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mikejeep

SignalCheck - Android app to monitor your 2G/3G/4G LTE signal strengths

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I released an update (2.13) earlier tonight, it should be available on Google Play by now. If you were experiencing any crashes or other problems, especially when you connected to LTE, please try this version out.

 

Pro users: New features include the option to start the notification part of the app every time your device boots, and another option to keep the screen on whenever SignalCheck is in the foreground.

 

-Mike

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Just downloaded the Pro version. This will come in handy as LTE starts lighting up in my area. Thanks!

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I just bought the pro version since I think the features in the light app alone deserve $2. Seriously, thanks for this. It's simple, easy access to info I would otherwise not be able to see.

 

I have a few requests though. For the signal bars, would it be possible to add some options? First, I think it would be nice to be able to optionally show two sets of bars when connected to multiple cellular standards? It would be particularly useful when connected to LTE, as 1x site density is higher and maintains a useful connection at a lower RSSI. To be able to distinguish what each set means, a 4G/3G/1x indicator could be used.

 

Additionally, themes for the bars would be wonderful. Several simple options would be fine. I'm thinking AOSP, TouchWiz, Sense, and the current theme. It would make the bars "fit in" much better.

 

Thank you again for your work on this app.

 

 

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I love the app, it's awesome and most importantly, the developer is constantly updating and working on it. Mad props!!!

 

I'd just have one request. In the status bar, top left corner, instead of the bars drawn, have the option for dBm value displayed instead, for LTE (RSRP, RSRQ) and for legacy RSSI.

 

This would be the most convenient way to always have access to your RIL reading, no matter what app you're in. Also, maybe the ability to change the sampling rate while the app is running in the foreground.

 

Thanks again!

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I just bought the pro version since I think the features in the light app alone deserve $2. Seriously, thanks for this. It's simple, easy access to info I would otherwise not be able to see.

 

I have a few requests though. For the signal bars, would it be possible to add some options? First, I think it would be nice to be able to optionally show two sets of bars when connected to multiple cellular standards? It would be particularly useful when connected to LTE, as 1x site density is higher and maintains a useful connection at a lower RSSI. To be able to distinguish what each set means, a 4G/3G/1x indicator could be used.

 

Additionally, themes for the bars would be wonderful. Several simple options would be fine. I'm thinking AOSP, TouchWiz, Sense, and the current theme. It would make the bars "fit in" much better.

 

Thanks for your support! Knowing it's useful is more valuable to me than your $2.. but I do appreciate that too. :) Now that I appear to have squashed all of the bugs and get it stable, I intend to add more new features. Regarding multiple icons, I thought that most (if not all) devices already show the 1X signal strengths on their default bars on the top right side of the screen.. no? That was my major motivation to create this app in the first place. Perhaps I'm not totally understanding what you're looking for. Feel free to shoot me a PM if you want.

 

One of my next goals is to mark the signal type on the signal bar icon, by adding text and/or color. This is my first app, and I'm learning as I go, but I'll see how I can implement themes also. I definitely understand what you mean about fitting in.. I'm sure it looks quite out of place on some ROMs.

 

I love the app, it's awesome and most importantly, the developer is constantly updating and working on it. Mad props!!!

 

I'd just have one request. In the status bar, top left corner, instead of the bars drawn, have the option for dBm value displayed instead, for LTE (RSRP, RSRQ) and for legacy RSSI.

 

This would be the most convenient way to always have access to your RIL reading, no matter what app you're in. Also, maybe the ability to change the sampling rate while the app is running in the foreground.

 

Thank you for the props! :) Hadn't thought to offer a text-based display in the notification bar; I will put it on my list.

 

The sampling rate is not really a "rate" at all.. without getting too technical, it's not a fixed period of time. Whenever the device reports that any signal strength has changed, the app is refreshed.. so it's essentially realtime data.

 

-Mike

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The sampling rate is not really a "rate" at all.. without getting too technical, it's not a fixed period of time. Whenever the device reports that any signal strength has changed, the app is refreshed.. so it's essentially realtime data.

