RF Survey is required to provide a wireless solution that will deliver the required wireless coverage, data rates, network capacity, roaming capability and Quality of Service (QoS). The survey usually involves a site visit to test for RF interference, and to identify optimum installation locations for access point.
The design of sites is critical not only to optimal functioning of the system, but also to reducing running O&M costs, assuring safety of personnel, enhancing quality of service and extending cycle time.
Site Survey
Site survey is carried out to find out suitable location for BTS cell site giving best desired result on RF. Site Survey is done after the RF planning. RF planning data is created based on indoor & outdoor coverage criteria in the circle where mobile services are to be provided. Site survey is important because it gives visual details to RF planner. Based on these details planner can create better model.
Tools used during the RF survey:
- GPS
- Digital Camera
- Magnetic Compass
- MapInfo/GoogleEarth
Site Design
- The design of sites is critical not only to optimal functioning of the system, but also to reducing running O&M costs, assuring safety of personnel, enhancing quality of service and extending cycle time.
- All design and construction drawings and specifications for a new site are provided by SITEG Telecom engineering teams ensuring that the design is adequate for the site conditions and customer approved prior to construction.
Site walks and Site layout
- Access and load considerations
- Fabrication area for construction activities
- Temporary power, Utility sources and Resources needed
Geotechnical considerations
- Size and shape of the guy anchors if applicable
- Tower and shelter foundations
- Grounding system design and Soil resistivity
Temporary facilities
- Access and communications
- Water, light and power
- Waste removal and dumpsters
- Storage and security
- Staging, fabrication and construction areas
Electrical supply and/or generators
- Poles required
- Meter if applicable, ATS, MDB
- Point of entrance and cable runways
- Rectifiers, UPS, batteries, generator, breakers, wiring
Tower design
- Self supporting, guyed, monopole, stub or pole
- Tower and antenna mounts heights and azimuths
- RF and MW antenna loading and future growth, cable runways
- Wind load, twist and sway
- Platforms, ladder or pegs, marking and lighting
Shelter or equipment room design
- Amount, type, weight, size and configuration of equipment and ancillaries to be housed, along with adequate space for movement and systematic growth of communications equipment outwards
- Shipping and delivery issues, weight and size concerns
- Heat insulation, lighting, grounding, power, alarm system, fire fighting, feed-through, door, RF, cable trays, anti-static, etc.
- Floor plan and equipment connectivity
HVAC design
- Temperature, humidity, and cleanliness requirements
- Site specifications for construction materials, insulation type, size and distance, existing conditions, and predicted growth
- Thermal loading of equipment including future growth
- Ambient outside temperature
- lead Delay kit, lead–lag cycle, alarms, economizer, emissions, automatic shutdown, redundancy, seismic design, etc.
Site development drawings
- Site plan, existing and/or new road profiles
- Grounding system drawings
- Drainage requirements, grading and sediment control plan
- Utility plan and installation details
- Shelter, tower and relevant foundation plans
- Fence enclosure and guy anchor fence if applicable
