GUARDIAN™ HIGH SPEC RADIO MODEM User Manual PN 001‐5006‐000 Rev 0 Revised February 2010
REVISION HISTORY REV DATE REVISION DETAILS 0 February 25, 2010 Initial Release as 001‐5006‐000.
IMPORTANT NOTICE Because of the nature of wireless communication, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors), or be totally lost. Significant delays or losses of data are rare when wireless devices such as the Guardian are used in a normal manner with a well‐constructed network.
REGULATORY CERTIFICATIONS The Guardian radio is available in several different models each with unique frequency bands. Each model of Guardian may have different regulatory approval as shown in the table below.
[Lithuanian] Nederlands [Dutch] Malti [Maltese] Magyar [Hungarian] Polski [Polish] Português [Portuguese] Slovensko [Slovenian] Slovensky [Slovak] Suomi [Finnish] Svenska [Swedish] Íslenska [Icelandic] Norsk [Norwegian] Direktyvos nuostatas. Hierbij verklaart CalAmp dat het toestel radio in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.
TABLE OF CONTENTS 1 GUARDIAN OVERVIEW ........................................................................................................................................... 9 1.1 General Description ............................................................................................................................................ 9 1.2 Operational Characteristics ...............................................................................................................................
3 4 5 2.5.4 Vertical Dipoles .......................................................................................................................................... 22 2.5.5 Feedline ...................................................................................................................................................... 23 2.5.6 RF Exposure Compliance Requirements .................................................................................................... 23 2.
1 GUARDIAN OVERVIEW This document provides information required for the operation and verification of the CalAmp Guardian Narrowband Modem. 1.1 GENERAL DESCRIPTION This DSP‐based radio was designed for SCADA, telemetry and industrial applications in the 136‐174 MHz, 215‐240 MHz VHF, 406.1‐512 MHz UHF, and 928‐960 MHz frequency ranges. Guardian supports serial Remote Terminal Units (RTU) and programmable logic controllers (PLC).
These features provide system benefits that give users: Rugged Packaging. Guardian is housed in a compact and rugged cast aluminum case. Built for industrial applications in a variety of environments, Guardian operates over an extended temperature range and provides worry‐free operation in the roughest environments. Simple Installation. Basic installation typically utilizes an omni‐directional antenna at the master station or Relay Point and a directional antenna at each remote site not a Relay Point.
1.3.2 LED PANEL The LED panel has five Tri‐Color LEDs. The functionality of each LED is shown in Table 1.1. Table 1.
• Guardian radio modem SETUP and COM ports are Data Communication Equipment (DCE) devices • In general, equipment connected to the Guardian’s SETUP / COM serial port is Data Terminal Equipment (DTE) and a straight‐through cable is recommended. Note: If a DCE device is connected to the Guardian SETUP / COM port, a null modem cable/adapter is required. The pin‐out for the SETUP and COM ports are shown in Table 1.3. Table 1.
1.3.6 ANTENNA CONNECTOR The standard Guardian has a 50‐ohm TNC female antenna connector. This connection functions for both transmit and receive. The Dual‐Port Guardian has a 50‐ohm TNC female antenna connector functioning for transmit (only) and a 50‐ohm SMA female antenna connector functioning for receive (only). The separate receive antenna connector allows for unique customer applications that require additional receive filtering, external PA(s) and other options.
1.4 PART NUMBERS AND AVAILABILITY 1.4.1 GUARDIAN RADIO Table 1.5 provides a breakdown of the Guardian part number 140‐50X6‐Y0Z. Table 1.5 ‐ Part Number Breakdown Model Number Description Frequency Range 140‐5016‐500 140‐5026‐502 140‐5046‐300 Standard VHF Guardian Standard VHF Guardian‐200 Standard UHF Guardian Range 3 136 ‐ 174 MHz 215 ‐ 240 MHz 406.
Table 1.7 Antenna Kits ITEM PART NUMBER Antenna Kit*: 138‐143 MHz 6.5 dBd 250‐0211‐007 Antenna Kit*: 138‐143 MHz 9.5 dBd 250‐0211‐010 Antenna Kit*: 143‐148 MHz 6.5 dBd 250‐0211‐107 Antenna Kit*: 143‐138 MHz 9.5 dBd 250‐0211‐110 Antenna Kit*: 148‐152 MHz 6.5 dBd 250‐0211‐207 Antenna Kit*: 148‐152 MHz 9.5 dBd 250‐0211‐210 Antenna Kit*: 152‐157 MHz 6.5 dBd 250‐0211‐307 Antenna Kit*: 152‐157 MHz 9.5 dBd 250‐0211‐310 Antenna Kit*: 157‐163 MHz 6.5 dBd 250‐0211‐407 Antenna Kit*: 157‐163 MHz 9.
