wireless-regdb: update regulatory rules for Sint Marteen (SX) for 2018

By "Legal and illegal wireless communication devices" in [1], Bureau
Telecommunications and Post St. Maarten lists the allowed equipment [2].

With ETSI rules:

* 2.4-2.4835 GHz
  - max. power 100mW
* 5.15-5.25 GHz
  - max. power 50mW
* 5.25-5.35 GHz
  - max. power 250mW
  - ESTI EN 301 893
    * DFS
    * for devices without TPC, the limit is lowered 3 dBm
      (reduce to 21 dBm)
* 5.47-5.725 GHz
  - max. power 250mW
  - ESTI EN 301 893
    * DFS
    * for devices without TPC, the limit is lowered 3 dBm
      - Not required for devices that operate at a maximum mean e.i.r.p. of
        27 dBm when operating in 5470 MHz to 5725 MHz
        (keep 250 mW for 5470 MHz to 5725 MHz)
* 5.725-5.875 GHz
  - max. power 1W
  - ETSI EN 302 502
    * DFS: 5725 - 5850
    * The FWA device shall have the capability to reduce the operating
      mean EIRP level to a level not exceeding 24 dBm for ChS = 20 MHz
      (reduce to 24 dBm)

[1] https://btp.sx/telecommunication.html
[2] https://btp.sx/dash/files/Telecommunications/Technical-Requirements/10t98466434723___TGVnYWwgYW5kIGlsbGVnYWwgd2lyZWxlc3MgY29tbXVuaWNhdGlvbiBkZXZpY2Vzb_64.pdf

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20250718030810.17213-2-pkshih@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
1 file changed