mc4spr Posted October 7, 2014 Share Posted October 7, 2014 (edited) I was wondering if anyone has noticed band 26 in LA. So far I have been unable to connect to band 26 in Santa Monica, Westwood, Sherman oaks and Beverly Hills. I noticed band 41 a few times in Westwood with subpar download speeds (about 13 with 3 bars, similar upload speeds which is good). But i have not noticed band 26 at all yet. In Houston band 26 is widely available. I was wondering if anyone can comment on this. Getting frustrated with Sprint. I'm using iPhone 6 Edited October 7, 2014 by mc4spr Quote Link to comment Share on other sites More sharing options...
lilotimz Posted October 7, 2014 Share Posted October 7, 2014 No and not for a while. Give your thanks to San Bernardino County who is cockblocking the entire southern California and southern Nevada region. Sent from my Nexus 5 using Tapatalk 4 Quote Link to comment Share on other sites More sharing options...
mc4spr Posted October 7, 2014 Author Share Posted October 7, 2014 Why is that? how come nextel could use the frequency? band 26 in Houston fills in a lot of areas quite nicely. Is 800 MHz frequency blocked in SoCal for voice/3g as well? Can u explain on the timeline a little Thanks so much Quote Link to comment Share on other sites More sharing options...
lilotimz Posted October 7, 2014 Share Posted October 7, 2014 Why is that? how come nextel could use the frequency? band 26 in Houston fills in a lot of areas quite nicely. Is 800 MHz frequency blocked in SoCal for voice/3g as well? Can u explain on the timeline a little Thanks so much SMR was interleaved with Nextel sharing it with public safety organizations. Sprint has been paying and paid these said organizations to vacate the spectrum so sprint can use wideband carriers on it (ie. 1x and LTE vs Iden and etc). San Bernardino County PSO has not vacated the spectrum and has been constantly applying for extensions from the fcc where they've been arguing that it's been very costly and time consuming to move form the existing spectrum. Fcc along with sprint has gotten sick of them but can't do much until they finally finish rebanding sometime next year. Sent from my Nexus 5 using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
bigmachine Posted October 7, 2014 Share Posted October 7, 2014 1x800 exists in Los Angeles. It's ubiquitous anywhere North of LAX. Someone else can explain the details, but CDMA can use narrow enough channels that it doesn't interfere with the stragglers in San Bernardino County. South of LA has IBEZ issues with Mexico. Quote Link to comment Share on other sites More sharing options...
mc4spr Posted October 7, 2014 Author Share Posted October 7, 2014 thats unfortunate, without the low frequency, there is never a hope for a consistent LTE connection on sprint. More surprisingly was the speed that I noticed on band 41 (13 down and up). Was kind of hoping for more for such a high frequency Quote Link to comment Share on other sites More sharing options...
Dkoellerwx Posted October 7, 2014 Share Posted October 7, 2014 thats unfortunate, without the low frequency, there is never a hope for a consistent LTE connection on sprint. More surprisingly was the speed that I noticed on band 41 (13 down and up). Was kind of hoping for more for such a high frequency What does frequency have to do with speed? 1 Quote Link to comment Share on other sites More sharing options...
mc4spr Posted October 7, 2014 Author Share Posted October 7, 2014 What does frequency have to do with speed? not so much with speed but more bandwidth and capacity. so naturally it can accommodate more people and less decrease on data speeds. Maybe I'm wrong Quote Link to comment Share on other sites More sharing options...
bigmachine Posted October 7, 2014 Share Posted October 7, 2014 Santa Monica is a weak spot. As far as elsewhere, my phone spends most of its time on B41. Highest DL was 73Mbps with the average around 30. Quote Link to comment Share on other sites More sharing options...
Dkoellerwx Posted October 7, 2014 Share Posted October 7, 2014 not so much with speed but more bandwidth and capacity. so naturally it can accommodate more people and less decrease on data speeds. Maybe I'm wrongIt's all about the amount of spectrum used. 5MHz at 800 has the same speed and capacity as 5Mhz at 2500. Band 41 uses 20MHz (TDD-LTE) whereas 5x5MHz (FDD-LTE) is used for 800 and 1900. Sent from my LG G3 3 Quote Link to comment Share on other sites More sharing options...
mc4spr Posted October 7, 2014 Author Share Posted October 7, 2014 It's all about the amount of spectrum used. 5MHz at 800 has the same speed and capacity as 5Mhz at 2500. Band 41 uses 20MHz (TDD-LTE) whereas 5x5MHz (FDD-LTE) is used for 800 and 1900. Sent from my LG G3 I understand your point. But higher frequency has a higher energy and propagates less than a lower frequency signal. so given the same amount of spectrum, a higher frequency should be able to carry more data. otherwise, whats the tradeoff between 2.5 GHz vs 800 Mhz frequency? when 800 penetrates better than 2.5? Quote Link to comment Share on other sites More sharing options...
