Raveon M7-GX Series User manual
Version C16. February 2013 Raveon Technologies Corporation
Company Confidential
2
Table of Contents
1. General Information about the RV-M7 ...........................................................4
1.1. Congratulations!.............................................................................................................................4
1.2. NOTICE.........................................................................................................................................4
1.3. Safety / Warning Information .........................................................................................................4
1.4. Safety Training information:...........................................................................................................5
1.5. FCC Compliance Information.........................................................................................................6
1.6. Additional Certifications .................................................................................................................6
1.7. Features.........................................................................................................................................7
2. Operation.......................................................................................................8
3. Specifications...............................................................................................11
3.1. RF And Performance Specifications............................................................................................11
3.2. General........................................................................................................................................ 11
3.3. User Input and Output Signals.....................................................................................................11
3.4. GPS and Transponder Specifications..........................................................................................11
3.5. Model Numbers ...........................................................................................................................11
4. Electrical Inputs and Outputs .......................................................................13
4.1. LEDs............................................................................................................................................13
4.2. DC Power ....................................................................................................................................13
4.3. RS-232/EIA232 Serial I/O Connector ..........................................................................................14
4.4. -WX weatherproof Version...........................................................................................................15
Power Cord.......................................................................................................................................... 15
RS-232 serial cable for –WX version...................................................................................................16
5. Configuring the RV-M7 GX ..........................................................................17
5.1. Overview......................................................................................................................................17
5.2. Command Mode..........................................................................................................................17
5.3. Password Protection....................................................................................................................17
5.4. Setting a Parameter..................................................................................................................... 18
5.5. Reading a Parameter................................................................................................................... 18
5.6. CONFIG Button ...........................................................................................................................18
5.7. Exiting the Command Mode......................................................................................................... 19
5.8. Restoring Factory Defaults ..........................................................................................................19
5.9. MODEM Commands....................................................................................................................21
5.10. GPS Related Commands............................................................................................................. 26
5.11. Factory –GX Default Settings ...................................................................................................... 28
6. Setup and Initial Configuration.....................................................................30
6.1. Programming Channels and Frequencies ...................................................................................31
6.2. GPS Operation Mode Configuration............................................................................................32
6.3. Position Transmission.................................................................................................................. 34
6.4. Set the Transmission Report rate................................................................................................ 34
6.5. Digital Inputs (Trigger Bits) .......................................................................................................... 36
6.6. Data Transmission.......................................................................................................................38
Serial Port Baud Rate..........................................................................................................................39
6.7. Data Reception............................................................................................................................39
Serial Port Data ...................................................................................................................................39
GPS Position and Status ..................................................................................................................... 39
6.8. Device Addressing.......................................................................................................................40
Security Key.........................................................................................................................................40
ID Addressing Basics...........................................................................................................................41
Time Slots............................................................................................................................................ 41
6.9. Local NMEA data from the internal GPS......................................................................................42
7. Installation....................................................................................................42
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8. Operation.....................................................................................................43
9. FCC Licensing Information...........................................................................45
10. Technical Information................................................................................46
10.1. Device Addressing.......................................................................................................................46
Addressing Basics ...............................................................................................................................46
Broadcast Transmissions..................................................................................................................... 47
The Address Mask...............................................................................................................................47
Addressing Examples:.........................................................................................................................47
