The Everything Feed - All Packet Pushers Pods HW054: Validation Survey Controversies
Jun 10, 2025
Joel Crane from Hamina, an expert in Wi-Fi site surveys, discusses the controversial world of validation surveys in wireless networks. He sheds light on the risks of data manipulation that can affect heat map accuracy. The conversation covers the importance of walking speed during surveys for data integrity and the innovative use of multiple Network Interface Cards for efficient channel scanning. Crane also tackles the ongoing debate between active and passive data collection methods, stressing the need for maintaining data accuracy throughout the survey process.
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Green Doesn't Mean Good
- Green heat maps do not guarantee good wireless network performance.
- Adjusting thresholds can create misleadingly green maps without actual network quality.
Adjust Walking Speed to Channels
- Adjust your walking speed based on active channel count during Wi-Fi surveys.
- Moving slower in busy environments helps avoid gaps in data collection.
Multiple NICs Speed Scanning
- Multiple NICs reduce time needed to scan all wireless channels.
- More NICs allow faster, near real-time data collection during surveys.