Raveon Technologies orporated RV-M5-UC RF Data Modem User Manual revised manual

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FireLine Da t a Radio Modem
T e ch n ic a l M an ua l
Version B7
November 2005
Raveon Technologies Corporation
2722 Loker Avenue West, Suite D
Carlsbad, CA 92010
www.raveontech.com
Table Of Contents
Safety / Warning Information ................................................................................3
Overview...............................................................................................................4
FCC Safety Compliance Statement ......................................................................4
Features................................................................................................................5
Specifications........................................................................................................6
General ...................................................................................................................................................... 6
Transmitter................................................................................................................................................. 6
Receiver..................................................................................................................................................... 6
User Input and Output Signals ................................................................................................................... 6
Front Panel ...........................................................................................................7
LEDs .......................................................................................................................................................... 7
DC Power................................................................................................................................................... 7
User I/O Connector .................................................................................................................................... 8
Using the FireLine Modem....................................................................................9
Setup.......................................................................................................................................................... 9
Addressing ................................................................................................................................................. 9
The Address Mask ................................................................................................................................... 10
Examples: ................................................................................................................................................ 11
Installation...........................................................................................................12
Serial Port Data and Handshaking......................................................................12
User Serial Port Commands ...............................................................................16
Overview .................................................................................................................................................. 16
Command Mode....................................................................................................................................... 16
Setting a Parameter ................................................................................................................................. 16
Reading a Parameter ............................................................................................................................... 17
CONFIG Button........................................................................................................................................ 17
Command Mode Commands ................................................................................................................... 18
Default Frequencies ................................................................................................................................. 20
Channel 5 451.800000
Itinerant Business Debug Related Commands ......................................... 21
Debug Related Commands...................................................................................................................... 21
Tune-up and Alignment.......................................................................................22
Center Frequency .................................................................................................................................... 22
TX Deviation............................................................................................................................................. 22
TX Modulation Balance ............................................................................................................................ 23
RX DC Offset Verification......................................................................................................................... 23
RX Carrier Detect..................................................................................................................................... 23
SkyLine Compatibility Mode................................................................................25
Antenna Information............................................................................................27
Internal Radio Connection ..................................................................................28
Appendix A. Null Modem Cables ......................................................................29
Troubleshooting ..................................................................................................31
Mechanical..........................................................................................................33
Limited One Year Warranty ................................................................................34
Congratulations!
Congratulations on your purchase of a FireLine radio modem.
Please take a few minutes to read this manual carefully. The information
presented here will allow you to derive maximum performance from your radio
modem. After reading it, keep the manual handy for quick reference, in case
questions arise later on.
NOTICE
There are no user-serviceable points inside this transceiver. All service jobs
must be referred to your Authorized Service Center or Raveon Technologies
Service Department.
Safety / Warning Information
WARNING - DO NOT operate theRV-M5-U radio modem when bystanders
are within 2 feet (.6 meters) of the antenna.
Safety Training information:
Antennas used for this transmitter must not exceed an antenna gain of 0 dBd.
The radio modem must be used in fixed vehicle-mount configurations or at
fixed base-station sites. It is not intended for portable applications.
Failure to observe these restrictions may result in exceeding the FCC RF
exposure limits.
Antenna Installation:
For rear deck trunk installation, the antenna must be located at least the
following range away from rear seat passengers and bystanders in order to
comply with the FCC RF exposure requirements.
For roof top installation, the antenna must be placed in the center of the roof.
Radiated frequency and Distance
RV-M5-UC
1.97 Feet (0.6 m)
FCC ID: SRS-RV-M5-UC
Raveon Technologies Corporation
Overview
The FireLine RF data radio is a rugged high-performance, high-speed narrowband data modem. It contains a receiver, a transmitter, and modem, creating
an easy-to-use transparent data radio link. The FireLine’s user interface is
asynchronous data into and out of the FireLine. Modem operation is virtually
transparent to the user and the configuration of the modem is via the user
serial port.
For privacy and network versatility, the FireLine incorporates a 16 bit
identification code. Its protocol also uses a 16bit CRC to guarantee the
integrity of the data. Perfect for SCADA and telemetry applications, the
FireLine can be used for simple point-to-point data communication
applications, or for more sophisticated point-to-multipoint, peer-to-peer, or
mesh networks.
Although the FireLine is the easiest to use modem on the market, its reprogrammability makes it extremely versatile. Most parameters within the
modem may be re-configured to optimize it for specialized operations,
extended range, or higher data throughput.
FCC Safety Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTE: The manufacturer is not responsible for any radio or TV interference
caused 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 and Part 90 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 energy emitted by FCC-certified equipment.
This product meets the uncontrolled environmental limits as stated in OET65C (01-01) when operated in accordance with the operation guidelines
described in this manual. Proper operation of this radio device according to
the instructions in this publication will result in user exposure substantially
below the FCC recommended limits.
This equipment generates, uses, and radiates radio frequency energy, and if
not installed and used in accordance with the instructions, may cause harmful
interference. However, there is no guarantee that interference will not occur. If
this equipment does cause interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is
encouraged to correct the interference by one of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician.
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Built-in radio transceiver with integrated modem
Easy to use. Transmit data in = Receive data out
Refarming-compliant modem 9600bps in a 12.5kHz channel
Small sized and rugged extruded aluminum enclosure.
16 bit addressing for up to 65,525 different unique device addresses per channel
2 watts of RF output Other RF power levels available upon request.
Operating temperature range of –30 to +60 degrees C
Easily configured using “AT” commands
User interface is asynchronous serial data for TX, RX, and configuration.
RS-232 serial input and output. Programmable baud rates up to 57600.
Programmable over-the-air data rates for long-range or high-speed
Low receive and standby current consumption
Synthesized receive and transmit frequencies
SkyLine compatibility mode for use in older Sonik radio systems.
Automatic AGC and polarity detection of received signals.
Internal data buffers to allow the serial port data rate to be different than the over-theair data rate.
