Comparison of advantages and disadvantages between public walkie-talkies and special wireless walkie-talkies covered by property signals

The basic principle of transmission is the same, which depends on electric and magnetic fields to generate electromagnetic waves to transmit and receive.

Are forwarded by the base station. In walkie-talkie industry, it is called repeater/relay station/turntable/relay station. If it is advanced, it is called a base station.

Advantages of public network: 1. Due to the existing equipment of telecom base station and basement, many channels are used at the same time; 2. Long-distance transmission

As long as there is telecom coverage, calls can be made all over the country. In most residential areas, underground garage telecommunications industry is to put radio frequency transmission lines, antennas.

, distributor and trunk amplifier have been arranged for installation, and users can use the public network walkie-talkie after purchase.

Disadvantages of public intercom: 1. Because it depends on the base station of the telecom industry, the signal will be covered by the telecom signal.

Fluctuations in recent years are not unstable. 2. Platform vendors need a network server to run all the functions of intercom.

The server is very fragile. For example, peer platform manufacturers maliciously attack the server, and the walkie-talkies and channels that are generally in use are not good.

It has been used normally, but so far, no one of the platform vendors of public network walkie-talkies, whether it is a well-known platform or a small platform, has not left.

Super-class failure, occasionally unable to communicate for a few days, has occurred in most platform vendors. Wireless intercom, private network, has a longer delay than ordinary intercom, after all, there will be more signal processing paths. 4. Each walkie-talkie needs to pay traffic fee and platform management fee every year.

Disadvantages of private network system: 1. The initial investment cost is relatively high.

2. It can't be used nationwide like public intercom.

consistent

3. The number of channels used is limited, and adding more channels requires combining and separating devices for processing. 4. Signal coverage needs to be rearranged.

Radio frequency transmission signal line, antenna, distributor, trunk amplifier.

Advantages of private network system: 1. Emergency command is convenient, the delay time is short, and the delay is hardly felt.

2. Less cost and equipment in the later period.

The technology is mature and the quality is relatively good.

3.

After the base station of intercom system fails, there is a common channel on the handset to meet the conventional emergency communication command, and the conventional channel is not affected by the base station. In case of fire and other unwilling scenes, private network intercom is a good helper, and other communication products are difficult to replace.