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I own a power density meter (and now how to use it) and checked how 0..20 dBm setting and applying with LuCi affects power density.
Surprising not expected result: 0,1,2 dBm result in slightly higher power densities than 20 dBm. As expected: 3 dBm is a very lowe value, increasing with higher settings up to 20 dBm.
So either the driver or the hardware does not support that values, for whatever reason; might be a bug. I found nothing in the mt7628n data sheet for this issue.
Suggestion - LuCi should not allow to set these values, or mt76 (if it's not a bug in mt76) should set 3 dBm for 0,1,2 dBm.
The text was updated successfully, but these errors were encountered:
Additional observation - on a "FRITZ!Box 7360 V2" with lscpu reported "MIPS 34Kc V5.6" (above system has "MIPS 24KEc V5.5"), OpenWrt 21.02.0-rc4.
Setting txpower here to LuCi with 0,1,2 dBm is also accepted. After setting and "Save and apply" LuCi reports 3 dBm is really set. Might be some relation to the case described above.
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