darickster09 Posted July 15, 2014 Share Posted July 15, 2014 Sorry I got mixed up. Was on mobile and didnt noticed that i was posting in a non member area... It wont happen again. But to me looking up i didnt see any wires coming from many of the antennas. And the site ID did not come from S4GRU. I got it at the site. It was on a sight behind the fence at the site. Thanks for the info. Is it hard for them to hide the cables behind the equipment? I mean to my eyes it looked as if hardly any of those antennas had any wires coming off of them. I wish i had my binoculars when i was out yesterday. Quote Link to comment Share on other sites More sharing options...
darickster09 Posted July 15, 2014 Share Posted July 15, 2014 Zooming in on the pictures on my computer once i got them from my phone it seems I see 1 wire going into the back of the antennas? is that how they actually are? the original 1900 LTE antennas? Quote Link to comment Share on other sites More sharing options...
lilotimz Posted July 15, 2014 Author Share Posted July 15, 2014 Zooming in on the pictures on my computer once i got them from my phone it seems I see 1 wire going into the back of the antennas? is that how they actually are? the original 1900 LTE antennas? Please consult original post Canadian IBEZ special case setup. Quote Link to comment Share on other sites More sharing options...
darickster09 Posted July 15, 2014 Share Posted July 15, 2014 that is awesome! thank you for the information lilotimz! Quote Link to comment Share on other sites More sharing options...
mhammett Posted July 15, 2014 Share Posted July 15, 2014 On towers I've personally built out, I can rarely see the cables that I know are there from the ground. Quote Link to comment Share on other sites More sharing options...
darickster09 Posted July 15, 2014 Share Posted July 15, 2014 yeah after looking at other pictures i notice the same so i assume that 1 cable is the only one needed to goto those antennas. Quote Link to comment Share on other sites More sharing options...
darickster09 Posted August 2, 2014 Share Posted August 2, 2014 Hey guys so today i ventured to an LTE site I had yet to venture to due to its location and saw the paperwork that was at that site attached to the fence in a plastic ziplock baggie. So i noticed on the front page it said "SPRINT NETWORK VISION MMBS LAUNCH" so what exactly is MMBS? I noticed that this site was only a B25 site with sub par speeds, and of note this site was also in the middle of nowhere, very minimal amount of people there in that area. The site ID is SE54XC084 if anyone was interested. And at the site there were 2 cabinets, with 3 more base mount slots for 3 more cabinets if that helps. I noticed the last person who had been there was the inspector for some work they had done previously. The date was 7/23/2014. so very recent. Ill upload a picture of something else I am curious about in a little bit that i noticed at the site. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
lilotimz Posted August 2, 2014 Author Share Posted August 2, 2014 Hey guys so today i ventured to an LTE site I had yet to venture to due to its location and saw the paperwork that was at that site attached to the fence in a plastic ziplock baggie. So i noticed on the front page it said "SPRINT NETWORK VISION MMBS LAUNCH" so what exactly is MMBS? I noticed that this site was only a B25 site with sub par speeds, and of note this site was also in the middle of nowhere, very minimal amount of people there in that area. The site ID is ------- if anyone was interested. And at the site there were 2 cabinets, with 3 more base mount slots for 3 more cabinets if that helps. I noticed the last person who had been there was the inspector for some work they had done previously. The date was 7/23/2014. so very recent. Ill upload a picture of something else I am curious about in a little bit that i noticed at the site. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
darickster09 Posted August 2, 2014 Share Posted August 2, 2014 Ah so its the cabinet then? Now I feel so dumb... We use similar cabinets like this where I work for our fiber optics... So i totally should of caught onto that. Epic Fail on my part Quote Link to comment Share on other sites More sharing options...
lilotimz Posted August 2, 2014 Author Share Posted August 2, 2014 Ah so its the cabinet then? Now I feel so dumb... We use similar cabinets like this where I work for our fiber optics... So i totally should of caught onto that. Epic Fail on my part MMBS = multi standard base station from Samsung BBU = backup battery unit 1 Quote Link to comment Share on other sites More sharing options...
vlee Posted September 3, 2014 Share Posted September 3, 2014 One day, someone will accidentally crack open one of those panels and then we can see what all those little antennas inside look like. Quote Link to comment Share on other sites More sharing options...
lilotimz Posted September 3, 2014 Author Share Posted September 3, 2014 One day, someone will accidentally crack open one of those panels and then we can see what all those little antennas inside look like. ahem. http://s4gru.com/index.php?/topic/3760-ever-wonder-whats-inside-one-of-those-big-cellular-panel-antennas/ 1 Quote Link to comment Share on other sites More sharing options...
vlee Posted September 3, 2014 Share Posted September 3, 2014 ahem. http://s4gru.com/index.php?/topic/3760-ever-wonder-whats-inside-one-of-those-big-cellular-panel-antennas/ Wow, they look nothing at all like I had imagined. Sent from my SM-N900P using Tapatalk Quote Link to comment Share on other sites More sharing options...
austintyppo Posted December 3, 2014 Share Posted December 3, 2014 Anyone have any idea whose these are? In case it is not clear, these are three seperate towers that are temporary towers at the University of the Pacific in Stockton, CA because the football stadium was demolished. I think that the tallest is an old MetroPCS tower that is now T-Mobile, the one with one panel per sector is Sprint and the middle with 2 panels per sector is Verizon. Am I right? How can you tell? Here are the pictures: http://imgur.com/plRwH6C http://imgur.com/zjGqxKa http://imgur.com/Kr8vWIV http://imgur.com/LeTZviu http://imgur.com/ytA6UTo http://imgur.com/nbxRn1r http://imgur.com/Qn8OnjD http://imgur.com/fqY01gl http://imgur.com/Sx0Vl1l Quote Link to comment Share on other sites More sharing options...
