-
Anonymous users2024-02-09Hello! The cloud card is a prepaid card for China Telecom's mobile service, which uses CDMA standard mobile phones.
If you need to buy a cloud card, you can log in to Anhui Telecom Tianyi Store (
-
Anonymous users2024-02-08CDMA mobile phone card is China Telecom mobile phone card, using China Telecom CDMA network, CDMA is a branch of digital technology - expansion of megafrequency communication technology developed on a new and mature wireless communication technology.
The principle of CDMA technology is based on spread spectrum technology, that is, the information data with a certain signal bandwidth that needs to be transmitted and rented is modulated with a high-speed pseudo-random code with a bandwidth much greater than the signal bandwidth, so that the bandwidth of the original data signal is expanded, and then it is modulated and sent out by the carrier. The receiver uses the exact same pseudo-random code, which is related to the received bandwidth signal, and the wideband signal is replaced by the narrowband signal of the original information data, that is, despread, so as to realize information communication.
-
Anonymous users2024-02-07CDMA is a high-quality wireless network built by China Unicom, which has the characteristics of national coverage, large user capacity, high speed, high reliability, security and stability. CDMA card is a special plane card of China Unicom, which is generally used with China Unicom's customized mobile phones, such as China Unicom's CDMA version of iPhone5.
Introduction to CDMA:
CDMA (Code Division Multiple Access), also known as Code Division Multiple Access, is a technology used in wireless communication.
CDMA is a new and mature wireless communication technology developed on the branch of digital technology - spread spectrum communication technology. The principle of CDMA technology is based on spread spectrum technology, that is, the information data with a certain signal bandwidth that needs to be transmitted is modulated with a high-speed pseudo-random code with a bandwidth much larger than the signal bandwidth, so that the bandwidth of the original data signal is expanded, and then modulated and sent out by the carrier. The receiver uses the exact same pseudo-random code, which is related to the received bandwidth signal, and the wideband signal is replaced by the narrowband signal of the original information data, that is, despread, so as to realize information communication.
CDMA refers to a spread-spectrum multiple access digital communication technology, which establishes a channel through a unique sequence and can be used for any of the protocols in the second and third generation wireless communications. CDMA is a multiplexing method that occupies only one channel and greatly improves bandwidth utilization, and is used in ultra-high frequency (UHF) mobile** systems at 800MHz and ultra-high frequency (UHF). CDMA uses analog-to-digital conversion (ADC) with spread spectrum technology, where the input audio is first digitized into binary elements.
The transmitted signal frequency is coded by a specified type, so only receivers with a consistent frequency response can intercept the signal.
-
Anonymous users2024-02-06CDMA is a standard. Only this mobile phone can be equipped with CDMA card, that is, the card of telecommunications, you can recharge QQ members, etc., China Mobile, China Unicom, CDMA, broadband recharge, etc. CDMA is the card of telecommunications, and the form of mobile is the same, the current CDMA card is generally 189
-
Anonymous users2024-02-05China Unicom officially opened the CDMA network on January 8, 2002 and put into commercial use, and after October 1, 2008, it was transferred to China Telecom, and the mobile phone number segment was 180 segment that had just been released.
-
Anonymous users2024-02-04CDMA is a telecommunications card, starting with 189, starting with 133, starting with 153, and starting with 180.
Dear Telecom users, Hello!
According to your description, it is not 30% of 49, nor 30% of the total amount of billing after exceeding **, but 30% of your communication fee (excluding international and Hong Kong, Macao and Taiwan communication fees, and information service fees collected by China Telecom) in the form of a gift, which can only be used in the current month. >>>More
Users can also receive an activation prompt text message after the mobile phone card is shipped, and click the link in the text message to enter the activation page. Step 2: Enter the information: Enter the last six digits of the ID card and the last seven digits of the ICCID of the USIM card (excluding the last letter) when placing the orderStep 3: >>>More
It's a month200GB,But it's directional traffic,Commonly used iQiyi、Youku、Tencent** and other APPs are included,The outside of the set is 1 yuan1G,When you handle it, you can consult the customer service for the specific targeted traffic of the app,If it happens to be your usual use,It's still more cost-effective。
"Yunsheng Card" belongs to the "Shengka" series of exclusive number card products, jointly launched by China Unicom, is China Unicom's first rights and interests card product, which is characterized by "the set contains network disk super member" and "use a series of APP free traffic".
This is not necessarily, if you don't need to use a mobile phone card, you can directly choose to be broadband**, if you don't mind handling a telecom card, you can choose to fuse**, relatively speaking, the comprehensive tariff of fusion** is cheaper. >>>More