Wednesday14 Group2
From School2007
Dairy: Wednesday 14 February 2007 by Felix Ndayirukiye, Burundi.
Contents |
[edit] Site Survey and Antenna Mounting Considerations (by Prof. E. Pietrosemoli)
This wednesday, the sun is shining since the early morning. At 9h we start the morning sessions with Prof Ermano Pietrosemoli with the topic Site Survey and Antenna Mounting Considerations .
He gives first an overview of the site survey and the tools required for this purpose. Once this task finished it is crucial to determine where to put the access point. This is essentiel before mounting wireless link coverage. He continues the lecture exposing different ways to mount antennas. Many factors and means have to be considered to perform this activity successfully. This can be risky, we have be notified that R.Flickenger fall down while doing a similar operation. At the end the lecturer insists on the fact that to determine the line of sight we don't have to forget to consider the Fresnel zone.
This first lecture terminates at 10h and we undertake a coffee break for 20 minutes.
[edit] Powering Issues (by Prof. E. Pietrosemoli)
At 10h20 the same lecturer Ermano resume with the powering issues concerning the wireless site equipements. He talked about grounding and bounding, power faults , power over ethernet. Grounding is crucial for security, safety reasons.
At 12h20 we stop for the lunch and we come back at the Laboratory at 14h.
[edit] Low-Power Devices (by Steve Okay)
At 11h30 the first lecturer is relayed by S. Okay to talk about LOW POWER DEVICES This topic covers the hardware, the software (OS), the storage media to be deployed for the low power systems. At the end he spend also a time on environmental issues such as weather damage, pests, temperature vs power, thefts and vandalism
Links for low-power systems :
* Soekris Engineering http://www.soekris.com * Metrix Systems http://www.metrix.net * Earth LCD http://www.earthlcd.com * Tri-M systems http://www.tri-m.com * “Linux Devices” http://www.linuxdevices.com
[edit] LAB : Planning Field Activities
The afternoon is scheduled for planning activities.
Prof Radicella comes to inform the participants that they have to go to the visa office to collect their permit of stay. He also informs the audience that there will be a dinner at Adriatico Guest House on Thursday 15th and asked the latest abstracts of presentations to be exposed at the end of the school to be sent this wednesday.
At 17h S. Okay gives to the participants 2 equipments to be used for the next day (Thursday), a long distance activity on wireless is scheduled. The software in the equipements is loaded and we go for dinner at 18h30.
At 21h the participants return to the lab to collect the necessary tools, to be ready to go for the outdoor activity on thursday. The remote site is Muggia and will be connected by wireless link to Galileo Guest House.
