Reuniones – The Wi-Fi of Things

Category: Reuniones
Minutas de reuniones de los Tesos en Wi-Fi

376a Sesión de Tesos en Wi-Fi: WLPC Praga y México, tema abierto

Posted on August 21, 2026 by Ferney Muñoz

La reunión se centró en desafíos técnicos y regulatorios relacionados con la implementación de Wi‑Fi, especialmente en entornos industriales y estadios, y en la limitación de uso de antenas externas en Europa para la banda de 6 GHz. Ferney describió un survey en un estadio con alta densidad de APs y problemas de recalentamiento y pérdida de datos en aplicaciones como Hamina y Ekahau, subrayando la importancia de sincronizar frecuentemente con la nube. Alejandro expuso su dilema al renovar APs Cisco 9120, ya que en Europa solo se permiten antenas integradas o no desmontables para 6 GHz, lo que le quita flexibilidad de patrones de radiación frente al uso actual de antenas externas de alta ganancia y ángulos estrechos. JC, Victor y Octavio discutieron alternativas como modelos con conectores para antenas externas, radios tri‑band, posibles soluciones de beam steering y amplificadores que redirijan la señal sin incumplir la normativa europea. Alex compartió ejemplos de despliegues donde la radio de 6 GHz queda deshabilitada o poco útil por las restricciones, mientras que 2,4 y 5 GHz se usan con antenas direccionales. También se comentaron brevemente detalles logísticos de futuras conferencias y clases presenciales en Praga, Valencia y México.

Notas del Chat:

00:27:48 Ferney Muñoz: https://www.wifitroubleshooting.com/#register-valencia
00:36:04 Victor Bautista: https://www.cisco.com/c/en/us/support/docs/wireless/aironet-antennas-accessories/221788-catalyst-9104-stadium-antenna-c-ant9104.html

375a Sesión de Tesos en Wi-Fi: WLPC Valencia cancelada y convertida en Wi-Fi Troubleshooting, tema abierto

Posted on August 15, 2026August 15, 2026 by Ferney Muñoz

La reunión se centró en actualizaciones de la comunidad de Wifi, comentarios sobre el terremoto en Colombia y su impacto, y discusiones técnicas sobre redes inalámbricas en entornos industriales. Ferney informó sobre la cancelación del evento WLPC en Valencia por baja inscripción y su reemplazo por una clase de troubeshooting, además de confirmar que el evento en México seguía en pie. Alejandro y otros hablaron sobre los desafíos de trabajar con dispositivos industriales antiguos, como robots y herramientas con chipsets Wifi desactualizados, y las dificultades para diagnosticar problemas cuando los proveedores culpan a la red. También se discutieron experiencias con dispositivos específicos como las gafas Meta y las limitaciones de los drivers. La conversación incluyó referencias a conferencias futuras como Praga y Phoenix, y se compartieron anécdotas sobre cambios no documentados en plataformas en la nube. Finalmente, los participantes expresaron solidaridad con los afectados por el terremoto en Colombia.

Chat Notes:

00:26:18 Alejandro: https://www.atlascopco.com/en-us
00:39:54 Victor Bautista: Many client devices, including meta devices, are optimized to perform well with 40 MHz channels in 5 GHz, providing a good compromise between speed and reliability.
Cisco and Apple recommend 5 GHz-only coverage designs for certain device types to leverage these benefits, and 40 MHz channel width is recommended in environments where throughput performance is required.
00:40:06 David Garcia: Reacted to “Many client devices, including meta devices, are optimized to perform well with 40 MHz channels in 5 GHz, providing a good compromise between speed and reliability.
00:49:49 JC Luna: https://wifi.ekahau.com/e/993862/-world-lessons-best-practices-/4c133d/1664549054/h/ebE44Iy-IraJaIereyTpg8G5hHotIFU9fAF0BBknjvc

374a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Sidos Systems]

Posted on August 14, 2026August 14, 2026 by Ferney Muñoz

The session focused on using the SIDOS software for Wi-Fi design, specifically on drawing walls, doors, windows, and attenuation objects in a 2D and 3D environment. Ferney demonstrated the process of creating and modifying these elements, highlighting both the strengths and limitations of SIDOS compared to other tools like Hamina. Participants discussed the manual nature of drawing in SIDOS and shared tips for efficiency, such as copying and pasting objects. The session also covered creating multi-floor buildings, aligning floor plans, and visualizing access point coverage and radiation patterns. Technical issues with account access and software features were addressed, and the group explored the software’s capabilities for simulating real-world environments.