10.2. Store-and-Forward Repeating .....................................................................................................48
10.3. Setting the Over-The-Air Data Rate.............................................................................................50
10.4. TDMA Overview...........................................................................................................................51
10.5. Configuring TDMA Operation....................................................................................................... 52
10.6. Debug Related Commands.......................................................................................................... 53
10.7. Tune-up and Alignment ...............................................................................................................54
Periodic Calibration.............................................................................................................................. 54
Center Frequency................................................................................................................................ 54
TX Deviation........................................................................................................................................54
TX Modulation Balance........................................................................................................................ 55
10.8. RS-232 Serial Port Options..........................................................................................................55
Flow Control......................................................................................................................................... 55
RX Carrier Detect ................................................................................................................................ 55
Busy-Channel Lock Out.......................................................................................................................56
11. RV-M7 Diagnostic Provisions....................................................................57
11.1. Overview of Diagnostics ..............................................................................................................57
11.2. Reading the Diagnostic Information.............................................................................................57
11.3. Status and Statistics Command................................................................................................... 57
11.4. ATST Command.......................................................................................................................... 58
11.5. ATST1 Command (GPS Statistics)............................................................................................. 58
11.6. ATST2 Command........................................................................................................................ 58
11.7. ATST3 Command........................................................................................................................ 59
11.8. ATST4 Command........................................................................................................................ 59
12. Antenna Information..................................................................................59
13. Troubleshooting.........................................................................................60
Symptom: Unit will not receive............................................................................................................ 60
Symptom: Unit will not transmit........................................................................................................... 60
Symptom: Receive light blinks, but no data is received......................................................................61
Symptom: Long delay before transmitting........................................................................................... 61
Symptom: Cannot enter Command Mode........................................................................................... 61
Symptom: Modem appears dead........................................................................................................62
Symptom: Repeater will not repeat.....................................................................................................62
Symptom: Transmits position, but no data..........................................................................................62
14. Mechanical................................................................................................63
15. RV-M7 GX Messages................................................................................64
15.1. $GPTLL Target Lat-Lon...............................................................................................................64
15.2. $GPGSV Satellites In View.........................................................................................................65
15.3. $GPWPL Waypoint Location ...................................................................................................... 65
15.4. $PRAVE Raveon Proprietary Message, Location-Status ...........................................................66
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1. General Information about the RV-M7
1.1. Congratulations!
Congratulations on your purchase of a RV-M7 GPS tracking radio –the most
advance UHF radio modem available today.
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.
1.2. NOTICE
Besides the fuse, there are no user-serviceable points inside this transceiver. All
service work must be referred to your Authorized Service Center or Raveon
Technologies Service Department.
1.3. Safety / Warning Information
WARNING - DO NOT operate theRV-M7-U radio modem when bystanders are
within 2 feet (.6 meters) of the antenna.
The RV-M7 radio should be installed in safe, protected and restricted environment.
While the RV-M7 does have an internal 3A fuse, there is no internal circuit breaker.
The radio should be connected with an external circuit breaker.
Blasting Caps and Blasting Areas
To avoid possible interference 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
atmospheres. Do not remove, install, or charge batteries in such areas. Sparks in
a potentially explosive atmosphere can cause an explosion or fire resulting in
bodily injury or even death.
Note: The areas with potentially explosive atmospheres referred to above include fueling areas
such as below decks on boats, fuel or chemical transfer or storage facilities, areas where the air
contains chemicals or particles, such as grain, dust or metal powders, and any other area where
you would normally be advised to turn off your vehicle engine. Areas with potentially explosive
atmospheres are often but not always posted.
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1.4. 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.
This radio is restricted to occupational use, work related operations only where the
radio operator must have the knowledge to control the exposure conditions of its
passengers and bystanders by maintaining the minimum separation distance of
following range. 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 model RV-M7-UC:
Radiated frequency and Distance
RV-M7-UC (450-480MHz 5 watts)
1.97 Feet (0.6 m)
FCC ID: SRS-RV-M7-UC
Raveon Technologies Corporation
For model RV-M7-VB
Radiated frequency and Distance
RV-M7-VB (150-174MHz 5 watts)
90cm
FCC ID: SRS-M7-VB
Raveon Technologies Corporation
For model RV-M7-VM:
Radiated frequency and Distance
RV-M7-VM 152MHz
60cm
FCC ID: SRS-M7-VM
Raveon Technologies Corporation
For vehicular roof top installation, the antenna must be placed in the center of the
roof.
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1.5. FCC Compliance Information
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, 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 energy emitted by FCC-certified equipment. This product meets
the uncontrolled environmental limits as stated in OET-65C (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.
