56050301 – Rev B
10
© 2017 Telguard
C
ONNECT
A
NTENNA AND
T
EMPORARILY
P
LACE
U
NIT
The Telguard unit is supplied with an antenna. In most cases the antenna can be mounted directly to
the unit. If necessary, the antenna may be moved to a better signal location using optional cable and
bracket accessories. The performance of the antenna may be affected by the wall or materials
contained within the wall chosen for mounting. These effects may not be clearly identified by RSSI
monitoring alone. The wall materials may have a more pronounced effect on the antenna transmit
band performance.
Do not install the Telguard in an area where the general public could reasonably be within 20cm (8
inches) of the antenna.
Note 1: Optimum RF performance can usually be found at the highest point within a building
with the fewest number of walls between the Telguard’s antenna and the outside of the
premises.
Note 2
:
To avoid interference with other electronic devices operating in the area, avoid
mounting the Telguard’s antenna near other electronic devices.
Note 3: The Telguard unit’s cellular antenna is designed for INDOOR INSTALLATIONS ONLY.
These considerations should be coupled with the best RSSI indication obtainable. Care should be
taken to ensure that a large metal object such as a refrigerator or a metal cabinet is not located on
the opposite side of the wall.
If moving the TG-4 to a different location is not practical, then you may need a cable and remote the
antenna in order to receive adequate radio signal strength. Pick a high, visually secure spot using
the guidelines below.
Tips for Improved Radio Signal Reception
The higher the antenna the better. Start in the drop ceiling above the unit and proceed up
from there, to the roof if necessary.
Remember, the antenna should be as inconspicuous as possible for greatest visual
security.
Try to keep the antenna away from sources of RF interference, including pumps,
compressors, ovens, etc., or where metal objects can shield it or otherwise block the
cellular radio RF signal.
Place the antenna perpendicular to the ground, either right side up or upside down. Do not
mount the antenna horizontally.
M
EASURE
R
ECEIVED
S
IGNAL
S
TRENGTH
(RSSI)
FOR
B
EST
A
NTENNA
P
LACEMENT
Measure the received signal strength by pressing the RSSI button. This switches the LEDs to signal
strength mode. Now, slowly move the unit or remote antenna to achieve maximum signal strength.
Pick the place where the most LEDs (up to four) are lighted.
LED Function Table – View RSSI Mode (RSSI button)
RSSI Value
Illuminated LEDs
RF (dBm)
NO SVC
LED 5 = slow flash, LED 4-2 = off
n/a
