Teldat RS1800 Series Installation Manual page 21

3 Components and Power Supply
To assemble or dismantle the antennas, simply screw or unscrew them into or out of the connectors labeled Cell
(located on the rear and side panels of the router).
Installing these antennas in the RS1800 series is essential to improve the quality of the signal received and transmit-
ted 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. The RS1800 series router family incorporates several WWAN connectors for this.
WWAN Main and Aux 1 antennas
Fig. 13:
WWAN Aux 2 and Aux 3 antennas (future use)
Fig. 14:
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 must be 7 cm. The maximum recommended distance between them is 25
cm.
To achieve optimum performance, the radio frequency accessories installed (antennas and cables) should be those
recommended by Teldat.
Teldat offers a range of suitable accessories (90º mount antennas, antennas for outdoor installation, antennas for
ceiling installation, extension cables, etc.) for 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 impact device performance.
Antennas transmit and receive radio signals. Environmental factors (such as the distance between the device and
the base station), physical obstacles and other RF interferences can impact their performance.
For optimum 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 facing the nearest base sta-
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Teldat S.A.
RS1800 series