Specifications
General
All measurements made per TIA-603-B
Frequency: Modem RV-M5-UC ........................................................................................ 450 – 480MHz
Model RV-M5-UA (export only) ..................................................................... 403 – 434MHz
Size (inches) ......................................................................................................... 3.0D X 3.76W X 1.40H
DC input voltage ......................................................................................................................... 8-16V DC
Average current draw, SLEEP mode ............................................................................................. <10mA
Typical current draw, receiving, over-the-air rates < 4800bps ........................................................ <80mA
Typical current draw, receiving, over-the-air rates >= 4800bps .................................................... <100mA
Current draw when transmitting data .....................................................<1.7A max, 1.3A typical at 2watts
Frequency stability....................................................................................................................... ±1.5ppm
Over-the-air baud rates (programmable) ................................................................800, 2400, 4800, 9600
Internal data buffers (transmit and receive) ............................................................................ >1000 bytes
Operating temperature range.................................................... -30ºC to +60ºC (-30ºC to +80ºC storage)
TX-RX and RX-TX turn-around time ............................................................................................... <10mS
Power on time to operational ........................................................................................................ <200mS
Transmitter
Maximum RF power output.......................................................................................................... 2.0 watts
Maximum duty cycle ....................................................................................................... 10% at full power
Maximum transmit frequency deviation.......................................................................................± 2.25kHz
Occupied bandwidth ........................................................................................................................11 kHz
TX spurious outputs ..................................................................................................................... < -70dBc
Receiver
Typical RX sensitivity (1% BER)
9600bps.................................................................................................................. -107dBm
4800bps.................................................................................................................. -110dBm
2400bps.................................................................................................................. -114dBm
800bps.................................................................................................................... -118dBm
RX selectivity .................................................................................................................................... -50dB
Spurious and image rejection ........................................................................................................... -60dB
RX intermodulation rejection.......................................................................................... -65dB at 2400bps
Conducted spurious emissions .................................................................................................... <-20dBm
User Input and Output Signals
Serial port baud rates.......................................................1200, 2400, 4800, 9600, 19200, 38400, 57600*
(57600* not usable when over-the-air baud rates is 4800 baud or less)
Maximum baud-rate error ............................................ <0.5% 38400bps and lower, <2.5% at 57600bps.
Voltage levels ...................................................................................................... RS-232 complaint levels
Modem handshake signals .............................................................................. RTS, CTS, DTR, DSR, CD
RF I/O
......................................................................................................................... 50 ohm BNC
Power
.............................................................................................................B+ input and Ground
Front Panel
The front panel of the FireLine modem has these features:
1. BNC RF connector
2. Transmit LED (TX)
3. Receive LED (RX)
4. Power LED (PWR)
5. 9-Pin serial I/O connector
6. DC Power Jack
LEDs
The three status LEDs visually show the current status of the radio.
Transmit LED (TX) This LED blinks red when the transmitter keys and is
putting out RF power.
Receive LED (RX) This LED glows red when there is an RF signal on the
radio’s receive frequency. This LED will indicate the presence of any signal,
even one from other sources or radios, data, or voice. If it glows steadily at
all times, there is probably some other user on the radio channel.
Power LED (PWR) This has a short blink, once every two seconds,
indicating to the user that the power to the modem is ON and the modem is
working. When the modem is in the command mode, this LED will blink on
and off, once per second. In the normal operating mode, this led will also
glow red when data is received over the air.
DC Power
DC power for the modem is connected to the 2-pin DC power input jack
labeled DC IN.
Its connection is optional, as the user may alternately apply power to Pin 9
and ground to pin 5 of the 9-pin I/O connector,.
User I/O Connector
The User I/O is via a female 9-p D-subminiature connector. The following
pins are defined.
Front-view of DB-9 connector on modem (female)
Pin #
Name
Dir
Function
Level / Specification
CD
out
Carrier detect
RxD
TxD
DTR
out
in
in
Receive data
Transmit data
Data terminal ready
GND
If enabled, indicates presence of carrier. 0
means carrier is present. If disabled, it is
asserted (0) whenever the modem is
operational, and not in the configuration
mode. It will be a 1 when the modem is in
the configuration mode.
Data out.
Data in.
Normally ignored by the FireLine modem. If
SLEEP mode is enabled, this line will put
modem to sleep if negated, or active mode
if it is asserted.
Signal and power ground
Normally is set to 0 when modem is
powered on.
Used to stop/start the flow of data coming
out of the modem TxD pin. 0 = OK to send,
1 = don’t send.
Used to stop the flow of data coming into
the RxD pin from the device connected to
the FireLine. 0 = OK to send, 1 = don’t
send.
User may supple the DC power to the
modem on this pin.
DSR
RTS
Ground connection
out
Data Set Ready
in
Request to send
out
CTS
Power
Clear to send
In/out
DC power (not Ring
signal)
Note: RS-232 signals use positive and negative voltages to represent digital 1s and 0s. A positive
voltage is a 0, and a negative voltage is a digital 1.
This pin-out allows it to be directly plugged into a computer’s 9-pin serial port
using a conventional serial cable. To connect it to a modem, or computer
peripheral that has a serial port, you will need a “null-modem” cable. See
Appendix A for more information on wiring a null-modem cable.
Using the FireLine Modem
Setup
1. Connect a DC power source to the DC IN connection on the front of the
modem.
2. Connect a good quality antenna, cut to the operating frequency, to the
BNC connector on the front of the modem. Use a good antenna, and
place is at high-above obstructions as possible.
3. Connect a computer terminal, or PC computer running HyperTerminal, to
the 9-pin I/O connector.
4. Program the modem’s operating frequency to your desired operating
frequency. Using the AT commands, change any of the default operating
parameters that must be modified. See the section “Serial Port
Commands” for information describing the various parameters that may
be modified in the modem. In most applications, the default settings from
the factory will work fine.
5. Connect your serial data device to the 9-pin connector on the front of the
modem. The default serial port settings are 9600bps, 8 data bits, 1 stop
bit, no parity.
The radio is now ready to use. Any serial data going into the modem will be
transmitted over the air, and any data received over the air will be sent out the
serial port.
