Lectrosonics ALP700A User Manual
Alp700a, Lpda antenna, Technical data
ALP700A
LPDA Antenna
Feature Highlights
• SWR below 2.5:1 from 500 to 800 MHz
• 50 Ohm BNC connector
• 3/8” x 16 threaded stainless steel
mounting stud included
• Rods easily replaceable
• Repair kit available
• Optional mounting adapter kit
TECHNICAL DATA
The ALP700A antenna is an LPDA (Log Periodic Dipole
Array) design that provides a useful directional pattern
over a broad frequency bandwidth. Most “gain antennas”
(those designs with a directional pattern) are limited in
bandwidth. This makes them awkward for use in multi-
channel wireless systems and with frequency agile
wireless systems.
The broad bandwidth of the ALP700A covers the entire
UHF band used for Lectrosonics wireless microphone and
IFB systems, yet still provides the directional pattern
needed to cover long distances.
The antenna is constructed of machined aluminum fin-
ished in electrostatic powder coat for lasting ruggedness.
Elements (rods) are user replaceable with simple tools.
The antenna is supplied with a stainless mounting stud
that adapts it to an optional adapter kit. The adapter kit
provides a variety of mounting options.
Typical Vertical Pattern
Typical Horizontal Pattern
UP
10
5
0
-5
-10
-15
-20
-25
0
o
30
60
90
o
120
150
180
o
210
240
270
o
300
330
10
5
0
-5
-10
-15
-20
-25
0
o
30
60
90
o
120
150
180
o
210
240
270
o
300
330