Leszek Pruszynski Deputy Director of Multimedia Ac
Biatel SA

This deployment is an important proof point for Aperto's technology and our services team. The flexibility of PacketMAX in providing multi-sector support and management was crucial. Results have been amazing.

Point-to-Point

Aperto® Network's PacketMAX® point-to-point product line features a number of advanced technologies, several of which were introduced to the point-to-point wireless market for the first time by Aperto.

Link distance and spectral efficiency are two of the most fundamental values in any point-to-point wireless product, and Aperto excels at both of them. Aperto's Link Distance is one of the longest available in its price range. The system gives the operator the choice to use a variety of antenna types, thus enabling even larger link distances with higher gain antennae. Aperto's Spectral Efficiency (or how many bits it can pack in the available bandwidth) is one of the best in the industry. Up to 17 non-overlapping channels are made available in the 125 MHz of spectrum in the 5.8 MHz ISM band, as compared to the 4-6 channels available in most other products.

The PacketMAX point-to-point product offers a unique feature that enables the operator to synchronize multiple co-located point-to-point links. This enables the operator to do the following:

Re-use the same channel in multiple co-located links, under the constraint that any two links are separated from each other by at least 90 degrees. For example, using a single 7 MHz channel, the operator can put up four point-to-point links at a single location.
If there are multiple channels available, then several links can be co-located, under the constraint mentioned above.

Aperto uses a number of technologies to make the wireless link more robust to multipath and interference, including:

Working together seamlessly, these technologies enable the system to keep operating smoothly, even with packet error rates as high as 5-10%. This enables the system to operate in OLOS/NLOS environments, as well as in crowded license exempt frequency bands where Interference is an un-avoidable fact of life.

Aperto is alone among broadband wireless vendors in offering a Flexible Channel Size, which can vary from 7 MHz down to 3 MHz. In license exempt bands, it increases the number of available channels and makes it easier for the operator to find clean chunks of spectrum in a crowded environment.