Push (PUSH) technology is a mechanism built on the client server, which is a technology in which the server actively sends information to the client. Compared with the traditional pull (PULL) technology, the main difference is that the push (PUSH) technology is that the server actively sends information to the client, while the pull (PULL) technology is that the client actively requests information. The advantage of PUSH technology lies in the initiative and timeliness of information.
The concept of push-pull technology
The so-called "push" technology is in contrast to the "pull" technology. It is a technology in which the server actively delivers information to the browser based on a pre-defined configuration file, rather than according to the user's real-time requirements. The "Push" technology is different from the "Pull" information technology that is searched using a browser. It is based on the user's needs and purposefully sends the information that the user is interested in to the user's computer on time. Just like broadcasting on a radio station, the "push" technology actively pushes the latest news and information to customers, and users do not need to search online.
Before the advent of "push" technology, people often used browsers to search on the Internet. On the one hand, in the face of a vast array of information, many users spend a lot of time and expense and it is difficult to "pull" the information they need; on the other hand, many users spend a lot of time and expense. , Information publishers hope to send information to interested users’ computers in a timely and proactive manner, rather than waiting for users to pull it. "Push" technology uses a broadcast mode, which is characterized by channel "broadcasting" so that online users can get the same information. Usually, there are special push software products (such as PointCast Company's PointCastNetwork) on the network server, which can be used to produce the information content to be pushed out and broadcast it. On the client side, the software installed in the personal computer is used to receive the information uploaded from the network and display it. When there is new information to be submitted, the "push" software will notify the user by sending an E-mail, playing a sound, and displaying a message on the screen. The use of "push" technology can improve the timeliness and efficiency of users' access to information.
The "pull" technology in network information refers to the fact that users actively search for information on the network purposefully, and the user sends a request to the Web from the browser, and the Web obtains the required information. With the increasingly abundant resources on the Internet, in order to find useful information quickly and efficiently in the Internet environment with massive amounts of information, search engines have emerged. Search engine is a shortcut to the vast ocean of information, so some people call it the "gateway to the Internet." Practice has shown that search engines are effective auxiliary tools for pulling (query) network information.
Current application of online push-pull technology
Push-pull technology has been widely used on the Internet. Inquiry of online information, information release of commercial websites, etc., have adopted push or pull technology. Now make a brief introduction from the following two aspects.
(1) Application of push-pull technology in e-mail services
At present, some websites have used push-pull technology for email services. For example, the famous yahoo website uses push technology to manage emails. When a user registers a yahoo mailbox, once he enters the yahoo homepage, after logging in, a prompt box will tell you. Whether there are new mails in your mailbox without you having to enter the mailbox.
(2) The application of push-pull technology in some commercial websites
Some commercial websites such as "Dangdang" online bookstore often send discounted advertisements of books, CDs, etc. to our e-mail mailboxes. Whether you want to accept them or not, these messages will be sent over. This is the information dissemination model that uses push technology. At the same time, if you take the initiative to search for the books you need in the "Dangdang" bookstore, "Dangdang" will record your query information, and send you relevant books regularly according to your hobbies, or when the list of books you query is not available. Find it, "Dangdang" will notify you when there is this book next time. This is the customized service provided by "Dangdang" for you. This is an information service model in which users “pull” the website first and then “push” it.
Pull and Push technology comparison
One, Pull technology
Browse search, search engine
Second, Push technology
E-mail, Internet broadcast, active broadcast channel
Three, comprehensive discussion of Push technology
Pros, cons, impact
Coordination of Pull and Push
One, Pull technology
Passive way
Waiting for the user to go to the website to browse
Two common types of Pull
Browse search
The most basic way to find information on the Internet
Due to the convenience of the Internet, users can browse many websites in a short period of time → For network operators, how to make network users linger and stay on the website has become an important issue
Search engine
Provide fast information query service
Second, Push technology
Active way
Actively send messages to the client
(1) Email
Currently the most popular Push technology on the Internet
Send by email broadcast
Subscribers will receive the latest news regularly or irregularly
SeedNet Newsletter Subscription
Three common types of Push (Cont.)
(2) Internet communication
Automatically send the webpage specified by the subscription to the customer
Digital Bindery (currently acquired)
In the connected state, it will automatically search for updates to the user's subscribed webpage. If so, send the webpage to the user's mailbox by E-Mail → dispute of copyright infringement
Downtown by InCommon
Permanently reside on the user's computer in the form of a channel toolbar
The user is notified of the arrival of new information with a light indicator, and the user clicks on the channel with a green light on the taskbar, and a drop-down menu of the new information title appears
Users can set the time interval for automatic channel update
(3) Active Channel
As long as the user subscribes, the website update information will be regularly sent to the user's computer in accordance with the regulations.
PointCast
The leader of push technology
Set Active Channel as a screen saver method, and dynamically show each channel on the user's computer screen. Its main content is business, news, stocks, technology and weather and other five types of channels, and the content supply is rich.
