The beautiful metal casing not only adds a lot of color to the "PIXIE", but also effectively shields nearby interference. There are many options for the outer casing, such as metal cans, aluAminum lunch boxes, medical long aluminum boxes, etc. When choosing a box, be careful to open it as much as possible, because the battery needs to be replaced when it runs out.

To achieve better results, the performance of the erected antenna should not be lower than the full-length half-wave horizontal dipole antenna. At the same time, the simple balun should be used together. The antenna should be kept away from interference sources such as fluorescent lamps, computer monitors, switching power supplies, etc. If possible, use a coaxial cable as a feeder to reduce possible reception interference. If possible, choose a morning or late night broadcast with low broadcast interference to obtain the best listening effect of the SSB signal and CW signal.