lilotimz Posted December 3, 2014 Author Share Posted December 3, 2014 Anyone have any idea whose these are? In case it is not clear, these are three seperate towers that are temporary towers at the University of the Pacific in Stockton, CA because the football stadium was demolished. I think that the tallest is an old MetroPCS tower that is now T-Mobile, the one with one panel per sector is Sprint and the middle with 2 panels per sector is Verizon. Am I right? How can you tell? Here are the pictures: http://imgur.com/plRwH6C http://imgur.com/zjGqxKa http://imgur.com/Kr8vWIV http://imgur.com/LeTZviu http://imgur.com/ytA6UTo http://imgur.com/nbxRn1r http://imgur.com/Qn8OnjD http://imgur.com/fqY01gl http://imgur.com/Sx0Vl1l This one is Sprints. Note the RRUs are the same ones in the first post of this thread and the antennas have 6 RF jumper ports. Quote Link to comment Share on other sites More sharing options...
austintyppo Posted December 3, 2014 Share Posted December 3, 2014 This one is Sprints. Note the RRUs are the same ones in the first post of this thread and the antennas have 6 RF jumper ports. Whose are This one is Sprints. Note the RRUs are the same ones in the first post of this thread and the antennas have 6 RF jumper ports. Whose are the other ones? ATT, Verizon, Tmobile.. ie. the other 3 that services the area. 1 Quote Link to comment Share on other sites More sharing options...
awsum gam3r Posted May 11, 2015 Share Posted May 11, 2015 upgraded cabinet On the left(from the one's in the picture), what ever is in this one. Quote Link to comment Share on other sites More sharing options...
RAvirani Posted January 15, 2017 Share Posted January 15, 2017 I don't know much about physical antennae but was a bit curious as to how the connectors at the bottom of the antenna were organized. From what I understand, NV panels have 4 PCS ports and 2 SMR ports. Why those numbers specifically? Why couldn't they just have 1 PCS and 1 SMR port? Quote Link to comment Share on other sites More sharing options...
lilotimz Posted January 15, 2017 Author Share Posted January 15, 2017 I don't know much about physical antennae but was a bit curious as to how the connectors at the bottom of the antenna were organized. From what I understand, NV panels have 4 PCS ports and 2 SMR ports. Why those numbers specifically? Why couldn't they just have 1 PCS and 1 SMR port?MIMO. You need multiple antennas. Standard nowadays is 2T2R which requires two separate transmit and receive oaths at the eNB and UE. Sent from my Pixel using Tapatalk Quote Link to comment Share on other sites More sharing options...
RAvirani Posted January 15, 2017 Share Posted January 15, 2017 MIMO. You need multiple antennas. Standard nowadays is 2T2R which requires two separate transmit and receive oaths at the eNB and UE. Sent from my Pixel using Tapatalk Ok so PCS: 2 ports for LTE, 1 port for EVDO/eHRPD, 1 port for 1x; SMR: 2 ports for LTE...what about 1x800? Quote Link to comment Share on other sites More sharing options...
lilotimz Posted January 15, 2017 Author Share Posted January 15, 2017 Ok so PCS: 2 ports for LTE, 1 port for EVDO/eHRPD, 1 port for 1x; SMR: 2 ports for LTE...what about 1x800?The transmit path is shared. Sent from my Pixel using Tapatalk Quote Link to comment Share on other sites More sharing options...
RAvirani Posted January 16, 2017 Share Posted January 16, 2017 The transmit path is shared. Sent from my Pixel using Tapatalk Why doesn't Sprint do that on PCS? If they shared the transmit path there, they could do 4x4 without a second antenna… Quote Link to comment Share on other sites More sharing options...
JWMaloney Posted January 16, 2017 Share Posted January 16, 2017 Why doesn't Sprint do that on PCS? If they shared the transmit path there, they could do 4x4 without a second antenna… The RRH has a limit to the number of carriers that can share a transmit path. For example, the Ericsson RRUS 35 supports a maximum of two LTE and six CDMA carriers simultaneously, but no more than 4 carriers can share any single transmit path. So to run the maximum number of carriers, you'll have two LTE and two CDMA carriers on one set of paths and four CDMA carriers on the other set. There's actually a site in Central, Lousiana that does run 4x4 MIMO with a single RRH and antenna, but it's only running one LTE carrier and presumably no more than 3 CDMA carriers. EDIT: I just noticed this was in the Samsung thread, so perhaps someone who is more familiar with that equipment could offer more details about its specific limitations. Quote Link to comment Share on other sites More sharing options...
lilotimz Posted January 16, 2017 Author Share Posted January 16, 2017 The RRH has a limit to the number of carriers that can share a transmit path. For example, the Ericsson RRUS 35 supports a maximum of two LTE and six CDMA carriers simultaneously, but no more than 4 carriers can share any single transmit path. So to run the maximum number of carriers, you'll have two LTE and two CDMA carriers on one set of paths and four CDMA carriers on the other set. There's actually a site in Central, Lousiana that does run 4x4 MIMO with a single RRH and antenna, but it's only running one LTE carrier and presumably no more than 3 CDMA carriers. EDIT: I just noticed this was in the Samsung thread, so perhaps someone who is more familiar with that equipment could offer more details about its specific limitations. It's a similar deal with all of sprints dual rat equipment. Sent from my Pixel using Tapatalk Quote Link to comment Share on other sites More sharing options...
Mike Posted March 7, 2019 Share Posted March 7, 2019 Interesting information. Any idea on the total number of Samsung systems deployed within Sprint? Quote Link to comment Share on other sites More sharing options...
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