User's Manual

4. HINTS FOR INTEGRATING THE MODEM

LZT 123 7361 R1A

• Noise can be caused by electronic devices and radio transmitters.

• Path-loss occurs 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-over occurs 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.

4.4 Accessories

The GM29 has been type approved together with a range of accessories

including:

1. AC-DC Power Adaptor with customised d.c. lead

(Model # AD-0901000BS)

Input: 230Va.c., 50Hz, 2m mains lead (UK and Euro plug options)

Output: 9Vd.c., 1A. 2m d.c. lead with RJ11 connector. CE marked.

2. Dual Band Minimag Antenna (900/1800MHz)

(Model # 1140.26-FME/F)

Magnetic-mount antenna, 0dB radiator, 2.6m RG174 cable with

FME female connector.

3. Dual Band Antenna (900/1800MHz)

(Model # EHD1890-FME/F)

Bulkhead-mount antenna, 0dB radiator, 0.8m low loss cable with

FME female connector.

4. RS232 9-way Serial Cable

(Model # C-E-RS232-2M)

2m, 9-way cable, DB9 (female) to DB9 (male) connectors.

Please contact Sony Ericsson distribution channels for availability.