Dkoellerwx Posted October 7, 2014 Share Posted October 7, 2014 I understand your point. But higher frequency has a higher energy and propagates less than a lower frequency signal. so given the same amount of spectrum, a higher frequency should be able to carry more data. otherwise, whats the tradeoff between 2.5 GHz vs 800 Mhz frequency? when 800 penetrates better than 2.5?The tradeoff is more spectrum. Frequency has no bearing on speed or capacity. The wider the pipe, the more capacity/speed. Sent from my LG G3 3 Quote Link to comment Share on other sites More sharing options...
ericdabbs Posted October 7, 2014 Share Posted October 7, 2014 No and not for a while. Give your thanks to San Bernardino County who is cockblocking the entire southern California and southern Nevada region. Sent from my Nexus 5 using Tapatalk So is san Bernardino county the only spectrum squatter left that is preventing LTE 800 from being deployed? All of the OC has already rebanded to allow Sprint to deploy LTE 800? Quote Link to comment Share on other sites More sharing options...
newyork4me Posted October 7, 2014 Share Posted October 7, 2014 So is san Bernardino county the only spectrum squatter left that is preventing LTE 800 from being deployed? All of the OC has already rebanded to allow Sprint to deploy LTE 800? The OC is subjected to the IBEZ blackout, so San Bernardino county isn't affecting them too much. Quote Link to comment Share on other sites More sharing options...
bigmachine Posted October 7, 2014 Share Posted October 7, 2014 I'm not an EE, nor do I pretend to be, but this formula for channel capacity might help. Notice how channel capacity is related to bandwidth not frequency: http://en.wikipedia.org/wiki/Shannon–Hartley_theorem 1 Quote Link to comment Share on other sites More sharing options...
WiWavelength Posted October 7, 2014 Share Posted October 7, 2014 I'm not an EE, nor do I pretend to be, but this formula for channel capacity might help. Notice how channel capacity is related to bandwidth not frequency: http://en.wikipedia.org/wiki/Shannon–Hartley_theorem Yep, the Shannon-Hartley theorem is the historical foundation for modern digital communications. AJ 4 Quote Link to comment Share on other sites More sharing options...
JonnygATL Posted October 7, 2014 Share Posted October 7, 2014 Yep, the Shannon-Hartley theorem is the historical foundation for modern digital communications. AJ I can't wait to dig into this. Quote Link to comment Share on other sites More sharing options...
WiWavelength Posted October 7, 2014 Share Posted October 7, 2014 And for the record, I, too, am not an EE -- but I regularly am mistaken for one -- even though I did not stay at a Holiday Inn Express last night. AJ 2 Quote Link to comment Share on other sites More sharing options...
skid71 Posted October 7, 2014 Share Posted October 7, 2014 Yep, the Shannon-Hartley theorem is the historical foundation for modern digital communications. AJ There isn't a day that goes by that I don't say the same thing. Like maybe between 20-25 times. Quote Link to comment Share on other sites More sharing options...
WiWavelength Posted October 7, 2014 Share Posted October 7, 2014 There isn't a day that goes by that I don't say the same thing. Like maybe between 20-25 times. You should also add the Nyquist-Shannon sampling theorem to your daily recitation. http://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem AJ 2 Quote Link to comment Share on other sites More sharing options...
skid71 Posted October 7, 2014 Share Posted October 7, 2014 You should also add the Nyquist-Shannon sampling theorem to your daily recitation. http://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem AJ AJ, you and I both know that the Nyquist-Shannon sampling theorem is complete and utter horse dung. Quote Link to comment Share on other sites More sharing options...
WiWavelength Posted October 7, 2014 Share Posted October 7, 2014 AJ, you and I both know that the Nyquist-Shannon sampling theorem is complete and utter horse dung. The vinyl LP adherents would certainly say so. AJ 1 Quote Link to comment Share on other sites More sharing options...
mc4spr Posted October 7, 2014 Author Share Posted October 7, 2014 I only took basic physics for premedical requisites but from what I remember the higher the frequency the higher the energy. How does that play in wireless industry? there has to be an advantage to a higher frequency where as in lower frequency the electromagnetic wave travels longer and penetrates better Quote Link to comment Share on other sites More sharing options...
Dkoellerwx Posted October 7, 2014 Share Posted October 7, 2014 I only took basic physics for premedical requisites but from what I remember the higher the frequency the higher the energy. How does that play in wireless industry? there has to be an advantage to a higher frequency where as in lower frequency the electromagnetic wave travels longer and penetrates better For all intents and purposes, higher frequency spectrum has no advantages over the lower frequencies. In fact, higher frequencies are at a disadvantage to lower frequencies. That's why there was such a fight over the 700 holdings, and such drooling over the supposed 600 auctions (that may or may not happen). The only reason Sprint is gung ho about it's 2.5GHz holdings is because it has so much of it. 1 Quote Link to comment Share on other sites More sharing options...
Paynefanbro Posted October 7, 2014 Share Posted October 7, 2014 For all intents and purposes... Intents AND purposes Quote Link to comment Share on other sites More sharing options...
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