Band encyclopedia
B43 · 3700
B43 is a 3GPP LTE (4G) band (3700), TDD duplex, uplink 3600–3800 MHz and downlink 3600–3800 MHz. It is a capacity layer: wide and fast, with shorter reach than the low bands. None of the networks we check uses it.12
Will your device work on B43?
- MF833V✘ no B43Global industrial LTE Cat 4, USB-Afrom US$45 · MOQ 100
- Dongle 400✘ no B43For industrial AR glasses, USB-C, IP66from US$45 · MOQ 2,000
- F40✘ no B435G RedCap dongle (needs 5G SA), 4G fallbackfrom US$46 · MOQ 2,000
None of our three devices covers B43 yet. Tell us your project and we will recommend a module that does.
Specification
| Type | LTE (4G) |
|---|---|
| Duplex | TDD |
| Uplink | 3600–3800 MHz |
| Downlink | 3600–3800 MHz |
| Channel bandwidth | 5, 10, 15, 20 MHz |
| Layer | Capacity layer |
Who uses it
None of the networks we check uses it.
What it means for IoT devices
- This is a TDD band: FDD-only modules cannot use it.
- None of the networks we check uses it; if your market is outside our coverage, go by the local operators’ own data.
Our dongles (MF833V, Dongle 400, F40) do not support B43.
Sources
- A TS 36.101 Rel-19, Table 5.5-1 E-UTRA operating bands 3GPP (via iTecSpec) · 2026-09-30
- C LTE frequency bands Wikipedia · 2026-09-30
