wireless-regdb: Raise DFS TX power limit to 250 mW (24 dBm) for the US
PATCH 1/1 wireless-regdb: Raise DFS TX power limit to 250 mW (24 dBm) for the US
From: Sultan Alsawaf <[email protected]>
According to 47 CFR § 15.407(a)(2), the U-NII-2A (5.25-5.35 GHz) and U-NII-2C (5.47-5.725 GHz) DFS bands are subject to the following [1]:
"For the 5.25-5.35 GHz and 5.47-5.725 GHz bands, the maximum conducted
output power over the frequency bands of operation shall not exceed the lesser of 250 mW or 11 dBm + 10 log B, where B is the 26 dB emission bandwidth in megahertz."
As such, increase the TX power limit for the U-NII-2A and U-NII-2C DFS bands to 250 mW (24 dBm) to match the FCC's current rules. These power limits have remained unchanged since the § 15.407 amendment by the FCC in 2014 [2].
[1] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-E/section-15.407#p-15.407(a)(2)
[2] https://www.federalregister.gov/d/2014-09279/p-131
--- db.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
db.txt +2 -2
@@ -1596,12 +1596,12 @@ country US: DFS-FCC (2400 - 2472 @ 40), (30) # 5.15 ~ 5.25 GHz: 30 dBm for master mode, 23 dBm for clients (5150 - 5250 @ 80), (23), AUTO-BW - (5250 - 5350 @ 80), (23), DFS, AUTO-BW + (5250 - 5350 @ 80), (24), DFS, AUTO-BW # This range ends at 5725 MHz, but channel 144 extends to 5730 MHz. # Since 5725 ~ 5730 MHz belongs to the next range which has looser # requirements, we can extend the range by 5 MHz to make the kernel # happy and be able to use channel 144. - (5470 - 5730 @ 160), (23), DFS + (5470 - 5730 @ 160), (24), DFS (5730 - 5850 @ 80), (30), AUTO-BW # https://www.federalregister.gov/documents/2021/05/03/2021-08802/use-of-the-5850-5925-ghz-band # max. 33 dBm AP @ 20MHz, 36 dBm AP @ 40Mhz+, 6 dB less for clients
Signature · 1 line
2.34.1
Seth Forshee
AppliedQuoted 14 lines · Sultan Alsawaf
From: Sultan Alsawaf <[email protected]>
According to 47 CFR § 15.407(a)(2), the U-NII-2A (5.25-5.35 GHz) and U-NII-2C (5.47-5.725 GHz) DFS bands are subject to the following [1]:
"For the 5.25-5.35 GHz and 5.47-5.725 GHz bands, the maximum conducted
output power over the frequency bands of operation shall not exceed the lesser of 250 mW or 11 dBm + 10 log B, where B is the 26 dB emission bandwidth in megahertz."As such, increase the TX power limit for the U-NII-2A and U-NII-2C DFS bands to 250 mW (24 dBm) to match the FCC's current rules. These power limits have remained unchanged since the § 15.407 amendment by the FCC in 2014 [2].
Quoted 4 lines
[1] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-E/section-15.407#p-15.407(a)(2)
[2] https://www.federalregister.gov/d/2014-09279/p-131Signed-off-by Sultan Alsawaf <[email protected]>
Applied, thanks!