Patrick McMahon's B-Log

Wireless Point to Point Link AKA Radio Link

Laser:
- Up to 1000 Mbps data rate
- Doesnt work in Fog
- Needs a fixed Building/Heavy masts
- 0.01 Degree of an angle for picking up signal

Class Licence Microwave:
108Mbps - operates in the 5.8 and 5.4Ghz ranges.
- Approx 20-25Mbps HALF DUPLEX Actual Speed
- 5.4Ghz could half link speed
- could run 2 x 108mb connections.
- Need Maintenance

300Mbps - Uses OFDM (which is basically 2 recievers, so that a signal is always picked up)
- Motorolla PTP-600
- Has Auto Channelling
- Approx 80-120Mbps HALF DUPLEX Actual Speed
- 8 Degree angle for picking up signal. so if it moves it will still connect full speed.
- Need Maintenance
- Performance is affected by line of sight and weather.

Self Regulating Licence Microwave:
1000Mbps - 1000Mbps Full Duplex Actual Speed
- 99.96% Avaliability, works out to approx 3 hrs a year min downtime. (will be used 2300 hours out of 8736)
- Runs on 70Ghz Range
- Greater than 10x the speed of 300Mbps
- Need Line of sight test
- Need Building Permit, Proper/New Masts, Engineering Permit.
- Need Maintenance
- 0.4 of a degree angle for picking up signal.


Basic outline of Wireless Point to Point Links.

I have been investergating this technology over the past few months. Basically what i have concluded is for our school the Self Regulating Licence Microwave would be the best and fastest.
as we dont need 100% uptime.

We will actually be using a mix of the Self Regulating Licence Microwave and Class Licence Microwave: 108Mbps. so that we can have full uptime, with just a slower speed when the main link is down.

:D

Labels: Bridgewave, Point to Point, Radio Link, Wireless

posted by Technoicon @ 9:20 AM