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“A well-executed site survey is not just a technical formality; it is the blueprint that ensures every smart meter has a voice and every drop of data is heard.” – MJ Martin

A site survey is a foundational step in the successful deployment of an Advanced Metering Infrastructure (AMI) network. Its purpose is to evaluate environmental, structural, RF, electrical, and logistical conditions to determine the optimal placement of network infrastructure gateway and ensure reliable data communication between smart meters and the headend system. Here is a detailed look at the anatomy of a site survey for an AMI network, particularly in a Canadian municipal context:

1. Pre-Survey Planning

Before fieldwork begins, the utility or engineering consultant gathers background information to inform the survey process.

Preparation Tasks and Materials

  • Service area GIS maps: Parcel data, zoning, utility pole locations, elevation profiles
  • Meter counts and density: Urban, suburban, rural breakdown
  • Existing infrastructure: Locations of water towers, substations, streetlights, or city-owned buildings
  • Regulatory compliance: Spectrum licensing (e.g., Industry Canada), tower zoning bylaws, and safety standards
  • Determine the technical strategy, if possible, before starting the process of conducting a site survey
  • Secure hard-copy government topographical (topo) maps of the area with a scale of 1:50,000 and 1:250,000
  • Secure a street road paper map of the area
  • Secure aviation paper maps of the area
  • Secure marine paper charts of the area, if applicable
  • Locate the end and intermediate points of the path and identify the latitude, longitude, and elevation data
  • Document the waypoints in a MS Word / MS Excel document
  • Search the tower database for collocation opportunities
  • Review the DOT Fight supplement for aviation coordinates and data
  • Create a map overview with the path overlaid in MS Visio and incorporate into the MS Word report document
  • Run a path profile and calculate any obstructions and Fresnel clearance issues
  • Determine the path performance and reliability
  • Set the performance specification for the links and size, power, antennas, etc.
  • Check local weather conditions (related to the visit itself and from the perspective of signal attenuation)
  • Check to ensure coordination of the site access issues (gate keys, permissions, escorts, jurisdictions, health and safety [radiation])
  • Assemble the site survey kit for the field work
    • GPS, with fresh batteries
    • Binoculars (spotting scope or high-power binoculars are sometimes required depending upon the path length)
    • Digital camera (telephoto lenses and high quality, low light photography with suitable polarizing and UV filters are sometimes required depending upon the path length)
    • Compass (x3) – electronic fluxgate, magnetic (high grade), magnetic (low grade)
    • Inclinometer
    • Laser distance measuring device with triangulation for height measurements
    • Tape measure (50’ or 100’ preferred, 25’ minimum0
    • Topo maps and lat / long snapshot sheet
    • Pencil and pad for notes
    • Backpack carrying bag so hands can be free to climb on rooftops and awkward locations
    • Suitable clothing (weather – temperature and rain) and safety equipment (shoes, hardhat, etc.)
  • Ensure that all required preparation work is completed before departing for the field work

2. Field Survey Execution

This stage involves physically inspecting the target deployment area with specialized equipment.