Addressing
One of the more powerful aspects of the FireLine modem is its addressing
scheme. Each FireLine contains a 16 bit address, called its Unit Address,
and is represented as a 4 digit hexadecimal number. FireLine address may
be any number between 0000 and FFFF, which is 65,535 different addresses.
For those not familiar with hexadecimal numbers, a hexadecimal digit
represents a 4-bit binary pattern. There are 16 possible values
(0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,and F). These 16 values represent 4 bits of
information, thus 4 hexadecimal digits can represent 16 bits of information.
The hexadecimal numbers represent 4 bit data in the following way:
Hexadecimal Table
Hex #
Binary
0000
0001
0010
0011
Hex #
Binary
0100
0101
0110
0111
Hex #
Binary
1000
1001
1010
1011
Hex #
Binary
1100
1101
1110
1111
When communicating over the air, FireLine modems transmit their Unit
Address along with the data. Receiving modems check the received Unit
Address, and see if it matches their address. If it does match, the receiving
mdoem outputs the data it received via its serial port. If it does not match, the
receiving modem discards the data, and does not send it out the serial port.
The Address Mask
The reason to use hexadecimal digits to represent the unit address, is that
along with the Unit Address programmed into the FireLine, there is an
“Address Mask” programmed into it. The default mask is FFFF. The address
mask is also used to determine if a particular data transmission should be
received by the modem. For most applications, where one modem talks to
one modem, or where all modems in the system communicate with all other
modems in the system, the Address Mask should stay set to FFFF.
Only in systems where some modems should only talk to certain other
modems, will you want to change the address mask. Whenever data is
received over the air, the Unit Address of the device that sent the data is
logically “ANDed” with the Address Mask in the receiving modem. This is the
Effective Transmission Address. The receiving FireLine also ANDs its own
Unit Address with its Address Mask. The result is the effective Unit Address.
The Effective Unit Address is compared to the Effective Transmission
Address, and if the two are identical, the data will be received.
Note: Logically
1 AND 1 = 1,
0 AND 0 = 0,
1 AND 0 = 0,
0 AND 1 = 0
FireLine receives
data over-the-air
from Unit Address
xxxx
“AND” them
together
FireLine has
Unit Address
yyyy
FireLine has
Address Mask
zzzz
“AND” them
together
Compare the two
results from these
two ANDs
Output the data via
serial port if the two
results were
identical
One effect of this is that an address mask of 0000 will cause the FireLine
modem to received any data from any unit that transmits. The Unit Address
will effectively be ignores if the mask is set to 0000.
Examples:
Example 1 (default configuration)
Sending Unit Address = 1234
Receiving Unit Address = 1234
Receiving Unit’s Address Mask = FFFF
Result: Unit will receive the data, because the addresses identically match. When the
addresses are identical, the value of the mask is not important.
Notes: This is the default configuration. All units have address 1234, and all modems will
talk to all other modems with address 1234.
Example 2 (a configuration that won’t work)
Sending Unit Address = 1236
Receiving Unit Address = 1234
Receiving Unit’s Address Mask = FFFF
Result: No data will be received, because the address do not match, and the address
mask of FFFF requires that all digits in the address match. .
Example 3 (able to receive a data from a group, 1230 – 123F)
Sending Unit Address = 1236
Receiving Unit Address = 1234
Receiving Unit’s Address Mask = FFF0
Result: Data will be received. 1236 ANDed with FFF0 is 1230. 1234 ANDed with FFF0
is 1230. The results of the ANDing match, and thus the data will be received.
Example 4 (able to receive from a group, xx34 where xx is any two digits)
Sending Unit Address = 2234
Receiving Unit Address = 1234
Receiving Unit’s Address Mask = 00FF
Result: Data will be received. 2234 AND 00FF equals 0034. 1234 AND 00FF equals
0034, therefore they match. The results of the ANDing match, and thus the data will be
received.
Installation
1. Secure the FireLine modem using the four mounting holes on the side
flanges of the unit.
2. Connect a DC power source to the DC IN connection on the front of
the modem.
3. Connect a good quality antenna, cut to the operating frequency, to the
BNC connector on the front of the modem. Use a good antenna, and
place is at high-above obstructions as possible.
4. A separation distance of at least 20 centimeters must be maintained
between the transmitter's radiating structures and the body of the user
or nearby persons.
5. Connect a computer terminal, or PC computer running HyperTerminal,
to the 9-pin I/O connector.
6. If the antenna is mounted out doors, us a lighting arrestor in-line with
the antenna, and properly ground the antenna and the FireLine chassis
to an earth ground.
FCC Licensing Information
FireLine radio modems operate on radio frequencies that are regulated by the
Federal Communications Commission (FCC). In order to transmit on these
frequencies, you are required to have a license issued by the FCC.
Almost everyone engaged in public safety activities - as well as private
organizations, are required, to obtain a radio station license from the Federal
Communications Commission if they wish to use a radio transmitter.
The FCC will help you through the licensing process.
You can find the basic information you need to begin the process at the FCC
website. If you are engaged in public safety activities, you can go directly to:
http://wireless.fcc.gov/publicsafety
If you are a business, commercial, or institutional organization, you can go
directly to:
http://wireless.fcc.gov/services/ind&bus
In either case, you will be shown the regulations and the information you will
need to gather before you get started - your desired operating frequencies,
wideband/narrowband, antenna type and size, power/wattage, etc. You'll also
get information on how to obtain the necessary application forms - either in
hard-copy or electronic format - and how to proceed.
The FCC website also offers a list of Frequency Coordinators. These are
private organizations officially certified by the FCC to help you through the
process, and who in most cases will handle the actual filing of your
application. With few exceptions, you must apply for an FCC license through
a Frequency Coordinator. They are located throughout the country, making it
easy for you to find one that is familiar with radio operations in your area.
Serial Port Data and Handshaking
In computer terminology, the RF modem is considered a “Data
Communications Equipment” device, or DCE. The user’s hardware that the
modem is connected to is considered “Data Terminal Equipment”, or DTE.
