Features & Technology

Outdoor architecture
Our systems use an outdoor-mounted unit (ODU) with either an integrated antenna or a connector for external antennas, providing ultimate flexibility of deployment. Extremely reliable, our robust outdoor systems operate even in extreme temperatures.

A single CAT-5 cable connects the outdoor radio unit (ODU) to the indoor unit (IDU) which provides both power and a standard LAN connection for data and management.

The ODU comes in two different form factors:

1. ODU with integrated 1ft flat panel antenna (available for most frequencies).
2. ODU with a connector for an external antenna (N-type Female connector)
   

External antenna support
Alloyant offers integrated and external antennas in different gains, sizes and shapes for each of the frequency bands supported by StreamLine. Third party external antennas can also be used. Integrated antenna models of StreamLine offer a medium range – up to 35km, while external antenna models can be used with high-gain antennas to maximize range up to 80km.

Support for multitude of frequency bands
Multiple frequency bands ensure that a StreamLine link can be installed anywhere in the world where unlicensed frequencies are open or unregulated.

Stable, advanced radio technology
StreamLine uses OFDM (Orthogonal Frequency Division Multiplexing) physical layer.
OFDM is the most efficient radio physical layer for long-range, non-line of sight broadband wireless systems. Resilient to interference, multipath effects, fading and Doppler shifts, this technology has been successfully tested and implemented in the harshest environments.

Unique link synchronization technology
A unique Inter-Link Synchronization (ILS) technology solves a problem found with other point to point solutions - self-interference. The system allows multiple point to point links to be installed on one site with minimum spectrum requirements and in complete harmony.

Automatic Channel Selection
StreamLine can automatically detect degradation in link performance and scan different channels to find the one with least interference, providing a more stable and reliable link even in crowded environments. It also enables deploying large numbers of links while preventing interference from other radio systems in the vicinity. ACS is an integral feature of StreamLine and is now available in all products.

Flexible channel size
Streamline is unique in that it allows the user to select the size of the wireless channel it uses. With size choices of 20, 10, and 5 MHz, it allows to vary the data rate against better interference tolerance. Since smaller channel size allows for more non-overlapping channels and is less likely to collide with an interference source nearby, this is a great way to evade interference in a noisy or crowded environment.

Automatic Transmit Power Control
This feature automatically adjusts the transmit power of the StreamLine system to ensure that it operates with a high degree of reliability while generating the least amount of interference. Supported in all StreamLine products, ATPC helps avoid co-location interference.

Adaptive Modulation technology
Adaptive Modulation is a smart, automated technique to maintain a radio link even through conditions that would cause a regular wireless data link to fail (severe fading, multipath, interference, obstructions, etc.) When adverse radio conditions occur, the Adaptive Modulation engine detects the signal degradation and automatically shifts down to a lower-rate, but more robust modulation mode.

Graphical management software
A dedicated, graphical software tool – the Link Manager – provides complete management for all your StreamLine links and units via a single IP address. The intuitive, easy-to-use software has a graphical Windows-based interface, and can be used locally and remotely.

The main thing that should be done before installing a link is to plan it. A link planning utility is provided – allowing installers to estimate performance and plan link budget, choose appropriate antennae and StreamLine models with a few mouse clicks.

Link Manager provides:

• Link planning tools
• Link Installation Wizard
• Realtime monitoring of link quality
• Realtime monitoring of alarms and QoS
• Link and unit configuration
• On-line user manual and help
• Over-the-air software upgrades
  

Fast, easy installation
A built-in audible installation helper makes the installation’s antenna lineup procedure a breeze. The helper uses audio signals (beeps) to indicate received signal strength, providing live feedback to the installer and significantly speeding the setup process.