How to make the external antenna play a better role?

The use effect of the external antenna is related to many factors.
We give the following tips;
1. The length of the antenna: It is recommended that you set the length of the antenna to a multiple of half the wavelength of the frequency band you are listening to, and you will get better results
2. The height and position of the antenna: Provide more air and space, which is very helpful to improve the shortwave reception. Keep it away from the power line and telephone line as it will distort your receiving mode.
Finally,Don't use it in thunderstorm days~ Safety first