MTX-H15 UMTS-HSDPA terminal modem

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7.3.5 Possible communications disturbances

Possible communication disturbances include the following:

Noise can be caused by electronic devices and radio transmitters.

Path-lossoccurs as the strength of the received signal steadily decreases in proportion to the distance from the transmitter.

Shadowing is a form of environmental attenuation of radio signals caused by hills, buildings, trees or even vehicles. This can be a particular problem inside buildings, especially if the walls are thick and reinforced.

Multi-path fading is a sudden decrease or increase in the signal strength. This is the result of interference caused when direct and reflected signals reach the antenna simultaneously. Surfaces such as buildings, streets, vehicles, etc., can reflect signals.

Hand-overoccurs as you move from one cell to another in the GSM network. Your mobile application call is transferred from one cell to the next. Hand-over can briefly interfere with communication and may cause a delay, or at worst, a disruption.

MTX-H15 User Manual V.2.0Pag. 25 Preliminary. Subject to change without prior notice

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Siemens MTX-H15 user manual Possible communications disturbances