RF320 VHF Radio Transceiver
Rugged, Long Range
Long-distance option for communication
weather applications supported water applications supported energy applications supported gas flux and turbulence applications supported infrastructure applications supported soil applications supported

Overview

The RF320 is a 136 to 174 MHz radio. Campbell Scientific’s RF320-series narrowband UHF/VHF radio transceivers provide a long-distance telemetry option for communicating with remote measurement stations. Each radio includes a configured Ritron DTX-L radio, a mounting bracket, and a cable for connecting the radio to a radio modem. The different models vary by the frequency ranges they support.

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Specifications

Ritron Module DTX-145
FCC ID AIERIT17-145
Industry Canada ID 1084A-RIT17145
FCC Rule Parts 90
Industry Canada Rule Parts RSS-119
Frequency Range 136 to 174 MHz
RF Channels 8 independent Tx/Rx frequencies
Synthesizer Step 2.5 kHz
Channel Spacing 12.5 kHz
Frequency Stability ±2.5 PPM (-30° to +60°C)
Input Voltage 9 to 17 Vdc
Antenna Connector BNC female
Dimensions 14.5 x 7.6 x 3.5 cm (5.7 x 3 x 1.375 in.)
Weight 0.2 kg (7.3 oz)

Current Drain @ 12.5 Vdc

Receive Standby 25 mA
Transmitter
  • < 0.9 A (2 W output)
  • < 1.2 A (5 W output)

Receiver

Receiver Type 12.5 kHz narrowband
Sensitivity 0.25 μV (12 dB SINAD)
Adjacent Channel -60 dB
Receiver Attack Time < 10 ms (Tx to Rx)
Noise Squelch Sensitivity PC adjustable (factory set for -121 dBm)

Transmitter

RF Power Output 2.0 W or 5.0 W (@ 12.5 Vdc)
Duty Cycle 50% (< 13.5 V, 5 W output, 25°C)
Voice Emissions Designator 10K0F3E
Data Emissions Designator 9K8F1D, 11K0F2D, 11K0F3D
Transmitter Attack Time < 10 ms

Compatibility

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Data Loggers

Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired) This data logger is only compatible if the RF500M radio modem is used.
CR1000X This data logger is only compatible if the RF500M radio modem is used.
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR23X (retired)
CR295X (retired)
CR300
CR3000 This data logger is only compatible if the RF500M radio modem is used.
CR310 This data logger is only compatible if the RF500M radio modem is used.
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR6 This data logger is only compatible if the RF500M radio modem is used.
CR800
CR850
CR9000 (retired)
CR9000X (retired)

Communication Devices

Compatible Note
RF310 (retired)
RF310M (retired)
RF315M (retired)
RF500B
RF500M

FAQs for

Number of FAQs related to RF320: 2

  1. No. The RF500M cannot be directly interfaced with a GPS receiver. However, most Campbell Scientific data loggers can be interfaced with the output from a GPS receiver and programmed to extract the positional information. This information can then be accessed via an RF500M/RF320 RF link.

  2. It is possible to connect two antennas to a single radio via a properly specified (operating frequency and power handling capability) two-way, 50 ohm RF power divider. One example of this type of power divider is offered by Pasternack. Note that using a device like this will induce additional losses into the system (3 to 4 dB, typically).