© 2014, 2015

Campbell Scientific

October 2, 2015

Specifications

Type: Frequency Hopping Spread Spectrum (FHSS) Transceiver

RS-232 Baud Rate: 1200 bps to 115200 bps

Channel Capacity: 7 hop sequences share 25 frequencies

Frequency Hopping Patterns: 7 different selectable patterns

Frequency Control: Direct FM

Receiver Sensitivityc: -109 dBm

Operating Temperature Range

Standard: -25° to 50°C

Extended: -40° to 85°C

LEDs: Power on, TX, RX, diagnostics

Transmitter Power Output: 5 mW to 230 mW, software

configurable

Power: 9 to 16 Vdc

Average Current Drain

Transmit: < 80 mA (250 mW TX Power)

Receive: 15 mA

Stand-by: < 0.5 mA (depending on power saving mode)

Certifications

United States (FCC Part 15.247): MCQ-XB900HP

Industry Canada (IC): 1846A-XB900HP

RoHS compliant

C-TICK Australia: Yes, N3013 (RF411A only)

Antenna Connector: Reverse polarity SMA (RPSMA)

USB Type B Jack

RS-232 Connector: 9-pin D-sub female (4 wire: Tx, Rx, CTS, GND)

CS I/O Connector: 9-pin D-sub male

Power Connector: 2.5 mm DC power jack

Dimensionsd: 11.1 x 6.9 x 2.7 cm (4.4 x 2.7 x 1.1 in)

c

Campbell Scientific protocols will issue retries wherever a bit error occurs.

d

Dimension 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.

System Components

Radios

A spread spectrum radio needs to be at both the base station

and field site. The chart below shows the spread spectrum radios

that each model can communicate with:

Model

Where Used

Frequency

Communicates With

RF401A

U.S., Canada

910 to 918 MHz

RF401A, RF401, RF400, RF430,

CR206(X), CR205, AVW206

RF411A

Australia,

New Zealand

920 to 928 MHz

RF411A, RF411, RF410, RF431,

CR211(X), CR210, AVW211

Powering the Radio

At the base station, the radio typically uses ac power that is either

supplied by the #15966 wall charger or through the PC via the USB

port and cable. At the field site, the radio is typically powered by

the datalogger through the CS I/O port. The #14291 Field Cable

can also be used to connect the radio to an appropriate 12 Vdc

power supply. This field cable is required when the radio is con-

nected to the datalogger’s RS-232 port instead of the CS I/O port

or when the datalogger was purchased before December 1997.

Antennas

Campbell Scientific offers a variety of antennas for this radio. The

following inexpensive, omnidirectional whip antennas connect

directly to the radio (no cable required) and can transmit short

distances (up to 1 mile).

14204 0 dBd, 1/2 wave with right-angle joint

15731 0 dBd, 1/4 wave with 5.1 cm (2 in) length

15730 0 dBd, 1/4 wave with right-angle joint

The 15970 dipole antenna includes adhesive for

window or wall mounting and a cable for connecting

to the radio.

Our higher gain #14221 omnidirectional and #14201

Yagi antennas require a cable to connect them to the

radio. The #31314 surge protector is available for sus-

ceptible to lightning or electrostatic buildup or when

the cable length needs to be longer than 3 m (10 ft), as

measured between the transceiver and the antenna.

80 Hathern Road, Shepshed, LE12 9GX, UK | +(0)15090 828888 | sales@campbellsci.co.uk | www.campbellsci.eu

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