Raveon RV-M8R Technical Manual Download Page 1

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Company Confidential

Raveon Technologies Corp.

RV-M8S / RV-M8R

Data/Tracking/Paging Radio

Modem

Technical Manual

Version D1

June 2019

Raveon Technologies Corporation

2320 Cousteau Court

Vista, CA 92081

www.raveon.com

Summary of Contents for RV-M8R

Page 1: ...Confidential 1 Raveon Technologies Corp RV M8S RV M8R Data Tracking Paging Radio Modem Technical Manual Version D1 June 2019 Raveon Technologies Corporation 2320 Cousteau Court Vista CA 92081 www rav...

Page 2: ...5 5 CONFIG Button 10 5 6 Exiting the Command Mode 11 6 Command Mode Commands 12 6 1 General Command Common to Data Mode and Paging Mode 12 6 2 Data Modem Mode Related Commands 15 6 3 Paging Receiver...

Page 3: ...alibration Commands 43 11 3 Center Frequency 44 11 4 TX Deviation 44 11 5 TX Modulation Balance Error Bookmark not defined 11 6 RX Carrier Detect 44 12 Troubleshooting 47 Symptom Unit will not receive...

Page 4: ...g 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...

Page 5: ...figuring the mode is very easy The M8S also has a digital input pin that may be used to electrically change modem types between data modem and paging modes The M8S is an easy to use and its re program...

Page 6: ...eal time operation Paging Receiver Features POCSAG decoder mode operates at 512 1200 and 2400 baud 1 3 programmable cap codes Promiscuous mode to receive all pages on the air Automatic and manual swit...

Page 7: ...ternal input buffer ATJF command sets the threshold where CTS is negated 10 RTS I RTS input for serial flow control of outbound serial data Enable with In audio pass through mod functions as PTT 0 TX...

Page 8: ...he module For best RF performance the M8S module should be mounted to the system ground using metal stand offs 3 5 STAT LED Outputs An external dual color LED may be connected to STAT1 and STAT2 pins...

Page 9: ...put into a Command Mode by entering a sequence of three plus characters To keep the M8S modem from unintentionally entering the Command Mode because of the pattern occurring in a stream of data enteri...

Page 10: ...s 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 pa...

Page 11: ...FIG button is pressed and the IO port is RS232 it will revert back to the settings programmed into the M8S modem once the Command Mode is exited 4 6 Exiting the Command Mode There are three ways to ex...

Page 12: ...f data deviation 100 limits audio to same as data Range 0 300 100 ATBT Silence BEFORE Sequence Sets period of silence before the command sequence character in mS Range 0 1000 mS 500 ATBW Set Read IF B...

Page 13: ...not store the channel number into EEPROM Range 1 6 1 ATHP Channel Number Select current radio channel number The channel number is stored in EEPROM memory Range 1 6 1 ATIC Read Current Draw Read the c...

Page 14: ...ATST Statistics Show the unit s operational statistics See Statistics section of user manual 0 1 2 3 4 or 5 None ATTD Transmit Test Data When issued the modem will begin transmitting data The type of...

Page 15: ...e of listing the most recent receptions and the IDs that the data was sent from The time shown is time in seconds since the reception 2mS resolution No parameter ATHX Enable Disable single hop repeati...

Page 16: ...r the air packet 1 512 80 TXHOLD TX Hold ON Will hold the transmitter on between transmissions for x amount of milliseconds waiting for more data 0 ATXn Show or Configure the Repeat Table Set the addr...

Page 17: ...ngs Primary Protocol ATMT 0 Packet Data Alternate Protocol ATMA 3 POCSAG WMX WMX 0 OFF Paging Settings Over the air paging baud rate 512 baud Alternate protocol pin 15 1 POCSAG 512 Paging data format...

Page 18: ...1 POCSAG 512 Paging data format DF Auto detect Paging Cap Code 1 CC 1 279001 279001 Data Modem Settings Over the air data modem baud rate 4800 baud 2 level Serial port 9600baud N 8 1 Hardware flow con...

Page 19: ...rence 2 This device does accept any interference received including interference that may cause undesired operation FCC License is not required This device operates on frequencies authorized for use i...

Page 20: ...to configure the M8S to receive pages sent to cap code 12345 issue the following command CC 1 12345 By factory default the cap code is set to 12345 and all other cap code registers are disabled If you...