Following is a description of how data and control is communicated over the
various serial port signals between the modem (DCE) and another device
(DTE) that the modem’s I/O port is connected to.
TxD (INPUT)
This line is used to transmit data from the DTE to the DCE. It is maintained at
a logical 1 state when nothing is transmitted. If Hardware Flow Control is
enabled in the modem, the terminal will start to transmit data to the modem
when a logical 1 is present on all of the following lines:
•
•
Clear To Send (output from modem)
Request to Send (output from the DTE)
RxD (OUTPUT)
This circuit is used to receive data from the DCE to the DTE. The modem will
start to transmit data to the DTE when a logical 1 is present on all of the
following lines:
•
•
Data Terminal Ready (reply that it is OK to send)
Data Set Ready (asserted by the modem)
RTS
On this line, the DTE will send a signal when it wants to receive data from the
FireLine modem. The FireLine modem will not output data unless this pin is
low, or “Flow Control” has been disabled in the modem set-up. When a DTE
(such as a PC or microcontroller) wants to stop the flow into it, it negates
RTS. Negated "Request To Send" (digital 1) means "request NOT to send to
me" (stop sending). When the DTE is ready for more bytes it asserts RTS
(digital 0) and the flow of bytes to it resumes. DCE equipment works the same
way but sends the stop signal out the CTS pin. Thus it's RTS/CTS flow control
using 2 lines. The user may turn this feature off or on, using the ATCH
command. The default is OFF. To turn it on, issue an ATCH 1 command.
CTS
This signal is an output from the FireLine, and it indicates the FireLine’s ability
to send more data. If the user tires to send more data into the FireLine than
the FireLine can transmit over the air, it will negate the signal on this pin. The
CTS may be asserted when the serial-port data rate is greater to or equal to
the over-the-air rate. For example, if the over-the-air data rate is set to 2400
baud, and the user is send data into the modem at 9600 baud, the modem
will negate the CTS signal once the FireLine’s internal data buffers become
full.
CD
On this line the modem indicates to the DTE that it has received a carrier
from a remote device. It will assert this signal any time there is a carrier
detected. The modem may be configured to assert this when an RF carrier is
detected (any on-channel RF, voice or data), assert it only when another RF
modem signal is detected, or always assert it. The operation of this line is
configured with the ATR1 command. The default is 1 (asserts when FireLine
data is detected on the radio receiver).
DTR
This line is an input to the FireLine. It is normally ignored because the default
configuration of the FireLine modem is to ignore this signal. If the DTR line is
enabled for use, using the ATK5 1 command, the DTR input line can be used
to put the FireLine modem into its SLEEP mode. With DTR enabled, anytime
the DTR line is a logic 0, the FireLine will be operating normally. With DTR
enabled, anytime the DTR line is a logic 1, the FireLine will go into a SLEEP
mode, drawing much less DC power.
User Serial Port Commands
Overview
The asynchronous serial portion the RF modem is used to send and receive
data over the air, as well as to configure the RF modem. In normal operation,
the user sends data into the TxD pin of the user port, and this data is
transmitted over the air. Received data from another RF modem is output to
the user via the RxD pin of the user port. This is the default operating
condition of the RF modem.
There also is a “Command Mode”. In the Command Mode, the FireLine
modem accepts commands via the TxD pin. The commands can be used to
change certain internal parameters of the FireLine modem.
Command Mode
The FireLine modem may be put into a “Command Mode”, by entering a
sequence of three plus characters (+++). To keep the FireLine modem from
accidentally entering the Command Mode because of the +++ pattern
occurring in a stream of data entering the modem, there must be a pause in
the data stream before the +++ as well as after the +++ is sent. If either
pause is missing, the modem will not enter the command mode.
Using serial communications software such as HypterTerminal, send the 3character command sequence “+++” while observing times of silence before
[BT (Silence Before Sequence) Command] and after [AT (Silence After
Sequence) Command] the command characters.
The default sequence for entering into AT Command Mode:
1. No characters sent for 1 second.
2. Input three (3) plus characters (“+++”) within one (1) second.
3. No characters sent for one (1) second.
When the FireLine modem first enters the Command Mode, it sends the
phrase “FireLine” out it serial port, and then an “OK” sequence. The “OK”
sequence is a sequence of 4 characters:
An “O”, “K”, , and  characters ( = ASCII 0D,
 = ASCII 0A)
Setting a Parameter
To set a parameter in the FireLine modem, enter the configuration mode as
described above. Then enter the proper AT command, a space, the
parameter, and then a carriage return. For Example, to set the address of the
FireLine modem to 1234, enter the following command:
ATDT 1234 .
Reading a Parameter
To read the value of a particular setting, issue the command, with no
parameter. The modem will return the value followed by an “OK”. The
modem’s OK response is:
The value in ASCII decimal format.
A   ( = ASCII 0D,  = ASCII 0A).
An “O”, “K”, , and  sequence.
For example, if the user enters the command to read the FireLine’s
modem address and its address was 1234, the user would issue the
following command:
ATDT
and the modem will respond with:
1234 
CONFIG Button
If certain parameters within the modem are modified in a manor that causes
the modem to cease functioning or if the user cannot enter the command
mode via the “+++” method described above, there is a small push button
internal to the FireLine modem to assist. This CONFIG button may be
pressed at any time, and forces the modem into a know operational state.
The CONFIG button is located inside the modem. Remove the rear cover,
exposing the two circuit boards. The button is in the center of the lower circuit
board as shown below.
The default setting that the modem will revert to when the CONFIG button are
pressed are:
1. Serial port 9600 baud, 8 data bits 1 stop, no parity
2. ATCT setting set to 60000 (60 second time-out)
Even though the serial baud rate reverts to 9600 baud when the CONFIG
button is pressed, it will revert back to the ATBD setting programmed into the
modem once the Command Mode is exited.
Command Mode Commands
AT
Command
Command Description
Parameters
AT
Silence AFTER Sequence - Sets period of silence
after the command sequence characters in mS.
