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Everything 800mhz (1xA, LTE, coverage, timeline, etc)


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Just because it supports it doesn't mean it is enabled. The Note2 shows and PhotonQ is in the same boat or should no say PRL series.

 

One of these phones has an issue with 800smr.

 

The GS2 didn't have 800smr for a while either.

 

Sent from my little Note2

 

 

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Makes sense, and once they have jailbreak, the PRL can be sideloaded.

 

I'm not too worried about 1x on BC10, but now that I read this, brings to mind my cousin who's in Chicago using an iPhone 5, and his dropped calls.

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Yep. You could have an iphone5 and GS3 next to each other and voice coverage would be drastically different side by side. The average user not in the know would just say the one phone sucked.

 

Sent from my little Note2

 

 

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I know this question has many variables, but lets say in a mostly flat rural area, with minimal downtilt (tower optimized for coverage, not capacity) does anyone know how much further 800 mhz on 1x can travel vs 1900 mhz on 1x while on the same tower broadcasting at the same power/downtilt?

 

I stayed connected to SMR 800 for about 15 miles past the last shown-live-with-SMR site on the maps here, along the route I took. If no other sites were live at the time then that's about how far out I was able to stay connected. I seem to recall my signal strength slowly dropping on SMR 800 as I went further east from Kouts, IN where that site was (hope I'm allowed to say that) until it got to about -101 DB or so and then connected to the nearest 1900-only site.

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I stayed connected to SMR 800 for about 15 miles past the last shown-live-with-SMR site on the maps here, along the route I took. If no other sites were live at the time then that's about how far out I was able to stay connected. I seem to recall my signal strength slowly dropping on SMR 800 as I went further east from Kouts, IN where that site was (hope I'm allowed to say that) until it got to about -101 DB or so and then connected to the nearest 1900-only site.

 

I have some experience with 850 meg. It all depends on the obstructions between the cell site and you. In open territory, 8 miles is quite common and I have seen a rare occasion of about 15 miles, but that is the exception. At 15 miles, you do not have any reliability or guarantee of being able to hold the call. Don't walk or drive behind anything or the call will be gone.

 

If you do have natural or man made obstructions, you can have issues at 3 miles. I have seen issues at less than 3 miles. Your home or business is behind a hill, the building is constructed of block, brick or stone with tinted windows, or partly underground.

Each situation is different and while 800 meg will probably help most everyone, it will not solve every problem.

 

It is going to be a big plus for Sprint users that now have questionable service.

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I have some experience with 850 meg. It all depends on the obstructions between the cell site and you. In open territory, 8 miles is quite common and I have seen a rare occasion of about 15 miles, but that is the exception. At 15 miles, you do not have any reliability or guarantee of being able to hold the call. Don't walk or drive behind anything or the call will be gone.

 

If you do have natural or man made obstructions, you can have issues at 3 miles. I have seen issues at less than 3 miles. Your home or business is behind a hill, the building is constructed of block, brick or stone with tinted windows, or partly underground.

Each situation is different and while 800 meg will probably help most everyone, it will not solve every problem.

 

It is going to be a big plus for Sprint users that now have questionable service.

 

Yeah my example is pretty much line of sight, flat open land. I know how bad it can be, even on 850! We had AT&T previous, the serving site was 1 mile from our house. There is alot of forest and houses between us and that tower. For years the service was always great, pretty decent signal. Something changed, and even with 850 the service from that site became unusable much of the time.

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A question: I live in far northwest Chicagoland. This week, my GS3 has been mostly locked onto SMR 800 (SID=224xx, Ch 476). I live near a Sprint cell which apparently does not yet have SMR 800 enabled, while according to the Sponsor maps, and observations I have made while driving around (thank you, SignalCheck!), most of the other towers near me do have SMR 800 turned on. My question is: When I am really, really close to a non-800 tower (I drove within 100 yards of my nearest cell this morning, so I should have had a really strong signal), will 1900 take over my connection, or will the more distant 800 towers retain "control"? I am fairly certain that I never connected with SMR 800 1xRTT from my local tower, because its BSID has never showed up when I am SMR-800-connected. During the past several days, I seem to have been connected with 800 most of the time, except 1 day when it just went away, and my phone didn't see it again for about 24 hours no matter where I drove.

 

Constant 800 access out in the ex-urbs where I am seems to have improved call quality, but I am not certain, because just after 800 apparently came on-line full-time, I got an Airave. Since I spend my days cloistered in my basement office, I really need the Airave connection for business calls, so I haven't turned it off to check how 800 is working underground (pre-Airave, my 1900 office connections ranged from bad to horrible to none).

 

Does anyone understand this better than I do?

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A question: I live in far northwest Chicagoland. This week, my GS3 has been mostly locked onto SMR 800 (SID=224xx, Ch 476). I live near a Sprint cell which apparently does not yet have SMR 800 enabled, while according to the Sponsor maps, and observations I have made while driving around (thank you, SignalCheck!), most of the other towers near me do have SMR 800 turned on. My question is: When I am really, really close to a non-800 tower (I drove within 100 yards of my nearest cell this morning, so I should have had a really strong signal), will 1900 take over my connection, or will the more distant 800 towers retain "control"? I am fairly certain that I never connected with SMR 800 1xRTT from my local tower, because its BSID has never showed up when I am SMR-800-connected. During the past several days, I seem to have been connected with 800 most of the time, except 1 day when it just went away, and my phone didn't see it again for about 24 hours no matter where I drove.

