Wireless intercom's longest distance

The maximum distance of a wireless walkie talkie is not fixed and is influenced by various factors, including the type, frequency, power, usage environment, and whether there is additional wireless network support. Here are some specific situations regarding the communication distance of walkie talkies:

Frequency and communication distance:

Low frequency walkie talkie (frequency range 30-300MHz): Under ideal conditions, the communication coverage area can reach 5-10 kilometers; But in urban environments, this distance will be reduced to about 2-5 kilometers.

High frequency walkie talkie (frequency range 300-3GHz): In a good environment, the communication range is about 1-5 kilometers; In cities, it may only reach 0.5-2 kilometers.

Ultra high frequency walkie talkie (3.5-4.0GHz): Under optimal conditions, the communication radius is 500-1000 meters; In urban environments, it is shortened to 200-500 meters.

Type of walkie talkie and communication distance:

Civilian walkie talkies: usually only work within a small range, with a maximum communication distance of about 2-3 kilometers.

Professional walkie talkie: The communication distance within the city can reach 3-10 kilometers.

Police intercom: The communication distance is approximately 5-20 kilometers.

Military walkie talkies: generally not less than 15 kilometers, some can reach up to 50 kilometers or more.

Cluster intercom: requires wireless network support, and with the support of system base stations, the communication range can reach tens or even tens of kilometers.

Public network walkie talkie (card insertion walkie talkie): Using 4G network, it can make calls nationwide.

Other influencing factors:

Transmission power: The higher the transmission power of a walkie talkie, the farther the communication distance will usually be, but compliance should be taken into account and potential interference with other wireless communications should be reduced.

Usage environment: In open areas or barrier free environments, communication distance will be longer; In urban environments or with obstacles, communication distance may be limited.

Antenna type: Different types of antennas can also affect the communication distance and effectiveness of walkie talkies.

In summary, the maximum distance of wireless intercoms varies due to various factors and cannot be given an exact value. When selecting and using walkie talkies, the appropriate type and power should be chosen based on actual needs and usage environment to ensure the expected communication effect is achieved.