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Company Confidential

Raveon Technologies Corp.

RV-M8S

Data

Radio Modem

Technical Manual

Version B4

January 2018

Raveon Technologies Corporation

2320 Cousteau Court

Vista, CA 92081

www.raveontech.com

Содержание RV-M8S

Страница 1: ...Company Confidential 1 Raveon Technologies Corp RV M8S Data Radio Modem Technical Manual Version B4 January 2018 Raveon Technologies Corporation 2320 Cousteau Court Vista CA 92081 www raveontech com...

Страница 2: ...IG Button 14 4 7 Exiting the Command Mode 15 4 8 Password Protection 15 4 9 Command Mode Commands 16 4 10 Other non AT commands 19 4 11 Factory Default Settings 20 5 Using the M8S Modem Packet Mode 21...

Страница 3: ...ommand 39 9 Tune up and Alignment 41 9 1 Periodic Calibration 41 9 2 Calibration Commands 41 9 3 Center Frequency 42 9 4 TX Deviation 42 9 5 TX Modulation Balance Error Bookmark not defined 9 6 RX Car...

Страница 4: ...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...

Страница 5: ...ipment 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 interferen...

Страница 6: ...e human body at all times Afin de se conformer aux exigences d exposition RF FCC ISED cet appareil doit tre install pour fournir au moins 100 cm de s paration du corps humain en tout temps In order to...

Страница 7: ...imize it for specialized operations extended range or higher data throughput 2 1 Features High speed over the air data rates Built in radio transceiver with integrated modem Easy to use Plug in Turn o...

Страница 8: ...Input Low 400mV Enable input High 1 40V DC Input 10 30 VDC 3 2 DC Input 3 3V Input Specifications DC Current Draw RX mode 100mA DC Current Draw TX mode 100mW RF out 700mA 750mA Module disabled using p...

Страница 9: ...RF No tune bandwidth 20MHz Adjacent Channel Selectivity 65dB Alternate Channel Selectivity 70dB Blocking and spurious rejection 75dB RX intermodulation rejection 70dB 3 5 Interface Specifications Ser...

Страница 10: ...Transmit data input 6 Data Out RXD O Receive data output 7 Enable I Low to shutdown the module High to enable it 8 Sleep i CPU Sleep input 9 CTS O Clear to send output Indicates state of internal buf...

Страница 11: ...tency as it has to power up the radio each time it wishes to transmit The ATSM 0 command returns the M8 modem into the normal operating mode with the receiver and transmitter operational The factory d...

Страница 12: ...ionally 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 ei...

Страница 13: ...command To see a list of all commands type HELP 4 5 Radio Manager Radio Manager is a Windows XP Vista software application that is used to configure Raveon s data radio products It is compatible with...

Страница 14: ...e modem into a known operational state The CONFIG button is located inside the modem Remove the rear cover exposing the two circuit boards The button is in the front edge of the radio module s circuit...

Страница 15: ...ll 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 4 8 Password Protection On M8 serie...

Страница 16: ...F does not support w N N or W CD Carrier Detect Threshold Read set the carrier detect threshold in dBm 113 means 113dBm Version firmware and higher 113 120 to 60 CH Configure Hardware Flow Control Ena...

Страница 17: ...8 modems support RS 232 mode Range 0 5 0 RS232 1 Ethernet 2 RS485 dup 3 RS485 simplx 4 RS422 5 GPS 0 IC Read Current Draw Read the current draw in mA Accuracy is within 20 of actual current draw Range...

Страница 18: ...r an ACK 0 disabled feature Range 0 99 0 ACKs are not used RF RF Carrier Required When enabled there must be RF energy on the channel for the modem to output data Streaming data mode only 1 RF require...

Страница 19: ...ard Repeating 0 disabled 1 enabled 0 or 1 0 Off XT Read set repeater delay Read or set the repeater delay This is the time between receiving a data packet and the time the repeater will re send it F R...

Страница 20: ...For the UHF M8S model RV MS8 Ux the main factory defaults are Channel 1 UC model 464 500 MHz Channel 1 UA model 413 100 MHz Over the air baud rate 4800 baud 2 level Serial port 9600baud N 8 1 Hardware...

Страница 21: ...mit packets with error to ensure the user s data is delivered error free 3 Addressing Packetized operation allows for a more versatile network architecture with source destination and network addresse...

Страница 22: ...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 The facto...

