Telex ALP-450 UHF LOG Periodic Antenna (450 - 900 MHz)

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Description

The ALP-450 is a broadband directional log periodic antenna. It will receive any frequency from 450 to 900 MHz. The “gain” of this antenna enables it to receive signals from a greater distance than a typical “whip” type antenna.Log Periodic Antennas are also directional (like a TV antenna) and will have the best reception when pointed at the transmitter. This yields the benefit of less interference from unwanted signals coming from the back or side of the antenna. Read more

Features

Antenna Placement : The ALP-450 should be placed in a position that has a clear view of the transmitter(s) for best results. Obstructions such as walls, ceilings, and metal objects will reduce range and performance.
Antenna Mounting : The ALP-450 is supplied with a variety of mounting hardware. It should always be mounted vertically with the arrows pointing toward the transmitter(s).
Microphone Stand Adaptor : Attach the microphone stand adaptor using the screws and spacers supplied with it.
Angle Bracket : Attach the angle bracket using the nuts, lockwashers, and screws supplied with it. Self tapping screws are supplied for securing the bracket to wood, metal, or other surfaces.
Clamps : Clamps are provided for mounting the ALP-450 on pipes, scaffolds, tree limbs, etc.. Attach the clamps with the hardware supplied.

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Features

Antenna Placement : The ALP-450 should be placed in a position that has a clear view of the transmitter(s) for best results. Obstructions such as walls, ceilings, and metal objects will reduce range and performance.
Antenna Mounting : The ALP-450 is supplied with a variety of mounting hardware. It should always be mounted vertically with the arrows pointing toward the transmitter(s).
Microphone Stand Adaptor : Attach the microphone stand adaptor using the screws and spacers supplied with it.
Angle Bracket : Attach the angle bracket using the nuts, lockwashers, and screws supplied with it. Self tapping screws are supplied for securing the bracket to wood, metal, or other surfaces.
Clamps : Clamps are provided for mounting the ALP-450 on pipes, scaffolds, tree limbs, etc.. Attach the clamps with the hardware supplied.

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About the Telex ALP-450 UHF LOG Periodic Antenna (450 - 900 MHz)

The Telex ALP-450 is a professional-grade log-periodic directional antenna engineered for robust performance across the entire UHF spectrum from 450 to 900 MHz. This frequency range encompasses the critical bands used by wireless microphone, in-ear monitoring, two-way communication, and broadcast systems. The log-periodic design provides consistent gain, a well-defined directional pattern, and a low voltage standing wave ratio (VSWR) across its entire operating bandwidth, making it a highly versatile tool for system designers who need reliable, long-range reception or transmission in challenging RF environments. Its directional characteristics allow it to be precisely aimed at a signal source, maximizing wanted signal pickup while rejecting interference from other directions.

Constructed for durability in both temporary and permanent installations, the antenna features a rugged housing that protects its internal elements from environmental factors. It is equipped with an integrated low-noise preamplifier, which is essential for overcoming signal loss in long cable runs between the antenna and the receiver. This active design ensures a strong, clean signal is delivered to the receiving equipment, which is crucial for maintaining audio integrity and system stability, especially in large venues like stadiums, concert halls, or expansive outdoor festival sites. The amplifier typically includes adjustable gain control, allowing technicians to optimize the signal level and avoid overdriving the receiver's front end.

The ALP-450 is commonly deployed in pairs as part of a true diversity receiving system, with each antenna strategically positioned and aimed to cover different sections of a stage or performance area to combat signal nulls caused by multipath interference. Its ability to cover such a wide frequency range with high efficiency makes it an excellent choice for touring companies and fixed installers who manage multiple wireless systems on different frequencies. By providing extended range, improved signal-to-noise ratio, and superior interference rejection, this antenna is a critical component in building reliable, high-performance wireless audio infrastructure.

Key Features

Antenna Placement : The ALP-450 should be placed in a position that has a clear view of the transmitter(s) for best results. Obstructions such as walls, ceilings, and metal objects will reduce range and performance.
Antenna Mounting : The ALP-450 is supplied with a variety of mounting hardware. It should always be mounted vertically with the arrows pointing toward the transmitter(s).
Microphone Stand Adaptor : Attach the microphone stand adaptor using the screws and spacers supplied with it.
Angle Bracket : Attach the angle bracket using the nuts, lockwashers, and screws supplied with it. Self tapping screws are supplied for securing the bracket to wood, metal, or other surfaces.
Clamps : Clamps are provided for mounting the ALP-450 on pipes, scaffolds, tree limbs, etc.. Attach the clamps with the hardware supplied.

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