E18-MS1PA2, E18-MS1PA2-IPX, E18-2G4Z27SI or E18-TBH-27 USB Test Board are new boards from Ebyte with the CC2530 chip. The manufacturer promises better technical parameters but hides the real name of PA (power amplifier) even if you remove the cover shield from the board.
The existing documentation from the manufacturer instructs to compile a firmware with the HAL_PA_LNA flag. The same flag is used with the old and well-known CC2591 PA. But the board uses different pins to control PA and LNA. Therefore the standard firmware for CC2530+CC2591 chips does not work.
The configurable firmware allows you to avoid this problem. It can create the necessary firmware for you. You should use the following settings to prepare a router firmware for that board. Of course, you may other features to the firmware like a status LED indicator.