 

If this info is useful to you, most/all internal engineering screens do have a sample rate setting. For CDMA1X, any sample rate greater than once every 5.12 seconds tends to be excessive. Nearly all CDMA1X networks are configured to use slot cycle index 2, which means that idle handsets sleep, then wake up briefly to measure the pilot and monitor the paging channel only once every 5.12 seconds.

 

AJ

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Regarding multiple icons, I thought that most (if not all) devices already show the 1X signal strengths on their default bars on the top right side of the screen.. no? That was my major motivation to create this app in the first place. Perhaps I'm not totally understanding what you're looking for. Feel free to shoot me a PM if you want.

 

I think most phones/ROMs are set to work that way, but I'm certain that there are exceptions. Cyanogenmod shows the signal strength of the highest-level protocol the phone is connected to. So, when my phone is connected to 4G, I have no idea what my actual 1x signal strength is. Other AOSP ROMs probably work similarly, and I believe LG devices work that way by default.

 

Additionally, AOSP has a less precise signal indicator than what your app shows. Having two sets of bars from your app would allow users to just disable the system signal bars (if their ROM allows it) and get a better "read" on their signal.

 

I'm also curious about the way your app shows LTE signal strength. The signal strength appears much stronger than what CM10.1 displays for LTE. At -110 dBm RSRP, when LTE performance starts to significantly degrade, CM10.1 displays one bar out of 4, but SignalCheck displays about four out of seven.

 

Thank you for being so responsive.

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Wow.. Cm only shows 4 bars total? Wonder why they don't do more? Makes it easier to see what's going on with the 6? I do prefer the numbers though.

 

Sent from my little Note2

 

 

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That's why it'd be helpful to have bars replaced with the actual value in dBm. Having a secondary signal bars indicator is a bit redundant and could be confusing.

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Just ordered Pro of your software. Can't wait to give it a go when LTE hunting. Thanks for all your hard work!

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I think most phones/ROMs are set to work that way, but I'm certain that there are exceptions. Cyanogenmod shows the signal strength of the highest-level protocol the phone is connected to. So, when my phone is connected to 4G, I have no idea what my actual 1x signal strength is. Other AOSP ROMs probably work similarly, and I believe LG devices work that way by default.

 

Additionally, AOSP has a less precise signal indicator than what your app shows. Having two sets of bars from your app would allow users to just disable the system signal bars (if their ROM allows it) and get a better "read" on their signal.

 

Ah, I understand now. I am still working on getting this to work well; my biggest hurdle at the moment is my lack of graphic design skills.. having trouble adding text to my icons that is readable. If anyone is talented enough to help with that, or can at least point me towards a decent icon creation tool, I'd appreciate it!

 

I'm also curious about the way your app shows LTE signal strength. The signal strength appears much stronger than what CM10.1 displays for LTE. At -110 dBm RSRP, when LTE performance starts to significantly degrade, CM10.1 displays one bar out of 4, but SignalCheck displays about four out of seven. Thank you for being so responsive.

 

SignalCheck draws the 6 signal bars based on RSSI, even for LTE (it calculates the RSSI based on given RSRP & RSRQ). I set the cutoffs in a fairly linear fashion; 4/6 bars would be -94 to -85 dBm RSSI. -110 dBm RSSI would be 2/6 in my app, pretty consistent with CM's 1/4 showing for -110 RSRP. Maybe CM just takes whatever signal value the phone is giving out (whether it is RSSI or RSRP) and uses that to display the bars. Or, they are smarter than me (probably true!) and feel that -110 RSRP only deserves 1/4 bars :)

 

I was always curious if people would think the bars were displaying too high/too low; you're the first to bring it up. I have no problem tweaking the values if anyone thinks it will make the app more accurate. When I started developing SignalCheck, I basically set the values by slicing up the usable RSSI dBm range into mostly equal segments (<75, <85, <95, <105, <115, <120). I have no idea where other apps/ROMs set their cutoffs.

 

For LTE signals, I felt that calcuating RSSI based on RSRP & RSRQ would give a more useful measure of the true signal strength, instead of just RSRP (i.e. 'good' RSRP with 'good' RSRQ should be shown as better than 'good' RSRP with 'bad' RSRQ). Perhaps some of the gurus on here can advise if that was a reasonable idea or not?

