D2366 GSM Radio Signal Analyser – Operation Manual – D2366-OPS2/EU/F10/v4 -
16
It reduces battery usage to a minimum.
Press any button to return to the previous screen.
Aerial Siting
ALWAYS
do a site survey to find the point of best signal before installation.
The aerial should be mounted vertically at the point of best signal. This is usually the highest
point in the building (often the loft area). For security applications, the position chosen should be
inside the protected area.
Large metal structures can affect radio signals. Therefore, whenever possible, avoid installing
the aerial directly under sheet metal roofs or within sheet metal covered buildings because this
will reduce the signal strength. If this is unavoidable, the strongest signal will be found away from
the metal roof or close to large external windows or skylights.
Many large buildings closely spaced together will reduce the signal strength, particularly for
aerials on the lower floors, e.g. ground floor installation in city centres. The strongest signal will
normally be found close to external windows or skylights as high as possible.
Wherever possible, do not install the aerial close (2 metres) to sources of interfering signals.
These include: fluorescent or neon lighting, power distribution panels, power cable runs, fridges,
freezers, air-conditioning and ventilation equipment as well as electronic equipment, e.g.
photocopiers, fax machines, computers, televisions...
Reliable radio operation is unlikely with low signal strength, with an incorrectly installed aerial or
with strong interfering signals.
Use the test set to find the point of best signal. This means:
-
Maximise the SIG (high signal strength received from a base station);
-
Minimise the BER (none or low level of interfering signals).
The supplied short black aerial is for hand-held use, i.e. site surveys.
OR
Use an aerial adapter to connect and test a remote aerial.
Remember
: It is
always
easier to find the point of best signal before the equipment is fitted on
the wall. Moving aerials, cables, trunking... after installation is wasted time and effort.
