Welcome to our fourth WiFi Ninjas Podcast episode!
Today we’re going to discuss second survey type of our hot ‘4 Ps’ – Pre-Deployment Wireless Survey.
Just to recap, there 4 main types of wireless surveysL
- Predictive (Software Simulation)
- Pre-Deployment (Simulation Validation)
- Post Deployment (Deployment Validation)
- Periodic (Healthcheck)
Structure of today’s episode:
- What is a Pre-Deployment Survey?
- Predictive Survey Validation, checking if the Predictive Survey is accurate in real-world conditions
- Simulating new WLAN deployment using AP-on-a-stick
- What are the benefits and use cases for Pre-Deployment Survey?
- Targeting greenfield sites that are too difficult or impractical to simulate in Ekahau
- Prove the RF concept – example: will cross floor leakage between floors through atrium affect RTLS?
- Ensures all the RF requirements (overlapping, coverage, etc.) are met before the WLAN is even deployed
- Pre-Deployment Survey Tools
- Predictive Survey Report
- AP-on-a-stick configuration
- Sturdy tripod, at least 3m high (but higher is better), can be on wheels
- Different brackets for different types of APs
- AP that will be used during the deployment or at least with very similar propagation pattern
- PoE battery, ideally at least providing 30W 802.3at PoE for newer APs
- Patch lead to connect the PoE battery to the AP
- Complete Predictive Survey – see previous episode
- Plan your day on site – ensure access to relevant areas and that the business knows how your work would look like
- Sometimes multiple AP-on-a-sticks are required
- Charge that PoE battery 🙂
- Take PoE injector with you
- How do you perform Pre-Deployment Survey?
- Prepare Ekahau survey – normally an empty project with just a scaled map and building layout
- Place AP-on-a-stick in a proposed (in a Predictive Survey) new AP location
- Do a ‘mini’ survey around it ensuring you go as far as the reach of the AP
- Freeze the AP
- Repeat for all the relevant APs in an area being subject to Pre-Deployment Survey
- Create a report showing real heatmaps of a soon-to-be-completed wireless solution
- Clunky, heavy and expensive equipment
- Very time consuming
- More often than not doesn’t bring too much value to the project but extremely valuable for specific use-cases
- In most cases a thing of a past, but still notoriously used as a main wifi planning tool by tons of vendor partners and integrators
- Links & More Info
- PoE battery with 802.3at PoE support: https://uk.rs-online.com/web/p/products/1486885/?grossPrice=Y&cm_mmc=UK-PLA-DS3A-_-google-_-CSS_UK_EN_Safety_And_Security_And_ESD_Control_And_Clean_Room-_-Cctv_And_Security_Surveillance%7CCctv_Transmission_And_Receiving_Accessories-_-PRODUCT_GROUP&matchtype=&pla-392759519960&gclid=Cj0KCQiAvqDiBRDAARIsADWh5TeLwDFbAfkMjpThLUtkawUUrky6Ie9nqAMElmeMQLeFLM38vz9HqXYaAvbyEALw_wcB&gclsrc=aw.ds
- Tripod with T-bar: https://wifigear.co.uk/wireless-survey-tripod#.XEl0l1z7QuV
- We also used Manfrotto tripods and carry cases that are on an expensive side, but are extremely light and robust
Thanks for listening and please don’t hesitate to leave a comment, feedback, subscribe or follow us on social media. Cheers!