 

-Mike

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Ah, I understand now. I am still working on getting this to work well; my biggest hurdle at the moment is my lack of graphic design skills.. having trouble adding text to my icons that is readable. If anyone is talented enough to help with that, or can at least point me towards a decent icon creation tool, I'd appreciate it!

I don't know much about making icons or what tools to use, but for themes that mesh with the different standard UIs (TouchWiz, Sense, AOSP, etc.) you could start with (or possibly straight up use) the icons in the SystemUI.apk files from the respective ROMs.

 

 

I was always curious if people would think the bars were displaying too high/too low; you're the first to bring it up. I have no problem tweaking the values if anyone thinks it will make the app more accurate. When I started developing SignalCheck, I basically set the values by slicing up the usable RSSI dBm range into mostly equal segments (<75, <85, <95, <105, <115, <120). I have no idea where other apps/ROMs set their cutoffs.

Ah, this would explain it. Those thresholds seem pretty low, even for CDMA 1x. 1x is the most robust out of 1x, EVDO, and LTE, and it gets pretty flaky at -110 dBm, even with good Ec/Io. EVDO gets unreliable at around -105 dBm or so, and LTE at around -95 dBm (for 5 MHz bandwidth).

 

I would revamp those scales a bit, by making separate ones for each protocol, possibly factoring in signal quality, and adding a category for zero bars, signifying "you technically have service, but good luck".

 

This would be an example scale for 1x.

 

SS: -74 -80 -86 -92 -98 -104 -110

Bars: 6 5 4 3 2 1 0

SS = RSSI + 2 * ( (Ec/Io) + 3) )

 

For LTE signals, I felt that calcuating RSSI based on RSRP & RSRQ would give a more useful measure of the true signal strength, instead of just RSRP (i.e. 'good' RSRP with 'good' RSRQ should be shown as better than 'good' RSRP with 'bad' RSRQ). Perhaps some of the gurus on here can advise if that was a reasonable idea or not?

 

RSSI isn't a good indicator for LTE signal 'strength'. It varies with bandwidth, and it actually looks better if the quality of the signal is reduced by strong interference. RSRP doesn't have those problems. RSRQ should be factored in somehow, but I believe it also varies with bandwidth. I would ask someone like WiWavelength for advice on a good scale for LTE signals.

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RSSI isn't a good indicator for LTE signal 'strength'. It varies with bandwidth, and it actually looks better if the quality of the signal is reduced by strong interference. RSRP doesn't have those problems. RSRQ should be factored in somehow, but I believe it also varies with bandwidth. I would ask someone like WiWavelength for advice on a good scale for LTE signals.

Definitely look for AJ's input on this one, but wouldn't it be simpler and easier for everyone to have the dBm values in top left corner instead of bars?

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Definitely look for AJ's input on this one, but wouldn't it be simpler and easier for everyone to have the dBm values in top left corner instead of bars?

 

I plan on talking to him about this :) I am still working on the numeric values; right now the only solution I have is to create a separate icon for each number.. which complicates things further if I want to include 1X/3G/4G displaying as well. Seems silly, but Android only allows graphics up there.. so I'm trying to implement it as efficiently as possible.

 

-Mike

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Per my understanding, LTE never uses RSSI to determine handoff to another sector (or network reselection back down to eHRPD/EV-DO). Rather, for that purpose, LTE uses both RSRP and RSRQ.

 

Per my experience, RSRP is the better gauge of coverage limits for individual sectors or the network as a whole. If RSRP falls to -120 dBm for a few seconds, handoff or network reselection is likely to follow.

 

I have not observed RSRQ closely enough to find any definite patterns regarding handoff or reselection. But RSRQ may be the better gauge of expected data speeds, since it is designed to measure signal quality.

