999999 unique Y ATSH Show Display the configuration of the modem This will return a page of ASCII characters showing the main configuration parameters none None Y ATSM Sleep Mode Operation Enable When set to 1 the DTR input line controls the RF 7800W s low power operation When set to 0 the RF 7800W will not go into L...

Page 16: ...If the parameter is 2 the configuration is output in strictly the format used to program another unit None 1 2 BAND Show display the radio band Displays the frequency band that the radio is configured for along with the upper and lower frequency in MHz BB is the band code lll is the lower frequency in MHz and uuu is the upper frequency in MHz None BB lll uuu N MODEL Read Model number Read the mode...

Page 17: ...horized reception Set it to 0 to disable security encryption of data 2 16 ASCII character s HARRIS N MODE System Mode Macro Parameters TX RX TXRX P TXRX S Sets TX mode RX mode TXRX Primary or Secondary mode TX RX TXRX P TXRX S TX Y NMEAOUT Enable Disable NMEA messages Configures the M9 to output standard NMEA messages GGA GLL RMC out its serial port NMEAOUT 0 disables the messages NMEAOUT 1 enable...

Page 18: ... for this transceiver to will no change if the ID of the device is changed Set SLOTNUM to 1 to force the Slot Number to be automatically set to the MYID of the radio This is the factory default setting 1 1 9999 Decimal number not hex N A By default the Slot Number is auto set to the MYID N SLOTTIME TDMA Slot duration Configure the width of a TDMA slot 50mS increments 50 1000 100 N TDMATIME Set rea...

Page 19: ...unit ADMIN role password 1 to 10 ASCII characters admin USERLOGIN User Role Login Name Get or set the unit USER role login name 1 to 10 ASCII characters user USERPWD User Role Password Get or set the unit USER role password 1 to 10 ASCII characters user DATALOGIN Data Role Login Name Get or set the unit DATA role login name 1 to 10 ASCII characters data DATAPWD Data Role Password Get or set the un...

Page 20: ... Radio channel 1frequency 460 X MHz GPS Mode 14 Polled with RGI command 6 9 Commands Shown in Help Menu The following commands show up when the HELP command is entered Most of the commands are actually hidden from the final user HELP EXIT ATL ATPO GPSDATA KEYPHRASE MODEL MAC ADMINLOGIN USERLOGIN DATALOGIN ADMINPWD USERPWD DATAPWD IPADD IPGATEWAY TCPPORT ETHRATE IPMASK MODE TFTP TFTPIP TFTPFN ...

Page 21: ...ly recommends that you test them first with the factory defaults and see how they work before reprogramming them In general the parameters you may want to modify will be ATFX Frequency for this channel Set to your frequency ATMY The individual ID of this unit Default is 0001 Number all of your RF 7800W transponders with a different MYID Raveon recommends sequentially numbering them starting at num...

Page 22: ...e for transmit and one for receive They may be different or they may be the same You may program any valid frequency into any channel number To program a channel perform the following steps 1 Connect your telnet client to the modem s port 23 and login using the ADMIN role credentials 2 Change to the channel you wish to program using the ATHP x command where x is the channel number The factory defa...

Page 23: ...ns that are in the Communication Mode formatted as configured with the OUTPUT x command By default the output format is 0 no position message sent out The position status messages that the RF 7800W is able to send out of its Communication Mode telnet sessions are None No position message output Output 0 disable the device from outputting any message when a position report is received PRAVE Raveon ...

Page 24: ...en you program your own security key phrase into your RF 7800W transponders write it down in a secure place This parameter cannot be read out of the RF 7800W If you forget what it is set to you will have to reset all the security key phrases in all of your RF 7800W transponders Use the KEYPHRASE command to set the key phrase For example to set the key phrase to Jkl53hhp type KEYPHRASE Jkl53hhp ent...

Page 25: ...or sending and receiving radio messages Refer to Section 10 2 for detailed explanation of the TDMA scheme The important point to understand is that for optimum efficiency in a RF 7800W system begin sequentially numbering the MYID of the RF 7800W transponders at ID 0001 The second RF 7800W should be ID 0002 and so on The RF 7800W transponders have internal clocks with 100 ticks per second They can ...

Page 26: ...he transfer i e can t find IP address of server or can t find filename specified on server The three LEDs on the front of the RF7800W are used to indicate status during the TFTP transfer The first light comes on when a TFTP transfer is initiated the second when the unit successfully connects to a server and the last when the process completes If there is an error the LEDs will light according to f...

Page 27: ...ce CLI If there is a problem with a TFTP transfer can t find server can t find filename etc the three LEDs will light as described above and a Telnet server is started with static IP 192 168 26 4 The user can then use any standard Telnet terminal program to access this server at 192 168 26 4 In order to see what is typed on the user side local echo must be enabled in the Telnet terminal program it...

Page 28: ...he list of parameters enter get and press enter Figure 3 get command From here the user will want to use the set tftp command to save the IP address of the TFTP server Then the user shall set the filename with the set image command Finally use the set boot script command to set the bootloader to run the pre programmed TFTP transfer script An example of setting these three parameters is shown below...

Page 29: ...of radio 192 168 26 4 IP gateway of radio 192 168 26 1 IP address of the TFTP server 192 168 26 9 From there the unit will initiate a TFTP transfer and reset automatically The user would need to setup a computer running a TFTP server program such as TFTP32 which can be found here http tftpd32 jounin net tftpd32_download html and clicking on v 4 00 tftpd32 standard edition zip 473 kB The user will ...

