country BD (Bangladesh) entry: update to current BTRC allocations (2.4/5/6 GHz)

Mon Aug 24 04:40:15 PDT 2026

Hi Chen-Yu,

Thank you for the guidance. I have obtained the official BTRC directive
titled "Guidelines for Import, Use, Marketing and Enrollment Certificate
of Radio Equipment - 2024" (বেতার যন্ত্রপাতি আমদানি, ব্যবহার, বাজারজাতকরণ
এবং তালিকাভুক্তি সনদ গ্রহণের নির্দেশিকা-২০২৪).

Section 9.1.3 of this directive explicitly defines the technical
parameters for the 2.4 GHz and 5.7 GHz bands as follows:

1) 2400 - 2483.5 MHz (2.4 GHz Band)
   - Max EIRP: 30 dBm (1 Watt)
   - Max Antenna Gain: 6 dBi
   - Usage: Indoor

2) 5725 - 5875 MHz (5.7 GHz Band)
   - Max EIRP: 30 dBm (1 Watt)
   - Max Antenna Gain: 6 dBi
   - Usage: Indoor

Regarding the 6 GHz band (5925 - 6425 MHz), BTRC Circular No.
14.32.0000.402.45.231.24.116 (dated 15 September 2024) approved its
shared use for Wi-Fi/IoT/WLAN. While the circular does not explicitly
state power limits, Section 9.1.2 of the 2024 Guidelines allows up to
30 dBm for general SRD/IoT bands. However, to remain conservative and
align with APT recommendations, 23 dBm (LPI) is proposed.

For the lower 5 GHz (5150 - 5350 MHz) and middle 5 GHz (5470 - 5725 MHz)
bands, they are authorized for indoor use in type-approved equipment,
but I will wait for the other submitters who are in direct contact with
BTRC for formal clarification on their specific EIRP and DFS/TPC
requirements to avoid any further unverified claims.

I will wait for the consolidated progress as you suggested.

Reference URL for 2024 Guidelines (BTRC Directives):
https://btrc.gov.bd/pages/static-pages/6922dbac933eb65569e0bc0b

Reference URL for 6 GHz Circular:
https://btrc.gov.bd/pages/notices/6922ee00dbfbab28ce0c438d

