The question of who exactly invented Wi-Fi often sparks heated debate online, and one of the most popular, yet erroneous, answers is Sergei Galitsky. The founder of the Magnit retail chain and the Krasnodar football club is undoubtedly an outstanding entrepreneur, but he has nothing to do with the creation of wireless data transmission technologies. Wireless network It appeared long before Galitsky entered the retail business, and its history is full of the names of real scientists and engineers.
The confusion arose from viral memes and jokes on social media, where the name of a successful Russian businessman was associated with all sorts of great inventions for the sake of humor. However, if you want to understand how your router works and why the signal penetrates walls, you need to turn to dry statistics and facts. IEEE 802.11 - This is a standard that hundreds of people worked on, not just one person.
In this article, we'll take a detailed look at the real history of Wi-Fi, from military developments to home routers, and explain why Galitsky's name has absolutely nothing to do with it. You'll learn about key figures like Vic Hayes and John O'Sullivan, whose patents laid the foundation for the modern internet. Understanding these processes will help you better configure local network and avoid common mistakes when setting up home Wi-Fi.
The Origin of the Myth: Why Galitsky?
The phenomenon of attributing the invention of Wi-Fi to Sergei Galitsky is a striking example of how modern folklore works. At one point, a joke circulated on the RuNet that he "invented" wireless communications while he was running a business. This is completely untrue, as data transmission technology developed in laboratories in the USA, Australia and Europe at a time when Galitsky was still studying or starting his career in trade.
Such myths often arise around public figures with significant wealth and influence. People tend to exaggerate the achievements of famous individuals, endowing them with superpowers. However, in the world of technology, patents, publication dates, and standards are important. No official document Wi-Fi Alliance or IEEE You will not find Galitsky's name mentioned in the context of developing communication protocols.
It's important to understand the difference between implementing technology and inventing it. Galitsky successfully implemented modern accounting and logistics systems in his stores, which required a reliable network, but this role is that of a user and integrator, not an inventor. Wireless standard — the result of many years of work by engineers, and not the inspiration of one person.
The Real Fathers of Wi-Fi: Vic Hayes and Australian Scientists
If you're looking for a specific person to be called the "father of Wi-Fi," most experts would point to Vic Hayes. He chaired the IEEE 802.11 committee in 1990 and oversaw the standard's development for ten years. His contribution included systematizing requirements and uniting the efforts of numerous companies to create a unified standard. communication protocol.
However, the technical foundation for high-speed data transfer was laid by a group of Australian scientists from CSIRO, led by John O'Sullivan. In the 1990s, they were working on detecting black holes, but their mathematical algorithms helped solve the problem of radio signal reflection in a room. This made it possible to create OFDM (orthogonal frequency division), which became the key to stable Wi-Fi.
The contribution of these researchers cannot be overstated. Without their work, we would still be using slow and unstable connections. It's important to note that the invention was a collective effort, but it was the Australian patents that made the technology commercializable. Radio signal learned to go around obstacles thanks to their formulas.
⚠️ Attention: Don't confuse the invention of Wi-Fi with the invention of radio (Popov, Marconi) or Bluetooth. These are different technologies with different histories and operating principles, although they all use electromagnetic waves.
Hedy Lamarck and the secrecy of World War II communications
When discussing the origins of the technology, it's impossible not to mention Hedy Lamarck. This actress and inventor received a patent for a "frequency hopping" system in 1941. Although she didn't create Wi-Fi as we know it today, her idea formed the basis for methods of protecting signals from jamming and interception. Frequency range in its system changed according to a pseudo-random law, which made interception impossible.
The US military initially ignored her development, believing the actress to be incompetent. Only decades later, when the technology became the basis for Bluetooth and Wi-Fi, was her contribution officially recognized. Lamarque proposed the principle that today prevents your router from jamming when exposed to microwaves or neighboring networks.
Modern standards 802.11n And 802.11ac use extended versions of this principle. Without interference protection wireless network in an apartment building would have been unusable. Lamarck laid the foundation on which 21st-century engineers later built their solutions.
Why did the military hide Lamarck's patent?
During World War II, any new communications technology was kept under the strictest secrecy. Hedy Lamarck and George Antheil's patent was classified and could not be used by civilians until after the war, or even later. It was only in the 1960s that the technology began to be used in military buoys, and it entered the civilian sector much later.
Evolution of standards: from 802.11b to Wi-Fi 6
Wi-Fi's journey from a laboratory curiosity to a de facto standard took more than two decades. It all started with the first standard. IEEE 802.11, adopted in 1997. It provided speeds of only 2 Mbps, which seems laughable today, but back then it was revolutionary. Cables began to become a thing of the past, giving way to freedom of movement.