1.6. Additional Certifications
*The following certifications are specific to models RV-M7-Vx:
Electromagnetic Compatibility and Radio Spectrum Matters (ERM):
ETSI EN 300 113-2 V1.4.2 (09) ETSI EN 301 440-2 V1.4.1 (10)
ETSI EN 301 489-1 V1.8.1 (08) ETSI EN 50 385 (02)
ETSI EN 301 489-3 V1.4.1 (02) ETSI EN 301 489-5 V1.3.1 (02)
European Automotive EMC Directive
2004/104/CE
Electrical Safety
EN 60950-1 :2006/A11 :2009
*The following certifications are specific to models RV-M7-VB-x:
Industry Canada
8386A-RVM7VB
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Overview
The RV-M7 GX GPS transponder is a rugged high-speed UHF data modem with a
built-in 12-channel GPS receiver. It has ½ to 5 watts of RF power output, and
operates as both a GPS transponder for tracking, and a radio modem for sending
and receiving data.
The RV-M7 GX may be configured for a number of different GPS applications,
including:
Transponder: Periodically transmit position and status. TX only.
RavTrack PC: Connect the RV-M7 GX to a personal computer running
RavTrack PC (or other PC software) to view a map showing
location, status, log movement, set alerts, and make reports from
the data.
Radar Display: Connect RV-M7 GX to a marine plotter or radar display, and
icons will appear on the display showing the location of all other
RV-M7 GX radios in the system.
GPS display: Connect RV-M7 GX to a hand-held or mobile GPS, and icons will
appear on the display showing the location of all other RV-M7
GX radios in the system.
TDMA Data: GPS position reporting may be enabled or disabled, but
additional data may be transmitted in the units TDMA time slot.
As well as sending position and status, the RV-M7 GX also has a radio modem
with integrated RS-232/422/485 interface.
For privacy and security, over-the air encryption is standard on every RV-M7 GX
radio. For network versatility, the RV-M7 GX incorporates a 16-bit identification
code, allowing up to 65,000 objects to be identified in one system. For wide-area
coverage, all RV-M7 GX transponders may be set to store-and-forward messages
from other RV-M7 GX transponders.
The RV-M7 GX is the easiest to set-up Automatic Vehicle Locations (AVL) system
available, and its re-programmability 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.
1.7. 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)
Very low current draw. As low as 25mA average.
16 bit addressing for up to 65,525 different unique IDs per channel.
Programmable proximity alert ( 1-9999 meters) and programmable position report rate (1-9999 seconds).
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2. Operation
The RV-M7 GX operates in a number of different “GPS Modes”, each mode
specific to the application it is being used in. The mode of operation is set with one
simple command, the GPS x command. The main GPS modes of operation are:
1)Transponder: Periodically transmits position and status over the UHF radio. Its
radio receiver is disabled reducing current draw. It cannot
receive messages, data, or locating information from other RV-
M7 GX transponders. 4800bps serial port.
2)RavTrack PC: Connect the RV-M7 GX to a personal computer running
RavTrack PC (or other PC software) to view a map showing
location, status, log movement, set alerts, and make reports from
the data. 38400bps serial port.
3)Radar Display: Connect RV-M7 GX to a marine plotter or radar display, and
icons will appear on the display showing the location of all other
RV-M7 GX radios in the system. 38400bps serial port.
4)GPS display: Connect RV-M7 GX to a hand-held or mobile GPS, and icons will
appear on the display showing the location of all other RV-M7
GX radios in the system. 4800bps serial port.
12)Mobile Data: Outputs WPL messages for position, and transmits and
receives data. Connect the M7 GX to a hand-held or mobile
GPS, and icons will appear on the display showing the location
of all other RV-M7 GX radios in the system. Data sent into the
RS-232 port will be transmitted over-the-air in the proper time-
slot, and may be received with other M7’s.
The different modes change the operation of the RV-M7 GX in a number of ways.
The GPS X command is a “macro” that sets a host of various parameters within the
M7 to configure it to operate in the desired way. The serial-port data rate is set, the
types of NMEA messages it wills send out or accept is set, as will as how the
internal UHF radio is used. The table below summarizes the 4 standard GPS
modes, as well as listing other specialized operation modes that the M7 GX
supports.
