multi-frequency multimode mainly related to the chipset of the handset's modem, the Gobi modem used by the Gaotong's processor can be said to support the true 4G LTE global model, support LTE FDD, LTE TDD, WCDMA, cdma1x, ev-do, TD-SCDMA and GSM. Gobi 4G LTE Advanced with carrier aggregation speeds up to Mbps.
The cur
Analysis on the reason of frequent drop of modem
1, if the ADSL modem just as bridging mode access, first through the ADSL Modem Web page to view the line attenuation, Snr margin (this value is normally 15-40db, if less than 10db, indicating that the current line quality is not good enough), line speed and other parameters, If these parameters are abnormal, plea
What does the ADSL modem mean? often have netizens to consult this problem, ADSL modem is a modem, commonly known as "cat", users of ADSL broadband after (telephone line internet), must use ADSL modem this equipment, can normal internet.
Why do you use ADSL Modem?
ADS
SerialPort enables modem incoming call display
A friend took a case, but had to go on a business trip temporarily, so I called some functions for me to do it. I have always paid attention to WEB programming, but I am still unfamiliar with serial programming.ArticleA lot. Of course, it is better to count the articles in cnblogs for help. Write this into your blog for future reference, hoping to help those who need help.This section mainly describes ho
Operating environment: FreeBSD 3.4-release, the same dimension 56K external modem
First, set/etc/ppp/ppp.conf
#vi/etc/ppp/ppp.conf
If the modem company COM1 Port is set to:
Default
Set DEVICE/DEV/CUAA0 (other can be invariant)
.....
If the modem company COM2 Port is set to:
Default
Set DEVICE/DEV/CUAA1 (other can be invariant)
.....
Second, run PPP int
serial port and the PC communication, the communication line connected to the charger.Hart Conversion switch: 250Ω, none, 24v/250ω three Hart conversion modesdial to "250Ω" is the internal 250Ω resistor working state;dial to "None" is not built-in 24V and 250ω resistance of the working State;dial to "24v/250ω" is the built-in 24V and 250Ω resistors working state.According to the actual situation, the conversion switch is dialed to the corresponding location, and then connected to the line.① bui
SMS cats are devices used to send and receive text messages. They are the same as mobile phones.Insert the SIM card and connect it to the computer through the (USB or serial port) data cable/PCI slotYou can use related software on your computer to send and receive text messages.
Related software is the text message application that sends and receives text messages.You can develop your own device, or ask the device manufacturer of SMS to provide
The principle and fee of sending and receiving te
-0.1.5 to the/lib of linux on the ARM board.
3. Cross-compile 4G module driver
Cross-compile GobiSerial. c (ARCH = arm CC = arm-none-linux-gnueabi-gcc) to get GobiSerial. ko. Copy to ARM board to install driver
#insmod GobiSerial.ko
4. view the driver running status
Plug in the 4G module and Virtualize 6 ttyUSB, which are:
root@am335x-evm:/# ls /dev/ttyUSB*/dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyU
Millet notebook air 4G and before the normal version, divided into 12.5-inch small screen core and 13.3-inch display version, a total of 2 versions. The following is the 4G version of Millet air detailed parameters:
Millet Notebook Air 4G version configuration
Version contrast
Millet Notebook Air
Compared with 2g/3g, 4G is the biggest feature is to provide a peak rate of more than 100Mbps, since the speed can be off 20M of fiber-optic fixed network, that used for voice calls is a piece of cake? Unfortunately, this is where the problem arises.Because the current LTE network (4G) does not support voice services, so whether it is Td-lte (mobile 4G) or Fdd-lt
Compared with the 2g/3g, 4G the biggest feature is to provide more than 100Mbps peak rate, since the speed can be seconds off 20M of optical fiber fixed network, it is used for voice calls is a piece of cake? It is a pity that the problem arises here.
Since the current LTE network (4G) does not support voice services, so whether it is Td-lte (mobile 4G)
Great God F1 Speed edition (699 yuan)
Great God F1 speed version of the current off-the-shelf, whether in the cool-pie mall or Jingdong can be the first time to buy, and the machine 699 yuan Price absolutely let people echocardiography. If you think it's a low machine or a geriatric machine, that's a big mistake. The machine built-in 2GB RAM running memory, whether it is playing a game or multitasking can have a good performance, and this machine is currently has 2GB RAM to run the lowest pri
How can the three major carriers innovate their networks when they face the "4G 4G" challenge?
4G development in 2015 is about to enter the fourth quarter. At the latest "LTE Network Innovation Seminar" sponsored by the TD Industry Alliance, a group of the latest statistics published by the Secretary-General of the TD Alliance shows that, with the three major ca
Note: These are common Modem commands. Some commands may not apply to all modem instances. If any problem occurs, see the modem documentation or contact the modem manufacturer's Technical Support Department.
All commands (with two exceptions) must start with the character. The two exceptional commands are escape sequ
GF's iphone5s port version A1530 Unicom 4G is always unable to connect the problem, the root cause is that there is no 4G switch . The Hong Kong iphone only has a 3G switch. That is, when the 3G is turned on, the 4G signal is found, but only 3G and 2G are turned off. Let the phone signal stay on the 4G signal network.
1. We simply set the network mode in the mobile phone to 4G priority can be achieved 4G online, in the mobile phone "application."2. We click "Set" in the application interface that opens the interface.3. Then we click on "More networks in the connection" before entering.4. Then click on "Mobile network" in the Open interface.5. OK now you will see that there is a "network mode".6. Then we just have to sele
First, allow itunes to load the IPCC files:
Mac user executes in terminal: Defaults write Com.apple.itunes Carrier-testing-bool True if not, try defaults write Com.apple.iTunes Carrier-testing-bool YES
Windows executes the following command in run
Win user execution: "%programfiles%itunesitunes.exe"/setprefint carrier-testing 1
Win 64bit user execution: "C:Program Files (x86) ITunesiTunes.exe"/setprefint carrier-testing 1
Note: The above only allows itunes
The other party cannot hear me.
Symptom: Why can't I hear the voice of the other party when I dial the modem? I used the phone dialing program under WIN 98 and tried at command to dial up directly. Modem calls are not allowed.
Method: special software is required.
Step: omitted.
Note: The Voice function of modem can be achieved only through corresponding softwar
"IPhone5S Upgrade 4G Tutorial"
1, this upgrade we need system system, so we try to operate in the WiFi network state.
2. From now on, we found "settings" in Apple 5s to open the entry.
3, and then in the Setup interface to find "general" to find "about this machine," as shown in the following figure:
4, in the Open interface to find "operator" you will see you are using the "China Unicom 15.5" (I was testing unicom oh, mobile don't know OH)
5,
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