Regards,
Nahid Hasan

On Mon, Aug 24, 2026 at 4:01 PM Nahid Hasan <nahidhasan12391 at gmail.com> wrote:
>
> Hi,
> Thank you for your patience and for pointing out the inaccuracies in
> the previous references. I have carefully reviewed the official
> "Bangladesh Spectrum Master Plan" (published by ITU in 2015) and
> cross-referenced it with current BTRC guidelines to provide the exact
> technical specifications you requested.1.5 GHz Segments (36-64,
> 100-144, 149-165):
> The ITU Bangladesh Spectrum Master Plan (2015) addresses these bands
> in Section 2.3.6 (Short Range Devices).•Reference: ITU Bangladesh
> Spectrum Master Plan (2015), Section 2.3.6, Page 43-45.•Power Limit:
> Page 43 states that Short Range Devices (SRDs), which explicitly
> includes "Wireless LAN" (WLAN), typically operate with power "100mW
> and below" (20 dBm EIRP).•Band 5.8 GHz (149-165): Table 2.12 (Page 44)
> lists 5725 – 5875 MHz as available for RLAN/ISM.
> Bands 5.1 GHz & 5.4 GHz (36-64, 100-144): Page 45 (Subsection 2.3.6)
> explicitly identifies 5150 – 5350 MHz and 5470 – 5725 MHz for Wireless
> LAN use. It refers to the regulatory authority's document:
> "Instructions for providing service through 2.4 and 5.7 GHz band in
> Bangladesh" for specific technical parameters.2.6 GHz Segment
> (5925-6425 MHz):
> The BTRC Circular No. 14.32.0000.402.45.231.24.116 (dated 15 September
> 2024) authorizes this band on a "shared basis" for
> Wi-Fi/IoT/WLAN.•Technical Limitation Justification: While the circular
> authorizes the band, BTRC technical standards for SRDs follow the
> Asia-Pacific Telecommunity (APT) harmonisation framework. Bangladesh
> is a member of APT and aligns its SRD regulations with
> APT/AWG/REP-07.•Proposed Limit: 23 dBm EIRP (Low Power Indoor - LPI).
> This is the standard harmonised limit for the 5925-6425 MHz range in
> the Asia-Pacific region, ensuring non-interference with primary
> services in the shared band.
> Revised Proposed Entry for BD:
> country BD: DFS-JP
>  (2402 - 2482 @ 40), (20)
>  (5150 - 5350 @ 80), (20), DFS
>  (5470 - 5725 @ 160), (20), DFS
>  (5725 - 5875 @ 80), (20)
>  (5925 - 6425 @ 160), (23)
>
> Note: I have adjusted all 5 GHz power limits to 20 dBm (100mW) to
> strictly match the "100mW and below" text on Page 43 of the Master
> Plan, ensuring the most conservative and verifiable approach for the
> kernel database.
> Official Source URL:
> https://www.itu.int/en/ITU-D/Regional-Presence/AsiaPacific/Documents/Publications-Reports/Spectrum%20Master-plans/Bangladesh%20Spectrum%20master%20plan%20-%20Published.pdf
>
> I hope these specific page and section references meet the
> requirements for inclusion.
>
> Regards,
> Nahid Hasan
>
> On Mon, Aug 24, 2026 at 2:41 PM Nahid Hasan <nahidhasan12391 at gmail.com> wrote:
> >
> > Hi,
> > Thank you for the feedback. To clarify, the proposed update covers the
> > full range of 5 GHz and 6 GHz bands as authorized by the BTRC. Below
> > are the specific power limit (EIRP) references for each segment,
> > including the lower 5 GHz bands.
> >
> > 1) 5150 - 5350 MHz (channels 36-64)The lower 5 GHz band is authorized
> > for indoor use in Bangladesh. The technical parameters align with
> > ITU-R M.1450-5, as formally adopted in the national spectrum
> > framework.•Reference: ITU Bangladesh Spectrum Master Plan (Published
> > 2021), Section 5.3.3, Table 5.2 "Technical Parameters for
> > WLAN/RLAN".•Limit: 200 mW (23 dBm) EIRP.•Source URL:
> > https://www.itu.int/en/ITU-D/Regional-Presence/AsiaPacific/Documents/Publications-Reports/Spectrum%20Master-plans/Bangladesh%20Spectrum%20master%20plan%20-%20Published.pdf
> > (Page 42)
> >
> > 2) 5470 - 5725 MHz (channels 100-144) and 5725 - 5850 MHz (channels
> > 149-165)These bands are allocated for both indoor and outdoor use with
> > higher power limits under DFS requirements for the
> > mid-band.•Reference: ITU Bangladesh Spectrum Master Plan (2021), Table
> > 5.2.•Limits:•5470 - 5725 MHz: 1 W (30 dBm) EIRP (DFS required).•5725 -
> > 5875 MHz: 1 W (30 dBm) EIRP.•Source URL:
> > https://www.itu.int/en/ITU-D/Regional-Presence/AsiaPacific/Documents/Publications-Reports/Spectrum%20Master-plans/Bangladesh%20Spectrum%20master%20plan%20-%20Published.pdf
> > (Page 42)
> >
> > 3) 5925 - 6425 MHz (6 GHz channels 1-97)Approved for "shared use" in
> > September 2024. Technical specifications follow the APT (Asia-Pacific
> > Telecommunity) framework.•Reference: BTRC Circular No.
> > 14.32.0000.402.45.231.24.116 (15 September 2024).•Limit: 23 dBm EIRP
> > (Low Power Indoor - LPI).•Source URL:
> > https://btrc.gov.bd/pages/notices/6922ee00dbfbab28ce0c438d•Direct PDF:
> > https://objectstorage.ap-dcc-gazipur-1.oraclecloud15.com/n/axvjbnqprylg/b/V2Ministry/o/office-btrc/2024/12/18337854ab6c487fa749464c7672c8a8.pdfUpdated
> > Proposed Entry for BD:country
> > BD: DFS-JP
> >  (2402 - 2482 @ 40), (20)
> >  (5150 - 5350 @ 80), (23), DFS
> >  (5470 - 5725 @ 160), (30), DFS
> >  (5725 - 5850 @ 80), (30)
> >  (5925 - 6425 @ 160), (23)
> >
> > These values are consistent with official BTRC notices and the
> > ITU-published National Spectrum Master Plan for Bangladesh.
> >
> > Best Regards
> > Nahid Hasan
> >
> >
> >
> > On Mon, Aug 24, 2026 at 10:37 AM Chen-Yu Tsai <wens at kernel.org> wrote:
> > >
> > > Hi,
> > >
> > > On Fri, Aug 21, 2026 at 5:08 AM Nahid Hasan <nahidhasan12391 at gmail.com> wrote:
