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Lab question: R2 is connected to R3 R5 as a fast Ethernet cable, and the others are strings. Frame relay is a full-connection mesh structure by default, that is, the PVC between all connected routes has been connected, and all Disable the reverse ARP functions of R5 and R8 to manually configure the map from R5 to R8. The topology used in this experiment is the ccnp standard topology, as shown below: Cert
I. Test conditions The beacon tower method is also known as the conventional far-field method. It is a common method to test the antenna pattern in the conventional field. This is the simplified frame of the antenna tested by the standard tower method. In the conventional far-field method test [20], to ensure the test accuracy, the following test requirements should be met: 1) the distance between the rec
The following is a small series for everyone to collect the "No line by the knowledge misunderstanding" all content, if you like small series of recommendations, please continue to pay attention to learning. More antennas, better routing? "The more the antenna coverage, the more the antenna more signal stronger, in short, the more the antenna routing is better
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data connection Performance drops. The beauty of modern Wi-Fi devices is that they can be used together, so you can build networks with the best devices of the same type. For example, my network uses routers from one manufacturer, antennas from another manufacturer, printing services from a third manufacturer, and wireless customer devices from several different companies. You can think of it as a wireless United Nations: global cooperation makes your online life easier. Placement: Location, lo
In the cellular mobile communication system, the antenna is the converter of the circuit signal and the space radiation electromagnetic wave, and is the key component of the mobile communication system.From 2G to 4G, the mobile base station antenna has undergone omnidirectional antenna, directional single-polarized antenna
Tags: style blog io ar color os sp for strongHow you can debug your application while debugging the kernel:(CSKYGDB) Ccontinuing.^cprogram received signal SIGINT, Interrupt.default_idle () at arch/csky/kernel/process.c:8383__ asm__ __volatile__ (CSKYGDB)HB *0x00065e34 = = "corresponds to the address of the application disassembly officeHardware assisted Breakpoint 1 at 0x65e34 (CSKYGDB) Ccontinuing.program received signal SIGTRAP, Trace/breakpoint trap.0x0 0065e36 in?? () (CSKYGDB) disadisable d
Faults are also emerging during the use or maintenance of wireless networks. Here we will introduce you to several detailed fault instances. The following articles will explain in detail. The operating frequency of a wireless LAN (WLAN) is generally 2.4 GHz and belongs to the category of microwave communication. The transmission feature is linear and visible, that is, visual communication and contact methods. This shows that rain, fog, walls and other obstacles can affect the transmission qualit
article, we mentioned that a user installs a receiving and sending antenna on the office and home roof to communicate with the base station BTS through LOS. In recent years, FWA has made significant improvements in technical design, striving to achieve "Non-line-of-sight transmission" NLOS and Non-LOS ), it is no longer required that the user's receiving and sending antennas must be installed at the high point on the roof, but to allow the antennas t
This article only applies to tl-wa5210g, tl-wa7210n, tl-wa7510n. Our outdoor high power AP Built-in vertical and horizontal two antennas, you can use the environment and installation methods to adjust the type of antenna. In the wireless AP management interface, click Wireless Settings >> Wireless Advanced Settings , you can set the antenna type, the following figure: As d
industrial chain will be transferred to China. As the frequency band increases, antenna deployment becomes a major challenge in LTE construction. Under the overall deployment policy of TDD/FDD hybrid networking, the network is constantly adjusted to meet the development needs, such as visible coverage, variable region, and dynamic capacity adjustment. The operator hopes to ensure that one deployment of the antenn
#************************************************************************************************* EMI test Project-re radiation emission In the re test, the height of the antenna, the polarization direction of the antenna and the angle of the turntable need to be constantly changed in order to find the maximum radiation point of the device. The RE test can be carried out in a semi-electric dark room in an
1 Introduction The mainstream standard wcdma/td-scdma/cdma2000 of the third generation mobile communication system adopt the Code Division Multiple access method, CDMA Code division multiplex System is a disturbance restricted system, in the transmission of information, there are multiple access interference, multipath interference and far-near effect. Any technology that can improve the anti-jamming performance of the system can improve the capacity of CDMA system, in this paper, the key anti-
In recent years, the increasing demand for mobile data services has promoted the acceleration of LTE network commercialization. Throughout the world, LTE commercial networks are still dominated by lte fdd, but with the gradual development of their networks, users and businesses are increasing, lte fdd network frequency resources, insufficient capacity and other issues will gradually become prominent, and TD-LTE network in the spectrum resources have more resources, can effectively alleviate the
technology of visual distance requires that there must be no obstacle between the sender and the receiver to be visible to each other. For a network with a visible distance, the problem is that most people have not considered this scattering phenomenon. I have seen many people look out the window, and if they can see the target, they will think that they have a very clear visual distance network. However, as the signal spreads, the signal strength is weakening. If you want to receive all the si
Formula for the relationship between attenuation and distance of Wi-Fi wireless signal transmission [Indoor Location] Calculation of wireless communication distance1. DBM dbmv dbuv Conversion RelationshipDBM = 10log (pout/1 MW), where pout is the power value in the unit of MWDbmv = 20log (Vout/1mV), where Vout is the voltage value in the unit of MVDbuv = 20log (Vout/1uv), where Vout is the voltage value in the unit of UVConversion Relationship:Pout = Vout × Vout/RDbmv = 10log (R/0.001) + dBm, r
: Interface Detected no link.Net: egiga0 [prime], egiga1Hit any key to stop autoboot: 0Marvell> Make rd88f6282a_config spiboot = 1 ddr3 = 1 Make error found /Bin/sh:-C: line 0: Unexpected syntax error near "(" /Bin/sh:-C: line 0: 'arm-mv5sft-linux-gnueabi-gcc-m \ 044 (mv_image_flags) \ 044 (mv_flags)-G ... Modify include/config. mk Cppflags + = \ 044 (mv_image_flags) \ 044 (mv_flags) Change it to cppflags + =$ (mv_image_flags) $ (mv_flags ). Make .... Arm-mv5sft-lin
) timingdesigner.v9.0 1CD (Interactive timing analysis and charting tools) Precience Products:PCB Navigator 5.1 1CD SCHMID PARTNER ENGINEERING AG Products:The Semcad v1.8 1CD (Semcad provides a high-end electromagnetic simulation platform for near-field analysis of complex environments, providing support and assistance for the iis/it ' is research of electromagnetic fields,At the same time can help at the chip level Emc/emi and EM simulation, antenna
subtraction between DB and DB in the project, without multiplication and division. The most commonly used method is subtraction: dBm minus D.In fact, BM is divided by two power sources. signal power and noise power are divided by signal-to-noise ratio (SNR ). DBM + dBmIt is a multiplication of two power values. This is rare (I only know that this is an Application in Power Spectral convolution ).What is dBm multiplied by DBM? 1 MW is the power of 1 MW? Except for the old classmates who wrote th
192.168.1.165 255.255.255.252R3 (config-If) # No Shutdown ..... R6 (config) # int lo0R6 (config-If) # IP add 192.168.1.129 255.255.255.252R6 (config-If) # int lo1R6 (config-If) # IP add 192.168.1.145 255.255.255.252R6 (config-If) # int S1/0R6 (config-If) # IP add 192.168.1.174 255.255.255.252R6 (config-If) # No ShutdownR6 (config) # int F0/0R6 (config-If) # IP add 192.168.1.178 255.255.255.252R6 (config-If) # No ShutdownR6 (config-If) # int S1/1R6 (config-If) # IP add 192.168.1.181 255.255.255.
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