Walkie-talkies are commonly used in underground parking lots in residential areas, shopping malls, and hotels. However, communication signals can be weak due to the underground location, which affects communication. How can we enhance the signal when using a walkie-talkie in an underground parking lot?

In general, the reinforced concrete walls in the basement of residential buildings are quite thick, resulting in significant attenuation of the walkie-talkie signal. It is difficult to communicate with upstairs. If there is already a  repeater, expanding the coverage range of the original base repeater. Signal testing equipment can also be used to identify signal blind spots in the basement and add antennas in those areas. If there is no repeater, adding one and setting up antennas in multiple locations in the basement can improve communication signals.

For hotels, office buildings, and other large-area locations, the walls in these areas may cause poor walkie-talkie signal due to their size and decoration. If the channel number is small, adding wall-mounted  repeater connected to antennas can cover an area of 100-200 meters.

From a practical perspective, it is recommended to choose a dual-frequency and dual-receiving radio that can receive single or dual channels freely. Most handheld radio in the market already have this user-friendly design.

The dual standby and dual PTT button design of HYDX A2000 is beneficial for quick responses in multiple scenarios, achieving maximal communication efficiency.