UHF / VHF Radios

Radio / UHF / VHF Radios

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About UHF / VHF Radios

Campbell Scientific's narrow-band RF systems consist of a radio modem and a low-powered transceiver at the remote station(s), and a transceiver connected to a modem or base station at the computer site. Up to 254 stations can be interrogated over a single UHF or VHF frequency.

Retired Products
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Product Line

AL200X ALERT2 Modem and Sensor Interface

The AL200X is an ALERT2 modem and sensor interface for use in critical flood warning weather systems. It meets the ALERT2 standards maintained by the National Hydrologic Warning Council (NHWC) and ALE...read more

UHF / VHF Radio Accessories

Other Considerations

AL205B ALERT2 Base

The AL205B is an ALERT2 receiver that is configured to support receiving ALERT2 messages typically used at base stations. The AL205B is configured with a radio receiver. Three serial ports allow for i...read more

AL205E ALERT2 Encoder

The AL205E is a low-power ALERT2 encoder/transmitter with one radio output port for data transmission (TX only). With its two serial ports, input from several devices is possible—including from...read more

AL205R ALERT2 Repeater

The AL205R is an ALERT2 repeater/transceiver that is configured to support repeating ALERT2 messages. With two radio I/O, independent receiving and transmitting radios are supported. Three serial port...read more

RF500M Radio Modem

The RF500M is a versatile radio modem for networks with UHF/VHF radios, typically serving as an interface between the data logger and radio. In addition to serving as a field modem connected to a dat...read more

AL200 ALERT2 Encoder, Modulator, and Sensor Interface

The AL200 is an ALERT2 encoder and modulator that supports ALERT2 and ALERT-concentration services. It meets the ALERT2 standards maintained by National Hydrologic Warning Council (NHWC) and ALERT Use...read more