CellHunter legend

Alex (Maxious) Sadleir maxious at gmail.com
Mon Nov 23 06:02:36 CET 2009

On Mon, Nov 23, 2009 at 3:45 PM, Walery Strauch <walery at online.de> wrote:
> Alex (Maxious) Sadleir wrote:
>> On Sun, Nov 22, 2009 at 12:39 PM, Walery Strauch <walery at online.de> wrote:
>> ). In cellhunter, signal strength is defined as "(rxlevel / 2) +2"
> Where did you find this? In code of cellhunter? Where can I get the
> code?
>> where rxlevel is Recieved Field Level as a percentage. So 25 would be
>> almost half strength? I'm getting values between 12 and 18 so that's
>> not very good but my phone service isn't always stable.
> Is strength a linear function, or some quadratic, logarithmic, ...?
Recieved Field Level is measured in decibels (range of 000 to 127 dBm)
so the strength should be logarithmic.
>>> What is the maximum?
>> 52? You would have to be very close to get that, I'm sure.
>>> How to find out which cell is on house of my neighbor?
>> There are some tools for accessing the Cellhunter database at the
>> bottom of the website - http://ch.omoco.de/cellhunter/
>> I think you would have to download the CSV GPS and plot/filter the
>> points to find which cell covers which house.
> I know this tool... But cell I was searching is not there, so I try it
> by my self.
>>> Has cell on one house only one MNC, or are there splits for the provider?
>> Each SIM card can only pick up one MNC/network but one house may be
>> covered by several networks/MNC.
> Are there possibilities to find out how much provider are on one house?
OpenBmap have a map for their database:
> Very very THANKS!
> Walrey ;o)
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