On 22 October 2026, the FCC’s database recorded a new equipment authorization for a product described as a video baby monitor, from a camera manufacturer based in China. It lists two frequency ranges, both in the 5 GHz band: 5180–5240 MHz and 5745–5825 MHz. Nothing at 2.4 GHz. For a buyer, that grant answers some questions clearly and leaves others completely open. This article separates the two.
The frequency ranges in an FCC grant show where a transmitter is authorized to operate and at what power. They do not show whether the product uses Wi-Fi, whether it connects to the internet, or whether video stays local. The two ranges in this grant sit in U-NII-1 and U-NII-3, the two parts of the US 5 GHz band where radar detection (DFS) is not required. That avoids the forced channel changes DFS can cause, though the grant itself does not say why those bands were chosen. Compared with 2.4 GHz, a 5 GHz link loses about 7 dB more over the same distance in free space, so with antennas of the same gain it reaches roughly 40–50% of the distance, before walls are counted. The same band plan does not carry over directly to Europe: in most of the EU, 5725–5875 MHz is not designated for Wi-Fi-type networks.
§01The US 5 GHz band, and where this grant sits
In the US, licence-exempt devices in the 5 GHz band operate under the FCC’s U-NII rules, in Part 15 of its regulations. The band is split into sub-bands with different conditions. The most important difference for a video product is whether Dynamic Frequency Selection is required.
FIG. 01 · U-NII-4 above 5850 MHz is left out because it is not relevant here. Exact conditions per sub-band are in 47 CFR 15.407.
What DFS does. In the DFS sub-bands, a device must listen for radar before transmitting on a channel, and if it detects radar while in use it must leave that channel and stay off it for at least 30 minutes. For a laptop, a channel change is a brief pause. For a live video monitor, it can mean a dropped picture at an unpredictable moment.
Staying in U-NII-1 and U-NII-3 avoids that. We cannot tell from the grant whether that was the reason for the band choice. Cost, chip support and the target markets could all play a part. It is still a choice worth noticing, and a question worth asking any supplier of a 5 GHz monitor.
§02What a grant tells you, and what it doesn’t
- Who holds the authorization (the grantee)
- The frequency ranges and maximum output power authorized
- The equipment class and the rule parts it was tested under
- Which test laboratory and certification body handled it
- Test reports, photos and manuals, unless filed as confidential or under a short-term hold
- Whether the radio link is standard Wi-Fi or a proprietary protocol
- Whether the product connects to the internet or a cloud service
- Whether there is a local parent unit, a phone app, or both
- Which brand will sell it, and under what name
- How well it works indoors
Three conclusions are easy to jump to and not supported by the frequency list alone.
5 GHz does not mean Wi-Fi. Wi-Fi uses these bands, but so can other digital links. The U-NII rules regulate the transmitter, not the protocol running over it.
Wi-Fi does not mean cloud. A Wi-Fi radio can carry video directly from a camera to a parent unit with no internet connection at all. Whether a product sends anything to the internet depends on its firmware and app design, which the grant does not describe. Our article on what “local” means sets out the layers to check.
No 2.4 GHz does not mean better privacy. The band affects range and interference. Privacy depends on where the video goes, who holds the keys and accounts, and what the device connects to.
Our earlier article on using an FCC ID to find who makes a monitor covers how to look up a grant and its filings.
§035 GHz against 2.4 GHz for a baby monitor
The physics favours 2.4 GHz for range and 5 GHz for capacity. Free-space path loss grows with frequency, so at the same distance a 5 GHz signal arrives weaker.
| 2.4 GHz | 5 GHz | |
|---|---|---|
| Range, same power and antenna gain | Longer | Shorter: about 40–50% of the free-space distance, and more loss through walls |
| Spectrum available | One narrow band shared with Wi-Fi, Bluetooth and microwave ovens | Several sub-bands, more room for higher video bit rates |
| Interference in homes | Often crowded | Usually less crowded, though home Wi-Fi routers also use it |
| Radar rules | None | DFS in U-NII-2A and 2C. None in U-NII-1 and U-NII-3 |
| Regional consistency | Broadly harmonised worldwide | Sub-band rules differ by region, see §04 |
TABLE 01 · A comparison of the bands, not of any product. Our article on FHSS, Wi-Fi and DECT monitors compares transmission methods.
