I have a NRF24L01 model with an included screw-on antenna and apparently also an integrated RF amplifier (something like this, image sourced from eBay seller top_electronic1980). I have a lot of interference where I want to use this chip, and therefore my range with this is not more than a few meters, and even less if there are obstacles such as walls.
How are my chances to modify this device to output drastically more power? It does not need to be portable, so power consumption is not an issue. Also, it can use a highly directional antenna as I want to reach a specific receiver device that I know the approximate location of. I know it operates in the 2.4 GHz frequency band, so maybe something like the WiFi cantenna?
Thank you for your help!