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WiWavelength

S4GRU Staff Member
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Everything posted by WiWavelength

  1. The article is almost certainly referring to LTE EMBMS, which is a broadcast rather than unicast method. Basically, all users have access to the LTE RBs that carry the live stream(s). In that way, the same 2 Mbps live video stream is delivered to as many users in the cell as needed while still using only 2 Mbps of the total throughput. AJ
  2. I suppose the frequency of that "antenna" depends upon how much coffee you guys are drinking. AJ
  3. Hey, it could be possible. Have you seen "Multiplicity"? http://www.youtube.com/watch?v=pFGSsksz6ww I just wonder what Robert's wife thinks of the clones. And I hope that S4GRU does not get assigned the copy of a copy. AJ
  4. Okay, the thread is closed, pending further consideration. It may be reopened. Regardless, folks, please use speed tests sparingly. Occasional use is fine, but know that speed tests can transfer upwards of 40 MB per use. If enough subs run speed tests frequently just to see how fast the network is, those speeds tests will frequently overlap. Thus, measured speeds will be lower just because of the number of subs running speed tests. In other words, running lots of speed tests can actually be counterproductive to fast data speeds. AJ
  5. Yeah, this is probably a bad idea, and I will discuss with the staff the prospect of closing this thread. Otherwise, it will just encourage our membership to run needless speed tests, sucking up LTE throughput in a ridiculous e-penis measuring contest. AJ
  6. Advanced Signal Status is from the same developer and is basically the same as this earlier side loaded app, Android Signal Info: The problem with Android Signal Info that may still carry over to Advanced Signal Status is that the developer is a VZW user, and he based at least his RSSI calculations on 10 MHz FDD LTE. Sprint is deploying 5 MHz FDD, as is AT&T in some markets. Thus, those RSSI figures are incorrect for anything other than 10 MHz FDD. Moreover, in the thread below, the developer does not seem to understand SNR very well, as he comments on 300 dB SNR, which is actually 30 dB SNR because the figure/calculation is missing a decimal point. A 300 dB SNR is essentially impossible. http://rootzwiki.com...s-signal-sucks/ http://rootzwiki.com/topic/36320-app2012-11-11-android-signal-info/ So, right now, I do not put much faith in the accuracy of the app. However, if somebody wants to contact the developer and get some clarification, I would welcome that info. His Twitter account is below: https://twitter.com/yarlyyyy AJ
  7. You are basing that assessment on mobile use, not fixed use. But fixed use is an entirely different animal. Far more gain/power available. AJ
  8. Yes, to be clear, I am talking about Dish pursuing a "hotspot" offload model and/or home broadband model, neither of which requires complete coverage to be viable. AJ
  9. No, my understanding is that there is not enough frequency separation to ever use Lower 700 MHz D/E blocks as supplemental downlink with Lower 700 MHz A/B/C blocks. If ever used, D/E block supplemental downlink will have to be paired with Cellular, PCS, AWS, WCS, etc. AJ
  10. You cannot make Lower 700 MHz D/E blocks the primary and PCS 1900 MHz the secondary because the uplink is still PCS. Lower 700 MHz D/E blocks have to be supplementary downlink. AJ
  11. If Dish retains its AWS-4 spectrum, look for it to follow a LightSquared-esque model -- another carrier hosts the 40 MHz of spectrum on that carrier's platform, and Dish sells wholesale offload access to any/all comers. On the other hand, Dish could be serious about grabbing Clearwire and its BRS/EBS spectrum. Then, Dish would have enough bandwidth in most/all markets to offer a true triple play package. Satellite video. Wireless broadband. Wireless home phone. AJ
  12. The Lower 700 MHz E block -- if used for downlink carrier aggregation -- is less encumbered because it is adjacent to the A block downlink. In a recent thread (this one?), there has been talk of AT&T refarming spectrum for LTE. The debate has seemed to center around Cellular 850 MHz vs PCS 1900 MHz. One reason why Cellular 850 MHz makes sense is that it pairs much better with Lower 700 MHz D/E block used for downlink carrier aggregation. Honestly, Lower 700 MHz D/E block paired with PCS 1900 MHz would be a waste. Spectrum used for downlink carrier aggregation should have similar or worse but not significantly better propagation characteristics than the primary downlink. AJ
  13. Just the opposite. The lower the frequency, the longer the wavelength, the larger the panel. AJ
  14. My first thought regarding the crow's nest installation on this site is "bang the drum slowly." AJ
  15. The Lower 700 MHz D block 6 MHz and E block 6 MHz licenses are going to be a pain to put into service because they are stuffed into the duplex gap between the Lower 700 MHz uplink and downlink. In particular, AT&T's nationwide set of D block licenses (the former Qualcomm MediaFLO spectrum) will be a challenge to utilize, as the D block is directly adjacent to the C block uplink. This presents roughly the same interference problem as does the Dish AWS-4 uplink adjacent to the as yet unauctioned PCS/AWS-2 H block downlink. The good news is that AT&T is by far the largest holder of C block spectrum nationwide; so in those markets where AT&T holds both C and D blocks, it can work internally to coordinate spectrum use and mitigate interference. AJ
  16. WiWavelength

    Nexus 7

    Ask a woman. She would tell you that those extra 1.5" make all the difference in the world. Of course, I am talking about high heel length. AJ
  17. I would wager a guess that it is a T-Mobile corporate owned site, as T-Mobile is notable for flagpole "stealth" sites. So, the work ongoing could be related to T-Mobile network modernization, Sprint Network Vision, or even something else. AJ
  18. Re-read my post and/or the specs for the iPhone 5 and latest iPad models. They support LTE band 4 (AWS) but not W-CDMA band 4 (AWS). That is not an engineering challenge. It is a firmware lockout that Apple has granted AT&T for protectionism. I have said and will continue to say this for the foreseeable future: the iPhone and AT&T exclusivity are two of the most damaging things to ever happen to the domestic wireless industry. AJ
  19. Right. EV-DO Advanced is really about network management. It is not the same as EV-DO Rev B and should be transparent to end users. AJ
  20. Yep, that is my motto. Laptop, tablet, handset, I always drink S4GRU straight from the bottle. Tapatalk, shmapatalk... AJ
  21. What? No takers? I come complete with references from Kansas City, Oklahoma City, and Pojoaque. I can sometimes even be convinced to work for tacos and red chile. AJ
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