GPS mode 2 is the factory default mode.
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GPS
Mode
#
Common Usage
Serial Port
Baud Rate
Output
Messages
Description
GPS
0
M7 Radio Modem
Radio Modem. No GPS,
tracking, or TDMA
features.
Un-
changed
-
The RV-M7 GX will operate like an RV-M7 (no
GPS features).
GPS
1
Transponder
Simple tracking, AVL,
security.
4800
(local GSV,
GLL, RMC)
The RV-M7 GX will only transmit in this mode. The
receiver is off and GPS is turned off between
transmissions. This is the lowest-power
consuming mode, but it is send-only.
GPS
2
PC / Base Station
Proprietary interface for PC
applications that monitor
RV-M7 Transponders.
38400
$PRAVE
(local GSV,
GLL, RMC)
Connect the RV-M7 GX to a PC computer running
RavTrack PC (or a custom application), The
PRAVE message is in NMEA format, and provides
location and status information for every
transponder it receives.
GPS
3
Marine Radar
Displaying the location of
RV-M7 transponders on a
ship RADAR screen.
38400
$GPTLL
(local GSV,
GLL, RMC)
Connect the RV-M7 GX to a marine RADAR
display or plotter with a serial port, and waypoints
will appear on the GPS screen at the location of all
RV-M7 GX transponders within radio range. The
display must support the NMEA 0183 TLL
message.
GPS
4
GPS Display
Lowrance and Garmin
GPS displays. Mobile
displays.
4800
$GPWPL
(local GSV,
GLL, RMC)
Connect the RV-M7 GX to a mobile or hand-held
GPS with a serial port, and waypoints will appear
on the GPS screen at the location of all RV-M7
GX transponders within radio range.
GPS
5
-LX Receiver Only
Lowrance and Garmin
GPS displays. Mobile
displays.
38400
PRAVE
Connect the RV-M7 GX to a PC computer running
RavTrack PC (or a custom application), The
PRAVE message is in NMEA format. No
transmission capability. Internal GPS is disabled.
GPS
6
Mobile Data
Used to connect to 4800
baud MDT terminals.
4800
$GPWPL
(local GSV,
GLL, RMC)
Connect the RV-M7 GX to a mobile data terminal.
Positions are received in WPL format. Serial port
data capability is enabled.
GPS
7
Laser Rangefinder
Used to send PLTIT
rangefinder messages with
data.
4800
$PLTIT
(local GSV,
GLL, RMC)
Connect the RV-M7 GX to a laser range finder
such as the TruePulse360 to transmit target
information.
GPS
8
Personal Locator
Mode used for Personal
Locator applications.
38400
$PRAVE
(local GSV,
GLL, RMC)
Portable personal location use. Man-down feature
enabled. Do not connect to any I/O pins except
2,3 and 5.
GPS
9
TDMA Diagnostics
Displaying TDMA slot
diagnostic information
38400
$PRAVE
(local GSV,
GLL, RMC)
Factory use only. Used for timing analysis.
GPS
11
NMEA GPS and Data
Output local GPS NMEA
data plus send/receive
data like a modem.
38400
(local RMC)
Unit operates as a standard M7 radio modem with
no TDMA support, except it also outputs RMC
data from the internal GPS receiver every 30
seconds.
GPS
12
TDMA Data
Unit does not send
position, but will send data
using TDMA slot
assignments.
38400
$PRAVE
(local GSV,
GLL, RMC)
Used to transmit serial port data over the air in the
correct TDMA time slots. WMX protocol on serial
port. PRAVE position receptions. Unit does not
transmit its position out over the air.
GPS
13
GLL & VTG tracker
Unit sends position. Output
format is GLL & VTG, so
4800
GLL & VTG
of remote
device, not
the local.
Used to track one object. Every time it receives a
position report from a remote device, it outputs the
GLL and VTG sentences with the data from the
remote device.
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sending ID is not present.
Use to track one thing.