Range:0 – 1000
(mS)
BD
Baud Rate – Sets serial com port baud rate (bps).
Over-the-air (throughput) baud rate is factory-set only.
If a PC’s serial baud rate is set higher than the fixed
over-the-air baud rate of the module, may need to be
implemented.
Range: 0 – 6
0 = 1200 bps
1 = 2400
2 = 4800
3 = 9600
4 = 19200
5 = 38400
6 = 57600
BT
Silence BEFORE Sequence – Sets period of silence
before the command sequence character in mS.
Range: 0-1000
mS
Configure Hardware Flow Control – Enable (1) or
disable (0) flow control.
Exit AT Command Mode – Exits module from AT
Command Mode and returns it to Idle Mode.
Parameters are not saved in EEPROM.
Time Out from AT Command Mode – If no valid
commands have been received within this time period
(in milliseconds), modem returns to normal operation
mode from Command mode.
1 = Enable
0 = Disable
CH
CN
CT
none
none
Range: 10060000mS
60000
Range: 0-FFFF
E0 , E1
Echo – Set Echo on (E1) or off (E0)
Range: 0 , 1
Display frequencies – Display all of the frequencies
programmed into all of the channel memories.
FT
Transmit Frequency – Program the transmit
frequency for this channel. Enter in Hz or in MHz.
FR
Receive Frequency – Program the receive frequency
for this channel. Enter in Hz or MHz.
GD
HP
JC2
JS2
Channel Number – Select separate channels to
minimize interference between multiple sets of
modules operating in the same vicinity.
Enable the LEDs – Disables the LEDs on the front of
the unit. This reduces some power consumption.
Disable the LEDs – Disables the LEDs on the front of
the unit. This reduces some power consumption.
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500
Unit Address – Sets unit address. Only modems with
the same address can communicate with each other.
Note, this parameter is entered in HEX format. Each
digit may be a 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,or F.
FX
500
DT
TX and RX Frequency – Program the receive and
transmit frequency for this channel. Enter in Hz or
MHz. Same as issuing an ATFR and an ATFT
command.
Receive Good Count – Number of RF packets
received successfully.
Factory
Default
1234
N/A
Range: See product data
sheet. For MURS
products, frequency cannot
be changed.
Range: See product data
sheet. For MURS
products, frequency cannot
be changed.
Range: See product data
sheet.
See product
data sheet.
See product
data sheet.
N/A
0 - 65525
Range: 1 - 5
none
none
Raveon Technologies Corp.
K2
K4
K7
MK
NB
NS
PE
MT
R0
Disable LEDs – When 1, LEDs are always off to
conserve power. When 0, LEDs work normally.
Disable DCD pin – When 1, DCD pin is always
asserted, regardless whether carrier is present. When
0, DCD works normally.
Carrier Detect – When 1, DCD pin operates with RF
carrier. When 0, DCD indicates presence of digital
data. Note K4 must be 0 for this setting to matter.
Address Mask – Configures local and global address
space. Each digit may be a
0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,or F. In most
applications, this is kept at FFFF.
RT
Range: 0000 - FFFF
FFFF
Packet Error Display – Shows statistics to compute
None (display PER)
1 = reset counters
2 = Stop PER display
None
Range: 0 – 1
0 = FireLine (standard)
1 = SkyLine (old Sonik)
packet-error rate. Displays Packets Per Minute (PPM)
and a running total.
Protocol Type - Selects the over-the-air protocol the
radio will use. All modems in the system must use
the same protocol type.
Symbol Peak Deviation – Set the peak FM deviation
of the transmit symbols. Note: This can be a negative
number to invert the modulation.
Preamble length – The number of bytes to send
over-the-air in the pre-amble
RS
Range: 1-2
R5
RE
0, 1
Stop Bits – Selects the number of stop bits.
R2
RA
Over-the-air bit rate - This is the data rate the radio
uses to send data over the air. All RF modems in
the network must use the same over-the-air baud
rate.
R9
0, 1
Range: 0 – 5
0 = none
1 = Odd
2 = Even
3 = Mark (1)
4 = Space (0)
R1
R8
Parity – Selects parity format. Settings 0-4 transfer 8bits over antenna port and generate the parity bit on
the RF receiving side.
Select CD pin output signal – CD may be RF carrier
detect, or modem data detect.
RT
0, 1
Radio Type – Select the type of radio module
installed within the modem. If this parameter is
chanted, you must fully recalibrate the modem.
Frequency Offset. Used to set the radio on the center of
the radio channel.
Modulation Balance.
Select RF CD output threshold – This value is the
RSSI threshold where the carrier detect is asserted.
Note: To force CD always on, set this to 0, and R1 to
RF Carrier Detect.
Default Configuration – Restores radio module
parameters (R0 – RA registers) to factory default
configuration.
Range: 0 – 1000
Range : 0, 1
2 = Always assert CD
1 = Data CD
0 = RF CD
Range:
0 = 800
1 = 1200
2 = 2400
3 = 4800
4 = 9600 4L
5 = 9600 2L
6 = 19200
7 = 5142
-100**
4**
Range: 1 - 255
Range: 1-9
2 = RV-M5-UC(DM3473)
3 = RV-M6-UC(DM3475)
(Varies based on
data rate and
radio type)
2**
Range: -500 to +500
0**
0-100
20**
Range : 0-999
300**
none
none
RSSI (Receive Signal Strength Indicator) – Returns
the signal level of last received packet.
none
Range: -120dBm to
-40dBm
none
Radio Type – Sets the type of radio module that is
integrated into the FireLine modem. If this is changed,
the modem must be re-calibrated.
1 = MURS
2 = DM3473
3 = DM3475
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2**
Raveon Technologies Corp.
SL
Serial Number – Reads and returns a unique module
serial number.
Read Only
1 - 65525
SH
Show – Display the configuration of the modem. This
will return a page of ASCII characters, showing the
main configuration parameters.
none
None
SV
Save – Save all the parameters to EEPROM. This
command must be used if changed parameters are to
be stored in non-volatile memory, and used next time
the modem is powered up. Modem exits configuration
mode after this command is executed.
none
None
Transmit Random Data – When issued, the modem
will begin sending random data. Entering a  will
terminate the transmission.