  • Follow the signal flow from source to destination – this will guide your workflow
  • Locate the first site and capture GPS readings (latitude / longitude / elevation)
  • Observe path orientation (azimuth) towards the endpoints and record any concerns (obstructions)
  • Search for, and record, any potential sources for terrestrial interference (heat pumps, air conditioners, mercury vapor lights, degraded high tension power lines / right of way, Doppler radar (ships, aviation weather, etc.), flight paths and related aviation radio systems
  • Estimate tower or mounting locations and measure for desired elevations
  • Calculate inter facility links (IFL) – Ethernet, coaxial cable, or waveguide – runs path and run lengths
  • Document any observations regarding other adjacent radio installations – other antennas, condition of structure, tower health for rust, grounding, lighting, for referral to the structural engineer performing the assessment of the structure
  • Measure heights and estimate orientation of other antennas for compatibility
  • Determine if line of sight to the desired endpoints is achievable
  • Can an existing shelter / hut / building be used or will a new shelter need to located on the site? Where will you house the indoor equipment?
  • Where would the new shelter be positioned on the site?  Is there access to the site for the shelter delivery?  What concerns are there for the IFL runs?
  • Is power available at this site? What sort of power? Is a new panel required? A larger transformer?
  • How is the site / rooftop / tower grounded? 
  • How is the shelter grounded?
  • What kind of grounds are used?  Matt? Ring? Single rod?
  • How will lightning protection be facilitated?  Where will the lightning energy be diverted and what is the impact to the site and the other site equipment – is the site collocated to a substation?
  • Is there room for a UPS (uninterruptible power supply)?
  • Is there outdoor room for a genset and fuel tank?  How will diesel be delivered?  Will the genset affect any of the site equipment? – Substation? Is special containment needed for the diesel storage tank? What if the storage tank leaks?
  • Is a preexisting shelter available at this site?  If yes, is there space for your installation? 
  • If the equipment is pre-wired off-site, can a populated equipment rack be successfully delivered to the site with a delivery truck (roads, access concerns)
  • Can the equipment rack(s) be moved into the shelter (doorway access, walk the path)? Can they stand up if delivered horizontally as the corner to corner dimensions exceed the height dimensions.
  • Do you have interior space for the rack(s)
  • How will the rack(s) be anchored?
  • Is there interior wall space for mounting any hardware systems?
  • How will the rack(s) be grounded?  What is the grounding strategy for the site?
  • How will installation crews access the sites?
  • Is any special training required to access the sites?
  • Is any special PPE clothing required to access the sites?
  • Is there space for the delivery of the equipment and racks?  Is there a loading dock or does the delivery truck need a hydraulic lift?
  • What sort of truck is needed for the delivery?  Highway tractor-trailer? Tractor-pub trailer? Straight truck? All terrain forklift rental? Dollies?  Scissor lift? Cherry picker? Gin pole? Crane?
  • What is the terrain like for the rolling on the heavy equipment? Paved? Gravel? Dirt? Patio stones? Underground vaults (load bearing for the delivery vehicle)?
  • Assess the neighbourhood for compatibility concerns. Parks? Trees? Soils?
  • Make notes, sketch drawings, and take detail multiple angle photography of the site and the surrounding area
  • Move to the next location, and repeat process

a) RF Propagation Testing

  • Using test meters and mobile data collectors to measure signal strength (RSSI), latency, and packet success rate
  • Identifying dead zones or RF shadows caused by terrain (e.g., Canadian Shield rock), buildings, or vegetation
  • Testing and estimation of signals for both uplink (meter to collector) and downlink (collector to meter) performance. The return path is always the weakest link, so favourite it first.

b) Collector and Repeater Siting

  • Evaluating potential sites for data collectors and repeaters (e.g., streetlights, utility poles, water towers, rooftops)
  • Ensuring 360-degree line-of-sight coverage when possible
  • Verifying access to power (for repeaters or collectors) and secure mounting options
  • How will these gateways be grounded?

c) Backhaul Feasibility

  • Determining how collectors will connect to the utility headend: wired or wireless – cellular, optical fibre, or microwave
  • Conducting bandwidth tests if using existing municipal infrastructure
  • Evaluating cellular carrier coverage and signal quality (RSRP, SINR)

3. Environmental and Seasonal Considerations

  • Assessing how Canadian winters, snow accumulation, or foliage changes affect signal reliability
  • Documenting risks like flood zones, ice storms, lightning area, or interference from other municipal or public RF systems

4. Electrical and Safety Checks

Confirming safe access for installation crews

  • Verifying grounding, lightning protection, and surge suppression requirements
  • Reviewing pole loading capacity and spacing requirements in accordance with CSA standards
  • check the weather every day and then monitor for change for crew safety

5. Data Analysis and Mapping

  • Uploading survey results into GIS software to create RF heat-maps
  • Optimizing the layout of the mesh or point-to-multipoint network – hop count, date rate loss per hop, routing recovery, etc.
  • Create a traffic calculation spreadsheet to predict the data rates for each leg of the journey from meter endpoint to headend
  • Identifying areas where supplemental infrastructure (e.g., additional repeaters) may be needed

6. Final Recommendations

  • A formal report is prepared with:
    • Recommended locations for collectors/repeaters
    • Expected meter connectivity rates
    • Network resilience and redundancy strategies – availability, reliability, maintainability, etc.
    • Bill of materials for infrastructure
    • Bill of materials for accessories and installation materials
    • Schedule and cost estimates for deployment

