RF411A

Name: RF411A
Brand: Campbell Scientific
SKU: RF411A
Availability: InStock

922 MHz Spread-Spectrum Radio

RF411A

OrderableConfigurable

922 MHz Spread-Spectrum Radio

Pricing

Configuration

25 to +50C (Ships as 30582, 16675, & 17648)RF411A-ST
40 to +85C (Ships as 33959, 16675, & 17648)RF411A-XT

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Model:: RF411A
Item Number:: RF411A
Warranty:: 1 year
Lead time:: 14 days

Overview

922MHz Spread Spectrum Radio

The RF411A is a 900 MHz radio designed for license-free use in several countries, including Australia and New Zealand. It provides a hassle-free way to create long-distance wireless links between your computer, data loggers, and measurement devices. The RF411A has a 920 to 928 MHz operating-frequency range and a configurable transmit-power output of 5 to 250 mW.

The RF411A is compatible with all of its RF400-series radio predecessors, including the RF410, RF411, and RF431. This also means that it is compatible with the CR210, CR211(X), and AVW211.

Note: The RF411A radios are recommended for existing installations that require compatibility with products such as the RF411, CR211, and AVW211. For new installations, Campbell Scientific recommends using the RF412 or RF451.

Technical Description

The RF411A is a frequency hopping spread spectrum radio designed for 900 MHz license-free ISM band operation. It has a 920 to 928 MHz operating-frequency range and a configurable transmit power output of 5 to 250 mW. It provides one of three selectable active connections including CS I/O, RS-232, and USB. It has a reverse polarity SMA (RPSMA) antenna jack connection. It is over the air compatible with legacy 9XStream products including the RF410, RF411, RF431, CR210, CR211(X), and AVW211.

Benefits

Rugged, low-cost transceivers
Can be used in the field as a transceiver or in the office as the base station
Transmits up to one mile with omnidirectional antenna; up to 10 miles with higher gain directional antennas at ideal conditions
Settings stored in non-volatile memory
RS-232 port for connecting to a computer; CS I/O port for connecting to a data logger
Frequency-hops over 25 channels avoids interference from other spread spectrum radios
Optional extended temperature testing
Faster communication due to elimination of some small "link state packets"
Ability to have stand-alone RF router/repeaters (up to 8 repeaters)
Greater immunity to interference and RF collisions by using RF retries
Reduced power consumption by the data logger, as the radios perform "packet address filtering"
Built-in setup menus allow access to advanced functionality
Designed for use in PakBus networks

Specifications

Radio Type: Frequency Hopping Spread Spectrum (FHSS)
Frequency: 920 to 928 MHz
Country Used In: Australia, New Zealand
Transmission Distance: -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
Transmission Distance: Up to 1.61 km (1 mi) with omnidirectional antenna; up to 16.09 km (10 mi) with higher-gain directional antennas at ideal conditions
Power Output: 5 to 250 mW
(software-selectable)
Receiver Sensitivity: -109 dBm
(Campbell Scientific protocols will issue retries wherever a bit error occurs.)
Channel Capacity: 7 hop sequences share 25 frequencies.
RF Throughput Data Rate: 9.6 kbps
Data Rate: 10 kbps
Antenna Connector: Reverse Polarity SMA (RPSMA) jack
LEDs: Power on, Tx, Rx, diagnostics
RS-232 Baud Rate: 1200 to 115200 bps
CS I/O Modes: SDC 7, 8, 10, 11, and ME master
Average Current Drain: Transmit: < 80 mA
(250 mW TX power)
Average Current Drain: Receive: 15 mA
Average Current Drain: Stand-by: < 0.5 mA
(depending on power saving mode)
Power: 9 to 16 Vdc
Power Connector: 2.5 mm DC power jack
Operating Temperature Range: -25° to +50°C
(standard)
Operating Temperature Range: -40° to +85°C
(extended)
Communication Ports: RS-232 9 pin D female
Communication Ports: CS I/O 9 pin D male
Communication Ports: USB Type B jack
Service Requirements: Shares frequency with other devices.
Must not cause harmful interference to licensed radios. Requires line-of-sight.
Dimensions: 11.1 x 6.9 x 2.7 cm
(4.4 x 2.7 x 1.1 in)
Dimensions are from the tip of antenna connector to other side of case, and from the bottom of case to the top of DB9 connector jack screw. The width includes the thickness of the screw heads on the screws that hold the case together.
Weight: 136 g
(4.8 oz) without "Ships With" items
Weight: 283.5 g
(10 oz) with "Ships With" items