When the GPS x command is executed, it configures the following parameters, so
if your application requires any of these to be non-standard, you must issue the
command to modify them AFTER the GPS x command is issued.
Serial port output message format
Echo characters (ATEx command)
NMEAOUT
NMEARATE
Hardware flow control
Serial port baud rate
Data mute setting
WMX protocol
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3. Specifications
3.1. RF And Performance Specifications
Please consult the individual specification sheet for the RF and performance
specifications of your specific M7 GX transponder.
3.2. General
All measurements made per TIA-603-B. Certain bands are for export only. Consult the specification sheet for you
specific Raveon product for regulatory approval information.
Frequency: Model RV-M7-VA..............................................................................................136-155MHz
Model RV-M7-VB..............................................................................................150-174MHz
Model RV-M7-UC ..........................................................................................450 –480MHz
Model RV-M7-UB...........................................................................................419 –440MHz
Model RV-M7-UA...........................................................................................403 –434MHz
3.3. User Input and Output Signals
Serial port baud rates.................................................1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
Voltage levels ..................................................................RS-232, RS-422, and RS-485 compliance levels
Modem handshake signals......................................................................................RTS, CTS, DTR, DSR, CD
Transceiver RF ....................................................................................50 ohm BNC (TNC on –WX version)
GPS Connection .............................................................................SMA 50 ohm, 3.3V for amplified antenna
Power ............................................................................................................. B+ input and Ground
Digital Inputs ............................................................................................... 3 standard, 2 on –WX version
Standard Power Connector.........................................................Phoenix 18 36 18 9 ( Raveon P/N 1J165-3 )
3.4. 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 -142dBm
NMEA Output sentences..................................................................................WPL, TLL, GLL, GSV, PRAVE
Position report rate, programmable......................................................................................1 to 9999 seconds
Position report resolution...........................................................................................................0.0001 degrees
Voltage report resolution/accuracy.....................................................................................................0.1V/10%
Temperature resolution and accuracy (enclosure temperature)................................ 2 degrees C/4 degrees C
Number of digital inputs................................................................................................................................... 3
Velocity resolution and accuracy.........................................................................................1km / 1km per hour
GPS connector...........................................................................................................................................SMA
Active GPS antenna voltage (RV-M7 GX output voltage on SMA)................................. 3.3V, 20mA maximum
3.5. Model Numbers
The model number of the RV-M7 modem identifies its operating frequency band, rf
power level, and bandwidth. The models are:
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RV-M7-ab-c-oo where:
a= The band (V=136-174MHz, U=406-512MHz)
b= Sub band (A,B,C,…)
c = Channel Spacing (blank=12.5kHz, W=25kHz)
oo = Options (-GX for GPS, -WX for waterproof enclosure)
Other frequency bands, power levels, and channel spacing are available. Contact the
factory for your specific needs. Sub-Bands
Sub-Band Letter
VHF (RV-M7-V…)
UHF (RV-M7-U…)
A
132-150MHz
403-434MHz
B
150-174MHz
419-440MHz
C
450-480MHz
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4. Electrical Inputs and Outputs
The front panel of the RV-M7 GX modem has these features:
1. RF connector –Female TNC
2. Power LED
3. Status LED (Receive data = green, TX = red)
4. 9-Pin Serial I/O connector
5. DC Power Jack
The back panel of the RV-M7 GX modem has these features:
1. SMA GPS Connector
4.1. LEDs
The status LED visually show the current status of the radio.
Status LED (TX) This LED blinks red when the transmitter keys and is putting out
RF power. It blinks green upon the reception of data or RF carrier.
Power LED (PWR) This LED does 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.
When the GPS is trying to acquire satellite lock, the Status and Power LEDs will
alternately blink back and forth. This usually takes 10-20 seconds upon power-up
or loss of GPS satellite signal.
4.2. DC Power
DC power for the modem is connected to the 2-pin DC power input jack labeled DC
IN. Use the supplied cable to connect the DC power. The red wire is positive (+)
and the black wire is negative (-). 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. If
the power cable run is over 3 feet long, Raveon recommends at least 18 AWG wire
be used.