Chat Notes:

01:25:22 Mark Zeigler: is there a place to import chairs / desks / furniture for Sidos?
01:41:50 Gjermund Raaen: I tested copy/backup with a building without simulated APs.
Export building and select a random AP
Rename the building with a better name (1.st backup)
Now you have a copy of the bulding and can work further on in case of future messups
01:43:25 Gjermund Raaen: 1 hour 23 minutes to WLPC Prague registration
01:57:04 alex wirz: I liked the AP 3d visualization
01:57:14 Zaur Nedashkovskiy: Btw they need to fix floor height m/ft when you add floors
01:58:03 alex wirz: I agree control v without having to look around is an awesome feature 😀
02:13:23 Larry: i think you need to select an AP for the mini-maps
02:20:14 alex wirz: what s the difference between green and black radiation patterns?
02:20:58 alex wirz: green looks like the -65 signal. so what s black? it has the same shape as the green one but smaller
02:25:44 alex wirz: black is 5ghz and green is 2.4
02:29:31 Mark Zeigler: What’s the scale measurement value? I got Floor 2 set as the wrong size
02:31:07 alex wirz: i think black is the minimum power level

373a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Sidos Systems, Intro]

Posted on August 13, 2026 by Ferney Muñoz

The session focused on introducing and navigating the SIDOS Wi-Fi design and survey tool, following previous classes on Hamina. Ferney demonstrated how to handle multiple floor plans for complex buildings, such as warehouses with mezzanines, by importing and aligning separate images. The session covered the SIDOS interface, including uploading floor plans, setting scales and heights, and placing access points. Ferney compared SIDOS’s features with Hamina, noting that SIDOS excels in surveys but has a less intuitive design interface. The demonstration included visualizations like coverage and interference, and Ferney showcased the capabilities of the SIDOS Wave survey device. The session ended with a plan to continue exploring SIDOS’s design features in subsequent classes.

Chat Notes:

00:15:24 Ferney Muñoz: https://e8cel.share.hsforms.com/2v5ec-gRwSYevc9UynLUkqA
01:31:54 Mark Zeigler: How did you get the channel band graph to display on Sidos?
01:32:08 Glenn De Haes: click on a point on the map if you have an ap in there
01:33:44 Gjermund Raaen: In many menus in Sidos you get the channel map in the buttom when you click somewhere on the map
01:36:26 Ned Neece: According to ChatGPT, India uses channel 32 in some regulatory implementations.
01:38:21 Gjermund Raaen: The channel map look is fantastic in survey mode
01:38:34 Mark Zeigler: Would be nice to say “I’m in Canada setup the channels”
01:50:09 simon: neat…good visualization
01:52:19 Walid Abdelkader: OK.. Hamina Win So far ….:)
01:59:58 Glenn De Haes: FYI: I don’t have the AI detect and there doesn’t seem to be an ‘enabled beta features’
02:02:20 Glenn De Haes: It is shift in Windows instead of CTRL
02:04:43 Glenn De Haes: @simon you can just draw. Ferney has it since he has the AI option
02:06:47 Gjermund Raaen: Almost like the Aircheck G2 Ethernet tester. Fantastic
02:07:48 Mark Zeigler: PoE?
02:09:51 Gjermund Raaen: I used the APoS feature on a Costal Guard wessel some month ago
02:11:34 Mark Zeigler: I did not see the Draw / Detect AI button
02:12:10 Gjermund Raaen: Upvoted quetion “Is it possible to see how long the user account is valid?”
02:13:16 Zaur Nedashkovskiy: @Ferney Muñoz – idea: Pre-build objects for Hamina like chairs, tables, etc.
02:14:35 Guillermo Parra: can Sidos handheld create CSV files?
02:15:27 Mark Zeigler: Is Sidos Wave a one time buy or on-going license?

