Antenna solutions and recommendations on antenna mounting for the

AN 1106 v3.0 | 5/12
Antenna solutions and recommendations on antenna mounting
SpeechLine Digital Wireless - SL Rack Receiver DW
Remote antenna distances and line of sight
If you are using multiple antenna wall mounts (AWM 2/AWM 4) in one room or if individual installa-
tion and mounting of the antennas is desired, please observe the following aspects:
f Position all antennas as close as possible to each other.
f Make sure that the distances between all antennas are all equal and the same as on the back of
the receiver or on the AWM 2 antenna wall mount.
f If possible, group the antennas as follows:
• All A antennas from the receivers’ ANT I sockets in one group according to the aforementi-
oned requirements
• All B antennas from the receivers’ ANT II sockets in one group according to the aforementi-
oned requirements
Ant II Ant I
B
B
B
B
B
B
A
A
A
A
A
A
B B B
B B B
A A A
A A A
All antennas B from Ant II sockets
of all SL Rack Receiver DW units
All antennas A from Ant I sockets
of all SL Rack Receiver DW units
min. 17 cm (7")
minimum 7.5 cm (3")
recommended 17 cm (7")
≤ 1 m (39")
Distance to reflecting surface / obstacle:
min. 7.5 cm (3"), recommended 17 cm (7")
≤ 1 m (39")
f When using multiple AWM 2/AWM 4 antenna wall mounts, make sure that the distances bet-
ween all antennas are equal:
f If possible, position the antennas so that there is a direct line of sight (without obstacles) bet-
ween the transmitters and the antennas.