FACTORY AND TECHNICAL SUPPORT M‐F 7:30‐4:30 CST CalAmp Wireless DataCom 299 Johnson Ave., Ste 110, Waseca, MN 56093 Tel 507.833.8819; Fax 507.833.6758 Email imcsupport@calamp.com 1.6 RMA REQUEST When returning a product, mark the RMA clearly on the outside of the package. Include a complete description of the problem and the name and telephone number of a contact person. RETURN REQUESTS WILL NOT BE PROCESSED WITHOUT THIS INFORMATION. Contact Customer Service: 299 Johnson Ave.
2 SYSTEM ARCHITECTURE AND NETWORK PLANNING This section briefly discusses network architecture (including basic network types), interfacing modems and DTE, data protocols for efficient channel operation, addressing, and repeaters. Guardian is designed to replace wire lines in SCADA, telemetry and control applications. The RS‐232 serial port allows direct connection to Programmable Logic Controllers (PLCs) or Remote Terminal Units (RTUs).
2.2.2 POINT‐TO‐MULTIPOINT A Point‐to‐Multipoint network is a common network type used in SCADA or other polling systems. The single polling master station communicates with any number of remotes and controls the network by issuing polls and waiting for remote responses. Individual PLC/RTU remotes manage addressing and respond when their individual addresses are queried. PLC/RTU unit addresses are maintained in a scanning list stored in the host program or master terminal device at the SCADA host site.
2.2.
2.3 EXTENDING THE COVERAGE AREA WITH A RELAY POINT The Guardian has a Relay Point feature that allows a unit to relay data from one RF coverage area to another RF coverage area. When units are spread over two or more coverage areas, the user must identify the devices forming the backbone between coverage areas so any unit can talk to any other regardless of their locations. There can be multiple Relay Points in the system extending the coverage over several hops. Figure 2.
2.4 SITE SELECTION AND SITE SURVEY 2.4.1 SITE SELECTION For a successful installation, careful thought must be given to selecting the site for each radio.
The required antenna impedance is 50 ohms. To reduce potential radio interference, the antenna type and its gain should be chosen to ensure the effective isotropic radiated power (EIRP) is not more than required for successful communication. See Table 1.7 for a list of tested antenna recommendations. These antennas are FCC approved for use with the Guardian. Similar antenna types from other manufacturers are equally acceptable.
2.5.5 FEEDLINE The choice of feedline should be carefully considered. Poor quality coaxial cables should be avoided, as they will degrade system performance for both transmission and reception. The cable should be kept as short as possible to minimize signal loss. See Table 2.1 for a list of feedline recommendations. Table 2.1 ‐ Transmission Loss (per 100 Feet) Frequency Range Cable Type VHF UHF 900 MHz LMR‐400 1.5 dB 2.7 dB 3.9 dB 1/2” Heliax 0.68 dB 1.51 dB 2.09 dB 7/8” Heliax 0.37 dB 0.
The installer of this equipment must ensure the antenna is located or pointed such that it does not emit an RF field in excess of Health Canada limits for the general population. Recommended safety guidelines for the human exposure to radio frequency electromagnetic energy are contained in the Canadian Safety Code 6 (available from Health Canada) and the Federal Communications Commission (FCC) Bulletin 65.
b. Directional antennas should be used at the remote end of the link. They confine the transmission and reception pattern to a comparatively narrow beam, which minimizes interference to and from stations located outside the pattern. c. If interference is suspected from another system, it may be helpful to use antenna polarization opposite to the interfering system’s antennas. An additional 20 dB (or more) of attenuation to interference can be achieved by using opposite antenna polarization. d.
3 SETUP AND CONFIGURATION It is easy to set up a Guardian network to verify basic unit operation and experiment with network designs and configurations. 3.1 INSTALL THE ANTENNA An RX/TX antenna is required for basic operation. For demo units only, connect the antenna as shown in Figure 3.1 to provide stable radio communications between demo devices. Figure 3.