372a Sesión de Tesos en Wi-Fi WLANPros Wi-Fi Design [Hamina Wireless, Multi-floor, Stadiums]

Posted on August 12, 2026 by Ferney Muñoz

In Session 372a of Tesos en Wi-Fi WLANPros Wi-Fi Design, a technical demonstration of 3D predictive modeling and coverage validation was conducted using Hamina Wireless and Sidos. The class showcased advanced designs in multilevel industrial environments such as warehouses with mezzanines and fiber plants featuring over 80 APs as well as sports arenas with sloped seating, alongside real world field survey validations. Throughout these exercises, the instructors evaluated Wi-Fi signal propagation across 2.4, 5, and 6 GHz, RF attenuation through materials like concrete, brick, and metal structures, and audited live metrics including transmit power (14dBm), channel widths (40MHz), and RSSI levels against predictive simulations.

371a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Hamina Wireless, Stadiums]

Posted on August 9, 2026 by Ferney Muñoz

The session focused on using Hamina Wireless for Wi‑Fi design in a hockey arena, covering sloped floors, raised floors, walls, and attenuation objects. Ferney demonstrated scaling the floor plan, drawing sloped seating with stairs, and adding crowd attenuation. The group modeled dasher boards and protective glass, with Jerry explaining how to stack materials without replacing them by holding Shift. Walid and Johan shared tips for drawing raised floors and sloped areas efficiently. The session also included licensing setup, resource links, and a brief discussion on comparing Hamina and Ekahau for on‑site surveys.

Chat Notes:

00:12:03 Ferney Muñoz: https://robinwifi.eu/tools/hamina-objects/
00:12:55 Ferney Muñoz: https://ai-tools.teigenrf.org/
00:20:45 Guillermo Parra: NHL-standard ice hockey rink, the playing surface is: Length: 200 ft (60.96 m) Width: 85 ft (25.91 m) Ice area: 17,000 ft² (≈1,579m²)
00:49:21 Guillermo Parra: The barrier around a hockey rink is generally called the boards or dasher boards.
The transparent section above them is called the protective glass or shielding. So for a drawing or RF design, I would label it:
Hockey Rink Dasher Boards & Protective Glass
00:50:20 Guillermo Parra: ComponentﾠTypical HeightﾠMetric
Dasher boardsﾠ40–48 in (3.3–4 ft)ﾠ1.0–1.2 m
Protective glass – sidesﾠ5–6 ft above boardsﾠ1.5–1.8 m
Protective glass – ends/cornersﾠ6–8 ft above boardsﾠ1.8–2.4 m

370a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Hamina, capacity planner, client view, warehouses]

Posted on August 8, 2026 by Ferney Muñoz

This was session 370 of the free Wi-Fi Design Class, where Ferney demonstrated Hamina design software by creating warehouse-scale Wi-Fi designs. The session covered capacity planning limitations, client roaming behavior, and the challenges of using omnidirectional antennas in large spaces like warehouses. Ferney explained that capacity calculations in software tools like Hamina and Ekahau are unreliable because they cannot predict actual client behavior when choosing access points, and showed how RRM (Radio Resource Management) can cause power levels to be set too low if not properly configured. The class learned how to import warehouse floor plans, create attenuation objects for high racks and conveyor belts, and design with both omnidirectional and directional antennas. Ferney demonstrated the benefits of using directional antennas with narrow beam widths and proper tilts, showing how they can provide targeted coverage down aisles while avoiding interference. The session concluded with a practical demonstration of using Shettle’s tool to modify and rotate 3D objects before importing them into Hamina, allowing for easier customization of warehouse elements like racks and equipment.

