Radius provides highly innovative wireless communication systems, industrial automation and remote control systems. Based on world leading technology and expertise, Radius designs, manufactures and delivers turn-key solutions that operate in the most demanding of environments. Exceeding the expectations of its customers and stakeholders, guided by a clear strategic platform, strong values and challenging financial targets, Radius has become a global leader.
PDR
The Radius PDR is an advanced VHF/UHF digital radio designed for wide area remote monitoring and control applications, encompassing point to multi-point communication with peer-to-peer compatibility. The PDR is available in either a transparent or a protocol decoding version with standard or high power options available.
- Wide Area Coverage
- Collision Avoidance Technology
- Forward Error Correction
- Easy to Install
- 128-Bit Encryption
- Remote Diagnostics and Programming
- Adjustable Power
- Exceptional Receiver Sensitivity
- Selectable Master/Slave/Repeater Mode
- Remote Frequency Change
- Test/Maintenance Functions
- High Speed
- Message Routing
- Real-Time Radio System Monitoring
- High Temperature Rating +65oC
With increasing demands on companies to have greater, more reliable and secure control of their remote equipment, simple point-to-point data communications links are no longer meeting the needs of the user.
To meet these increased demands Radius has developed a digital data radio with exceptional signal recovery in order to transmit data over large distances. But since that alone is not enough, each digital data radio can retransmit a message to another data radio in order to greatly increase area coverage.
PDR 121 - Protocol Decoding Radio
The PDR 121 incorporates many of the standard communications protocols, but because there are so many available there is also an option to configure the radio for other open or proprietary protocols.
The PDR 121 has a unique repeating technology which allows up to 6 hops, i.e. 7 radios in any 1 chain, giving the ability of real wide area coverage to overcome the problems of difficult terrain.
Another important feature is the Forward Error Correction (FEC) which has a very low data overhead but allows the recovery of up to 30% of corrupted data, equivalent to an additional 5dBm of signal. This, combined with the superb receiver sensitivity, means that the PDR 121 can be used in systems where normally much higher output power would be required to achieve the desired coverage.
With the over-the-air data rates of up to 19.2 kbps combined with fast data turnaround, a unique collision avoidance system is needed in the PDR 121 to minimize the risk of collisions of simultaneous and cascading events on a RTU network. The basic strategy is that the PDR 121 always listens to the radio channel. If it detects a transmission from another radio, it will wait until the ongoing transmission is finished. It is still possible that two, or more, radios listen to the channel, consider it free and start transmitting simultaneously. Configuring a random back-off delay time, called Collision Avoidance Delay, solves this issue.
The PDR 121 is supplied with local and remote test/diagnostics functions and 128-bit encryption which are essential features in today’s increasingly wireless environment. The ability of remote programming of key parameters such as transmit power and frequency are also available. This provides a digital radio that is flexible, adaptable and suitable for most requirements and conditions.
Configuration is via standard terminal software from built-in menus, all features are available in all radios and all radios are identical so there is no need to buy separate base stations, outstations and repeaters. You decide what features are enabled and what job you want the PDR 121 to do, and at the same time reduce your service spares holdings.
PDR 221 - Transparent Radio
The PDR 221 has all of the same features as the PDR 121, except for only 1 repeater per system. But because it is transparent it has the advantage of very low latency (no buffer) so it provides even faster data turnaround and is ideal for any system requiring point-to- multipoint, peer-to-peer or even an all-informed network. A PDR 221 network can have up to 254 slaves and 1 master and again you decide via the simple configuration menus which unit does which job.
Options
Duplicated radio units with hot standby & auto-changeover (HSC 100) for increased security, Modbus I/O Telemetry Module (T-Mod) for data handling and remote radio network diagnostics software (RND 100) for increased control, are also available.
Please Click Here for Specifications.
