Tenda AC18 1900Mbps wireless router unboxing evaluation
Tenda Technology launched a 1900Mbps new flagship routing AC18 in May Jingdong crowdfunding to replace AC15, Tenda AC18 equipped with Broadcom dual-core A9 processor, 128MB flash memory, 256MB of memory, equipped with a 1000M WAN port and four 1000M LAN ports, Is a true five full Gigabit dual-band wireless router. However, not only that, AC18 is said to brush dead Xiaoqiang, and ASUS AC68 the same hardware configuration and special skills, obviously felt this cargo is directed at the AC68
AC18's packaging is orange and black, the box marked several major features, 1900Mbps, strong signal, comes with rescue mode
From the back of the chart, AC18 is located in Tenda's flagship route, positioning the highest in the current series
The AC18 style is a hybrid between Dlink DIR-890L and Asus AC88
The overall design with sci-fi style, personally think that the design is not bad, relatively high value
The AC18 has a large number of heat vents on the back and sides. You don't have to worry about running it in summer.
The antenna is designed in a non-removable style. Compared with a detachable antenna, the clearly integrated antenna costs less.
The rear interface has DC power interface, DC power switch, WIFI switch, WPS button, reset button, 1Wan, 4Lan from left to right.
The positive design of the AC18 is still very much liked by individuals. The eight blue LEDs indicate the different operating states of the routes.
The USB3.0 interface uses a hidden design, dust belt protection, but unfortunately the whole machine is such a USB, for more external users of the device may be not small å°´å°¬
The bottom is still using a large number of cooling holes, with a wall hanging function, and the screws are hidden under the four rubber feet
Let's take a look at the power supply, a very general domestic style, 12V2.5A law-abiding, can basically meet the general use of intensity
The power supply manufacturer is Shenzhen Heshun Network Technology Co., Ltd.
Here to start dismantling, first uncover the 4 mats and unscrew the four hidden screws
AC18's shell is not difficult to remove. After uncovering the front cover, you can see that the motherboard is covered with two black heat sinks.
Like most of the flagship routes, there are thermal conductive films under the heat sink fins. From the area, it is obviously quite kind.
There is no screw connection between the main board and the bottom cover of the housing. There are only a few snaps and the main board can be easily removed.
Three areas in which the shield is isolated, the main SOC area, the 2.4G chip area, and the 5G chip area
AC18 has thermal conductive adhesive on various important chips, which is relatively rare on domestic routes.
The main SOC was adopted. The BCM4708A is an old and strong U. I believe we are already very familiar with it.
The operating memory is a single South Asian NT5CB128M16FP-D1 particle, DDR3 256MB capacity
Both the AC18 2.4G and 5G solutions use the BCM4360, which is the highest-end model released by Broadcom in early 2012. The single-chip transmission bandwidth reaches 1.3Gbps.
However, it seems to be a bit out of date on the 2016 product
454649E616 is a 2.4G wireless amplifier
5G signal amplification chip is used SKY8571D-11
The back of the PCB board has a 128MB flash chip
AC18's anti-jamming solution for USB 3.0 has taken a long-term view, using a more costly all-metal shielding solution
Open the back cover, inside is a FW05D
software interface
Because it is a crowdfunding version, the version update is more frequent, and there is room for improvement in the firmware.
AC18's firmware style is relatively simple, the novice is also relatively easy to use, the following are some basic and characteristic features, not one by one, everyone sees their own
Mobile APP
Tenda routing provides mobile phone APP version, which can basically cover the settings of general routers
The special feature is that it provides automatic channel detection and optimization, which saves a lot of effort.
The frequent occurrence of router security problems is a problem that needs attention
Tenda provides some simple inspection items and can build some simple defenses!
Wireless network throughput test
Test Equipment: Tenda AC18
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Client: PC1
Software Version: IxChariot Endpoint 7.10
Connection mode: Tenda AC18 Lan1 port connection PC1
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Control terminal: PC2
Software Version: IxChariot Console 6.7
Connection mode: R7800 LAN port to connect PC2
Test Script: 1900Mbps Wireless LAN Connection to Tenda AC18
5G wireless channel: 40 encryption mode: WPA2 AES
Wireless speed: 1300Mbps
1pair uploads 376.675Mbps
10pair upload 509.456Mbps
1pair Download 328.192Mbps
10pair Download 572.659Mbps
USB3.0 performance test
Test Equipment: CZ88 128GB Format: NTFS
USB3.0 cable mode upload
USB3.0 cable mode download
USB3.0 wireless mode upload
USB3.0 wireless mode download
Through the wall performance test
R8500 signal region selects North America, TendaAC18 signal strength selects "Enhanced" mode
to sum up
Tenda AC18 The initial trial of this machine gave me the feeling that it is very easy to use. The interface is easy to use and does not require complicated network knowledge. It is suitable for some novices. From the dismantling point of view the AC18's hardware configuration and AC68 exactly the same, although the workmanship is considered to be a leader in the domestic route but compared with the AC68 there are still many gaps, from the stability and service life is good to see clearly there is not Less advantage, AC18 claims to have the recovery mode, but at present it is only at the stage of the first batch of the crowdfunding version that the third-party firmware resources are barely available. The AC68 Meilin firmware that everyone looks forward to can't successfully flash, so there is no way to carry out the original version here. Comparison of firmware and Merlin firmware tests, but apparently from the wireless network throughput performance and AC68 worse three streets, personally think that the reason is still more firmware, said that most of the AC18 the most satisfactory part of the test is still through the wall performance , almost tied with the R8500. AC18 crowdfunding is still in progress, the current price is 479, personal advice can wait for related supporting Merlin software and then decide whether to buy, after all, and AC68 the same configuration, if brush Meilin down and AC68 performance is not the same as the most cost-effective The machine friend can consider starting. Follow-up Merlin software development can continue to focus on Koolshare, of course, will also bring AC68 and AC18 Merlin version of the comparative test!
Control impedance PCB
Many customers asked us what information we need for impedence control PCB.Here,there are two types for PCB manufacturer,a is single impedance ,just one trace ,two holes .and b is differential impedance,it always go with 1 pair (two trace with same width and space). For single impedance,you just tell us the trace width one which layer and what value you require .For differential impedance,trace width/space,layers and value. Our experience engineers will calculate following your instruction with Polar software.We may change trace width/space or stackup ,but please do not worry, if any changes,we will send you to approve before proceeding. Generally,the tolerance is 10%,and more accurate is 8% .All impedance boards ,we will test here and report.
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Storm Circuit Technology Ltd , https://www.stormpcb.com