0 = Go back to normal
1 = Random
2 = Hop up/dn one channel
3 = Force PLL to fast
4 = TX all 0s
5 = TX all 1s
6 = Test Points ON
7 = Transmit CW
8 = Transmit 1010101…
Serial Port time out – Number of uS of no activity
before transmitting.
Range: 0 - 5000000
TD
TM
TT
VR
&F
Max Packet Size – Set the maximum number of bytes
in an over-the-air packet.
Firmware Version – Returns firmware version
currently loaded on the module.
Restore Factory – Restore the factory default values.
This command will not erase the calibration values in
the flash unless the parameter is the three-digit string
“123”. After this command executes, the modem will
still be in the CONFIG mode.
unique
20000
240
1 - 512
Read Only, 3
characters
none
None to maintain
calibration, “123” to
erase everything.
none
** indicates values that are calibrated in the factory and are unit-specific. If the
“Radio Type” is changed, these will need to be re-calibrated.
Default Frequencies
Channel 1 464.500000
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Raveon Technologies Corp.
Debug Related Commands
Testing
(Must be in command mode to test. Enter +++ at the keyboard to put unit into config/test mode.)
ATTD x
Various transmit test routines.
0 = Go back to normal mode. Stops the test.
1 = Random data transmit.
2 = Hop up/down one channel
3 = Force PLL to fast lock mode
4 = Transmit all 0s
5 = Transmit all 1s
6 = Enable the test points on the PCB.
7 = Transmit CW on center of channel
SHOW
Display an overview of the configuration.
STAT
Display statistics of how the modem is working.
AT$5
Display RSSI. It will scroll the reading until another character
comes in the serial port.
Packet Counter
ATPE 0
Reset the packet counters back to zero
ATPE 1
Begin counting and displaying the packet counters every minute
ATPE 2
Stop counting and displaying packet counters
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Raveon Technologies Corp.
Tune-up and Alignment
Do not key the transmitter for more than 30
seconds out of every 300 seconds. The
transmitter is rated at 10% duty cycle maximum.
The following table lists the parameters in the modem that are calibrated at
the factory. Calibration values are stored in registers R0 – R9. The FireLine
radio modem has the capability of incorporating a variety of different radios
modules. Each different radio model is considered a different “radio type”.
The radio type is read and set with the ATR6 command.
Once you read a register using an ATRx command, you may modify its value
by 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 value, and it is easy to unintentionally modify the wrong register.
Typical Register Settings
R Register
R0
R5
R8
R9
Function
Radio Type 2
(DM3473 Module)
Radio Type 3
(DM3475 Module)
Peak Deviation
-100
Preamble Length
Frequency Offset
Modulation Balance
20
120
20
Center Frequency
1. Set the VCO balance setting to its nominal value. Use this command:
ATR9 20
2. Key the transmitter with CW output using this command:
ATTD 7
3. The modem will now put out CW on the center of the channel.
4. Read the frequency offset with the ATR8 command.
5. Adjust the frequency to the center of the channel with the ATR8
command. You can use the “U” key and the “D” key to change the
settings up and down one value in real time.
6. Set the deviation back to the value you read in step 1, using the ATR0
command.
TX Deviation
1. Switch to channel 1.
2. Key the transmitter into a 50 ohm load using the ATTD 4 command.
The unit will now transmit, and send a digital 0 continuously. This
should be -2.0kHz low in frequency.
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Raveon Technologies Corp.
3. Adjust the deviation register setting so that the frequency is exactly
2.0kHz low. The deviation is set with a digital adjustment. Use the
ATR0 command to read or set the value. This value is negative, and is
typically around -200.
TX Modulation Balance
1. Transmit an alternating 10101.. pattern using the ATTD 8 command.
2. While monitoring the modulation using an FM demodulator, adjust the
balance digital pot value, by setting it with the ATR9 xx command. xx
= 0 - 127, and is typically around 40 for good modulation and a
deviation of 2.0kHz.
3. Transmit random data, using the ATDT 1 command. Verify the DC
center of the demodulated data is stable.
4. If necessary, change the ATR9 setting so that the long data bit have
the same amplitude and DC value as the shorter ones.
RX DC Offset Verification
To verify that the DC center of the received signal is near the nominal value,
perform the following steps:
1. Generate a test signal, 1kHz tone, 1.5kHz deviation, on the receive
frequency. Connect the signal generator to the antenna input. Set the RF
level to -90dBm.
2. Measure the average voltage at TPRX1 on the modem circuit board.
3. The DC voltage should be between 1.0 and 2.0 volts, and the p-p voltage
of the sine wave should be greater than 50mV and less than 2 volts.
RX Carrier Detect
The DCD signal from the modem may be generated by detection of RF, using
an internal signal called RSSI (Receive Signal Strength Indication). The RSSI
signal is an analog signal representing the strength of the RF carrier. It is
compared with a pre-set value, and if it is above this value, Carrier Detect is
asserted. The pre-set value may be change with the ATRA command. To
set it, perform the following steps:
1. Generate a test signal, 1kHz tone, 1.5kHz deviation, on the receive
frequency. Connect the signal generator to the antenna input. Turn the
RF level off.
2. Watch the RSSI value by issuing the AT$5 command. The current
reading will be sent out the serial port.
3. Adjust the RF level to a point where you would like the RSSI to trigger the
CD signal. This is factory-set to -115dBm.
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Raveon Technologies Corp.
4. Send the ATRA nnn command. Set nnn to be equal to the RSSI setting
you would like the CD signal to trip at. The BUSY LED will also indicate
an RF carrier when the RF carrier is above the threshold set with the
ATRA command.
5. Generate an RF signal on-channel with a level of -115dBm. Verify the
Power/BUSY LED stays on. If it does not, repeat step 4, adjusting in
increments of 10.
