Abus AZWG10020 Installation And Operating Instructions Manual page 65

When you test the signal strength, you need to keep your mobile
phone at the exact spot where the antenna is to be mounted.
If you have a location with good signal strength, then the central
axis of the device antenna must be placed exactly where the antenna of the
phone is located. Do not deviate more than 20 mm from this location. The
wavelength of the GSM signal is so short that even a change in position of
80 mm can change the signal strength significantly. This does not happen
with a strong signal. But with a weak signal, it is possible that the device will
not be able to register.
2. If your mobile phone is not on the same network as the SIM card you want
to install in the device, then insert the SIM card into your mobile phone. This
requires that your mobile phone not be locked to the SIM card you normally
use. Now test the signal strength as described in point 1.
Note:
Once you have completed testing, remember to shut down your phone in the
recommended manner before removing the SIM card. If you shut off the
power abruptly (by immediately removing the battery from the phone, for
example), the SIM card cannot unregister properly from the network. Some
networks then block the SIM card for several hours.
3. Use the device.
The SIM card should not be secured with a PIN. Turn off this
security feature from a mobile phone. The SIM card must be able
to register on the cellular network without entry of a PIN. It is not
possible to enter a PIN on the device.
Make sure that the SIM card has been activated properly. Refer to the in-
structions you received when you bought your SIM card.
Insert the SIM card temporarily and connect the antenna. Power the device
with voltage corresponding to the technical data.
When testing the signal strength, check whether the device is also registered
on the desired cellular network. If the SIM card is not activated, the signal
strength of the most dominant network in the location is displayed. This may
not be the home network of the SIM card. If the home network is not availa-
ble, the SIM card can also connect to other cellular networks to place emer-
gency calls (112, 911), for example. It then displays the signal strength of
this cellular network.
For details on testing, see the "Test functions" section.
Recommendations for action in case of poor signal strength
If the signal strength is not good enough:
Look for a better position for the antenna
Switch to a different cellular network / to a different cellular provider
Telephone connection
10 UK