 

AJ

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The only thing this app is missing is an ability to customize the tone played when a 4G connection is found. I'm thinking some deep mechanical sounding voice, similar to some of the futuristic first person shooters I used to play saying, "4G LTE found"

 

Something like this

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Too bad Don LaFontaine isn't still around.. I could hire him to say something cool in his unbeatable movie trailer voice! Anyways, user-selected sounds is on my to-do list.. I know that someone (possibly you?) asked for it awhile ago, and I haven't forgotten. It will be up to you to find the cool sounds, but at least you'll have the option.

 

Right now I'm concentrating my efforts on getting the signal reading to display as text in the status bar so milan03 gets off my back.. ;) Making good progress on that.. should have something released very soon.

 

Still looking into multiple simultaneous icons also. Will get going on that once I finish perfecting the single-icon text display.

 

Hoping to get somewhere with LTE cell IDs as well, but that's more complicated since I don't have a live 4.2 device to test it on right now. I just discovered a way to dual-boot my EVO, so I'm going to try putting a 4.2 ROM on there so I can get working on that. The dual-boot method doesn't work.. I'll come up with something, but it may take some time.

 

-Mike

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Not me, I just started using your app last week, but it is very helpful :)

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Just a quick chime in to show support. I have the been using v2.13 Pro since last week when jefbal99 pointed me to it. I'm very happy and content with it. My only suggestion was going to be the ability to set a unique audio notification, but I see you already have that planned. Awesome support! You stated working on this before I could even ask for it!

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Just a quick chime in to show support. I have the been using v2.13 Pro since last week when jefbal99 pointed me to it. I'm very happy and content with it. My only suggestion was going to be the ability to set a unique audio notification, but I see you already have that planned. Awesome support! You stated working on this before I could even ask for it!

 

Thanks for the kind words, Bruce! I am very close to having user-selected alert tones working.. it's been more difficult than I hoped, but I'll get there. Very glad to hear it will be useful to people! I also have some new status bar icon options in the upcoming release.. stay tuned :)

 

-Mike

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Maybe someone can shed some light on this... When I landed in Charlotte I could see a -100dbm LTE signal on the SignalCheck app, but it never actually connected. Anyone see this before?

(This is from another thread; I'm replying here to keep it on-topic)

 

A few weeks ago, cgass mentioned the same thing (here). I have seen this myself numerous times.. to me, it seemed to happen more frequently when the LTE rollout in my area was still in the very very early stages, but that certainly could just be a coincidence. Perhaps it's seeing something from a site that is broadcasting but the general public cannot connect to it yet? I really don't know.

 

In my reply to cgass (here), I wondered out loud in one of my posts if this behavior could help explain why the EVO LTE seems to have trouble connecting (and holding onto) LTE where some other devices have no problem at all. It made me very curious, since many people (most of whom know way more about this stuff than I do) claimed it was a problem with the EVO's antenna or reception capabilities. My uneducated opinion is that it is a firmware or software issue, not hardware. Seeing LTE signal through SignalCheck despite my EVO not connecting to it was a large part of forming that opinion.

 

As the developer, I can tell you that SignalCheck will display any signals the device "sees", regardless of the technology the device is connected to at the time. To put it as basic as I can.. the "get the signal strength measurement" part of the code is independent of the "are we on 2G, 3G, or 4G right now" part of the code. SignalCheck doesn't really calculate a whole lot on its own; that's by design. If your device "sees" -105 dBm RSRP LTE, SignalCheck is just going to show you. The app doesn't care if it's actually connected to LTE or not.

 

Once I get LTE Cell IDs working, it will be very interesting to see if there is any correlation between the availability/completion level of the site and the ability to "see" signals that you can't connect to.

 

-Mike

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(This is from another thread; I'm replying here to keep it on-topic)

 

A few weeks ago, cgass mentioned the same thing (here). I have seen this myself numerous times.. to me, it seemed to happen more frequently when the LTE rollout in my area was still in the very very early stages, but that certainly could just be a coincidence. Perhaps it's seeing something from a site that is broadcasting but the general public cannot connect to it yet? I really don't know.

