Tenda AC15 5ghz WiFi Amps and Beamforming

Discussion in 'Tomato Firmware' started by Gareth Baxendale, Feb 9, 2019.

  1. Gareth Baxendale

    Gareth Baxendale New Member Member


    I’m running the latest Jan 2019 beta on my Tenda AC15. I’ve previously read that FreshTomato does not enable the amps on 5ghz so the signal is poor. I’ve found this to be the case and wanted to ask if firstly this was a correct assumption and if there were plans to resolve this issue? On a similar note is beamforming enabled by default?

    Appreciate your collective thoughts! :)

    Thanks all
  2. txnative

    txnative Addicted to LI Member

    My thought would be that no one is willing to donate the time to assist with further development to help correct the 5ghz as oppose to developers either having or not having this model or any other model that might need proper support.
  3. Techie007

    Techie007 Networkin' Nut Member

    That is our best hypothesis at this time, as the signal is so much lower than it should be, and the transmit power setting raises and lowers it as expected, but there seems to be a constant 25dB attenuation. The Skyworks SKY85710-11 power amplifier chips are specced at 31dB transmit gain and 22dBm output power--not far from the apparent 25dB signal loss we're seeing!

    It's not a matter of "plans to resolve the issue". The problem is that those who really want it fixed don't have the necessary knowledge, plus the current Tomato developers aren't very knowledgeable on router hardware; most of their work nowadays is updating software components and fixing old bugs. The great thing is that we have debug access to the OEM Tenda firmware and it's running an identical Linux platform as Tomato, so it should be possible to find out how they have it configured and replicate those details in Tomato with a similar result.

    I am not sure if beamforming functions in the Tomato firmware or not on the AC15, nor how to field test it to find out. I do know that the 2 GHz range is terrific on that router though.
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