Campbell RF400 Uživatelský manuál Strana 1

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Spread Spectrum Radio Modems
Models RF400, RF410, RF415
Spread spectrum radios spread the normally narrowband informa-
tion signal over a relatively wide band of frequencies. This allows
the communications to be more immune to noise and interference
from RF sources such as pagers, cellular phones and multipath.
1
The RF400-series modems reduce susceptibility to RF interference
from other spread spectrum devices by providing user-selectable
frequency hopping patterns.
The RF400-series spread spectrum radio modems support point-to-
point and point-to-multipoint datalogger communications. They
can serve as a field modem/radio while connected to the datalog-
ger or as a base station modem/radio when connected to a
computer. The RF400-series modems can also be used for general
purpose wireless data communications.
Features
Individual FCC license not required
2
Up to one mile transmission range when using inexpensive omnidirectional antennas (shown). Up to 10 mile
transmission range when using higher gain directional antennas at ideal conditions (please note that line-of-
sight obstructions and RF interference will affect transmission distance)
Low power consumption
9-pin CS I/O port that connects directly to the datalogger (no additional interface required)
9-pin RS-232 port that connects directly to a computer serial port or other RS-232 device
25-channel frequency-hopping radio
Built-in simplified and advanced setup menus for configuring port modes, network/radio addresses,
hop table, and power saving modes
Setup that allows different addresses for multiple dataloggers in a point-to-multipoint network
(call about repeater capability)
Settings stored in non-volatile memory
1. The operating frequency band of these radio modems may be shared with other non-licensed services such as cordless telephones
and with licensed services including emergency, broadcast, and air-traffic control.
2. RF400-series modems, like all FCC Part 15 devices, are not allowed to cause harmful interference to licensed radio communica-
tions and must accept any interference that they receive. Most Campbell Scientific users operate in open or remote locations
where interference is unlikely. If there is a problem, interference can be reduced using methods such as moving the device,
reorienting or using a different type of antenna, or adding RF shielding. We recommend the use of licensed UHF or VHF
narrowband frequencies for critical communication links.
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Shrnutí obsahu

Strany 1 - Spread Spectrum Radio Modems

Spread Spectrum Radio ModemsModels RF400, RF410, RF415Spread spectrum radios spread the normally narrowband informa-tion signal over a relatively wide

Strany 2 - Ordering Information

Ordering InformationRF400 900 MHz Spread Spectrum Radio/Modem (US/Canada)RF410 922 MHz Spread Spectrum Radio/Modem (Australia/Israel)RF415 2.4 GHz

Strany 3

RF415 antennas2.4 GHz, Indoor Omnidirectional 16005 0 dBd, ½ wave whip articulating. RPSMA connector connects directly to radio; no antenn

Strany 4 - Specifications

Copyright © 2001, 2004Campbell Scientific, Inc. Printed November 2004Specifications Operating Frequency: 910 to 918 MHz RF400, 920 to 928 MHz RF410

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