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SNYPER-LTE Graphyte
User Manual
Survey Menu
The SNYPER-LTE Graphyte has 3 operational modes for performing surveys.
»Single Survey: A single, complete survey of the cellular environment as seen
by the SNYPER-LTE Graphyte. The survey result is available as a .csv le, with a
.htm summary le.
»Multiple Cycle Survey: In Multiple Cycle Survey, the user can conduct a
survey over many cycles (user dened up to 500). These surveys can either run
consecutively with each other, or after a user selectable time interval of up to 24
hours. The Graphyte will show the average of all the surveys carried out. Like
Single Scan survey, .HTM and .CSV les will be created. In Multiple Cycle Survey
there will be two .CSV les created. One with the averaged summary data, and
one containing all the data from all the surveys that were conducted.
Multiple cycle survey is a signicant feature of the SNYPER-LTE Graphyte.
Received signal strength of cellular networks is not a constant. They vary in
even short spaces of time. Therefore, carrying out a multiple cycle survey in an
area gives a much better view of best signal strength for a specic network. It is
recommended that users carry out a 5-cycle survey as a minimum to get a good
view of signal strength available in any given location.
NOTE: The Graphyte can only record a maximum of 255 cells (combined total of 2G, 3G
and 4G). This will never be a problem when the Graphyte is not moving. If, however, the
Graphyte is doing a multi-cycle log on a moving vehicle, then the maximum of 255 could
be a limitation dependant on vehicle speed and number of measurement cycles. Please
also remember that a survey is not instant – the Graphyte will be retuning its radios to
listen to all the different frequencies that it supports (many hundreds!) as it conducts a
survey, and this is the reason why a survey will take several minutes to complete. So a
survey where the Graphyte is moving does not represent a survey of all frequencies at
a single point on the ground, but survey along the movement path between when the
individual survey started and when it completed.
»liveSCAN: This is a continuous survey where the SNYPER-LTE Graphyte is
locked onto a user specied channel frequency. The SNYPER-LTE Graphyte
graphically shows the received signal strength of that channel on a continuously
updated rolling display until cancelled. In conjunction with the supplied directional
antenna, this allows the user to move the antenna around until the direction with
the greatest signal strength is found. In conjunction with an omni-directional
antenna, this allows the user to move around a site to identify the location of the
best signal strength of the channel locked onto. A .csv le of each survey taken
during the liveSCAN is kept for the user to analyse if required.