At present, it has been acquired by idealab, and the tool software EntryPoint in the form of a marquee has been relaunched. The latest version is called infogate.
Infogate interface and personalized settings function options
Infogate weather forecast
Three, comprehensive discussion of Push technology
(1) Advantages
A good tool to cultivate customer loyalty
The user actively subscribes or requests; the ability to customize
Become the main source of customer information
Provide customers with regular and reliable information
save time
Users can receive the information they need by subscribing to a personalized agent without having to enter the Internet to search for information.
The best differentiated advertising tool
One-to-one communication for target customers
(2) Disadvantages: affecting bandwidth and distracting
(3) Impact of Push technology
Push technology will enable netizens to become'passive' receivers, just waiting for the website to'push' the information that meets the needs.
Reduce the time users spend surfing the Internet: users no longer need to take the initiative to surf the Internet
Network access changes: information and software providers can become more and more active
The channel and the website will depend on each other: the channel will be used as a way to send messages or advertisements, but it needs to be connected to the website to get the main content
The count of online advertisements is difficult to measure: When the webpage sent to the user is not read, it will result in false reporting of the webpage and the count of advertisement reading.
(4) Cooperation between Pull and Push
Push some information to users in a timely manner, and then use the information to pull them back and interact with them. This rule is especially applicable when operating highly interactive online media.
The purpose of posting messages is to attract audiences to return to the media website to complete deeper reading or interaction. If the future Push technology cannot achieve this purpose, no advanced technology will be useful.
|
|
|
|
How far(long) the transmitter cover?
The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.
EXAMPLE 5W FM Transmitter use in the city and hometown:
I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).
I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).
I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).
Below are the approximate range of different power FM Transmitters. ( The range is diameter )
0.1W ~ 5W FM Transmitter ：100M ~1KM
5W ~15W FM Ttransmitter : 1KM ~ 3KM
15W ~ 80W FM Transmitter : 3KM ~10KM
80W ~500W FM Transmitter : 10KM ~30KM
500W ~1000W FM Transmitter : 30KM ~ 50KM
1KW ~ 2KW FM Transmitter : 50KM ~100KM
2KW ~5KW FM Transmitter : 100KM ~150KM
5KW ~10KW FM Transmitter : 150KM ~200KM
How to contact us for the transmitter?
Call me +8618078869184 OR
Email me [email protected]
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.
About Us
FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 15 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services. Contact email : [email protected]
Our Factory
We have modernization of the factory . You are welcome to visit our factory when you come to China.
At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .
At Fair
This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.
Where is Fmuser ?
You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .
FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .
Contact: Sky Blue
Cellphone: +8618078869184
WhatsApp: +8618078869184
Wechat: +8618078869184
E-mail: [email protected]
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620
|
|
|
|
English: We accept all payments , such as PayPal, Credit Card, Western Union, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me [email protected] or WhatsApp +8618078869184
-
PayPal.  www.paypal.com
We recommend you use Paypal to buy our items ,The Paypal is a secure way to buy on internet .
Every of our item list page bottom on top have a paypal logo to pay.
Credit Card.If you do not have paypal,but you have credit card,you also can click the Yellow PayPal button to pay with your credit card.
---------------------------------------------------------------------
But if you have not a credit card and not have a paypal account or difficult to got a paypal accout ,You can use the following:
Western Union.  www.westernunion.com
Pay by Western Union to me :
First name/Given name: Yingfeng
Last name/Surname/ Family name: Zhang
Full name: Yingfeng Zhang
Country: China
City: Guangzhou
|
---------------------------------------------------------------------
T/T . Pay by T/T (wire transfer/ Telegraphic Transfer/ Bank Transfer)
First BANK INFORMATION (COMPANY ACCOUNT):
SWIFT BIC: BKCHHKHHXXX
Bank name: BANK OF CHINA (HONG KONG) LIMITED, HONG KONG
Bank Address: BANK OF CHINA TOWER, 1 GARDEN ROAD, CENTRAL, HONG KONG
BANK CODE: 012
Account Name : FMUSER INTERNATIONAL GROUP LIMITED
Account NO. : 012-676-2-007855-0
---------------------------------------------------------------------
Second BANK INFORMATION (COMPANY ACCOUNT):
Beneficiary: Fmuser International Group Inc
Account Number: 44050158090900000337
Beneficiary's Bank: China Construction Bank Guangdong Branch
SWIFT Code: PCBCCNBJGDX
Address: NO.553 Tianhe Road, Guangzhou, Guangdong,Tianhe District, China
**Note: When you transfer money to our bank account, please DO NOT write anything in the remark area, otherwise we won't be able to receive the payment due to government policy on international trade business.
|
|
|
|
* It will be sent in 1-2 working days when payment clear.
* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email [email protected]
* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.
If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.
If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.
All the packages are form China guangzhou.
* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".
* After ship, we will send you an E-mail and give you the tracking number.
|
|
|
For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .
Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
ZIP:510620
Phone: +8618078869184
Please return to this address and write your paypal address,name,problem on note: |
|
