Analysis of influence factors of walkie-talkie consumption factors

First, the consumption factor of the walkie-talkie In 2001, after the words “the public” were added in front of the “walkie-talkie”, the “no cost for a penny, no call” was used as a selling point, representing a new force joining the radio communication industry to compete through the manufacturers. With all their ability to “keep drinking,” the consumption of the public walkie-talkie cannot be ignored. With the opening of the market for only one year, the domestic market scale quickly climbed to one million units. In 2006, GALLUP intercom company conducted a survey on the public walkie-talkie market in 15 cities including Beijing, Shanghai, Guangzhou, Wuhan and Shenzhen and found that the interphone penetration rate in the past five years increased by 8.4% in total. 1.5 times. Among them, construction companies and residential property management use the most interphones, which increased by 39% and 29% respectively. According to industry insiders, at present, the public walkie-talkie in China is only used for public communications, not real civilian use, and the consumer market for public walkie-talkies has only just started, and its development potential is huge. In 2007, the change in the mode of mobile phone walkie talkie calls will make our walkie-talkie users second only to mobile phones. By the time of the 2008 Beijing Olympics, there will be a leap forward, with only three walkie-talkie sales in Beijing, Shanghai and Guangzhou expected to exceed 300,000. Correct. Some experts predict that the sales potential of the public walkie-talkie market in China will exceed 1.5 billion yuan.

Second, the distance and effect of the call factors 1, the system parameters (1) The stronger the transmitter output power, the greater the coverage of the transmission signal, the longer the communication distance. However, the transmission power can not be too large, and the transmission power is too large, which not only consumes power, but also affects the life of the power amplifier components. It also has strong interference, affects the call effect of others, and generates radiation pollution. Radio regulatory agencies in various countries have clear regulations on the transmission power of communications equipment.

(2) The higher the receiver's receiving sensitivity, the farther the communication distance.

(3) The gain of the antenna, when the antenna is matched with the machine, usually the height of the antenna is increased and the receiving or transmitting capability is enhanced. The antennas used in hand-held interphones are generally spiral antennas, and their bandwidth and gain are smaller than those of other types of antennas and are more easily affected by human bodies.

2. Environmental factors Environmental factors mainly include paths, density of trees, environmental electromagnetic interference, buildings, weather conditions, and topographical differences. These and other parameters directly affect the field strength and coverage of the signal.

3, other influencing factors (1) battery power is insufficient. When the battery is low, call quality deteriorates. In severe cases, noise will appear and affect normal conversations.

(2) Antenna matching. The antenna's frequency band and the machine's frequency band are inconsistent, and the antenna impedance does not match, which will seriously affect the call distance. For users, pay attention to tightening the antenna when changing to the antenna of the walkie-talkie, and be careful not to use the antenna provided by the manufacturer, or to use the antenna that does not meet the frequency of the machine.

4. The quality of the sound depends mainly on the pre-emphasis and de-emphasis circuits. There are currently more advanced speech processing circuits, “voice companding circuits and low-level expansion circuit applications”, which have a good effect on fidelity speech.

Although there are obstacles, but the prospects are broad Many international famous brands are just looking at the market potential of this brand-new radio communication tool, and have increasingly advanced to the broad space of the walkie-talkie “public”. On the sixth day after the state announced the opening of the public walkie-talkie band, Motorola, which has achieved sales of 10 million public walkie-talkies, first introduced the WalkieTalkie public walkie-talkie T6200 with a 0.5-watt range that can be reached within 3 kilometers, and was the first one to be obtained in China. The identity of the model approval certificate product is “first test buzz”, with a view to taking the lead in occupying the public walkie-talkie market that has not yet been developed. Afterwards, Southern Bell made its appearance in China and cooperated with Shenzhen Nord Industrial Co., Ltd. to open up this market. For a time, the public walkie-talkie market in China has become a "hunting field" for transnational walkie-talkie manufacturers. In fact, in this market, the efforts of Motorola and BellSouth are not a masterpiece, and they cannot be overwhelmed. At this stage, no effort was made to break this stalemate. It was just a natural increase in the user market. Perhaps a stable market allows manufacturers to make more money with less worry, and they are all satisfied with the current market share.