My customer product base on CC2420 has MP many years. They report the TX signal strength in new batch board measurement is lower 2~3dB than old batch board. They test hundreds boards with almost same result.
Customer say their hardware board is same without modified. They also try exchange the new and old batch CC2420 device in a same board for verification, and double confirm the TX signal strength is better if sold the old batch device, and TX signal strength is lower if sold the new batch device.
Below are the picture for both old and new batch CC2420, may we know if there are something change or need notice between two batch device?