 

Constant 800 access out in the ex-urbs where I am seems to have improved call quality, but I am not certain, because just after 800 apparently came on-line full-time, I got an Airave. Since I spend my days cloistered in my basement office, I really need the Airave connection for business calls, so I haven't turned it off to check how 800 is working underground (pre-Airave, my 1900 office connections ranged from bad to horrible to none).

 

Does anyone understand this better than I do?

 

I'd be curious to see if you unplugged your Airrave what kind of signal you're getting now that 800 is deployed in your area.

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My question is: When I am really, really close to a non-800 tower (I drove within 100 yards of my nearest cell this morning, so I should have had a really strong signal), will 1900 take over my connection, or will the more distant 800 towers retain "control"?

 

No, as long as Ec/Io (signal quality) from a more distant CDMA1X 800 site remains above a certain threshold, your handset will not likely handoff to the closer CDMA1X 1900 site, not even if you are sitting on one of the panels.

 

AJ

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No, as long as Ec/Io (signal quality) from a more distant CDMA1X 800 site remains above a certain threshold, your handset will not likely handoff to the closer CDMA1X 1900 site, not even if you are sitting on one of the panels.

 

AJ

 

Probably not the safest thing in the world to be sitting upon though

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No, as long as Ec/Io (signal quality) from a more distant CDMA1X 800 site remains above a certain threshold, your handset will not likely handoff to the closer CDMA1X 1900 site, not even if you are sitting on one of the panels.

 

AJ

 

Just don't pay attention to the slight warm tingly feeling you get in your leg as it dangles over the front of the panel face.

 

Also I'm not sure how much I would place certainty with an app telling you where a site is at. Only way to tell is to drive around to the different faces of the site and see if the PN changes. They will be offset by 3. Good ole school triangulation almost like playing "rabbit" on the CB radio back in the day! (so much fun!!!)

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I'd be curious to see if you unplugged your Airrave what kind of signal you're getting now that 800 is deployed in your area.

 

Me, too. I plan to unplug it for a while this weekend and check things out.

 

 

No, as long as Ec/Io (signal quality) from a more distant CDMA1X 800 site remains above a certain threshold, your handset will not likely handoff to the closer CDMA1X 1900 site, not even if you are sitting on one of the panels.

 

AJ

 

Thanks, AJ, that makes sense.

 

 

Just don't pay attention to the slight warm tingly feeling you get in your leg as it dangles over the front of the panel face.

 

 

Warm & tingly would be good, right now: This afternoon, the temperature in the NW 'Burbs has surged to +5 degrees, must be even toastier 192' up with a wind chill!

 

 

Also I'm not sure how much I would place certainty with an app telling you where a site is at. Only way to tell is to drive around to the different faces of the site and see if the PN changes. They will be offset by 3. Good ole school triangulation almost like playing "rabbit" on the CB radio back in the day! (so much fun!!!)

 

I have been checking BSID's for weeks months -- It has become an obsession, or maybe a sign of onrushing senility: For example, the nearby tower in question shows BSID's of 21153 & 21154 in the directions that I drive (and I presume 21152 or 21155 in the 3rd sector, but I haven't driven completely around it to check), and it and the other towers in my vicinity (and, as far as I can tell, throughout NE Illinois) actually show the true co-ordinates on Netview, CDMA Field Test, etc., and show up on Google maps absolutely dead on top of photos of the towers. One of my daughters lives in Milwaukee, on the other hand, only 1 block from a Sprint cell on an apartment building, and her cell shows up either in the middle of Lake Michigan, or about a mile west of where it actually is (or, probably, about a mile north, but I haven't looked), so I have learned to be suspicious.

 

Besides, you knowledgeable guys will take me out back of the woodshed and whup me one if I get it wrong. :)

 

[FWIW, Google Maps shows that my new Airave is located in a lilac bush out in my yard, but I guess that's ok, it's only wrong by about 30 feet.]

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Ladies and gentlemen, I give you CDMA1X 800...

 

8y6clz.png

 

AJ

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Ladies and gentlemen, I give you CDMA1X 800...

 

8y6clz.png

 

AJ

 

Can you give us non-electrical engineers a plain English interpretation of what this is depicting? Was this sample taken from near a known network vision site?

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Can you give us non-electrical engineers a plain English interpretation of what this is depicting? Was this sample taken from near a known network vision site?

 

CDMA 1x 800 is live in Topeka, or Lawrence, wherever AJ took the test. So, yes, an active NV area. I'll let him explain the machine, lol.

 

Sent from my GS3 using Tapatalk 2

 

 

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Can you give us non-electrical engineers a plain English interpretation of what this is depicting? Was this sample taken from near a known network vision site?

 

It is a frequency domain sweep of the SMR 800 MHz band formerly occupied by Nextel iDEN. One of our members, leerage, tipped us off to some CDMA1X 800 in the vicinity of Topeka. I checked it out tonight and got the CDMA1X 800 carrier channel on my spectrum analyzer.

 

CDMA1X 800 is not any big news. Subs in several markets (Chicago, Boston, etc.) have been able to use CDMA1X 800 on selected sites for a while now. But this is the first RF sweep of it that we have captured.

 

If iDEN 800 were still active, you would see several tall, narrow spikes in the sweep. But the 1.25 MHz wide plateau you see centered at 862.9 MHz is CDMA1X 800 carrier channel SMR 476.

 

AJ

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