4 UNIT STATUS The Unit Status windows display device General and Diagnostic information. 4.1 UNIT IDENTIFICATION AND STATUS Each Guardian has addressing capability which is used for diagnostics and remote commands only. 4.1.1.1 ID NUMBER This value (maximum 1023) is assigned at the factory but may be modified using the Field Programming Software. The ID Number is used to uniquely identify the Guardian for remote commands and Offline Diagnostics.
4.2.2 OFFLINE DIAGNOSTICS Offline diagnostics are statistics returned in response to a specific request to a particular station. The use of this feature requires temporary suspension of user network operation. Offline diagnostics provide information that is displayed via the Offline Diagnostics utility.
5 5.1 GUARDIAN FIELD PROGRAMMING SOFTWARE INTRODUCTION The Guardian Field Programming Software provides programming and diagnostics for the Guardian wireless modem. The Field Programming Software allows the user to edit and program user programmable settings, interactively tune modem and RF parameters, and monitor diagnostic data from the Guardian. See Figure 5‐1 for the Guardian Field Programming Software startup screen. Figure 5.
DTR Enable Used to assert DTR (Data Terminal Ready) line of the RS232 Port when the port is open for the Primary and Secondary COM Ports. Swap COM Ports Selecting the Swap Com Ports button moves the Secondary COM Port settings to the Primary COM Port (and moves the Primary COM Port to the Secondary settings). Since Guardian programming is done through the Primary COM Port, this is useful when two units are connected to the Primary and Secondary COM Ports.
5.1.3 PORT STATISTICS Figure 5.1 Port Statistics Screen Port Statistics show current parameters of the PC’s Primary and Secondary COM Ports. Baud Rate Baud Rate shows the current baud rate setting for the Primary and Secondary COM ports. RTS RTS shows the current state of the RTS (request to send) line. RTS is an output from the PC. DTR DTR shows the current state of the DTR (data terminal ready) line. DTR is an output from the PC. CTS CTS shows the current state of the CTS (clear to send) line.
5.1.4 SETUP MODEM/RADIO PARAMETERS Figure 5.2 Setup Modem/Radio Screen The Setup Modem/Radio Parameters screen is accessed from the Edit menu pull‐down or from the Parms icon when the tool bar is visible. 5.1.4.1 MODEM OPERATING PARAMETERS The Setup Modem/Radio Parameters allows the user to view and edit GUARDIAN’s programmable parameters. Programming parameters can be stored in a data file with the .DAT file extension.
Modem operating parameters include: Long ID The electronic ID Number is a unique number assigned at the factory. This number may be changed in the case of a duplication. The ID Number is used by the programmer for remote addressing and diagnostics. The range of this field is 1 to 4294967295 but multiples of 1024 should not be used. A multiple of 1024 results in a Short ID of 0. If the ID Number is within the range of 1 to 1023, the Short ID will be the same.
• Internal Temperature (in Celsius) • Forward and Reverse Power (in Watts) • Received Signal Strength (in dBm) T‐Base Option Available when connected to a GUARDIAN Wireless Modem, the “T‐Base Option” makes the necessary circuit changes to allow using the modem as a special diagnostic unit in the T‐Base/R. The default value is “Disabled” (unchecked).
c. 9 Data Bits, 1 Stop Bit d. 9 Data Bits, 2 Stop Bits Table 2‐8 shows supported user formats and modem programming. Note: A Yes in the Parity column indicates Even/Odd or Mark/Space Parity. A No in the Parity column indicates none. N/A means the combination is not available. Table 5.
Product Mode Speed diag. off diag. on diag. off diag. on T‐96S 4800 b/s 30 ms 54 ms 60 ms 85 ms T‐96S 9600 b/s 30 ms 41 ms 60 ms 75 ms GUARDIAN 9600 b/s 20 ms 32 ms 40 ms 55 ms GUARDIAN 19200 b/s 20 ms 28 ms 40 ms 50 ms Note: If 9 Data Bits, 2 Stop Bits is selected, Remote Diagnostics or Commands are not supported and Online Diagnostics must be disabled for proper network data operation. Important: All units in a network must use the same Data Format setting. 5.1.4.