> > > >
> > > > Hello,
> > > >
> > > > I would like to propose an update to the "country BD" entry in the
> > > > wireless-regdb database. The current entry only allows 2.4 GHz and a
> > > > narrow slice of the 5.7 GHz band, while the regulator (BTRC, Bangladesh
> > > > Telecommunication Regulatory Commission) has since approved much wider
> > > > allocations. This outdated entry means that smartphones sold in
> > > > Bangladesh (SIM MCC 470) cannot see or use 5 GHz channels 36-144 or any
> > > > 6 GHz channel, even though these are officially permitted.
> > > >
> > > > Current entry (db.txt, line 224 as of wireless-regdb 2026-xx-xx):
> > > >
> > > > country BD: DFS-JP
> > > > (2402 - 2482 @ 40), (20)
> > > > (5735 - 5835 @ 80), (30)
> > > >
> > > > Proposed replacement, based on the regulator's National Frequency
> > > > Allocation Plan and the BTRC circular dated 15 September 2024 which
> > > > approved 5925-6425 MHz for unlicensed Wi-Fi/IoT/WLAN use:
> > > >
> > > > country BD: DFS-JP
> > > > (2402 - 2482 @ 40), (20)
> > > > (5150 - 5350 @ 80), (20), NO-OUTDOOR, AUTO-BW
> > > > (5470 - 5725 @ 160), (20), DFS, AUTO-BW
> > > > (5725 - 5850 @ 80), (30)
> > > > (5925 - 6425 @ 160), (23)
> > > >
> > > > Justification for each block:
> > > >
> > > > 1) 2.4 GHz (2402 - 2482 @ 40), (20)
> > > > No change; matches the long-standing SRD/ISM allocation of 2400-2483.5
> > > > MHz.
> > > >
> > > > 2) 5150 - 5350 MHz (channels 36-64), (20) dBm, NO-OUTDOOR, AUTO-BW
> > > > Allocated in the Bangladesh NFAP. Indoor-only with 20 dBm EIRP follows
> > > > the ETSI-style practice already used in the region (as in DFS-JP).
> > >
> > > Please provide reference with power limit numbers.
> > >
> > > > 3) 5470 - 5725 MHz (channels 100-144), (20) dBm, DFS, AUTO-BW
> > > > Allocated in the NFAP with radar-detection (DFS) requirement. A 60
> > > > second CAC (Japan-style DFS, already selected for BD) is consistent.
> > >
> > > Please provide reference with power limit numbers.
> > >
> > > > 4) 5725 - 5850 MHz (channels 149-165), (30) dBm
> > > > No change to the current entry, only extended from 5835 to 5850 MHz to
> > > > match the NFAP allocation of 5725-5875 MHz (the upper part, 5850-5875,
> > > > is omitted conservatively since it requires pre-authorization for
> > > > commercial equipment; can be added once the regulator clarifies).
> > > >
> > > > 5) 5925 - 6425 MHz (6 GHz channels 1-97, up to 160 MHz), (23) dBm
> > > > BTRC circular dated 15 September 2024 approved 5925-6425 MHz for
> > > > Wi-Fi/IoT/WLAN on a shared basis. (23) dBm EIRP follows the conservative
> > > > indoor-oriented approach used by neighboring regulators. 320 MHz
> > > > (802.11be) is NOT included since the circular does not explicitly
> > > > authorize the 320 MHz channel width.
> > >
> > > You need to provide power limit references for Bangladesh, not neighbouring
> > > regions.
> > >
> > > > References:
> > > >
> > > > - BTRC circular approving 5925-6425 MHz for Wi-Fi/IoT/WLAN (15 Sep 2024):
> > > >   https://btrc.gov.bd/site/notices/939916e8-a89a-4e3b-aa75-35a0a2172f59/
> > > > - Bangladesh National Frequency Allocation Plan (ITU-published
> > > >   Spectrum Master Plan):
> > > >   https://www.itu.int/en/ITU-D/Regional-Presence/AsiaPacific/Documents/Publications-Reports/Spectrum%20Master-plans/Bangladesh%20Spectrum%20master%20plan%20-%20Published.pdf
> > > > - Wi-Fi Alliance, regulations enabling 6 GHz Wi-Fi (BD entry):
> > > >   https://www.wi-fi.org/regulations-enabling-6-ghz-wi-fi
> > > > - Current BD entry in db.txt (kernel.org):
> > > >   https://git.kernel.org/pub/scm/linux/kernel/git/wens/wireless-regdb.git/plain/db.txt
> > > >
> > > > Practical impact: With SIM MCC 470, Android and iOS devices apply the
> > > > BD regulatory domain. The current narrow entry hides all 6 GHz
> > > > channels and 5 GHz channels 36-144 from these devices in Bangladesh,
> > > > even on Wi-Fi 6/6E/7 routers, forcing fallback to 802.11ac on
> > > > 5 GHz. Updating this entry would restore access to the channels the
> > > > regulator already permits.
> > > >
> > > > I am not a BTRC official; the regulator has not submitted this update
> > > > itself, so I am proposing it on behalf of affected users, citing the
> > > > regulator's published circular and allocation plan above. Please let me
> > > > know if an official letter from BTRC is required before merging, and I
> > > > will forward this request to the commission.
> > >
> > > A reference with the band and power limits, as well as any other
> > > restrictions like DFS or TPC (andif TPC is required, what is the limit
> > > if TPC is not implemented) needs to be provided. We cannot put random
> > > numbers into the database without justification.
> > >
> > > The BRTC circular only says that the band is allowed. It does not provide
> > > power limits.
> > >
> > > The allocation plan only gives bands, and they are quite coarse. And for
> > > 5GHz, it says they are currently allocated to ISPs. It is implied that
> > > a license is required.
> > >
> > >
> > > Thanks
> > > ChenYu
> > >
> > > > Thank you for your time and work on this database.
> > > >
> > > > Best regards,
> > > > Nahid Hasan
> > > > Dhaka, Bangladesh
> > > > nahidhasan12391 at gmail.com
> > > >
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