In Slack, @htdvisser wrote:
Created Downlinks rejected by gateways for certain TX powers · Issue #2106 · TheThingsNetwork/lorawan-stack · GitHub to track this
This also mentions:
…
With the gateway configs that have been distributed through TTN (GitHub - TheThingsNetwork/gateway-conf: The Things Network Master Gateway Configurations), the following TX powers are accepted by gateways:
-6
,-3
,0
,3
,6
,10
,11
,12
,13
,14
,16
,20
,23
,25
,26
,27
…
This means that the ERROR: Packet REJECTED, unsupported RF power for TX - 11 is just a misconfiguration of the gateway, but the other reports are valid.
…