Seven years ago we set out to become the best high speed wireless integrator and Var to Var distributor in the world. I believe we’re on the right track. If you decide to give us a try, let me know how you think we’re doing.

-Peter Schoon, Founder and Pres.

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FastE / GigE Free-Space Optics & 60-80GHz RF Links

#1 experienced Link source in the world.

Availability

Link availability is typically expressed as "n-nines" where n is "five" for 99.999% availability (< 5.3 minutes of outage per year), "four" for 99.99% availability (< 53 minutes of outage per year), etc. Note that an "outage" may not actually mean that data is no longer delivered by the link, but rather indicates that the data bit error rate (BER) is elevated above a specified level (which varies by manufacturer). BridgeWave quotes link availability based on when the BER exceeds one error per trillion bits (10ˆ-12 BER). However, other manufacturers routinely specify link availability based on less stringent BER limits. The main factors in determining the availability of 60-80 GHz links are heavy rainfall probabilities and distance.

Rainfall and 60 GHz Radios

Like all radio links that operate above 10 GHz, intense rainfall significantly limits the distance over which 60 GHz links can transmit data error-free. Rainfall statistics have been extensively studied throughout the United States to support millimeter-wave link deployments, primarily for cellular telephone network backhaul. These statistics allow us to determine how many minutes per year a 60 GHz link of a given distance will be impaired due to short periods of intense rainfall. Note that intense rainfall occurs in relatively small, fast-moving rain cells, therefore these events are short-lived for any specific location. Based on the availability requirements of the application, the maximum link is determined based on the rainfall zone where the link is to be deployed using the following chart (that already includes the constant effects of oxygen attenuation). The BridgeWave radios outperform other 60 GHz radios due to the inclusion of a strong Forward Error Correction (FEC) code that is transmitted with the data. FEC provides another 6dB of link margin by correcting most of the errors due to heavy rainfall. This allows for up to 30% longer link distances.

80 GHz Radios

The recently approved FCC licensed 80GHz spectrum provides dramatically extended GigE link distances. And license promulgation is very quick and easy. so much so, that we are currently performing it at no additional charge with link orders.

Calculating Link Availability

Rain zones used to be used to estimate the average availability of an RF link at a given distance at a location in a large geographic area (rain zone). Now, however, much more precise estimates are available due to new highly granular USGS data. For a precise estimate for your specific application, please complete the following form, and we will email the estimate to you.

RF Transceiver Make
RF Transceiver Model	FE60 FE60X GE60 GE60X AR60 AR60X GE80 GE80X FE80U FE80UX Calculate to match quote request link
Link Distance in Meters
Throughput	Gigabit Ethernet (Full Duplex) Fast Ethernet (Full Duplex) Gigabit Ethernet w/Adaptive Rate 100Mbps Fallback
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