Wwan Antenna Connection (Cell Connector) - Teldat iM8 Installation Manual

Teldat S.A.
WAN ports
Fig. 20:
Note
During booting and in BIOS mode, the WAN connectors are not operative.

3.7.3 WWAN Antenna Connection (Cell connector)

The Teldat-iM8 has two connectors for 3G antennas. To assemble and disassemble the antennas, simply screw
them into the connectors labeled Cell (located on the right panel of the router).
Installing these antennas in the Teldat-iM8 is essential to improve the quality of the signal received and transmitted
by the cellular model.
Note
To achieve high-quality performance, the router should always have the WWAN antennas installed.
For the cellular interface to work, the router needs the corresponding software license.
Some cellular telephony technologies use the antenna diversity technique to improve the quality of the signal re-
ceived (HSUPA, CDMA EV-DO, etc.). The Teldat-iM8 router family incorporates several WWAN connectors for this.
WWAN Main and Aux 1 antenna
Fig. 21:
When the Main and Aux 1 antennas are not directly connected to the router but installed through extension cords,
the minimum distance between the two of them must be 7 cm. The maximum recommended distance is 25 cm.
To achieve optimum performance, the radio frequency accessories installed (antennas and cables) should be those
recommended by Teldat.
Teldat has a series of accessories (90º mount antennas, antennas for exterior installation, antennas for ceiling install-
ation, extension cables, etc) for installation in different locations.
3.7.3.1 Placing the Antenna
The orientation of the antenna and its location with respect to other wireless devices and radiation sources (such as
communication devices, personal computers, etc.) can influence the performance of the device.
Antennas transmit and receive radio signals. This performance is also affected by environmental factors (such as the
distance between the device and the base station), physical obstacles and other interferences due to radiofrequen-
cies (RF).
To receive better coverage, follow these steps:
• Whenever possible, place the antenna where there are no physical obstacles. Obstacles between the antenna and
the base station degrade the wireless signal. Place the antenna above ground level and steer it towards the
nearest base station.
• Density of materials also affects antennas. Place them away from all types of walls, metal screens, mirrors, etc.
Teldat Router iM8
3 Components and Power Supply
17