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The RV-M7 modem is supplied with a 6-foot DC power cable, Raveon part number
1C738-1.
Note: The RV-M7 has in internal 3-amp mini-fuse (automotive type) to protect it
and its power source against reverse voltage and serious hardware failures. In the
event it is blown due to a reverse voltage, it may be replaced by removing the
internal circuit board and replacing the fuse. This must be done by a qualified
electronic technician using ESD precautions.
4.3. RS-232/EIA232 Serial I/O Connector
The RS-232 9-pin serial I/O connector is a female 9-pin D-subminiature connector
having the following pins configuration. It is pinned out so that it may be plugged
directly into a computer or PC’s 9-pin COM port.
Front-view of DB-9 connector on modem (female)
Pin
Name
Dir
Function
Level / Specification
1
CD
out
Carrier detect
If enabled, indicates presence of carrier. Logical 0 (+
voltage on RS-232) 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.
2
RxD
out
Receive data
Data out of the modem.
3
TxD
in
Transmit data
or
IN2
Data into the modem.
Also used as digital input IN2 for exception reporting.
GND or floating for a 0, >3V for digital 1. If enabled for
digital inputs, the serial data entering this pin is ignored
(except in the command mode). Use the TRIGBITS
command to set which bits are used as inputs.
4
DTR
in
Data terminal
ready
or
IN0
Normally ignored by the RV-M7 modem. May control the
power-state of the modem in low-power mode if this
feature is enabled.
Also used as digital input IN0 for exception reporting.
GND or floating for a 0, >3V for digital 1. Use the
TRIGBITS command to set which bits are used as inputs.
5
GND
Ground
connection
Signal and power ground
6
DSR
out
Data Set
Ready
Normally is set to 0 when modem is powered on and
running. Modem sets to a 1 when in low-power mode.
7
RTS
in
Request to
send
or
IN1
Used to stop/start the flow of data coming out of the
modem TxD pin. 0 = OK to send, 1 = don’t send. Leave
disconnected if not used.
Also used as digital input IN1 for exception reporting.
GND or floating for a 0, >3V for digital 1. Use the
TRIGBITS command to set which bits are used as inputs.
8
CTS
out
Clear to send
Used to stop the flow of data going into the RxD pin from
the device connected to the RV-M7. 0 = OK to send, 1 =
don’t send. If the RV-M7 cannot accept more data, it will
negate this signal (set to a 1).
9
Power
In/out
DC power
User may supply the DC power to the modem on this pin.
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(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 9-pin RS-232 serial cable. To connect it to a modem, or 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.
4.4. -WX weatherproof Version
The –WX version of the product is functionally the same as the standard version,
but is IP65 rated for weather resistance. It has special water-resistant connectors,
and a sealed enclosure to keep moisture out of the unit.
The DC Input connector is a Bulgin PX0412/03P
The RS-232 I/O connector is a Hirose HR30-6R-6P(71)
The RF I/O connection is a TNC female.
Power Cord
The DC power cord uses a Bulgin connector, part number SA3349/1. Please note,
diagram 2 is only for use with WX-Z models.
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RS-232 serial cable for –WX version
The RS-232 serial cable uses at Hirose connector, part number HR30-6P-6S(71).
A) RS-422 Connector Pin-Out on –WX 5-Pin Circular Connector
If the RS422 option is installed in the M7 (-WX option), then the RS422 signals
are connected to the 5-pin water proof connector as shown below.
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5. Configuring the RV-M7 GX
5.1. Overview
The RS-232 serial port on the unit is used to send and receive data over the air, as
well as to configure the RF modem. In normal operation, the user sends serial 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. No special characters,
hardware control lines, or timing is required to operate the RV-M7 modem.
If the RV-M7 GX is used as a GPS transponder (GPS 1 mode), the serial port need
not be connected to anything. The internal GPS will initiate the transmissions of
position and status.
There is also a “Command Mode” used to program and configure the RV-M7 GX.