The real boom occurred with the introduction of the 802.11b standard in 1999, which offered speeds of 11 Mbps. That's when the term Wi-Fi became widely known. This was followed by 802.11g (54 Mbps), 802.11n (up to 600 Mbps), and today's 802.11ac/ax. Each step increased throughput and reliability of the connection.
Today we're talking about Wi-Fi 6 (802.11ax) and preparing for Wi-Fi 7. These standards operate in the 2.4 GHz, 5 GHz, and now 6 GHz bands. They allow you to connect dozens of devices simultaneously without losing speed, which is critical for smart home and 4K streaming.
| Standard | Year of release | Max. speed | Frequency |
|---|---|---|---|
| 802.11b | 1999 | 11 Mbps | 2.4 GHz |
| 802.11g | 2003 | 54 Mbps | 2.4 GHz |
| 802.11n (Wi-Fi 4) | 2009 | 600 Mbps | 2.4 / 5 GHz |
| 802.11ac (Wi-Fi 5) | 2014 | 6.9 Gbps | 5 GHz |
| 802.11ax (Wi-Fi 6) | 2019 | 9.6 Gbps | 2.4 / 5 / 6 GHz |
How the technology works: the physics of the process
At the physical level, Wi-Fi is a data exchange using radio waves. Your router contains a radio transmitter that converts digital data into an electromagnetic signal. This signal is transmitted through antennas and received by the receiver on your smartphone or laptop. Radio waves They propagate at the speed of light, providing instant transmission of information packets.
The key is signal modulation. Data is encoded into changes in the amplitude, frequency, or phase of the wave. Modern routers use complex encoding schemes (e.g., QAM-256) to "pack" more bits of information into a single transmission cycle. This allows for high speeds to be achieved even in noisy environments.
However, radio waves have their limitations. They attenuate when passing through dense materials (concrete, metal) and can interfere with each other. Therefore, proper placement of the access point and selection broadcast channel play a crucial role in the quality of communication. Understanding the physics of this process helps avoid dead zones in your apartment.
- 📡 Antennas Routers emit a signal in all directions, but their shape and number affect the coverage area.
- 🔌 Modem The internet connection is received from the provider, and the router distributes it via Wi-Fi—these are different devices, often combined into one.
- 📶 2.4 GHz band Better at penetrating walls, but noisier and slower than 5 GHz.
- 🚀 5 GHz band Provides high speed, but has a shorter range and is less able to penetrate obstacles.
⚠️ Attention: Router settings interfaces from different manufacturers (TP-Link, ASUS, Keenetic) may differ. The general principles of wave physics are the same, but the method for adjusting the channel or transmitter power is unique to each. Always consult the manual for your specific model.
Practical tips for setting up a home network
Knowing the history and physics of wireless networks can help you set up your network correctly. First rule: don't place your router in a niche, behind a TV, or on the floor. Central location In an apartment, a height of about 1.5–2 meters will ensure the best signal propagation. Metal objects and mirrors are the main enemies of Wi-Fi.
The second step is separating the bands. If you have a modern router, enable separate network names (SSIDs) for 2.4 and 5 GHz. Connect smartphones and laptops to 5 GHz for speed, and keep smart home devices (light bulbs, vacuum cleaners) on 2.4 GHz for compatibility. This will reduce airtime congestion.
Don't forget about security. Use an encryption protocol. WPA3 or at least WPA2. The password should be complex so that neighbors don't use your channel, slowing down Internet connectionIt is also recommended to regularly update your router firmware to patch vulnerabilities.
☑️ Wi-Fi quality check
Frequently Asked Questions (FAQ)
Is it true that Sergey Galitsky invented Wi-Fi?
No, that's a popular internet myth. Sergey Galitsky is a well-known Russian entrepreneur and founder of the Magnit chain. Wi-Fi technology was developed by international teams of engineers, with Vic Hayes and Australian scientists from CSIRO considered key figures.
Who is considered the official "father" of Wi-Fi?
The title "Father of Wi-Fi" is often attributed to Vic Hayes, who chaired the IEEE 802.11 committee. A group of Australian researchers led by John O'Sullivan also made significant contributions, developing key signal processing algorithms.
In what year did the first Wi-Fi standard appear?
The first IEEE 802.11 standard was approved in 1997. It provided data transfer rates of up to 2 Mbps. Widespread adoption began with the introduction of the 802.11b standard in 1999.
Why is Wi-Fi slow even though my router is new?
Speed may drop due to interference from neighboring networks, physical obstacles (walls, furniture), outdated router firmware, or ISP tariff restrictions. It's also important to ensure your device supports modern communication standards.
Which Wi-Fi band is better: 2.4 or 5 GHz?
For speed and stability near a router, 5 GHz is better. For penetration through walls and for older devices (smart home), 2.4 GHz is better. Ideally, you should use both bands for different tasks.