RV-M8-UC DART 4 50-4 7 0MH z D ata Mo dem Te c hn ical Ma nu al Version A2 Feb 2015 Raveon Technologies Corporation 2320 Cousteau Ct. Vista, CA 92081 www.raveon.com Company Confidential 1 Raveon Technologies Corp.
Table of Contents 1. General Information about the RV-M8-UC .................................................... 3 1.1. 1.2. 1.3. 1.4. 2. Congratulations! ............................................................................................................................. 3 NOTICE ......................................................................................................................................... 3 Safety / Warning Information ..................................................
1. General Information about the RV-M8-UC 1.1. Congratulations! Congratulations on your purchase of a RV-M8-UC OEM radio. 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 There are no user-serviceable points inside this transceiver.
FCC MPE Regulations: WARNING: It is the responsibility of the user to guarantee compliance with the FCC MPE regulations when operating this device in a way other than described in this manual.
2. Overview The RV-M8-UC RF DART compliant Data radio modem is capable of high-speed narrowband data communications. It contains a receiver, a transmitter, and modem, creating an easy-to-use transparent data radio link. The built-in DART protocol is compatible with Raveon’s DART data radio protocol. (www.raveon.com/DART ) This radio modem is not compatible with Raveon’s M7 series of data radio modems. The RV-M8-UC ’s user interface is asynchronous digital data into and out of the RV-M8-UC .
2.2. Firmware Updating The RV-M8-UC is a software based radio and modem. There are times an existing unit needs to get updated with a new feature, and this can often be done by loading the new firmware into the older radio modem. In firmware program called the “Boot Loader” is permanently installed inside the RV-M8-UC ’s microcontroller. During power up, it checks to see if the user wants to update the application program in the microcontroller. Company Confidential 6 Raveon Technologies Corp.
Specifications 2.3. General Model Number, transceiver:............................................................. RV-M8-UC -X RF Power Output ............................................................................... 1.0W – 5.0 W (programmable) IF Bandwidth ...................................................................................... 12.5kHz standard, 25kHz optional (-W) Serial Port Baud Rates ...................................................................... 1.2k, 2.4k, 4.8k, 9.6k, 19.
Serial connector type ................................................................................................ DB9 RS 232 serial IO Voltage Levels ...................................................................................................... RS232 RX and TX data ......................................................................................................... Transparent Async Word length .................................................................................................
3. Electrical Inputs and Outputs 3.1. 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.
3.2. GPS (-GX option) GPS receiver for position tracking utilizes a MAX-7 GPS receiver. MAX 7 Product description The MAX-7 series is the newest family of standalone GPS/GNSS modules from u-blox. With the exceptional performance of the u-blox 7 multi-GNSS (GPS, GLONASS, Galileo, QZSS and SBAS) engine, the MAX-7 series delivers high sensitivity and minimal acquisition times in the ultra compact MAX form factor. The MAX-7 series provides maximum sensitivity while maintaining low system power.
4. User Serial Port Commands 4.1. Overview The 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 IO connector, 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 IO connector. This is the default operating condition of the RF modem.
4.3. Setting a Parameter To set a parameter in the RV-M8-UC modem, enter the Command 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 RV-M8-UC modem to 1234, enter the following command: ATDT 1234 Once a Parameter is changed, the modem will begin using the new parameter and the new parameter is saved to non-volatile. 4.4.
cover, exposing the two circuit boards. The button is in the front edge of the radio module’s circuit board. The default settings that the modem will revert to when the CONFIG button is pressed are: 1. Serial port 9600 baud, 8 data bits 1 stop, no parity 2. ATCT setting set to 60000 (60 second time-out) 3. Serial port on the front of the unit in RS232 mode, 9600bps, N/8/1.
5. Command Mode Commands 5.1. General Common Commands These commands apply to the general configuration of the RV-M8-UC, and are applicable in both the data modem mode and paging mode. Command Command Description Parameters Factory Default Silence AFTER Sequence - Sets period of silence after the command sequence characters in mS. Range:0 – 1000 (mS) ATBD Baud Rate – Sets serial com port baud rate (bps). Type the range index (0-7) or the actual desired baud rate.
issuing an ATFR and an ATFT command. The frequency will automatically be saved in non-volatile memory (flash) for this current channel number. ATHP Channel Number – Select current radio channel number. The channel number is stored in EEPROM memory. Range: 1 - 6 ATIC Read Current Draw Read the current draw in mA. Accuracy is within 20% of actual current draw. Range: 0-9999 ATL Enable/Disable the LEDs – 1 = LEDs always off. This reduces some power consumption. 0 = LED operate normally.