In the Command Mode, the RV-M7 GX modem accepts commands via the serial
port TxD pin. The commands can be used to change certain internal parameters of
the RV-M7 GX modem as well as to read-out the current configuration and
diagnostic statistics.
5.2. Command Mode
The RV-M7 GX modem may be put into a “Command Mode”, by entering a
sequence of three plus characters (+++). To keep the RV-M7 modem from
unintentionally 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 a pause 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 3-
character command sequence “+++”.
When the RV-M7 GX modem first enters the Command Mode, it sends the phrase
“RV-M7” out it serial port, and then an “OK” sequence. The “OK” sequence is a
sequence of 4 characters:
“O”, “K”, <CR>, and <LF> characters (<CR> = ASCII 0D, <LF> = ASCII 0A)
5.3. Password Protection
One M7 series products with firmware version C0 or higher, the user interface may
be password protected. If it is password protected, the radio will output a
“password:” prompt when entering the command mode.
When in the command mode, to enable the use of a password enter:
Password xxxx <CR>
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Where xxxx is the 2-7 digit password you would like to protect the user interface
with.
To disable password protection, enter:
Password 0 <CR>
Note: If the user-interface is password protected, and the Config button on the M7
is pressed, for security reasons, the encryption phrase is automatically erased.
5.4. Setting a Parameter
To set a parameter in the RV-M7 GX modem, enter the Command Mode as
described above. Then enter the proper command, a space, the parameter, and
then a carriage return. For Example, to set the destination address of the RV-M7
GX modem to 1234, enter the following command:
ATDT 1234 <CR>.
M7 series radios automatically save changed parameters to non-volatile EEPROM
memory whenever the parameter is changed.
5.5. 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”.
For example, if the user enters the command to read the RV-M7’s destination
address and its address was 1234, the user would issue the following command:
ATDT<cr>
and the modem will respond with:
1234 <CR> <LF>
OK <CR> <LF>
To get on-line help with a command, enter the command and put a question mark
in for the parameter. For example, to see what the ATDT command is used for,
type ATDT ?. The modem will respond by listing a brief description of the
command. To see a list of all commands, type HELP.
5.6. CONFIG Button
If certain parameters within the RV-M7 GX transponder are modified in a manner
that erroneously 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 RV-M7 to assist in this situation. This “CONFIG” button may
be pressed at any time, and forces the RV-M7 GX into a known operational state.
The CONFIG button is located inside the RV-M7 GX. Remove the rear cover,
exposing the circuit board. The button is in the center of the circuit board as shown
below.
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The default settings that the RV-M7 GX will revert to when the CONFIG button is
pressed are:
1. Serial port 9600 baud, 8 data bits 1 stop, no parity
2. Serial port flow control is off.
3. ATCT setting set to 60000 (60 second time-out)
4. Encryption KEYPHRASE is erased (if it was set to some KEYPHRASE and the user-
interface had password protection enabled)
Even though the serial baud rate reverts to 9600 baud when the CONFIG button is
pressed and the IO port is RS-232, it will revert back to the settings programmed
into the RV-M7 GX once the Command Mode is exited.
Important Note! If the user-interface is password protected, AND the Config
button on the M7 is pressed, for security reasons, the encryption phrase is
automatically erased.
5.7. Exiting the Command Mode
There are three ways to exit the command mode. They are:
1. ATCN Issuing the ATCN. The M7 radio will exit the command mode, and
begin normal operation.
2. EXIT Issuing the EXIT command. The M7 radio will exit the command mode,
and begin normal operation.
3. Time Out. After a pre-set amount of time (60 seconds is the factory default
time), the modem will automatically exit the Command Mode, and continue normal
operation. Changes will not automatically be saved. This time-out duration may be
set with the ATCT command.
5.8. Restoring Factory Defaults
The AT&F command may be used to restore the modem back to the factory-
default condition. The table in Section 5.9 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, “Factory Default” column. The only
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parameters that it does not restore to default are the radio calibration values R0-
R9, and RA.
The GPS&F command resets only the GPS related settings back to factory
defaults. The modem itself keeps its settings. The GPS commands that are reset
are shown in Section 5.10.
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