Page 30: ...o not interfere with each other1 For example one group could use IDs 1200 1299 and another group use IDs 1300 1399 When properly configured the two groups will not receive each other s signals A way to disable addressing altogether is set the Address Mask to 0000 ATMK 0000 command This tells the RF 7800W to ignore the address and receive every transmission For a unit to receive a message from anot...

Page 31: ...esses are identical the value of the mask is not important Notes This is the default configuration All units have address 0001 and all modems will talk to all other modems with address 0001 Example 2 a configuration that won t work Sending to Destination Address 1001 Receiving Unit Address 0001 Receiving Unit s Address Mask F000 Result No data will be received because the address do not match and ...

Page 32: ...ch RF 7800W may transmit The TDMA frame must be set long enough for all units to transmit For example if you have 5 RF 7800Ws and use 100mS TDMA slots then the TDMATIME should be set to 1 seconds The simplest way to set the TDMATIME is to make it equal to the TXRATE the rate you wish to report position The duration of a TDMA time slot is programmed into the RF 7800W with the SLOTTIME command If SL...

Page 33: ...cryption decryption processing Over the air rate Number of Modulation Levels Position Status Transmissio n Duration Suggest TDMA Slot time 4800bps R2 3 Default setting 2 70mS 100mS 9600bps R2 5 2 45mS 50mS No Encryption 70mS if encryption enabled 5142bps R2 7 2 65mS 100mS Step 5 Program the TDMATIME The TDMA time must be greater than the maximum number of vehicles the system will ever need to supp...

Page 34: ...e configuration Ping xxxx Ping another modem over the air Transmits a request to xxxx to see if xxxx can hear the sending station If it does it answers with a response transmission containing its ID and the signal strength of the reception ATST Display statistics of how the modem is working ATST 1 Display statistics of how the modem s GPS is working ...

Page 35: ...entering a U for up or a D for down U or D will change the value by one Use this trick carefully because it modifies the last R register that was read and it is easy to unintentionally modify the wrong register Periodic Calibration The only setting that may require adjustment is the center frequency After years of operation all crystals will age and change frequency slightly The ATR8 command is us...

Page 36: ...n oscilloscope The frequency response of the demodulated FM signal must be greater than 10Hz to 5kHz without any de emphasis 2 Transmit random data with the RF 7800W using the ATDT 1 command This command will cause the RF 7800W to automatically key up and send random data for one minute 3 Verify the DC center of the demodulated data is stable The random data should be randomly timed 1s and 0s and ...

Page 37: ... operation statistics that it maintains All statistics start counting at 0 The ATST 1 command can be used to reset all statistics back to 0 except the run time timers Other operation and configuration statistics are available using the ATST command with a parameter to specify the desired statistic The following table describes the various statistics available 11 3 Status and Statistics Command Com...

Page 38: ... RGI Header for this message 2 UTC UTC time 3 LAT Ltitude 4 NS North south 5 LON Longitude 6 EW East West 7 ALT Altitude 8 SPEED Speed I km h 9 HEAD Heading 0 359 degrees 10 STAT Status 0 no fix 1 GPS 2 GPS and WAAS 12 2 NMEA Type Messages The RF 7800W sends and receives messages in the NMEA 0183 format NMEA is a standard protocol used by GPS receivers to transmit data NMEA output is ...

Page 39: ...er computer programs that can process position and status information It is sent at 38 4K bytes second out the serial port Along with ID and position information it contains a host of other status information The length of this message may exceed he standard NMEA limit of 79 characters Any product or software that uses this message must take this into account Following is a list of the fields sent...

Page 40: ...due to pressing an alert button C Critical alert usually due to pressing and holding alert button I Impact alert V Vibration S Service required on product 17 Spare A spare field May be used for UTC date in the future Typically NULL 18 The NMEA end of message identifier 19 Checksum The NMEA 0183 checksum Example Sentence PRAVE 0001 0001 3308 9051 11713 1164 195348 1 10 168 31 13 3 3 83 0 0 66 This ...

Page 41: ...3 A 19 GPVTG 74 T 3 78 N 7 00 K 27 GPGLL 3308 7182 N 11713 7927 W 155913 A 14 GPVTG 56 T 2 70 N 5 00 K 2C GPGLL 3308 7224 N 11713 7891 W 155923 A 14 GPVTG 56 T 1 08 N 2 00 K 27 GPGLL 3308 7233 N 11713 7899 W 155933 A 1B GPVTG 0 T 0 00 N 0 00 K 1F GPGLL 3308 7219 N 11713 7902 W 155943 A 17 GPVTG 0 T 0 00 N 0 00 K 1F ...

Page 42: ...he Radio k damage during shipment l that the Product will be free from any claim for infringement of any patent trademark copyright or other proprietary right including trade secrets RAVEON TECHNOLOGIES INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING DIRECTLY OR INDIRECTLY OUT OF THE OWNERSHIP USE OR OPERATION OF THE RADIO REGARDLESS OF WHETHER SUCH DAMAGES ARE PRED...

Page 43: ...de a copy of the original sales receipt or invoice showing the date location and price of purchase Include a written description of the problem with the product a phone number and name of person who may be contacted regarding the problem and the address to where the product should be returned Products repaired under warranty will typically have their program memories erased and reset to factory de...

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