Chat Notes:

00:22:41 Mark Zeigler: Is there a control plane connection so that changing channel on the AP in the Hamina map changes the channel transmitting in the AP?
00:35:30 Gurpreet: https://www.youtube.com/watch?v=q0Aa7haw7lU&list=PLXJsNZqZEF9YI_whgRZsCdER90QbKgaWx&index=1
00:36:08 Gurpreet: Roaming Wars: How Different Devices Roam | Jerry Olla | WLPC Phoenix 2025 👆
00:48:46 simon: mixed channel width?
00:58:33 Hiten J. Thakkar: I might be confused on the term, will not RX-SOP come in play/
01:02:26 Gurpreet: It was developed to reduce CCI or CCC and is mainly on how AP hears not the client
01:04:13 Gurpreet: https://packetpushers.net/podcasts/heavy-wireless/hw084-spatial-reuse-in-wi-fi/ – great discussion by Keith and Jake
01:05:04 Ned Neece: RX-SOP, be careful.
01:06:00 Gurpreet: https://www.youtube.com/watch?v=QzZVo2PaBxU
01:06:11 Gurpreet: Practicing Safe RX-SOP | Jake Snyder | WLPC Prague 2018 👆
01:19:06 Alexandre Vianna: Its ppssible to use the AP Cisco 9176D1-ROW?
01:28:19 Hiten J. Thakkar: A while ago we had seen a warehouse that had robots moving Storage racks, how would you emulate a floor below with access points/antennas pointing up to the floor above? Thanks
01:28:49 Zaur Nedashkovskiy | Linear Technologies, inc.: I think it would be a great idea IF RF visualization would be in 3D as well
01:38:32 Walid Abdelkader: Antenna downtilt and coverage calculator
01:57:38 Hiten J. Thakkar: Ceiling height is 40 ‘
02:20:11 Hiten J. Thakkar: Ksheitel started as a RF spectrum Manager at a new place in Norway, this week

369a Sesión de Tesos en Wi-Fi: WLPC Valencia, Sidos Features and Pricing, CWNP Class and Exams Information

Posted on August 7, 2026August 7, 2026 by Ferney Muñoz

La sesión 369a de Tesos en Wi-Fi contó con la participación de Macy Pineda de CWNP, quien explicó los nuevos exámenes proctorizados directamente por CWNP como alternativa a los centros de examen tradicionales como Prometric. Macy detalló que estos exámenes ofrecen mayor flexibilidad, soporte directo y un proceso más amigable, permitiendo a los candidatos tomar el examen desde casa con requisitos más flexibles. Los participantes discutieron las certificaciones CWNA y CWNE, incluyendo el próximo lanzamiento del CWNA 110 en septiembre-octubre, y Ferney compartió recursos de estudio. La sesión también cubrió el evento WLPC Valencia programado para septiembre y una clase de Wireless LAN Professionals Wi-Fi Troubleshooting en Connecticut programada para el 17-18 de agosto.

368a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Hamina Wireless, cabling, switches, PoE budget, BOM]

Posted on August 7, 2026August 7, 2026 by Ferney Muñoz

This was session 368a of Tesos en Wi-Fi, focusing on Wi-Fi design class using Hamina software. The session began into a detailed discussion about importing files between different Wi-Fi planning tools. Walid asked about importing Ekahau files into Hamina, which led to an extensive explanation from Jerry about the Open Intent framework – a Google initiative that allows cross-tool data exchange between Wi-Fi planning software. Jerry demonstrated how Ekahau files can be converted to Open Intent format using Kjetil’s tools [https://ai-tools.teigenrf.org/], and then imported into Hamina, showing the complete process from file conversion to successful import of building layouts, access points, and antenna information. A site from Robin Decloed that has hundreds of attenuation objects for Hamina was shared: http://robinwifi.eu/tools/hamina-objects .This is the most complete library of objects that can be imported to a project in Hamina and is as simple as copy paste. The session also covered the differences between Wi-Fi planning tools (Hamina, Ekahau, Wavelify, and Sidos) and their respective strengths, with particular emphasis on Hamina’s AI-powered floor plan creation and 3D visualization capabilities. Power budgets with the additions of desk phones, cameras, was demonstrated. Cabling, fiber optics backhauls, MDFs, IDFs, point to point simulations, cable tray, and detailed bill of materials were also explained. A session you do not want to skip.