For a monitor carrying higher-resolution video within one floor of an apartment, 5 GHz can make sense. For a large house, thick walls or a parent unit carried into the garden, the extra loss matters. Our article on monitors in houses with thick walls covers the indoor side.
§04The same band plan outside the US
A product designed around the US U-NII rules cannot assume the same rules elsewhere. Two differences matter most for a monitor using these ranges.
| Range | United States | European Union | United Kingdom |
|---|---|---|---|
| 5150–5250 MHz | U-NII-1, no DFS | Designated for Wi-Fi-type networks under conditions set by Commission decision, including indoor restrictions | Available, with conditions |
| 5725–5850 MHz | U-NII-3, no DFS | In most member states, not designated for Wi-Fi-type networks. Available to general short-range devices at up to 25 mW e.i.r.p. | Licence-exempt indoor use for Wi-Fi-type networks at up to 200 mW e.i.r.p., without DFS, since 2021 |
TABLE 02 · Summary only. EU conditions are set in Commission Implementing Decision (EU) 2022/179 as amended and in national frequency tables. UK conditions are in Ofcom’s interface requirements. Check the current text for each target market before design freeze.
In practice, a 5 GHz monitor built for the US may need a different channel plan for Europe, enforced in firmware by region, and its own testing under the Radio Equipment Directive. Our article on certification by country covers the wider picture.
§05Questions to ask about any 5 GHz monitor
5 GHz monitor · supplier questions
The grant answers the first two. The rest need the supplier, or your own testing.
- Which sub-bands does it use, and does it ever operate on DFS channels?
- Who holds the FCC grant, and does the grantee match the company you are buying from?
- Is the link standard Wi-Fi or proprietary, and does the camera talk to the parent unit directly?
- Does anything connect to the internet when the app is not in use?
- What is the indoor range through the wall types in your target market, and how was it measured?
- Which channel plan is used for each region, and how does the firmware enforce it?
- Which markets is it already certified for, and which reports cover the 5 GHz radio?
Where we stand. Our current reference platforms use 2.4 GHz frequency hopping, which suits a monitor that must reach across a house without an internet connection. When a brand asks about 5 GHz, we start from the markets it will sell in, because the band plan differs by region. See our reference platforms and our Camera & Video Monitoring page for Wi-Fi and app-based projects.
This article reads one public grant to explain what grants show. It makes no assessment of that product, its maker or its performance.
References
47 CFR 15.407, general technical requirements for U-NII devices. eCFR text.
FCC Equipment Authorization database, for looking up any FCC ID. FCC ID search.
§06Questions buyers ask
Does a 5 GHz baby monitor use Wi-Fi?
Not necessarily. Wi-Fi uses the 5 GHz band, but so can other digital radio links. The FCC grant lists the frequencies and power, not the protocol. Ask the supplier, or check the test reports filed with the grant if they are public.
Does a 5 GHz baby monitor connect to the internet?
The frequency band does not tell you. A 5 GHz radio can link a camera directly to a parent unit with no internet connection, or connect to a home router and a cloud service. That depends on the product’s design and firmware.
What is DFS and why does it matter for a video baby monitor?
Dynamic Frequency Selection is required in the US U-NII-2A and U-NII-2C sub-bands. A device must check for radar before using a channel, and leave the channel for at least 30 minutes if radar is detected. For live video, that can mean an unexpected interruption. U-NII-1 and U-NII-3 do not require DFS.
Does a 5 GHz baby monitor have shorter range than a 2.4 GHz one?
With the same power and antenna gain, yes. Free-space loss is about 6.6 to 7.5 dB higher at 5 GHz than at 2.4 GHz, so the same link margin is reached at roughly 42 to 47 percent of the distance. Walls usually add more loss at 5 GHz as well. Real products differ in power and antennas, so compare measured indoor range.
Can a US 5 GHz baby monitor be sold in Europe as it is?
Not automatically. In most of the EU, 5725–5875 MHz is not designated for Wi-Fi-type networks and is limited to low-power short-range devices, and other 5 GHz sub-bands have their own conditions. A product may need a different channel plan for Europe and its own testing under the Radio Equipment Directive.
Choosing a band for a new monitor?
Tell us your target markets and the homes your buyers live in. We will work through range, interference and regional rules with you before the radio is chosen.
Discuss Your Radio Plan → 2.4 GHz FHSS platforms · Wi-Fi camera projects · Regional certification support