Fragen und Antworten

Fragen und Antworten

Hier gibt es eine Liste häufig gestellter Fragen.

Warum haben manche Länder mehr als eine Option auf der Webseite? Warum haben manche Netzbetreiber mehr als eine Option?

Es gibt viele Netze in verschiedenen Ländern und es werden unterschiedliche Mobilfunk-Technologien in einem Netz genutzt. Die Website erlaubt es diese in Detail einzusehen. Die Betreiber werden nach dem Lände Code (MCC) und Netzwerkcode (MNC) ausgesucht. Der MCC Code wurde von der "Telecommunications Union" festgelegt, während der MNC Code von jedem Land selbst festgelegt wird.

The tower location is way off/in the middle of the water/on top of a remote mountain

Tower locations are based purely on calculations. The reason that towers will show up over water is due to the fact that water usually doesn't contain any object that can block signals. So, to the algorithm, sitting in a building right beside a cell phone tower will appear to be the same as being 5 km away with direct line of sight. Hence, it will calculate an average of the two spots and display a marker there. The most ideal terrain to calculate a towers is a completely flat ground with tower spaced wide apart. That being said, even that will not guarantee the location is correct if the measurements provided by the phone were not correct. For a tower to be calculated properly, you will need to travel around the tower in at least 1/2 to 3/4 of a circle near the actual location in order to determine the exact location. Currently, LTE is the most accurately mapped technology due to using RSRP instead of RSSI.

A single cell is stretching for 5/10/15 km or more!

Unfortunately, not much can be done about this. Most phones will report the same Cell ID when a call is in progress. Likewise, some phones will get "stuck" to reporting a single cell id for a certain length of time. Another possibility is that the GPS device is incorrectly reporting the position; and as a result the location may keep changing wildly before it settles down to the right location.
While the app and site try to filter this bad data, there is not much that can be done to fix it. As more data is gathered, these errors will slowly decrease until the map becomes more and more accurate.

Warum wird die Uplink/Downlink Frequenz nicht angezeigt wenn ich Daten aufzeichne?

Die Frequenz kann nur mit einem BlackBerry Gerät aufgezeichnet werden. Manche Windows Mobile Geräte (Quallcomm HTC Geräte) und alle Windows 10 Mobile Geräte unterstüzten dies. Bei Android werden manche Motorola MotoBlur Handys unterstützt, genauso wie die meisten Android 7.0+ Geräte

How long does it take for my data to appear?

It may take anywhere from a few minutes to a few days, and up to a week, for data to be generated.

What are "low accuracy" towers?

Low accuracy towers are towers whose location cannot be accurately predicted given the uploaded data. Therefore, they revert to a more simple algorithm of placing the tower closest to the location of the best signal strength. This will usually be significantly less accurate than the triangulation method normally used. Some towers that only have 1 or two cells, such as omnidirectional towers, will always be low accuracy. Likewise, any towers which were detected with weaker signals will also be low accuracy until stronger signal samples are uploaded.

What is "Estimated Frequency"?

Some networks have a known sector number to frequency band mapping. If it is known, it will be displayed on the site. If you know the mapping for a certain provider, please let us know so that we can include it.

What is "Android 4.2 CellID Support"? Why does it work on my devices?

In Android 4.2, the CellID API was re-written to ensure data is updated somewhat atomically to avoid bad data. Unforunately, some manufacturers, notably Samsung, have chosen not to implement this new API. You can see a list of known supported and unsupported devices on this page: Android_4.2_CellID_Support or Tested Phones

When i have "Android 4.2 Cell ID API enabled, screen won't turn off?

When you record CDMA network or have "keep screen turn on" feature, screen won't turn off.

Unterstützt CellMapper Handy mit 2 Simkarten?

Yes, Cellmapper unterstützt manchen Dual-SIM Geräte. Schaue auf die Tested_Phones für mehr Informationen

Warum gibt es keine App für iOS

Apple erlaubt es Apps nicht die Netzwerk Info API zu nutzen.

Könnt ihr das Feature X zur App oder zur Website hinzufügen?

Ja, bitte füge es für die App oder die Website zum Issue Tracker hinzu oder schreib uns eine E-Mail.

Why does my wiki/site user not work on all parts of the site?

Since we use different applications for different parts of the site, you will need to register separately for the wiki and website.

Warum kann ich mich nicht für das Wiki registrieren? =

Leider, wegen viel Spam, muss für die Erlaubnis bei uns angefragt werden.

Gibt es eine Anleitung?

Ja, schaue auf die diese Seite für die gesamte Anleitung.

Welche Handys sind am Besten für CellMapper geeignet?

Normalerweise sind Qualcomm-Geräte am Besten geeignet. Für Details schau auf die Tested_Phones Seite