Chat Notes:

00:27:03 Martin Ericson: https://docs.hamina.com/hamina/live/openintent
00:27:13 Mark Zeigler: https://podscan.fm/podcasts/heavy-wireless/episodes/hw073-openintent-a-collaborative-effort-for-wi-fi-interoperability-2
00:27:13 alex wirz: https://github.com/google/openintent
00:44:17 Larry: The auto planner and wall detection is super fast on larger projects
00:58:15 Jerry Olla: https://ai-tools.teigenrf.org/
01:04:29 Jerry Olla: http://robinwifi.eu/tools/hamina-objects
01:32:58 Walid Abdelkader: https://docs.hamina.com/hamina/guides/channel-planning
01:46:27 simon: does it flag an alert if an ap distance to the idf/mdf is close to 100m?
01:51:24 Bobby Khaira: Is it possible to add a non PoE switch like a core distribution switch that shows PoE switches connecting to which core distribution switch and its location on the map.
01:54:31 Mark Zeigler: Does Hamina have any options for the viewshed of cameras? IE – church needs cameras that monitor every corner of the building
01:55:26 Larry: It would be nice to see a note when hovering over the red exclamation point
02:24:23 Ferney Muñoz: https://docs.google.com/forms/d/e/1FAIpQLSdNj9h1_5Q_HtSHtNksIC1OGqrNhWmPcXuEF6Ohi4M_21kCkA/viewform

367a Sesión de Tesos en Wi-Fi: WLANPros Wi-Fi Design [Hamina Wireless, AP placement, auto-planner]

Posted on August 6, 2026August 6, 2026 by Ferney Muñoz

The session focused on Wi-Fi design using Hamina, with Ferney leading a hands-on demonstration of AP placement, 3D visualization, and reporting features. Participants discussed the use of MikroTik devices for labs and compared Hamina’s antenna visualization with other tools like Ekahau and Sidos. Jerry from Hamina joined to explain features like fast ray tracing, GPS coordinates, and AFC integration for 6 GHz planning. The group also covered Hamina’s live integration with Cisco Catalyst Center and ORB for real-time network analysis.

Chat Notes:

00:59:58 Hiten J. Thakkar: What exactly the speed test measure? My Wi-Fi is operating at 6E 40 MHz, the wire to the AP is 5 Gbps and switch port is 5 Gbps, uplink is 25 Gbps and the DS link to router is Fifty and to ISP 100Gps. The values of speediest is Laptop to AP correct?
01:00:22 Glenn De Haes: it does as they want both solutions to be as alike as possible. Think it is clear that AI/ML will be more powerful online than local install. So do expect that wall detection etc might work better online but in terms of look and feel and what you generally can do, it should become the same
01:01:13 Glenn De Haes: Speedtest tests to the Internet by sending a lot of data (500MB or so) and measure the peak bandwidth
01:01:27 alex wirz: no. laptop to the cloud if your ap is 40mhz and you re connected on a 10mb link you won t get all of it
01:01:28 Glenn De Haes: laptop to AP requires for instance iperf on the AP like with Arista
01:01:46 alex wirz: also, it will measure from laptop. so you need to check which frequency you re connected
01:02:35 Zaur Nedashkovskiy | Linear Technologies, inc.: Online speed tests like speedtest.net are mostly guessing your speed
01:04:07 Hiten J. Thakkar: 6E channel 197 (80 MHz) is the connection from laptop to the AP.
01:08:46 simon: if you are deploying this site with this design, will you use the channel design as static assignment or let the vendor rrm feature dynamically assign the channel?
01:10:26 Zaur Nedashkovskiy | Linear Technologies, inc.: Replying to “if you are deploying this site with this design, will you use the channel design as static assignment or let the vendor rrm feature dynamically assign the channel?
8/10 you will use RRM
01:10:34 Zaur Nedashkovskiy | Linear Technologies, inc.: Replying to “if you are deploying this site with this design, will you use the channel design as static assignment or let the vendor rrm feature dynamically assign the channel?”
02:07:49 alex wirz: cc screen where we have channel utilization.
that s an example of an interference. ap with 0 clients, but a huge 40min burst of 80% channel utilization
02:07:55 Larry: WLC to Catalyst Center traffic has a 5 minute delay