Figure 5.4 Network Type Connected to T‐96S/DL3276 Connected to a GUARDIAN Modem, Network Types include: 1. GUARDIAN Native: available Baud Rate options include 4800/9600/19200 for full‐channel units or 4800/9600 for a half‐channel units. Data Type is Enhanced Only 2. T‐96S/DL3276: available Baud Rate options include 4800/9600 for full‐channel units or 4800 for half‐ channel units. Data Type offers two options: Enhanced and Compatible.
5.1.4.4 RADIO SETUP PARAMETERS The Radio tab provides the interface for programming various radio operating parameters. Figure 5.5 Radio Setup Parameters Screen Radio This field designates the radio model. Range This field designates radio frequency range. Channel This field specifies whether the unit is full‐ or half‐channel (12.5 or 25 kHz). Redirect Channel 8 The Redirect Channel 8 field allows Channel 8 to be directed to another programmed channel.
Tx Only Radio The Tx Only Radio option disables the radio’s receiver and any ability for the modem to receive data. This function is provided for use with the Tx unit incorporated into a T‐Base or T‐Base/R. Rx Only Radio The Rx Only Radio option disables the radio’s transmitter and any ability for the modem to transmit data. This function is provided for use with the Rx unit incorporated into a T‐Base or T‐Base/R. PTT Watchdog The PTT Watchdog allows the user to set the maximum transmit time.
Figure 5.6 Setup Radio/Modem Frequencies Parameters Chan Chan displays the frequency channel pair. Rx Frequency Rx Frequency displays the receive frequency for the channel pair. Tx Frequency Tx Frequency displays the transmit frequency for the channel pair. Power Power displays the Power Output Adjust value for the channel pair. The default value is 255 (5 watts).
5.1.5 VERSION REQUEST Selecting Version Request causes the GUARDIAN Field Programming Software to display information about the version of the GUARDIAN hardware and firmware. Figure 5.7 Version Request Screen 5.1.6 WRITING/READING GUARDIAN PARAMETERS After all radio parameters are setup, select the OK button to store the information into the PC’s memory. To load parameters into the GUARDIAN, initiate a Write Programmable Settings from the Edit menu or select the Write icon from the Tool Bar.
5.1.8 DIAGNOSTIC IDS AND ALARMS The Diagnostics IDs and Alarms screen allows the user to set up the ID List for use with the Offline Link Test and Offline and Online Diagnostics as well as the Alarms for use with Online Diagnostics. Figure 5.9 Diagnostic IDs and Alarms Screen ID Entry and List ID Entry allows the entry of a Long ID to be added to the ID List. The range of this field is 1 to 4294967295 but multiples of 1024 should not be used. A multiple of 1024 results in a Short ID of 0.
Low/High RSSI: Low/High RSSI represent the low and high limits for the RSSI diagnostics (in dBm). Low/High Temp: The Low/High Temp represents the low and high limits for the temperature diagnostics (in degrees C). Low/High Batt: Low/High Batt represents the low and high limits for the battery voltage diagnostics (in volts). Low/High Fwd Pwr: Low/High Fwd Pwr represents the low and high limits for the forward power diagnostics (in watts).
Figure 5.10 Offline Link Test Screen Blocks Tx’ed to Remote Blocks Tx’ed to Remote displays the number of data blocks transmitted to the remote unit. Blocks Rx’ed from Remote Blocks Rx’ed from Remote displays the number of data blocks received from the remote unit. Link Quality Link Quality displays the ratio of data blocks received to data blocks transmitted (in %). # of Blocks to Send # of Blocks to Send allows the user to determine the number of blocks to send before stopping (with 0 being disabled).
Start Start is used to begin the test. Pause Pause is used to pause the test and allows the user to resume the test at a later time. 5.1.10 OFFLINE DIAGNOSTICS Offline Diagnostics are returned from a local or remote unit in response to a Get Diags request (see Figure 2‐18). An Offline Diagnostics request requires suspension of user network operation. Diagnostics Select Select allows the user to choose Current, Low or High Diagnostics. Current shows the value of the last requested parameters.
Figure 5.11 Offline Diagnostics Screen Network Statistics Offline Network Statistics are only available when the ‘Online Diagnostics’ option is enabled for the network. Online Diagnostics are located on the Setup Modem/Radio Parameters screen. When enabled, diagnostic information is inserted at the beginning of each transmission from each unit in the network. While the network may remain online, the monitoring unit is in ‘Setup’ mode (flashing green LED).
