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authorLuis R. Rodriguez <lrodriguez@atheros.com>2009-11-05 12:46:25 -0500
committerJohn W. Linville <linville@tuxdriver.com>2009-11-10 15:37:14 -0500
commitfcbf9225d56e82d9a4e506187d42285e76d81523 (patch)
treebf32cb6e388fe9d264d2b059af6378a2db18b88f
parent24b40af7f478b4a67343ee3543570f60b6bedf1f (diff)
downloadwireless-regdb-fcbf9225d56e82d9a4e506187d42285e76d81523.tar.gz
wireless-regdb: update US rules for 5600 MHz - 5650 MHz
The FCC is trying to assist airports that use Terminal Doppler Weather Radar (TDWR) systems in avoiding interference with some outdoor wireless systems operating in the 5.4 GHz (5470 MHz - 5725 MHz) band. One of the things they have decided on is to disallow operation on the 5600 MHz - 5650 MHz frequency range inclusive. What this means in practice is 5 GHz 802.11 devices programmed to operate in the US will have these channels now disabled: * 5600 MHz [120] (disabled) * 5620 MHz [124] (disabled) * 5640 MHz [128] (disabled) Channel on 5660 MHz (132) will be left enabled as the channel bandwidth is 20 MHz for legacy 802.11 networks but note that HT40- will be disallowed for that channel. The HT40+ and HT40- allowed channel map obviously changes. This is computed dynamically on cfg80211 based on your allowed channel list. For a US based device this is what you will get now (excerpt from on /sys/kernel/debug/ieee80211/phy0): .. etc .. 5540 HT40 -+ 5560 HT40 -+ 5580 HT40 - 5600 Disabled 5620 Disabled 5640 Disabled 5660 HT40 + 5680 HT40 -+ .. etc .. The details on which this patch is based on is documented on the FCC Knowledge based Publication Number: 443999 [1] [1] https://fjallfoss.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41732 Cc: Michael Green <Michael.Green@atheros.com> Cc: Senthil Balasubramanian <senthilkumar@atheros.com> Cc: David Quan <David.Quan@atheros.com> Cc: Vivek Natarajan <Vivek.Natarajan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--db.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/db.txt b/db.txt
index 84be443..c71b35b 100644
--- a/db.txt
+++ b/db.txt
@@ -562,7 +562,8 @@ country US:
(2402 - 2472 @ 40), (3, 27)
(5170 - 5250 @ 40), (3, 17)
(5250 - 5330 @ 40), (3, 20), DFS
- (5490 - 5710 @ 40), (3, 20), DFS
+ (5490 - 5600 @ 40), (3, 20), DFS
+ (5650 - 5710 @ 40), (3, 20), DFS
(5735 - 5835 @ 40), (3, 30)
country UY: