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Showing content with the highest reputation since 07/04/2016 in all areas

  1. 14 points
    Looks like the logic is: I get in the car, step on the accelerator, and it directly goes to the highest speed. If I got car accident, I'm then disqualified by the car vendor because:
  2. 9 points
    Yeah, so why don't they cancel the highway speed limit for Ferrari?
  3. 9 points
    Ferrari never limit their speed by default
  4. 8 points
    If 40 means ht40, I think it's not a bad idea to set ht40 in default for Neutron product line. (I just checked my Neutron device (EWS320), default value is still in ht80?) In my deployment (NY), ht80 never works well. 5G channels are not clean any more. If your concern is on "not show best capability as default value", well, I don't think that's an issue. For someone who really care about bandwidth settings, he will always check the details available in this option.
  5. 6 points
    Maybe wifi coexistence can solve this problem.
  6. 6 points
    1. 2.4G has much larger coverage than 5G (with the same Tx power value). You have to ensure that your dual band device is inside 5g coverage. 2. bandsteering technology won't really "force" a client device to 5G when it is already connecting with 2.4G. The "steering" takes effect only when a client trying to reassociate with wifi (like reconnect). 3. As I known (like Aruba?), the difference between "perfer" and "force" is: "prefer" will still allow the dualband client to associate with "not preferred" band (eg, 2.4G) if the client insists to associate with the band; "force" will only allow the client to associate with dedicated band even it is dualband capable.
  7. 4 points
    It takes into account the propagation delay time for the signal to get to the other side of the link. Even at the speed of light which the signal is traveling at, those few microseconds will cause issues if not accounted for. Because they need to talk back and forth, this communication must be in sync with one another. The setting actually matters. I did a link 4 miles and when I changed the setting from 1km to 7km I saw a huge improvement is throughput.
  8. 4 points
    It weird, I saw a lot of AP device and never see any AP default bandwidth is 40 for AC only engenius....
  9. 4 points
    じゃ、あなたは勝った。 あなたはリミットのフェラーリが買おう , まあ いいよ わたし80MHzを使うから
  10. 4 points
    Easy way to understand what is different between SU-MIMO & MU-MIMO
  11. 4 points
    http://www.asus.com/us/Networking/RT-AC5300/?utm_source=SNB&utm_medium=banner&utm_campaign=RT-AC5300 w%2Faward It looks like Transformer. .
  12. 3 points
    1st character : D=Dipole, S=Sector, O=Omni, P=Panel/Patch, Y=Yagi, H=Horn, G=Grid 2nd character : A=Antenna 3rd character : 2=2Ghz, 3=3Ghz, 5=5Ghz, 7=Dual Band 4th character : 1=1Tx1R, 2=2Tx2R, 3=3Tx3R, 4=4Tx4R 5th+6th characters : antenna gain, 10=10dBi, 13=13dBi .... etc. For example, SA2312 = Sector Antenna 2.4GHz 3T3R 12dBi
  13. 3 points
    @Lee10114 I got this information that will give you detailed information on what EnTalk and Entalk Lite is. EnTalk enables user to register smartphone to EnGenius Cloud Router, the smartphone will become the extension of home line, when calls come from PSTN, smartphone can receive the calls via WiFi and 3G connection. Also smartphone can make PSTN call too. :: EnTalk App only works with EnGenius Cloud Routers. :: 1. Supported Model: (1) EPG600 EnGenius EnTalk Lite app enabling each user to make and receive calls associated with your family members and friends to save on long distance and International calling. And the EnGenius Intelligent Router supports up to 10 smartphones registered to the ESR series Intelligent Router can make or receive calls with other EnTalk™ Lite user anywhere in the world with an Internet connection. EnTalk™ Lite is also a social networking app that keeps family, friends, and small business partners’ in touch via a chat room. With EnTalk™ Lite, you can: - Make free calls among different telecom users - Keeps in touch via a chat room - Save on long-distance and international calling Supported Models (1) ESR300 (2) ESR350 (3) ESR600 (4) ESR900 (5) ESR1750
  14. 3 points
    Is it reasonable to set 11n bandwidth by default for AC product?
  15. 3 points
    Packet aggregation is the process of joining multiple packets together into a single transmission unit, in order to reduce the overhead associated with each transmission.
  16. 3 points
    Each default setting is unable to meet each user. It should be able to get the maximum speed for the default bandwidth. AC product should be HT80. Users can adjust it for their environment.
  17. 3 points
    In my opinion, default values are just default settings on device when user got it out of box. Wireless environment is quite dynamic now and user should adjust it to best meet local deployment.
  18. 3 points
    All SI/MIS engineers should have ability to setup a proper WiFi configuration base on real environment, taking the easiest road always is a bad choose.
  19. 3 points
    In data networking and telecommunications, an acknowledgement (or acknowledgment or ACK) is a signal passed between communicatingprocesses or computers to signify acknowledgement, or receipt of response, as part of a communications protocols. For instance, ACK packets are used in the Transmission Control Protocol (TCP) to acknowledge the receipt of SYN packets when establishing a connection, data packets while a connection is being used, and FIN packets when terminating a connection. Source: https://en.wikipedia.org/wiki/Acknowledgement_(data_networks)
  20. 3 points
    以RSSI 預測模型為基礎之室內LBS 技術的研究.pdf
  21. 3 points
    It look so cool http://www.techbang.com/posts/43850-new-generation-80211ad-attack-tp-link-talon-ad7200-tri-band-wireless-router-measured-the-first-specification-for-80211ad-wireless-router
  22. 3 points
    version v2.1 https://github.com/JelmerT/cc2538-bsl
  23. 3 points
    To address the pressing demand for speeds surpassing 1Gbps ahead of completion of the IEEE 802.3bz standard, the NBASE-T Alliance, a 45+ member consortium of industry leaders representing all aspects of the ecosystem, is developing prestandard specifications and products in parallel, and in tandem, with the IEEE process. Using NBASE-T specifications, users may begin deployment of 2.5GBASET/5GBASE-T technology today. Individuals from NBASE-T companies have been key contributors at every stage of the IEEE process. As a result, the 802.3bz draft standard relies on a technology baseline similar to the NBASE-T specification. End users, therefore, can have a reasonable expectation of a seamless transition to the IEEE standard when it is ratified. NBASE-T 和 IEEE802.3bz 技術和量測.pdf
  24. 3 points
    IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group defining the physical layer and data link layer's media access control (MAC) of wired Ethernet. This is generally a local area network technology with some wide area network applications. Physical connections are made between nodes and/or infrastructure devices (hubs, switches, routers) by various types of copper or fiber cable. 802.3 is a technology that supports the IEEE 802.1 network architecture. 802.3 also defines LAN access method using CSMA/CD. http://standards.ieee.org/news/2015/ieee_802.3bz.html
  25. 3 points
    Hi Caila, Due to the different mechanism on SW side, the WDS connecting throughput may be greater than AP-CB connection. The difference may exist 10~20Mbps difference.
  26. 3 points
    http://blog.csdn.net/zhandoushi1982/article/details/4603443 Here is the introduction for the bad block issue of the NAND flash. Nand flash is the good choice for the flash. Because it has large capacity, cheap. but in the same time, it has the bad block issue.
  27. 3 points
    Trending products. http://www.androidpolice.com/2016/07/06/exclusive-google-is-building-two-android-wear-smartwatches-with-google-assistant-integration/ QUOTE: Speaking to Android Police, a reliable source has told us that Google is currently building two Android Wear devices - possibly Nexus-branded - for release some time after the latest Nexus phones are announced. One watch will be larger, sportier, and more fully-featured (LTE, GPS, heart rate), the other will be smaller and lack the aforementioned mobile data and GPS.
  28. 3 points
    The user cannot set Daylight Savings Time on his ENS202EXT. He cannot set the day setting beyond the 6th. Fix: It is only up to 6th because it is describing the nth week not the particular day of the month. For example DST for USA would be like: Start: March 2nd Sunday 2am which is March 8, 2015 2AM End: November 1st Sunday 2am which is November 1, 2015 2AM
  29. 3 points
    The LEDE(Linux Embedded Development Environment) project is a Linux based embedded meta distribution based on OpenWrt and targeting a wide range of wireless SOHO routers and non-network devices. https://www.lede-project.org/ The LEDE announcement was sent on May 3 by Jo-Philipp Wich to both the OpenWrt development list and the new LEDE development list. It describes LEDE as "a reboot of the OpenWrt community" and as "a spin-off of the OpenWrt project" seeking to create an embedded-Linux development community "with a strong focus on transparency, collaboration and decentralisation." https://lwn.net/Articles/686767/
  30. 3 points
    Nougat: Google's new Android name divides opinion http://www.theverge.com/2016/6/30/12067774/android-n-is-now-android-nougat
  31. 3 points
    Below are some SFP modules that have been tested either internally or by community members and reported to be working with EnGenius EGS/EWS Switches. Apacopto LM28-A3S-TC-N Apacopto LM28-C3S-TC-N CORETEK CT-1250NSP-SB1L Cisco GLC-SX-MMD D-Link DEM-210 D-Link DEM-211 D-Link DEM-310GT D-Link DEM-311GT EnGenius SFP2185-05 EnGenius SFP2213-10 LevelOne SFP2230 LevelOne SFP2100 LevelOne SFP3841 LevelOne SFP4210 LevelOne SFP4200 PLANET MFB-FX PLANET MGB-LX PLANET MGB-SX Trendnet TEG-MGBSX Pls do share you experiences with SFPs and let us know the results =)
  32. 3 points
    Nice formula! It seems to be based on the inverse square law (1 / x^2). http://hyperphysics.phy-astr.gsu.edu/hbase/forces/isq.html However one thing to note is that it is for free space loss, meaning direct line of sight and in outer-space. So if you were calculating for a transmission from Earth to Mars, then this formula can work well. However on Earth ground level, you have things like gases in the atmosphere (air), how much water vapor (humidity) is in the gas can impact signal propagation. This will change with altitude. Also for outdoors long distance reflections from the ground, and diffractions from surrounding objects also impact the signal retention. http://www.wirelesscommunication.nl/reference/chaptr03/pathloss.htm For indoors, need to consider building materials...... http://ftp1.digi.com/support/images/XST-AN005a-IndoorPathLoss.pdf There are many things to consider, hence answering "how far can I transmit" is not so easy to answer.
  33. 3 points
    How about EnGenius devices supporting Facebook WiFi. It is like having a captive portal using a Facebook account. Companies with guest networks and would like to promote themselves would probably like to have Facebook WiFi.
  34. 2 points
    TP-Link broke US rules on radio frequency use by providing a setting in its Wi-Fi kit that ramped up the power output beyond the limits set by the FCC. http://transition.fcc.gov/Daily_Releases/Daily_Business/2016/db0801/DOC-340564A1.pdf TP Link DOC-340564A1.pdf
  35. 2 points
    This topic of discussion for a long time, which one is better? Each with its advantages and disadvantages. http://www.speedguide.net/faq/is-5ghz-wireless-better-than-24ghz-340
  36. 2 points
    At 900MHz, the LMR400 coax has approx. 4dB of signal loss per 100 feet. This means with using the supplied coax length in the antenna kits, (20 meters/66 feet) loss is approx. 2.5dB. I always tell installers it's best to relocate the base closer to where you want the antenna than to use more coax. You can typically run telephone line up to 1500 feet from the PBX without much problem so moving the base is much better than using a whole bunch of coax. That being said, you can run more coax, just know that you introduce more loss. Sometimes, it's "worth" doing. If running 125 feet of coax means you now are above a major obstruction, then that extra 2-3dB of loss may be negligible compared to the maybe 10+dB attenuation from the obstruction. Use the RSSI signal tool in the handset to get the -dbm readings before permanently installing the antenna system.
  37. 2 points
    http://www.2cm.com.tw/markettrend_content.asp?sn=1512030005
  38. 2 points
    User isolation will only prevent access between clients under the same AP/SSID; L2 isolation can be enabled on AP to prevent access attempt among clients under the same WLAN (SSID) even across APs.
  39. 2 points
    Hi Confirmed your question. Due to the same design for HW and sharing the same SW base on the both ENS202 and ENS202EXT, the ENS202 also has the repeater mode.
  40. 2 points
    Looks like someone is not here for discussion. I vote HT40. I got EWS360 for K12 market.
  41. 2 points
    I agree with @Leo Penn that the 5G channels are not clean anymore and it is recommended that the Channel HT Mode: 40MHz. More and more people are using dual band routers and Access Points.
  42. 2 points
    For connector's picture, RP-SMA connector : N-Type connector : N-Type connector with surge protection :
  43. 2 points
    Beamforming for 802.11ac
  44. 2 points
    Requirements and issues for developing customized intelligent IoT gateway! http://www.embedded.com/design/system-integration/4441232/1/Requirements-and-issues-for-developing-customized-intelligent-IoT-gateway
  45. 2 points
    http://www.link-labs.com/thread-vs-zigbee-for-iot-engineers/ preliminary study of Thread Vs. ZigBee
  46. 2 points
    A security developer wrote such a scathing Amazon review that the product disappeared http://www.theverge.com/circuitbreaker/2016/7/5/12096520/bad-amazon-review-product-pulled-auyou
  47. 2 points
    Hi, Here are some useful OpenGL technology website. http://learnopengl.com http://www.glprogramming.com/red/ https://www.khronos.org/registry/gles/specs/2.0/es_full_spec_2.0.25.pdf
  48. 2 points
    Using the ENS202 or any directional antenna as a repeater does not make any sense. To answer your question, there is no viable application for such operating mode using a directional antenna. You can use the ENS202EXT instead. By the way, the repeater function is there for the ENS202 because I believe, all ENS devices shares the same firmware. I hope someone can verify this.
  49. 2 points
    Depends on your settings. Below are the 3 options you can use to authenticate connected users. Choose "Splash & Go" and connected users won't have to authenticate upon logging on. Choose "ezMaster Authentication" and connected users will be authenticated using ezMaster's internal user database. Choose "RADIUS Server" and connected users will be authenticated using the user defined RADIUS server.
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