RAD Data Communications has unveiled its new Airmux-400 broadband wireless multiplexer, a full-duplex, 50-Mbps multi point-to-point broadband wireless transmission device using license-free 2.3 to 2.5 GHz and 4.9 to 5.9 GHz bands.
RAD’s Airmux multiplexers consist of an outdoor unit and an indoor unit with redundant DC power supplies. The outdoor unit is suitable for mast or wall installation. An optional external antenna guarantees a transmission range of up to 120 kilometers.
Wireless Internet Service Providers (WISPs) can use the Airmux-400 to backhaul their traffic from the point of presence (POP) to the network operation center to achieve higher capacity. The Airmux-400 also provides broadband Ethernet and leased line services to large enterprises and is ideal for networks spanning multiple sites that require transparent LAN connectivity across their campuses.”
RAD says their Hub Site Synchronization (HSS) ensures simultaneous, multi point-to-point data transmission for all collocated radios by eliminating the interference that otherwise occurs when different outdoor units transmit and receive from the same site. HSS, which supports up to 16 collocated units, enables a complex radio environment of mixed services.
The Airmux-400 uses MIMO and OFDM, with data transmitted over the air encrypted using Advanced Encryption System (AES) with a 128-bit encryption key.
RAD says their device adaptively changes the modulation according to air conditions, targeting maximum rate while maintaining link stability. When the link quality is out of limits, the Airmux-400 automatically searches for a clear channel within a pre-selected list of frequencies.
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