Read the Band – Reads the frequency band of the radio. First parameter is the text version (UA, UC, VC, …), second parameter is the lower limit, and the third parameter is the upper limit in MHz. Use to read the band that the radio is tuned to cover. None - CONFIG Display configuration. Displays most all variables. 0, 1, or 2 - CHNUM Read number of channels. This command will return the number of channels this product has. Read the Real Time Clock value.
SYSKEY NETKEY SID RDP TABLE a(optional): P is optional. Set to “C” if this entry is a control channel. SCB X to read and display a bank’s settings. SCB X ERASE will erase all entries in bank X. SCB X Y DELETE will delete channel Y from bank X. SET the encryption key. Set the SYSTEM encryption key. This is an ASCII hex representation of the 128 bit key. It must contain 32 hex characters. SYSKEY DEFAULT sets the factory default key. SET the encryption key. Set the NET encryption key.
Data Modem Settings: Over-the-air data modem baud rate: ................. 4800 baud, 2-level Serial port .......................................................... 9600baud, N/8/1 Hardware flow control ....................................... Off RF Power Output .............................................. 100% (2watts) Channel number selected ................................. 1 ID (ATMY) ......................................................... 1234 Address Mask (ATMK) ....................................
ATRT 0 CONFIRM ATFC INITIALIZE ALL SCB INITIALIZE ATIO 5 HWMODE 0 Radio Type 0 for RV-M8-UC Radio modem Loads factory defaults into channel table Loads the channel banks with default channels Digital I/O mode Hardware mode 0 Once the RV-M8-UC is ready to be used on a DART network, make sure all of these settings are set. ATMT 5 SID xx Hyper/DART modem type Set the system ID On RV-M8-UC , the periodic reporting must be enabled. This command is set at the factory to enable GPS periodic reporting.
7 = Transmit CW on center of channel 8 = Transmit preamble (101010 pattern) ML x Debug Message Level. By default and at power on, this level is set to 0 (no debug messages). 0 = no debug or diagnostic messages 1 =DART, and data reception related message will come out serial port 2 = Verbose messages, Mostly used for factory and engineering purposes. SHOW Display an overview of the configuration. STAT Display statistics of how the modem is working. Company Confidential 20 Raveon Technologies Corp.
9. Diagnostic Provisions 9.1. Overview of Diagnostics Internal to the RV-M8-UC radio modem, is a powerful 32-bit microprocessor. Along with handing all aspects of radio modulation and demodulation, the microprocessor also maintains an extensive array of diagnostic information. This section details the diagnostic information available, and describes how to us the information to optimize or troubleshoot a RV-M8-UC radio network. 9.2.
10. Tune-up and Alignment The RV-M8-UC modem has been factory calibrated, in should not require any recalibration when installed, or when changing frequency or channel. Unless the user is trained in radio test and calibration, the values stored in the R registers should not be modified. Radio calibration and alignment is performed using the ATRx commands. Improper adjustment of the radio calibration (R0-R9 and RA registers), can result in failure of the radio modem.
R3 Serial Port time out – Number of mS of no activity on the serial port before transmitting the data in its buffer. R5 Preamble length – The number of bytes to send overthe-air in the pre-amble. 20 (mS) Range: 1 - 5000 4** R8 Frequency Offset. Used to set the radio on the center of the radio channel. R9 Modulation Balance. RA Select RF CD output threshold – This value is the RSSI threshold where the carrier detect is asserted.
3. Verify the DC center of the demodulated data is stable. The random data should be randomly timed 1s and 0s, and have little to no AC component on them. See pictures below for details. 4. If necessary, change the ATR9 setting so that the long data bit have the same amplitude and DC value as the shorter ones. 5. On the low end of the band, adjust ATRL so that the modulation is proper. 6. On the high end of the bamd, adjust ATRH so that the modulation is proper.
11. Mechanical 11.1. DC Input A. Change to locking / waterproof type Company Confidential 25 Raveon Technologies Corp.
