Singapore's regulatory authority has confirmed that 3 dBm EIRP reduction may be used in lieu of TPC support: > Dear Mr Yong > > We refer to our email of 17 January 2024. > > RLAN operations at sub-band 34 and 35 is allowed to transmit at ≤1000mw eirp with TPC and DFS employed. IMDA TS SRD Table 1 sub-band 34 and 35 can take reference from either ETSI EN 301 893 or FCC Part15 §15.407. > > As stated earlier, FCC has pointed out that the TPC will not be required if eirp is less than 500mW. > However, as the latest revision of TS SRD has just been published in Sep 2023, we will consider making modifications to it in the next release. > > - IMDA INFO (IMDA) <info@xxxxxxxxxxx> on 2024-01-26 > Dear Andrew > > We refer to our email 31 January 2024. > > Kindly be informed that IMDA does not issue addendum documents. You may wish to cite this email to the maintainer. > > - IMDA INFO (IMDA) <info@xxxxxxxxxxx> on 2024-02-07 Related wireless-regdb email/thread: - [[PATCH] wireless-regdb: Update and disable 5470-5730MHz band according to TPC requirement for Singapore (SG)](https://lists.infradead.org/pipermail/wireless-regdb/2024-February/001517.html) This reverts commit d695bf21d1cdf02e64924f452c242f7588469609. Signed-off-by: Andrew Yong <me@xxxxxxx> --- db.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/db.txt b/db.txt index ed76600..15b439d 100644 --- a/db.txt +++ b/db.txt @@ -1594,7 +1594,10 @@ country SE: DFS-ETSI # 5725 - 5850 MHz: IMDA TS SRD, Table 1 Sub-band 35 # 5945 - 6425 MHz: IMDA TS SRD, Table 1 Sub-band 45b # 57000 - 66000 MHz: IMDA TS SRD, Table 1 Sub-band 40 +# Note: 500mW for 5470-5725MHz bands per FCC Part 15 Section 15.407 (2) 5.47-5.725 GHz as referenced by IMDA TS SRD +# AU and BG regulatory domains use the same interpretation of cited FCC and ETSI standards # Note: The transmit power for 5250-5350MHz bands can be raised (by 3dBm) to 200mW when TPC is implemented: IMDA TS SRD, Table 1 Sub-band 33a +# Note: The transmit power for 5470-5725MHz bands can be raised (by 3dBm) to 1000mW when TPC is implemented: IMDA TS SRD Table 1 Sub-band 34 country SG: DFS-FCC (2400 - 2483.5 @ 40), (200 mW) @@ -1604,8 +1607,7 @@ country SG: DFS-FCC # 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 requires (unimplemented) TPC per legislation - #(5470 - 5730 @ 160), (1000 mW), DFS + (5470 - 5730 @ 160), (500 mW), DFS (5725 - 5850 @ 80), (1000 mW) (5945 - 6425 @ 320), (250 mW), NO-OUTDOOR (57000 - 66000 @ 2160), (10000 mW) -- 2.43.2
