Network Engineer

A physical and wireless site survey for IT WiFi infrastructure typically includes the following activities:

1. Pre-Survey Preparation

Define Objectives: Determine coverage areas, capacity needs, and performance expectations.

Gather Floor Plans: Obtain updated blueprints or site layouts.

Identify Constraints: Check for physical obstructions (walls, furniture, etc.) and sources of interference (microwave ovens, Bluetooth devices, etc.).

Assess Existing Network: If upgrading, evaluate the current WiFi infrastructure, access points (APs), and network performance.

Select Survey Tools: Use tools like Ekahau, NetSpot, or AirMagnet for wireless measurements.

2. Physical Site Survey

Inspect Site Conditions: Walk through the site to note obstacles, ceiling heights, and cabling pathways.

Identify AP Mounting Locations: Determine ideal AP placements for coverage and accessibility.

Assess Power and Cabling: Check for power outlets and structured cabling needs.

Locate Interference Sources: Identify potential RF interference from neighboring networks, electronic devices, and structural elements.

3. Wireless Site Survey

Conduct Active Survey: Deploy test APs and measure signal strength, bandwidth, and latency.

Perform Passive Survey: Capture existing WiFi signals without connecting to the network to analyze interference.

Check Signal-to-Noise Ratio (SNR): Ensure acceptable levels for performance.

Validate Coverage: Ensure signals reach all intended areas with minimal dead zones.

Test Capacity and Throughput: Simulate user load to measure network performance under realistic conditions.

Assess Roaming Performance: Check handoff between APs for seamless connectivity.

4. Post-Survey Analysis

Analyze Data: Use heatmaps to visualize coverage, interference, and dead zones.

Identify Optimization Areas: Recommend AP repositioning, additional APs, or power adjustments.

Generate Survey Report: Provide documentation of findings, proposed solutions, and implementation plans.

5. Implementation and Validation

Deploy APs Based on Findings: Install WiFi infrastructure according to the survey results.

Conduct Post-Deployment Testing: Verify performance matches expectations.

Fine-Tune Configuration: Adjust channel settings, power levels, and security settings.

Monitor Network Performance: Set up ongoing monitoring to ensure long-term reliability.