Monday, October 01, 2007
Devil's Head Indoor Antenna
This morning I just blogwalking and find this picture of Indoor Antenna here. I don't think I would be like it to have it on my room. It can make me have bizzare dream. But wait, it looks like Master Yoda also, but only if Yoda had too much sunbathing of course.
Wednesday, July 04, 2007
Wireless Communication System Towers
Site Survey:
After a location is selected for a cell base station, a contractor is chosen to erect the tower. The next step in the tower construction process is the evaluation of the proposed location. It is the responsibility of the party erecting tower to research deed resctrictions in order to avoid conflict with the neighboring property owners and any local and state agencies.
The tower site should also be free of overhead obstructions such power lines and trees, and foundation area should be void of utility lines or pipes. The preferred site should undergo a comprehensive soil analysis to deteremine whether the ground will adequately support the structure and what type of grounding system will be required to meet grounding standards. Soil testing should be conducted by a soil engineer who is familiar with tower and foundation construction. Testing procedures should encompass multiple geological core samples from accross the site. Detailed soil analysis will weed our undesirable locations such as all-rock terrain, swampy, or sandy areas, or even old, plowed-under farm fields. Soil testing should also be done to determine if there any toxic waste on the site. If the site is purchased by a wireless carrier and toxic waste is found afterward, the new owner (the carrier) must pay to have the waste cleaned up.
After a location is selected for a cell base station, a contractor is chosen to erect the tower. The next step in the tower construction process is the evaluation of the proposed location. It is the responsibility of the party erecting tower to research deed resctrictions in order to avoid conflict with the neighboring property owners and any local and state agencies.
The tower site should also be free of overhead obstructions such power lines and trees, and foundation area should be void of utility lines or pipes. The preferred site should undergo a comprehensive soil analysis to deteremine whether the ground will adequately support the structure and what type of grounding system will be required to meet grounding standards. Soil testing should be conducted by a soil engineer who is familiar with tower and foundation construction. Testing procedures should encompass multiple geological core samples from accross the site. Detailed soil analysis will weed our undesirable locations such as all-rock terrain, swampy, or sandy areas, or even old, plowed-under farm fields. Soil testing should also be done to determine if there any toxic waste on the site. If the site is purchased by a wireless carrier and toxic waste is found afterward, the new owner (the carrier) must pay to have the waste cleaned up.
Mobile Telecommunication Vocabulary
1G First Generation
2G Second Generation
3G Third Generation
3GPP Third Generation Partnership Project
APN Access Point Nama
ATM Asynchronous Transfer Mode
AUC Authentification Centre
AXU ATM Switch Unit
BSC Base Station Controller
BSS Base Station SubSystem
BTS Base Transceiver Station
CDMA Code Division Multiple Access
CDR Call Detail Record
CN Core Network
EDGE Enhance Data Rate for GSM Evolution
FH Frequency Hoping
GPRS General Packet Radio System
GSM Global System for Mobile Telecommunication
GSN GPRS Support Node
GW Gateway
HLR Home Location Register
2G Second Generation
3G Third Generation
3GPP Third Generation Partnership Project
APN Access Point Nama
ATM Asynchronous Transfer Mode
AUC Authentification Centre
AXU ATM Switch Unit
BSC Base Station Controller
BSS Base Station SubSystem
BTS Base Transceiver Station
CDMA Code Division Multiple Access
CDR Call Detail Record
CN Core Network
EDGE Enhance Data Rate for GSM Evolution
FH Frequency Hoping
GPRS General Packet Radio System
GSM Global System for Mobile Telecommunication
GSN GPRS Support Node
GW Gateway
HLR Home Location Register
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