CC2652P2 Router output power

[nomis]

The co-ordinator has "Output power up to +20 dBm" but the router based on the same CC2652P2 only has "Output power up to +5 dBm (could be increased in the future with FW update)".

I'm having problems with SONOFF S26R2ZB devices having awful RSSI readings because they can only transmit at 5 dBm and most of them are located far away from the co-ordinator and each other.

I want to improve the situation by putting dedicated routers in specific locations, but that won't help if the routers can only transmit at 5 dBm too because they won't have a good signal to the co-ordinator without using an excessive number of routers.

What I want is a network of "Co-ordinator ⇐(20 dBm)⇒ Routers ⇐(5 dBm)⇒ End Devices" but to do that the routers need to be able to transmit at 20 dBm too.

[tube0013]

Current router shipping fw and also in repository supports configurable tx power up to 20. It is based on the most recent 20221102 z-stack router fw.

[nomis]

Is there a way to get the RSSI readings for all of the router's neighbours?

There's a ZBOSS API that I can use for this on an ESP32 router.

It looks like Z-Stack has support for the RSSI Location cluster but I don't know if the router supports that? (or a subset of it, because I just want RSSI readings and don't need the X,Y,Z location calculation)