Wiisjgkcg's main business is base station construction and base station equipment. What do these two major businesses do?

Needless to say, base station construction is about building base stations.

Base station equipment (equipments of base station) refers to the equipment that controls the reception and transmission of radio signals and forms a two-way telephone circuit with a mobile station.

That is, a public mobile communication base station is a form of radio station, which refers to a radio transceiver station that transmits information with mobile phone terminals through a mobile communication switching center in a certain radio coverage area.

At this time, Japan attached great importance to the application of technology that could be converted into product production, and the application-oriented information industry was relatively developed.

Wiisjgkcg company is also relatively developed in terms of base station construction and base station equipment. The main operating object of this kind of base station equipment is BP machines.

Many young people in later generations may not know what a BP machine is, but this kind of BP machine was extremely popular in the 1980s and 1990s.

The BP machine is the called user receiver in the wireless paging system.

It consists of superheterodyne receiver, decoder, control and display.

It selects the useful signal to be received from the paging signal and interference transmitted by the base station, restores it to the original baseband signal for paging the local machine, and generates sound (or vibration) and displays digital (or letters, Chinese characters) messages.

Li Zhongxin remembers clearly that in 1983, users in Shanghai only used analog signal BP machines. Users could only receive call signals and had to call the paging station to find out the call-back number.

From the time the BP machine business began to appear in the Shanghai Stock Exchange in 1983 until this time in 1984, there were few developed areas in China that could own such a thing.

At this time, this kind of business had not yet appeared in the Northeast, and the construction of base stations was only available in the super cities of Shanghai and Guangzhou.

The equipment used in base station construction is basically purchased from large communication companies in Japan.

Li Zhongxin immediately saw business opportunities that others could not see.

The potential of base station construction and base station equipment is quite huge. If nothing else, the products produced can achieve the desired effect.

Wiisjgkcg encountered obstacles in building base stations and selling base station equipment in Japan. This is normal. Japan is decades more developed in communications than China. Japan does not need such equipment, and it happens to be exported to

Over there in China.

Li Zhongxin is not sure of winning it in other areas, but here in Heilongjiang Province, there is no big problem in establishing such a base station and introducing base station equipment so that Heilongjiang Province can enter the mobile communication era as soon as possible.

Li Zhongxin also felt the disadvantage of not having a mobile phone at this time. At this time, as long as you come out of home or work, then if others want to find you, they have to wait until you arrive at another location.

If you introduce something like a BP machine at this time and start such a business, then whoever you want to find in the future will be much faster.

The Shanghai and Guangzhou areas are the key areas supported by the country. They were the first to have the BP paging service. The Black Province should also have such a service as soon as possible. At least in the province, if you want to find people who will

Much more convenient.

Base station construction and installation of base station equipment are not things that can be accomplished overnight. This construction and installation will take at least a year and a half.

It is now September 1984. In other words, if we start studying this matter at this time and introduce Wiisjgkcg company to China, then the base station in Heilongjiang Province will be established soon.

This is a win-win situation. He has now acquired the Wiisjgkcg company and expanded the company's main business to the Black Province, which is nothing more than lowering the price.

Lowering some prices, although the profit is a little less, but with the success of Wiisjgkcg Company in building base stations in Heilongjiang Province, other provinces in China will know that there is a company in Japan that specializes in this base station. By that time, Wiisjgkcg Company

It will develop rapidly in itself.

Li Zhongxin remembers clearly that the early BP machines were all imported products, with brands including Motorola, Panasonic, etc.

The BP machine can only receive radio signals and cannot send signals, so it is a one-way mobile communication tool.

For example, a girl dials the number of the paging station through a wired phone. After the call is connected, she tells the operator the BP number she wants to page and her name and phone number, and then hangs up and waits. The operator of the paging station immediately enters the above information into the computer.

, the transmitter automatically sends call information to the air under the control of the computer.

You may ask, since the radio waves emitted by the paging station can cover a certain area, why can the BP machine in this area only receive calls to itself, but not signals to page other people?