Battery Voltage Battery Voltage shows the supply voltage (in Volts). Forward Power Forward Power shows forward power (in Watts). Reverse Power Reverse Power shows reverse power (in Watts). RSSI Panel The RSSI panel shows the current RSSI level (in dBm) while the local unit is receiving. Modem Select Local ID The Local ID button allows the user to send commands to the local unit (the unit interfaced to the computer). The Short ID for this unit is shown.
Get Diags / Stats The Get Diags button allows the user to send the command for Offline Diagnostics. The command is sent to the unit connected to the computer if the Local ID button is selected. The command is sent to the selected Remote ID if the Remote ID and Selected Remote ID buttons are selected. The command is sent to the list of Remote IDs if the Remote ID and Remote ID List buttons are selected. Stop The Stop button allows the user to stop any commands for Offline Diagnostics from being sent.
Figure 5.12 Online Diagnostics The following Online Diagnostics are gathered: Short ID The Short ID displays the Short ID of the unit transmitting the diagnostics. RSSI RSSI (Received Signal Strength Indicator) displays the RSSI (in dBm) ID of the unit transmitting the diagnostics. This is the RSSI sampled during the last transmission received. Temp Temp displays the internal case temperature (in Celsius) of the unit transmitting the diagnostics.
RevP RevP displays the reverse (reflected) power (in watts) of the unit transmitting the diagnostics. Time Time is the time stamp when the diagnostics were received. Filter Filter allows the user to filter Short IDs. The following options are available: • Off (All IDs): no IDs are filtered out • ID List: only the IDs in the Filter ID List are shown • Selected ID: only the selected ID in the Filter ID List is shown Display Display allows the user to format on screen data.
5.1.12 USER TEST Figure 5.13 User Test Screen The User Test utility is an Offline function and requires suspension of network operation. A User Test’s diagnostic parameters include: RSSI Level Received Signal Strength Indication (in dBm) Battery Voltage Supply voltage (in volts) Temperature Internal temperature (in degrees Celsius) Forward Power Forward power (in watts) Reverse Power Reverse power (in watts) Preamble Good The number of correctly decoded transmissions received in the last 15.
RSSI This panel shows the current RSSI level (in dBm) while the local unit is receiving. Rx / Tx Frequency Rx / Tx Frequency shows the current receive and transmit frequencies. F5 Pressing the F5 key will cause the unit to transmit on the programmed transmit frequency. F6 Pressing the F6 key will cause the unit to go to receive on the programmed receive frequency 5.1.13 PACKET TEST Figure 2‐20 Packet Test Screen The Packet Test screen is used to simulate a Host/Remote polling environment.
Remote Packets Rx’ed Host Packets received shows the number of data packets the Remote device has received from the Master. Host to Remote % Host to Remote percentage shows the percentage of packets the Host device has successfully sent to the Remote. Remote Packets Tx’ed Remote Packets transmitted shows the number of data packets that the Remote device has returned to the Host. Host Packets Rx’ed Host Packets received shows the number of data packets the Host device has received from the Remote.
• Host/Remote (1 computer / 2 ports) ‐ Configures the primary COM port as the Host device and the secondary COM port as the Remote device. This option requires a computer with 2 COM ports. Host/Remote (1 Port using a Y‐cable) ‐ Configures the primary COM port as the Host and Remote device. A Y‐cable is required for this option (with transmit connections split to the transmitting device and receive connections split to the receiving device).
DTR 4 20 ‐ ‐ ‐ GND 5 7 X X X DSR 6 6 ‐ ‐ ‐ RTS 7 4 X ‐ X CTS 8 5 X ‐ X RI 9 22 ‐ ‐ ‐ X = Requires connection ‐ = No connection Figure 2‐21 Array Test Screen Type of Data Type of Data allows the user to select the data pattern for each packet. The size for each data pattern is listed in the pattern format explanations (packets are built using one of four possible patterns).
999 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 000 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 001 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ‐‐‐ • ASCII Number Pattern ‐ The packets will be 58 characters in length and have a sequence number at the beginning of each string, starting at 000 and incrementing to 999, then wrapping around to 000 again.
Packet Delay Packet Delay allows the user to set the amount of time (in seconds) to delay between each packet transmission, ranging from 0.00 to 30.00 seconds (in 0.25 second intervals). Com Port Com Port allows the user to select the COM port (primary or secondary) for data transmission. 5.1.15 ASCII / HEX TERMINAL Terminal Screens allow the user to select an ASCII or Hexadecimal Terminal Screen for the Primary and Secondary COM Ports (configured in the Port Settings screen ‐ see Section 2.5.2.
