cellphone location 2

false

a cellphone generally connects to the geographically closest cell site

true

a cell site may contain multiple sectors, each serving a different general direction or coverage area

true

the azimuth of a sector represents the direction in which the center of the antenna’s coverage pattern is oriented

false

a sector azimuth identifies the precise direction from the cell site to the cellphone

true

terrain, buildings, antenna configuration, network congestion, and radio conditions can affect which cell site serves a cellphone

false

a cellphone can connect only to a cell site located in the same municipality as the device

true

call detail records may include the date, time, duration, telephone numbers, and serving cell-site information associated with a communication

false

every carrier uses identical fields, terminology, and formatting in its call detail records

true

the cell site listed for a communication usually identified network activity associated with that event, not the cellphone’s exact geographic coordinates

false

a single historical cell-site record is normally sufficient to identify the exact location of a cellphone

true

round-trip time, timing advance, and similar measurements may provide information about the approximate distance between a cellphone and a cell sitef

false

a distance measurement from one cell site, standing alone, normally establishes one unique location for the cellphone

false

cell-sector coverage areas always have perfectly straight boundaries and never overlap

true

network load balancing may cause a cellphone to connect to a cell site or sector other than the one an analyst might expect based solely on distnace

false

GPS location data and historical cell-site information are produced by the same technology and provide the same level of precision

true

a cellphone may generate network recrods even when the user is not actively making a voice call or sending a text message

false

the absence of a call detail record proves that the cellphone was turned off at that time

true

carrier records should be evaluated using the carrier’s documentation, legends, time-zone information, and record-retention practicies

true

daylight-saving time adjustments can affect the interpretation of timestamps in cellphone records

true

a reliable historical cell-site analysis should clearly explain its assumptions, limitations, supporting records, and alternative interpretations