It turns out that each BP machine has its own number, which is stored on the computer of the paging station. The message sent by the paging station carries this number, which can only activate the corresponding BP machine and has no effect on other BP machines. This is like a postman, who can send messages according to the user's instructions.

If you send the letter with the house number, there will be no mistake.

After the girl's friend heard the sound of "B—, B—", he turned on the display switch, and a number requesting a call back appeared on the screen. Then, her friend could find a phone nearby and talk to the girl.

The public paging station numbers in China are 126 and 127. There are also some professional paging stations with 7-digit or 6-digit numbers. 126 and 127 are both public stations, but the usage methods are different.

Station 126 is answered and connected by an operator and is a manual paging station, while station 127 is controlled by a computer and is called an automatic paging station.

The girl above is using a manual paging station. If you want to page through station 127, after the call is connected, all you will hear is the pre-recorded prompts, such as "Please continue dialing", etc. Then you have to enter the paged number

Send it through the buttons on the phone in your hand.

After receiving these signals, the computer of the paging station will verify them and send out paging on the wireless channel.

Some paging equipment is also connected to the home telephone. A certain period of time passes after the phone rings.

If no one answers during the call, the incoming call will be automatically forwarded to the paging station.

Pagers are small in size, light in weight, cheap and easy to use, which makes them widely used in various industries.

Instant communication starting from the BP machine has brought people into an era where there is no distance between time and space. They can be found everywhere at any time, which has greatly accelerated people's lives and work efficiency.

Later, the domestic company Inspur cooperated with Motorola to develop a Chinese character BP machine, allowing users to know the content of the call without having to search for a phone on the street.

In 1987, when Motorola's mobile phone first entered the mainland, it had a strange name called "Big Brother". This is actually a homonym for the gang leader in Hong Kong and Guangdong. It is said that the name of the mobile phone was related to the movie star Sammo Hung.

At that time, when he was working as a director on the set, his mobile phone never left his hand, and he often used it to give orders. Sammo Hung was originally a senior figure in the Hong Kong film industry, and others respectfully called him Big Brother.

Because there were so many photos of him holding a mobile phone in newspapers, people simply used "Big Brother" to refer to products such as mobile computers. Regardless of whether the source is true or not, the message carried by the three words "Big Brother" is clear.

, in that era it was a symbol of identity, status and wealth.

For the Chinese people who not long ago thought that "upstairs and downstairs, electric lights and telephones" are the steps towards "moderate prosperity", the shock it brings is inevitable. This is not only because of its expensiveness, but also because of the high-tech features it displays.

magic.

The emergence of Mobile Phone means that China has entered the era of mobile communications.

Later, in order to integrate mobile communications with Hong Kong and Macao, Guangdong took the lead in building 900MHz analog mobile phones.

Motorola has also set up an office in Beijing to promote mobile phones. This heavyweight mobile phone is thick and bulky, shaped like a black brick, and weighs more than a kilogram.

It has no other function except making calls, and the call quality is not clear and stable enough, and it often has to shout. In addition, its large battery can only sustain a call for 30 minutes after charging.

Despite this, mobile phones are still in short supply, and it is hard to find money. At that time, the public price of mobile phones was around 20,000 yuan, but it usually cost 25,000 yuan to buy it. The black market price was once as high as 50,000 yuan. This not only made ordinary people prohibitive

, even small and medium-sized enterprises cannot afford much.

People in that era were very simple and never concealed their admiration for others. Many people quickly opened up their social circles because of their big brother.

For a time, wearing a slicked back hair, applying hairspray, and holding a mobile phone has become the ideal image of a rich man for many people.

People of this era would never have imagined that in future generations, even street scavengers would have a small and exquisite mobile phone in their hands.

Although the clumsy Big Brother and its long antenna have been fixed in the long scrolls of history, those interesting scenes are still worthy of people's repeated appreciation. Because the sudden appearance of Big Brother once led Chinese people's lives to a new realm.
Chapter completed!