Страница 23: ...channel is a pair of frequencies one for transmit and one for receive They may be different or they may be the same You may program any valid frequency into any channel number To program a channel per...

Страница 24: ...large gaps between the bytes of data they send out the serial port If an application is not getting the desired throughput verify that it is not an artifact of the Operating System or the computer Flo...

Страница 25: ...at was not intended for it and by setting the addresses in the modems properly the system can be configured to allow reception of only data intended for the recipient If addressing is not needed or de...

Страница 26: ...needed in your system there are two ways to ensure it is not used One way is to set all modems in the system with the same Unit Address and Destination Address From the factory these are both set to...

Страница 27: ...e is an Address Mask programmed into it The default mask is FFFF The address mask is used to determine if a particular data transmission should be received by the modem For most applications where one...

Страница 28: ...lt 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 to Destination Address 1236 Receiving Unit...

Страница 29: ...e ACK back and the sending station will automatically re send the data There are two aspects to configuring ARQ a Enable the ARQ mode in the modem to allow it to transmit ACKs ATAK 1 command This comm...

Страница 30: ...radio can hear on the air REPEAT 0 disables store and forward repeating It is highly recommended that you use this method to configure your M8 as a repeater Important The Unit ID of the repeater must...

Страница 31: ...liable to E D C and G To solve this problem some of the M8 modems are configured as repeaters The still are able to send and receive data but they also will repeat data out to the modems that are out...

Страница 32: ...r Table may have up to 4 entries For example M8 B in the above example will have two entries in its Repeater Table The command to set the two entries is ATX1 1020 FFFF 1000 FFFF ARX2 1000 FFFF 1000 FF...

Страница 33: ...aud rate on the end stations to be fairly slow ATBD x Thus when they receive a poll request there is a delay as they send data in out of their serial ports and during this delay the repeater can do it...

Страница 34: ...ill continue as long as there is data to send The transmitter will automatically key when data enters the modem and there is no need to assert any control lines It will automatically de key when there...

Страница 35: ...checked for bit errors and never outputted if it detects any errors The end of a transmission is detected by the receiving modem by the presence of a special end of message signal Transmitting M8s au...

Страница 36: ...z or 25kHz 2 RV M8 UC N RV M8 UC W 8000bps R2 4 12 5kHz or 25kHz 4 RV M8 UC N RV M8 UC W 9600bps R2 5 25kHz 2 RV M8 UC W only 19200bps R2 6 25kHz 4 RV M8 UC W will not work with Radio Type 5 5142bps R...

Страница 37: ...9600bps will work but have a less optimal bit error rate vs receive sensitivity RV M8 UC W wide band version For high speed operation set R2 to 5 9600 baud For best range longest distance set R2 to 1...

Страница 38: ...xxx to see if xxxx can hear the sending station If it does it answers with a response transmission containing its ID and the signal strength of the reception STAT Display statistics of how the modem i...

Страница 39: ...n statistics that it maintains All statistics start counting at 0 The ATST 1 command can be used to reset all statistics back to 0 except the run time timers Other operation and configuration statisti...

Страница 40: ...Company Confidential 40 Raveon Technologies Corp ST10 Statistic Read Returns numeric values comma separated of all statistics as described in the ST command Run time display screen...

Страница 41: ...Calibration The only setting that may require adjustment is the center frequency After years of operation all crystals will age and change frequency slightly The ATR8 command is used to adjust the ce...

Страница 42: ...t and send a digital 0 continuously This should be 2 0kHz in frequency for narrow band radios 12 5kHz spaced channels and 4 0kHz for wide band 25kHz channels 3 Adjust the deviation register setting so...

Страница 43: ...al can be inverted with the ATDCD command 1 Data Framing If Data Framing is enabled any other Carrier Detect and flow control output configuration is ignored Set ATR1 3 to enable Set ATS120 and ATS121...

Страница 44: ...Company Confidential 44 Raveon Technologies Corp Unused Page...

Страница 45: ...nks the M8 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 M8 w...

Страница 46: ...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 ATL0 command Solution 2 V...

Страница 47: ...E 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 possibl...

Страница 48: ...Company Confidential 48 Raveon Technologies Corp 12 Mechanical...

Страница 49: ...e Radio k damage during shipment l that the Product will be free from any claim for infringement of any patent trademark copyright or other proprietary right including trade secrets RAVEON TECHNOLOGIE...

Страница 50: ...e 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 ma...

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