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Raveon Technologies Corp.
SkyLine Compatibility Mode
General
The FireLine RF modem has built-in compatibility with a radio modem made
by Sonik Technologies, Vytek Wireless, and Cal Amp called the SkyLine. In
most applications, Raveon’s FireLine modem can communicate with SkyLine
modems, provided the FireLine is properly configured.
Configuring FireLine to Communicate with a SkyLine
To configure the FireLine modem to talk to an old SkyLine modem, the user
must configure the FireLine with these commands:
ATMT 1
This command tells the FireLine modem to use a protocol that is
compatible with the FireLine. Note: ATMT 0 sets it back to the
FireLine mode.
ATR2 7
This command tells the FireLine modem to operate with an overthe-air baud rate of 5124 bits per second. This is the baud-rate of
all narrow-band (12.5Khz spaced) SkyLine radio modems.
Wide-band SkyLine radios operated at 9600 baud over the air.
The command to set the FireLine to 9600 baud over the air is
ATR2 5.
ATR5 6
This command tells the FireLine modem to send 6 bytes of preamble before every transmission.
MYID 1234
The MYID of the FireLine modem is set with the ATDT command
or the MYID command. The default MYID of the SkyLine was
1234.
TOID FFFF
The TOID of the FireLine modem is set with the ATMK command
or the TOID command. The default TOID of the SkyLine was
FFFF (broadcast address).
A quick-configure command is included in the FireLine, to allow it to be easily
switch to the FireLine mode. The command is “SKYLINE”. When in the
configuration mode, enter SKYLINE, and the modem will reconfigure itself as
a narrow-band SkyLine modem, with TOID = FFFF, MYID=1234, 80 byte
packets, 20mS serial port time out, channel 1 frequency, over-the-air baud
rate 5142.
SkyLine Compatibility Notes
The TOID and the MYID of the FireLine modem will both be the same Module
Address. If the TOID from a SkyLine transmitted packet matches the Module
Address of the FireLine, the FireLine will receive the data. Just as in the
SkyLine, the FireLine will use the FF character as a wild-card address filter.
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Raveon Technologies Corp.
Certain features of the SkyLine modem are not currently implemented in the
FireLine modem. They are:
Repeater Function
No store and forward repeating is implemented.
Retransmission
If the SkyLine user enabled the ACKS, the FireLine
will not send the ACK.
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Raveon Technologies Corp.
Antenna Information
Key to a successful installation is the choice and installation of a good
antenna system. A good quality antenna can more than double the range of
a radio system. Properly locating the antenna is vital to creating a quality
radio link, and a poor installation can decrease the range of the system by as
much at 90%.
Use these guidelines to evaluate your antenna system design, and be sure
contact a quality radio communication equipment distributor such as Talley
Electronics (http://www.talleycom.com ) to help choose the proper antenna for
your system.
To increase your communications range, located the antenna high as
needed, practical, safe, and allowed by your license. On fixed base-station
applications, you may utilize an antenna with gain. Note: The maximum
Permissible Exposure (MPE) for this product was computed using a 0dB gain
antenna, and must be recalculated if a gain antenna is used.
Height
Try to locate the antenna as high above obstructions, vehicle, and buildings
as possible. UHF radio channels require a clear “line-of-sight” between the
transmitter and the receiver. Radio waves will penetrate buildings, and
reflect off and around obstacles, but the fewer obstacles between stations
the better the signal quality.
Gain
Antennas are specified by their gain. They actually do not have gain, but
rather they can increase the strength of a signal in certain directions, at the
expense of attenuating signals from other directions. Gain antennas always
have “patterns” of gain. It is important you understand the pattern of your
antenna. Omni directional antennas will receive from almost any angle, 360
degrees around them.
Omni Antenna
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Raveon Technologies Corp.
Internal Radio Connection
Internal to the FireLine, the modem circuit board interfaces to a radio
transceiver module via a 14 pin single in-line connector. The following table
describes the function of each pin.
Pin #
10
11
12
13
14
Function
System ground
+7.5V regulated output, ±5%. 1.5amp maximum current source.
+7.5V transmit, ±5%. 100mA maximum current source.
RX ON. +5.0V in RX mode 0V TX mode. 10mA maximum current
source.
Radio ON. +5.0V DC to radio. Digital output. 10mA maximum
current source.
Transmit modulation. 2.5V DC RX, 2.5V DC with 2V p-p Gaussian
filtered 9600bps data during transmit.
Synthesizer lock detect input. Low=unlocked. High = locked.
PLL enable signal. Latch enable signal for serial interface to PLL.
PLL data signal. Data to PLL chip via three wire interface, pins 8,9,
and 10.
PLL clock for three wire interface.
No connect
RSSI input from radio. Optional input signal.
Receiver discriminator input from radio. On-board AGC for signals
with amplitude of .1V-2Vp-p and a DC bias of 1V-2.5V.
Modulation balance output. Adjustable DC voltage, set with the
ATR9 command.
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Raveon Technologies Corp.
Appendix A. Null Modem Cables
Null modem without handshaking
How to use the handshaking lines in a null modem configuration? The simplest
way is to don't use them at all. In that situation, only the data lines and signal
ground are cross connected in the null modem communication cable. All other
pins have no connection. An example of such a null modem cable without
handshaking can be seen in the figure below.
Simple null modem without handshaking
(DB-9 Female shown. Same wiring for male-to-male cable)
Connector 1
Connector 2
Function
Rx
Tx
Tx
Rx
Signal ground
Compatibility issues
There is a problem, if either of the two devices checks the DSR or CD inputs.
These signals normally define the ability of the other side to communicate. As
they are not connected, their signal level will never go high. This might cause
a problem.
The same holds for the RTS/CTS handshaking sequence. If the software on
both sides is well structured, the RTS output is set high and then a waiting
cycle is started until a ready signal is received on the CTS line. This causes
the software to hang because no physical connection is present to either CTS
line to make this possible. The only type of communication which is allowed
on such a null modem line is data-only traffic on the cross connected Rx/Tx
lines.