 

In my reply to cgass (here), I wondered out loud in one of my posts if this behavior could help explain why the EVO LTE seems to have trouble connecting (and holding onto) LTE where some other devices have no problem at all. It made me very curious, since many people (most of whom know way more about this stuff than I do) claimed it was a problem with the EVO's antenna or reception capabilities. My uneducated opinion is that it is a firmware or software issue, not hardware. Seeing LTE signal through SignalCheck despite my EVO not connecting to it was a large part of forming that opinion.

 

As the developer, I can tell you that SignalCheck will display any signals the device "sees", regardless of the technology the device is connected to at the time. To put it as basic as I can.. the "get the signal strength measurement" part of the code is independent of the "are we on 2G, 3G, or 4G right now" part of the code. SignalCheck doesn't really calculate a whole lot on its own; that's by design. If your device "sees" -105 dBm RSRP LTE, SignalCheck is just going to show you. The app doesn't care if it's actually connected to LTE or not.

 

Once I get LTE Cell IDs working, it will be very interesting to see if there is any correlation between the availability/completion level of the site and the ability to "see" signals that you can't connect to.

 

-Mike

 

Oh my question was never about the app; I never had any doubts that the LTE connection it was seeing was real. Just curious as to why my phone wasn't connecting in an area known to have LTE, hence why I replied in the thread I did. My guess would be the the signal is just unusable, due to testing or any other reason. The signal strength that was displayed was well with the Evo's ability to connect to. I'd be surprised to learn if it is indeed just an Evo problem.

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(This is from another thread; I'm replying here to keep it on-topic)

 

A few weeks ago, cgass mentioned the same thing (here). I have seen this myself numerous times.. to me, it seemed to happen more frequently when the LTE rollout in my area was still in the very very early stages, but that certainly could just be a coincidence. Perhaps it's seeing something from a site that is broadcasting but the general public cannot connect to it yet? I really don't know.

 

In my reply to cgass (here), I wondered out loud in one of my posts if this behavior could help explain why the EVO LTE seems to have trouble connecting (and holding onto) LTE where some other devices have no problem at all. It made me very curious, since many people (most of whom know way more about this stuff than I do) claimed it was a problem with the EVO's antenna or reception capabilities. My uneducated opinion is that it is a firmware or software issue, not hardware. Seeing LTE signal through SignalCheck despite my EVO not connecting to it was a large part of forming that opinion.

 

As the developer, I can tell you that SignalCheck will display any signals the device "sees", regardless of the technology the device is connected to at the time. To put it as basic as I can.. the "get the signal strength measurement" part of the code is independent of the "are we on 2G, 3G, or 4G right now" part of the code. SignalCheck doesn't really calculate a whole lot on its own; that's by design. If your device "sees" -105 dBm RSRP LTE, SignalCheck is just going to show you. The app doesn't care if it's actually connected to LTE or not.

 

Once I get LTE Cell IDs working, it will be very interesting to see if there is any correlation between the availability/completion level of the site and the ability to "see" signals that you can't connect to.

 

-Mike

 

I experienced the same thing at work last week. The tower has been listed as having LTE complete for the past couple of weeks but I could never connect. LTE signal would show up in the app, but the phone would never connect. Today, I was able to connect to LTE for the first time. My guess is that when the towers are blocked, the phone still picks up the signal, it just can't connect.

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I experienced the same thing at work last week. The tower has been listed as having LTE complete for the past couple of weeks but I could never connect. LTE signal would show up in the app, but the phone would never connect. Today, I was able to connect to LTE for the first time. My guess is that when the towers are blocked, the phone still picks up the signal, it just can't connect.

It's probably because at the early stage of LTE deployment and testing, only RF engineers are provisioned to authenticate to LTE network for testing purposes, most likely with different APN settings. Once that LTE cell site is properly set up and tested, they open it up which would explain why we sometimes see LTE network, but are unable to connect with our commercial equipment and default APN.

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Any plans for a widget?

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      I am running the same routes in a rental van with the Tri-Band Modem that I normally use the other units on. There is less downtime in the signal gaps I am familiar with and areas where I have had signal problems in both 3G and 4G WiMax are much improved. I have yet to encounter any more 4G LTE signals but am looking forward to the service coming online soon. The unit seems to be running hotter than I would like with a fully charged battery but is actually cooler that the previous Hotspots. The temperature is supposed to soar over the next few days without the cloudiness we have had this past week. So it will be interesting to see if the overheating problems of previous models still occur.
       