5.1.15.1 ASCII TERMINAL ASCII Terminal configurations include: Primary The Primary ASCII Terminal screen sends and receives ASCII data on the Primary COM Port (set up in the Port Settings screen). Secondary The Secondary ASCII Terminal screen sends and receives ASCII data on the Secondary COM Port (set up in the Port Settings screen). 5.1.15.
Under the “Utilities” menu choose the “ASCII Terminal”. From the “ASCII Terminal” screen, choose the “Primary” selection. This will open an ASCII terminal window using the primary COM port of the computer. This procedure should be done for both GUARDIANs. The ASCII Terminal utility has provisions for transmitting the ASCII data, displaying received ASCII data and displaying ASCII transmitted data. Figure 2‐23 shows the window for the Primary ASCII Terminal.
Figure 2‐24 End to End Test: Text message sent The ASCII message is transmitted to the other GUARDIAN. The ASCII terminal program will display the received ASCII message in the Rx Data area as shown Figure 2‐25.
If the message was not displayed as typed, then a problem may exist in the system. Check all parameters and connections in the system. The signal level should also be checked again. The GUARDIAN’s Link Test utility can be used to verify a communication path. The previous procedure can also be used with the Hex Terminal utility. When the Hex Terminal is used, the information is entered as hex code. Figure 2‐26 shows how the information will look when it is typed in and sent in hex.
6 GUARDIAN SPECIFICATIONS These specifications are typical and subject to change without notice. GENERAL VHF UHF 140-5016-50x 140-5046-400 (ETSI, AS/NZ) 140-5026-50x 140-5046-50x 900 140-5046-30x Model Numbers 140-5096-50x 140-5046-600 (AS/NZ) 406.125 – 470.000 MHz Frequency Range (MHz) 136 – 174 MHz 406.125 – 470.000 MHz 215 – 240 MHz 450.000 - 511.975 MHz 928 – 960 MHz 450.000 - 511.975 MHz Frequency Stability 1.0 ppm Channel Bandwidth 12.5 kHz 25 kHz 12.5 kHz 25 kHz 12.
VHF TRANSMITTER Tx Frequencies Carrier Output Power UHF 900 136 - 174 MHz 215 – 240 MHz 406.125 – 470.000 MHz 450.000 - 511.
MODEM/LOGIC Model 12.5 kHz 25 kHz 140-5016-50x 4800 4800 9600 9600 19200 140-5026-50x 4800 4800 9600 9600 19200 140-5046-30x Data Rate (Selectable) 4800 4800 9600 9600 19200 140-5046-50x 4800 4800 9600 9600 19200 140-5096-50x 4800 4800 9600 9600 19200 Modulation Type 2FSK Addressing Serial SETUP and COM Port Interface EIA-232F DCE Data Rate Setup Port: 300 – 19,200 bps (Default: 19.2 Kbps) Com Port: 300 – 115,200 bps (Default: 9.
Diagnostics Message Elements Temp, Voltage, Local/Remote RSSI, Forward Power, Reverse Power, Message Quality Domestic and International Certifications Model Number Frequency Range FCC IC (DOC) 140-5016-500 136 – 174 MHz NP4-5016-500 773B-5016500 140-5016-501 136 – 174 MHz NP4-5016-500 773B-5016500 140-5026-502 215 – 240 MHz NP4-5026-502 Pending 140-5026-503 215 – 240 MHz NP4-5026-502 Pending 406.1 - 470 MHz NP4-5046-300 773B-5046300 406.
7 PRODUCT WARRANTY PRODUCT WARRANTY CalAmp warrants to the original purchaser for use ("Buyer") that data telemetry products manufactured by DRL ("Products") are free from defects in material and workmanship and will conform to DRL's published technical specifications for a period of, except as noted below, one (1) year from the date of shipment to Buyer.
ABOUT CALAMP CalAmp is a leading provider of wireless communications products that enable anytime/anywhere access to critical information, data and entertainment content. With comprehensive capabilities ranging from product design and development through volume production, CalAmp delivers cost‐effective high quality solutions to a broad array of customers and end markets. CalAmp is the leading supplier of Direct Broadcast Satellite (DBS) outdoor customer premise equipment to the U.S.
