openwrt / openwrt/mt76

MT7688AN and MT7610E transmit power throttled on Wavlink WL-WN570HA1

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Dominant language
C
Stars
888
Forks
436
PR merge metrics
No merged PRs in 30d

Description

The Wavlink WL-WN570HA1 supports 27dBm and 25dBm on its 2.4Ghz and 5Ghz radios respectively. See the commit page:

https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=a160f50d4f240019fafe95e80701ebb871c788fe

  • 2.4 GHz: 802.11b/g/n SoC, 1T1R, 27 dBm
  • 5 GHz: 802.11a/n/ac MT7610E, 1T1R, 25 dBm

Since upgrading to OpenWRT the signal strength is materially reduced (the radios cannot be set more than 24dBm and 18dBm respectively). The reduced power relative to the stock firmware is confirmed using wireless clients (material reduction in signal strength).

Several people are having the problem. See e.g.
https://forum.openwrt.org/t/is-the-wavlink-wl-wn570ha1-fully-supported/59671

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the linked OpenWrt commit and comparing its wireless power handling with the MT7688AN and MT7610E behavior on the Wavlink WL-WN570HA1. No source file or test is named, so reproduce the reported 24 dBm and 18 dBm limits and trace the driver path responsible. Done means the radios can use the stated 27 dBm and 25 dBm limits without reducing client-observed signal strength.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, linux
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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