Page 21: ...ic Messages When the pager receives an alphanumeric page it outputs the charactors via its RXD output pin on the I o connector The baud rate of the serial port is set with the ATBD command Alphanumeri...

Page 22: ...he data that is transferred WMX Data Frame Format for Paging Reception Field Number Bytes Field Name ASCII Code Function 1 Start of Header SOH 1 0x01 Indicates beginning of a frame 1 1 Control Field 1...

Page 23: ...is stored in a buffer within the modem until it is ready to be transmitted Packetized operation has these advantages over non packet modems Packet Mode Advantages 1 Error Detection The modem uses a 1...

Page 24: ...are 9600 bps 8 data bits 1 stop and no parity 4 Program the modem s operating frequency to your desired operating frequency This is done with the ATFX xxx xxxxx command 5 Using the AT commands change...

Page 25: ...C is verified and any decryption is complete 2 Data with Errors Packet mode does not output corrupted data But when a streaming mode radio is receiving data it works down into the noise floor of the r...

Page 26: ...t much higher say 2 8X the over the air rate the channel utilization becomes near 100 Because the M8S can handle serial port data rate far in excess of the over the air rate the efficiency of the M8S...

Page 27: ...imal Numbers 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 repr...

Page 28: ...ng data with a destination ID of 12FF will be received by any modem with a unit ID 1200 through 12FF Sending data with a destination ID of FF34 will be received by any modem with a unit ID of 0034 thr...

Page 29: ...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 to Destination Address 1236 Receivin...

Page 30: ...e 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 M8S as a repeater Important The Unit ID of the repeater mu...

Page 31: ...iable to E D C and G To solve this problem some of the M8S 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...

Page 32: ...Table may have up to 4 entries For example M8S 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...

Page 33: ...n out of their serial ports and during this delay the repeater can do its thing 3 Increase the serial port time out value from 20mS to say 250mS ATR3 250 Then when the polled station responds there is...

Page 34: ...whenever data enters the modem and the transmission will 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...

Page 35: ...in the Packet Mode instead of Streaming mode In Packet Mode data is always first checked for bit errors and never outputted if it detects any errors The end of a transmission is detected by the recei...

Page 36: ...register R2 and is programmed with the ATR2 x command where x is a number corresponding to the rate There are many possible baud rates but not all rates may be used with all radio modem models Consult...

Page 37: ...t 19200 baud as lower data rates Its performance is optimized for 9600 baud 2 level modulation RV M8 UC narrow band version Factory default set R2 to 3 4800 baud For high speed operation set R2 to 4 8...

Page 38: ...r driver to digital out pin can be used to turn the radio on or off without switching the DC which save cost time and current spikes 10 2 The ATSM command The ATSM command manages sleep modes and powe...

Page 39: ...ut on pin 17 There are a few commands designed specifically for use in configuring the operation of the M8S in audio pass through mode AFDC Audio input DC ofset The DC bias level on the audio input in...

Page 40: ...he FM carrier beyond the preset limit with the input TX audio exceeds a threshold that would have cause the M8S or over deviate Raveon suggests the AFDC AFLVL and AFLIM always be adjusted and calibrat...

Page 41: ...nnel 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 8 Transmit preamble 101010 pattern SHOW Display an overvie...

Page 42: ...ins All statistics start counting at 0 The ATST 1 command can be used to reset all statistics back to 0 except the run time timers Other operation and configuration statistics are available using the...

Page 43: ...e 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 center frequency...

Page 44: ...quency offset with the ATR8 command 4 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 t...

Page 45: ...he ATR1 command The default is 1 asserts when M8 data is detected on the radio receiver ATR1 1 Mode 1 Data CD In this mode the CD pin is asserted whenever the modem detect a valid data modem signal on...

Page 46: ...Company Confidential 46 Raveon Technologies Corp If Output Data Framing is enabled any other Carrier Detect and flow control output configuration is ignored...

Page 47: ...re is not connected you device may not be outputting data to the M8 If the TX LED blinks the M8S is transmitting data Every time data enters the modem the TX LED should blink Solution 2 Verify that se...

Page 48: ...enter the string 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 pr...

Page 49: ...Company Confidential 49 Raveon Technologies Corp 16 Mechanical A drawing is shown below...

Page 50: ...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...

Page 51: ...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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