      Week 2 – The True test
      The unit is getting worked really hard this week with temperatures outside up near 100 degrees. The GPS is useless with this kind of sun load as the unit will overheat if left in direct sunlight (as the instructions state) in about 20 minutes. The good news is that this is about twice as long as my original Hotspot will last. How anyone can make a unit that requires a clear view of the sky for GPS but can’t handle sunlight is beyond comprehension. A quick check of the Tri-Band’s temperature specs shows that the unit is only rated for 95 degrees. The prior Hotspot was rated well above the century mark but couldn’t even handle 90 degrees for any length of time. The crappiest laptop on the market will handle 105 degrees plus all day long. The true test will be my afternoon calls when the temperatures are high. Battery life has been about 8 to 9 hours which is far better than the prior Hotspots.
      The unit started overheating one afternoon. I can’t say I’m a bit surprised at that, but what is surprising is that it will run steadily as long as the air temp is below 98 degrees. This is a first for Hotspots as they always overheated well before the rated temperature spec. The bad news is the crappy overheat shutdown doesn’t turn off the unit before damage starts to occur, nor does it turn the unit off completely.
      Removing the battery cover seems to help air circulation and overheating some. The button lights are flickering after one overheating but the unit seems to be working fine other than this. It will be interesting to see what happens when it really gets hot here.
      According to the specs 4G LTE takes the least amount of wattage to run so it may not overheat as fast when using 4G LTE. I had the chance to try the modem in the old school 3G EVDO mode as one of my locations is 40 feet underground and that is all that is available at this location. I shut the unit down after 30 minutes as the unit was so hot you could barely handle it even though the temperature underground is around 70 degrees. I would not recommend trying to use this for any length of time if you want the Tri-Band to not overheat!!
       
      My Opinion
      Although Sierra Wireless has made some major improvement in the 3rd generation Hotspot, this is still a unit for the casual user. It is not designed to handle heavy use or outdoor summer temperatures for any length of time. It will be going in my climate controlled cabinet to protect it from the heat next week. I will let you know how it works when the temperature stays below 85 degrees. The improvements in connectivity, reception and stability are worth the investment. As long as you know and adjust your usage for the limitations of the unit.
    • By pyroscott
      Sprint Nextel revealed their second quarter 2012 corporate earnings in a conference call to their investors today and S4GRU was covering for news on Network Vision.
      Network thinning of the iDEN network is complete, taking 1/3 of Nextel towers off air. The Nextel network was built to support 20 million subscribers, but was only supporting 4.4 million subscribers, so it could easily be thinned without [much] noticeable change in street coverage. Sprint also converted 60% of the Nextel subscriber loss into their Sprint subscriber base. Interestingly, they stated that Verizon has been the biggest poacher of subscribers leaving Nextel, grabbing 50% of former subscribers in the last 4 1/2 years. In that same timeframe, Sprint has grabbed 25%, AT&T 20% and T-Mobile 5%.
       
       
      On the Network Vision topic:
      4 additional cities will launch, including Baltimore, by the end of August.*Edit* Cities were disclosed VIA press release following the conference call. They are:
      Baltimore, MD Gainesville, GA Manhattan/Junction City, KS Sherman-Denison, TX  
      Over 2,000 sites are currently online with 12,000 sites to be online by the end of the year
      Network Vision towers are seeing 10-20% additional voice minutes usage per tower, overnight after activating Network Vision. This will equal roaming savings for Sprint, and ESMR will only increase that savings.
      CEO Dan Hesse confirmed that Sprint will be releasing the Motorola Photon Q "in the very near future." It will be a QWERTY slider "with robust business and consumer features." It will also be sporting world phone capability.
      Several hundred Network Vision sites are waiting for backhaul, and will turn on when the backhaul is installed, several hundred more sites have birds nesting on them and Sprint won't be able to turn them on until the birds leave, according to the conference call.
      Sprint sold 1.5 million iPhones during the quarter, even though other carriers saw slowing of sales with rumors ramping up that the new iPhone would support LTE. 40% of the iPhone sales were to new customers. They also stated that iPhone customers require less customer support and are expected to churn less than customers on other phones.
      Mr. Hesse confirmed that Sprint is not looking to change plans in the near future.
      Things are looking up for Sprint. This quarter saw their highest ARPU and their lowest churn rate to date. They posted a larger loss than Q1, but beat their revenue goals for Q2. For more detailed financial information, check the source link below.
       
