Telex UAD4 - Manual (Page 4)

Antenna Requirements
The UAD4 may be used with a variety of anten-
nas. For best results, use a pair of ALP-450 di-
rectional log periodic antennas. See Figure 4.
The ALP-450 offers the best performance and
broadest bandwidth available.
Antenna Placement
If antennas are mounted directly to the UAD4,
they should be configured as shown in Figure 5.
Good results may be obtained with optional
CLA or FA-500 1/2 wave antennas.
The 1/4-wave antennas that are supplied with
the Telex wireless systems will provide adequate
performance in some situations. The 1/4-wave
antennas should be oriented as shown in Figure
5. Do not use 1/4-wave antennas for remote
mounting.
Do not rack mount the UAD4 in this configu-
ration. Serious loss of range and performance
may occur.
Place the UAD4 with antennas in a location that
is in direct view of the transmitters for best re-
sults.
-4-
ALP-450
THIS END TOWARD TRANSMITTER
Telex
R
ALP-450
CLA
1/2 Wave Antenna
INPUT A
OUTPUT A
1 2 3 4
OUTPUT B
1 2 3 4 INPUT B
POWER
90-260 VAC 50-60 Hz
POWER OUT
1 2 3 4
15 VDC
Figure 5
1/2 Wave Antenna Mounting
Figure 4
Antennas
FA-500
1/2 Wave Antenna