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The news release doesn't say what qualifies as very low power. There's a definition at https://docs.fcc.gov/public/attachments/DOC-397315A1.pdf https://docs.fc
by ThrowawayR2 2y ago
The news release doesn't say what qualifies as very low power. There's a definition at https://docs.fcc.gov/public/attachments/DOC-397315A1.pdf https://docs.fcc.gov/public/attachments/DOC-397315A1.pdf.
- lelandbatey 2y agoTo quote that PDF as it was a bit hard to find within the many dozens of pages: Pg. 95: Very Low Power Device. For the purpose of this subpart, a device that operates in the 5.925-6.425 GHz and 6.525-6.875 GHz bands and has an integrated antenna. These devices do not need to operate under the control of an access point. Pg. 98: Geofenced Very Low Power Access Point. For the purpose of this subpart, an access point that operates in the 5.925–7.125 GHz band, has an integrated antenna, and uses a geofencing system to determine channel availability at its location.
- 01HNNWZ0MV43FF 2y agoSooo no watts or meters?
- jareklupinski 2y ago> The Further Notice sought comment on the appropriate power levels as well as other rules for VLP devices to ensure that the potential for causing harmful interference to incumbent operations is minimized. (6 GHz Further Notice, 35 FCC Rcd at 3940-42, paras. 236-43.)
- Tuna-Fish 2y ago14 dBm EIRP and a power spectral density of -5 dBm/MHz EIRP.
- rtkwe 2y agoMost newer band definitions specify the limits less in wattage and more in EIRP that measures the actual output of the antenna instead of just the power applied to the antenna by the transmitter. They also specify how the power as to be spread through out the channel and how sharply it has to fall off outside the channel. [0] [0] See page 3 for an example definition of a VLP definition and requirements from earlier this year. It specifies EIRP and how the power has to be distributed so you're not throwing one big spike in the middle of the channel for example.
- hnuser123456 2y ago14 dBm EIRP = 25 milliwatts, typical legal max for wifi, and the -5 dBm/MHz EIRP power spectral density says that 25 mW must be spread over an 80 MHz channel.
- JoshTriplett 2y ago> 25 milliwatts, typical legal max for wifi AFAIK wifi can use more power than that, at least in the US: 100mW, possibly 200mW, not sure what the hard limit is (or how much that must be spread).
- olyjohn 2y agoI'm pretty sure you can run 1 watt on WiFi.
- deleted 2y ago[deleted]
- jdietrich 2y ago1 watt conducted power, 4 watts EIRP. For most of the world, the ETSI limit is 100mW EIRP. https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-C/subject-group-ECFR2f2e5828339709e/section-15.247 https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A...
- throw10920 2y ago1 watt? With beamforming to increase the energy density you could run a tiny microcontroller off of that.
- rocqua 2y agoThis is about radiated power in any direction not exceeding what you would get with an omnidirectional 1W antenna. So beamforming under these rules lets you use less input power for the same directional power. But it doesn't let you bundle all your power into a single direction.