Null modem with full handshaking
In this null modem cable, seven wires are present. The cable is shown in the
following figure.
Null modem with full handshaking
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Raveon Technologies Corp.
(DB-9 Female shown. Same wiring for male-to-male cable)
Connector 1
Connector 2
Function
Rx
Tx
Tx
Rx
DTR
DSR
Signal ground
DSR
DTR
RTS
CTS
CTS
RTS
Compatibility issues
The null modem cable with full handshaking does not permit the older way of
flow control to take place. The main incompatibility is the cross connection of
the RTS and CTS pins. Originally, these pins are used for a question/answer
type of flow control. When the full handshaking null modem cable is used,
there is no request anymore. The lines are purely used for telling the other
side if communication is possible.
The main advantage of this cable is, that there are two signaling lines in each
direction. Both the RTS and DTR outputs can be used to send flow control
information to the other device. This makes it possible to achieve high
communication speeds with this type of null modem cable, provided that the
system has been designed for it.
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Raveon Technologies Corp.
Troubleshooting
Symptom: Unit will not receive
Solution #1. Verify that the modem is on the correct RF channel. If it is, the RX LED
should blink every time another modem tries to transmit to it. If the RX LED does not blink
when it should be receiving, it is on the wrong RF frequency.
Solution #2. If the RX LED blinks, verify that the Unit Address of the sending modem
matches the unit address of the receiving modem. If this is OK, verify that the over-the-air
baud rate of all modems is the same (ATR2 command).
Soultion #3. If the addresses match, verify that the RTS signal is asserted. The FireLine
will not output data if the RTS signal on the DB-9 I/O connector is not asserted. If the user’s
hardware cannot assert this line, disable hardware flow control in the FireLine modem, using
the ATCH 0 command.
Solution #4. The protocol type must be correct. The default type is 0 (FireLine type). If
one unit is using protocol type 1, and the other type 0, they will not communicate. All
modems must have the same protocol type. This is set with the ATMT command.
Symptom: Unit will not transmit
Solution #1. Verify that CTS is wired. Some devices that could be connected to the
FireLine will require the CTS signal to be asserted. The FireLine does assert this signal, but
if the wire is not connected, you device may not be outputting data to the FireLine. If the TX
LED blinks, the FireLine is transmitting data. Every time data enters the modem, the TX LED
should blink
Solution #2. Verify that serial port timeout is OK. The ATG0 command sets the number
of microseconds that the FireLine will look for in the serial input data stream. If a pause
greater than this value happens, the modem will transmit. If the ATG0 paramter is set very
large, say 2000000, this means 2 seconds, and the modem may simply be waiting a long
time
Symptom: Long delay before transmitting
Solution #1. Verify that serial port timeout is OK. The ATG0 command sets the number
of microseconds that the FireLine will look for in the serial input data stream. If a pause
greater than this value happens, the modem will transmit. If the ATG0 parameter is set very
large, say 2000000, this means 2 seconds, and the modem may simply be waiting a long
time. Typical settings for this parameter are 20000 (20mS).
Symptom: Modified parameters are lost at power-up
Solution #1. Issue an ATSV command. After any parameter is modified, the modem will
operate with the new setting, but unless the ATSV command is issued, it will revert to the old
setting upon turning power off and back on again. The ATSV command saves all parameters
into EEPROM memory, and these saved parameters are restored upon power up.
Symptom: Cannot enter Command Mode
Solution #1. Verify the serial port baud rate. This is difficult if it is set wrong, because you
cannot enter the command mode to check it. Try all possible baud rates, and see if one of
them works with the modem. Alternately, remove the rear cover of the modem, and press the
CONFIG button. This will force the modem into the Command Mode, as well as set the serial
port to 9600 baud, 8 data bits, one stop, and no parity. If the baud-rate was OK, verify the
AT, BT and CT times, that they are long enough for you to enter the +++ string.
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Raveon Technologies Corp.
Solution #2. Handshaking. You may have hardware handshaking enabled on your
terminal program, but the hardware or cable may not support it. Disable hardware
handshaking on your terminal program to verify this is the issue.
Symptom: Modem appears dead.
Solution #1. Verify the power is on. When the modem has good DC power, the PWR
LED will blink once per second. If it is not blinking, either the modem does not have power,
the modem is broken, or the LEDs have been disabled via the ATJS2 command.
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Raveon Technologies Corp.
Mechanical
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Raveon Technologies Corp.
Limited One Year Warranty
If within one year from date of purchase, this product fails due to a defect in material or
workmanship, Raveon Technologies, Incorporated will repair or replace it, at Raveon’s sole
discretion. This warranty is extended to the original consumer purchaser only and is not
transferable.
This warranty does not apply to: (a) product damage caused by accident, dropping or abuse
in handling, acts of God or any negligent use; (b) units which have been subject to
unauthorized repair, opened, taken apart or otherwise modified; (c) units not used in
accordance with instructions; (d) damages exceeding the cost of the product; (e) batteries; (f)
the finish on any portion of the product, such as surface and/or weathering, as this is
considered normal wear and tear; (g) transit damage, initial installation costs, removal costs,
or reinstallation costs; (h) damage due to lighting, floods, fire, or earthquakes.
RAVEON TECHNOLOGIES INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY IS IN LIEU OF
ALL OTHER EXPRESS OR IMPLIED WARRANTIES. ALL IMPLIED WARRANTIES,
INCLUDING THE WARRANTY OF MERCHANTABILITY AND THE WARRANTY OF
FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST ONLY AS
CONTAINED IN THIS
LIMITED WARRANTY, AND SHALL BE OF THE SAME DURATION AS THE WARRANTY
PERIOD STATED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON THE
DURATION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY
TO YOU.
This warranty gives you specific legal rights and you may also have other rights which vary
from state to state.
Warranty service is available by mailing postage prepaid to:
Raveon Technologies Corporation
2722 Loker Avenue West
Suite D
Carlsbad, CA 92024
To obtain warranty service, include 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 default settings.
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Raveon Technologies Corp.

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