A choice of four antennas is offered for the RavenXTG. The 20679 is recommended for locations where cellular coverage is strong. This dual-band omnidirectional antenna covers both the 800-MHz and the 1.9-GHz bands. For the 800-MHz band, the 20679 provides a 0-dBd gain. For the 1.9-GHz band, the 20679 provides a 3-dBd gain. Connection to the RavenXTG requires an antenna cable (refer to the 21847, COAXSMA-L, or COAXNTN-L listed below).
The 31128 is a wideband Yagi directional antenna. It is uniquely suited for cellular applications because of its ability to provide gain across all of the cellular frequency bands. The antenna has a Type N female connector and includes the mounting hardware.
Either this cable or the COAXSMA-L (see below) is typically used with the 18285, 20679, or 10530 antennas. The 21847 has a 12-foot length. It consists of an LMR195 coaxial cable that terminates in a type N male connector on the "antenna end" and an SMA connector on the "transceiver end." If surge suppression is required, use the COAXNTN-L cable and 19533 Surge Suppressor Kit instead of this cable (see Other Accessories).
This 10 ft (3.1 m) roll of 1"-wide black self-vulcanizing tape can help protect the connection of outdoor antennas. After connecting the coaxial cable to the antenna, wrap the tape around the connectors that are exposed to the environment.
A choice of four antennas is offered for the RavenXTG. The 21831 is a 0 dBd half-wave dipole whip antenna that attaches directly to the RavenXTG. It can transmit short distances. This antenna must reside inside of an enclosure or building.
A choice of four antennas is offered for the RavenXTG. The 18285 is an omnidirectional antenna with a 1 dBd gain. It is recommended where cellular coverage is strong. This dual-band antenna covers both the 800 MHz and 1.9 GHz bands. Connection to the RavenXTG requires an antenna cable (refer to the 21847, COAXSMA-L, or COAXNTN-L listed below).
The COAXNTN-L is a low-loss RG8 coaxial cable that requires the 19533 surge suppressor to connect it to the RavenXTG. The COAXNTN-L/19533 combination is recommended over the COAXSMA or 21847 when the RavenXTG is used in an environment susceptible to lightning or electrostatic buildup, or when the antenna cable must be longer than 20 feet. Please note that cable lengths longer than 20 feet should be avoided because the signal strength will be weakened.
Either this cable or the 21847 (see above) is typically used with the 18285, 20679, or 10530 antennas. The COAXSMA-L is offered for customers who want a user-specified lead length; a maximum length of 20 ft (6 m) is recommended. The COAXSMA consists of an LMR195 coaxial cable that terminates in a type N male connector on the "antenna end" and an SMA connector on the "transceiver end." If surge suppression or lengths longer than 20 feet are required, use the COAXNTN-L cable and 19533 Surge Suppressor Kit instead of this cable (see Other Accessories).
For the RF450, the recommended length is 5 ft (1.5 m), and the maximum length is 10 ft (3 m). For the RavenXT series, the maximum cable length is 20 ft (6 m). Customers who require lengths longer than the maximum recommended length should use the COAXNTN-L cable with a 19533 surge suppressor.
The SC932A is one of three choices for attaching the modem to the datalogger. This interface connects the RavenXTG with the datalogger's CS I/O port. The SC932A is recommended for mixed-array dataloggers.
The 18663 is one of three choices for connecting the modem with the datalogger. This null modem cable attaches directly to the datalogger's RS-232 port. It is the only choice available for using a RavenXTG modem with a CR200-series datalogger.
Standard Temperature Testing range is -25° to +50°C. Individual units are warranted to perform within published specifications over this range, which is included with product purchase.
-XT -55 to +85C
Extended Temperature Testing over the -55° to +85°C range is also available. Individual units are subjected to performance tests at these extremes in a test chamber. Units that pass the tests are certified as extended temperature units.
Please note that manual operation of the "Program" button in SC105s may be compromised at extended low temperatures (-25° to -55°C). The program button is used only when configuration settings are being manually downloaded to the device from a computer.