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mattnew

S4GRU Member
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Posts posted by mattnew

  1. Sim cards = cheap; unlocked phone that can connect using the latest technologies off contract would be ~$500 probably on the low end, I honestly haven't checked. Thats where my "expensive" assumptions came from.

     

     

    I'm an engineer, but when it comes to cell service I'm not even going to pretend I can talk intelligently on this subject. Basically its as you said.. I knew the hardware for the most part was there in some phones to act as a spectrum analyzer that would be functional in the ranges that I'd need, I was wondering what was missing or what the significant hurdle was to pulling that information out of the phones... which is the SIM card. I had suspected this was likely the case.

     

    Thanks for the information.

  2. Hi All, 1st time post.

     

    I'm a verizon person, switched from sprint to verizon about 9 years ago... and I'm thinking about coming back to sprint.

     

    I've been pouring over sites like rootmetrics and sensorly to compare the coverage in my area ( haverhill, ma , and southern NH ) and the one thing I keep coming back to is that it would be great if I could go out and see for myself what the signal strength of various networks was where I lived/worked/etc.

     

    For example...the iphone regardless of carrier seems to have the same build, so that means sprints iphone should have GSM/HSPA+ antennas in it... is there a way to check on a sprint iphone what AT&T's signal strength in a particular area was? or verizon's signal strength? or T-mobile's?

     

    I know zilch about cell signal encryption or if its even possible to tell from the signal which network the originator is from without one of their SIM cards, but I'm wondering if there is any information here that could be teased out without having multiple phones on you. I'm wondering if even a simple app could be written that just gives you a decibel measurement of what each antenna is receiving....

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