      Source: http://investors.spr...spx?iid=4057219
      http://finance.yahoo...-141200985.html -Thanks to S4GRU sponsor marioc21 for finding this link!
    • By lilotimz
      Ericsson RRUS31 B25 + RRUS11 B26
      These are the newest and greatest remote radio units to come from Ericsson. 

      The new Ericsson RRUS31  B25 should be fairly distinctive compared to the earlier RRUS11s and now the RRUS12s being deployed by ATT and Verizon. One of these new RRUS31s can do the job of two earlier RRUS11s thus reducing deployment costs for Sprint and complexity in deploying new sites and making it easier for users to spot as there are now 4 jumpers coming out of one RRUS31 rather than two from each RRUS11 that Ericsson originally deployed. 

      All future deployments will be utilizing the new Ericsson RRUS31s. In addition Ericsson are sending crews to their original deployments and swapping out older RRUS11s for these new RRUS31s due to the aforementioned fact that one RRUS31 can do the job of 2 RRUS11s. Weight savings will be significant at sites where there are 4 or 5 RRUS11 B25s that can be replaced by one or 2 RRUS31s. The Ericsson RRUS31 deployment project is known as the 65 Mhz Project. 

       

      Ericsson RRUS11 B26 top and RRUS31 B25 bottom

       

       
      Ericsson High Capacity / 4x4/2 MIMO Deployment
      Note the additional antenna + PCS radio.
      Previously Ericsson utilized additional PCS radios and used RF combiners for high capacity setups where they utilized three or more PCS radios. This new setup will utilize a completey new antenna + radio set just like Samsung and run 4x2 MIMO on the LTE antenna / radio set. 
       

       

       

       
      Ericsson RRUS11 B25 [EOL'd] and B26
      A standard Ericsson Network Vision 1.0 site with 3 RRUS11s where two are dedicated to PCS and one to SMR.  

      This type of setup is no longer deployed or utilized in new sites. Existing sites will be slowly converted to newer RRUS31 B25 via the Sprint 65 mhz project. 


       
      Ericsson NV high capacity site [EOL'd]
      3 or 4 PCS RRUs are present for a total of 4 or 5 RRUS11s per antenna. 


       

       

       
      Close up of Antennas
       

       
      Ericsson cabinets 
      (center)



      All credit to those who took the photographs. They know who they are!
       
    • By danlodish345
      Hey guys I found another newsletter about Sprint and Cox. I'll be posting the article here.
      http://www.kansascity.com/news/business/technology/article195339874.html
  • Posts

    • I'm saying that, given that LTE can do so already, doing so with 5G should be a cakewalk.
    • So what your saying is that 5G technology can replace some of this at a reasonable price?
    • Chocolate Cake

      Sent from my SM-N920P using Tapatalk

    • Satellite is less outdated than you think. ViaSat has 100 Mbps plans, albeit with a 150 GB soft cap. 50 Mbps is available for a relatively reasonable price, depending on area. Of course, there's still the speed-of-light problem. With that said, 25/3 with a 160GB cap, particularly if it's a soft cap, for like $60/mo,, would be straightforward to sling via 2.5 GHz 5G, and if advertised at all would give Sprint probablh 80% market share in anywhere that can't get cable or fiber. The number of places that can hit those speeds over DSL that can't get cable or fiber is low enough that you don't really have to worry about those folks (basically only rural telephone companies/co-ops do that).
    • Guess I'll be going back to Pixel-land for my next phone: https://www.bloomberg.com/news/articles/2018-05-24/andy-rubin-s-phone-maker-essential-is-said-to-consider-sale
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