7. Post Field Work

  • Consolidate information
  • Document field notes into typed reports
  • Archive the photographs and label with meaningful names
  • Validate latitude and longitude used for path calculations with field data
  • Reconfirm the path calculations
  • Review all applicable standards documents for compliance (Industry Canada, CRTC, Safety Code 6, FCC, CSA, SMPTE, IETF, IEEE, National Building Codes, National Electrical Codes, etc.)
  • What about aviation infringement concerns?
  • Are public notification and public consolation meetings required?
  • What about city tower bylaws? Are there municipal bylaws to limit tower structures?
  • What about the Provincial regulators? Do you need to consult with them for regulatory approvals?
  • Define a data traffic model for the signals that will travel over the pathways to ensure capacity
  • Define a data storage model, if applicable
  • Define the traffic and it characteristics – contiguous, bursty, etc?
  • Define security requirements for the traffic
  • What privacy requirements are applicable?
  • Are there any data residency requirements for the traffic?
  • If TCP/IP is used, which format? – IPv4? IPv6? Are the IP addresses fixed or dynamic? What is the sub-netting strategy?
  • Define the Quality of Service (QoS) for the traffic
  • Identify the potential for RF interference and atmospheric impacts
  • Define the baseband and IF (intermediate frequency) signal loss calculations for the technology interconnections
  • List all options and alternate strategies, provide details of these strategies
  • Recommend the best strategy from the option list
  • Define the technical characteristics
  • Create graphics, tables and add images to report to enhance communications and visually describe the scenario (most people find it difficult to comprehend RF propagation as they can not see it, hear it, touch it, or relate to it in the physical world, therefore use analogies and images to best describe what the technical scenario is in this study)
  • List all assumptions
  • Define what is “in scope” and what is “out of scope”
  • Note any concerns or issues
  • Prepare a report (MS Word)
  • Prepare a presentation (MS PowerPoint)

Conclusion

A thorough site survey ensures that the AMI network will deliver reliable, secure, and cost-effective communication. It minimizes surprises during installation and helps utilities meet performance targets like daily read success rates. In Canada, where terrain and climate present unique challenges, the site survey is arguably the most critical success factor in any AMI deployment.

About the Author:

Michael Martin is the Vice President of Technology with Metercor Inc., a Smart Meter, IoT, and Smart City systems integrator based in Canada. He has more than 40 years of experience in systems design for applications that use broadband networks, optical fibre, wireless, and digital communications technologies. He is a business and technology consultant. He was a senior executive consultant for 15 years with IBM, where he worked in the GBS Global Center of Competency for Energy and Utilities and the GTS Global Center of Excellence for Energy and Utilities. He is a founding partner and President of MICAN Communications and before that was President of Comlink Systems Limited and Ensat Broadcast Services, Inc., both divisions of Cygnal Technologies Corporation (CYN: TSX).

Martin served on the Board of Directors for TeraGo Inc (TGO: TSX) and on the Board of Directors for Avante Logixx Inc. (XX: TSX.V).  He has served as a Member, SCC ISO-IEC JTC 1/SC-41 – Internet of Things and related technologies, ISO – International Organization for Standardization, and as a member of the NIST SP 500-325 Fog Computing Conceptual Model, National Institute of Standards and Technology. He served on the Board of Governors of the University of Ontario Institute of Technology (UOIT) [now Ontario Tech University] and on the Board of Advisers of five different Colleges in Ontario – Centennial College, Humber College, George Brown College, Durham College, Ryerson Polytechnic University [now Toronto Metropolitan University].  For 16 years he served on the Board of the Society of Motion Picture and Television Engineers (SMPTE), Toronto Section. 

He holds three master’s degrees, in business (MBA), communication (MA), and education (MEd). As well, he has three undergraduate diplomas and seven certifications in business, computer programming, internetworking, project management, media, photography, and communication technology. He has completed over 50 next generation MOOC (Massive Open Online Courses) continuous education in a wide variety of topics, including: Economics, Python Programming, Internet of Things, Cloud, Artificial Intelligence and Cognitive systems, Blockchain, Agile, Big Data, Design Thinking, Security, Indigenous Canada awareness, and more.