• ALP650 log periodic dipole array antenna, angled front view showing black trapezoidal grid element, round onboard amplifier housing and mounting bracket at base, Lectrosonics
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Lectrosonics Onboard Amplifier Remote Antenna LPDA With Onboard Amp | 470.000 - 700.000 MHz

Lectrosonics Onboard Amplifier Remote Antenna LPDA With Onboard Amp | 470.000 - 700.000 MHz

SoundPro Item: 68481 | Part Number: ALP650L/E

$958.00
$1,063.00 $958.00
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MSRP: $1,063.00 | MAP: $958.00

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  • LPDA Design Delivers Directional Pattern Across Broad UHF Bandwidth For Multi-Channel Systems
  • Adjustable-Gain Onboard Amplifier Compensates For Long Cable Runs And Splitter Loss
  • Phantom Power Via Coax Eliminates Separate Power Runs To Antenna Position
  • Receive-Only Amplifier Design Protects Downstream Receivers From Transmit Interference
  • FR4 Fiberglass Construction With BNC Cover Suited For Field Production And Touring
  • Reposistionable Mounting Block Accepts Three Thread Sizes For Flexible Positioning
  • Available In Three UHF Frequency Ranges To Match Band Allocation Requirements
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The Lectrosonics ALP650 Series is designed for RF engineers, wireless technicians, and production integrators who need reliable antenna coverage across long coaxial cable runs and complex multi-channel wireless deployments. The Log Periodic Dipole Array design delivers a useful directional pattern across a broad UHF bandwidth, unlike narrowband gain antennas that become impractical in frequency-agile or multi-channel wireless setups. With VSWR below 2:1 from 450 to 862 MHz, the ALP650 covers the full range of Lectrosonics wireless microphone and IFB system frequencies while maintaining the directionality needed to reach talent at distance.

Where the ALP650 separates itself from passive antenna options is its built-in receive-only amplifier with three-position jumper-selectable gain, allowing technicians to compensate precisely for cable loss and splitter insertion loss without overdriving the receiver chain. DC power is supplied through the coaxial cable itself via a connected BIAS-T, UMC16B multicoupler, or VENUE receiver, eliminating the need for a separate power run to the antenna position. The FR4 fiberglass circuit board construction is rugged enough for field production, and a protective cover over the BNC connector adds additional durability in outdoor and touring environments.

The mounting block accepts three common thread sizes and can be repositioned horizontally or vertically to optimize pattern orientation away from reflective surfaces. This flexibility makes the ALP650 Series equally at home on a theater fly rail, a broadcast camera position, a festival RF cart, or a fixed installation rack. Three UHF frequency range variants are available to match the specific band allocation of the deployment.

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Specifications

Performance
Pattern Gain
+7dBi (isotropic); +4dBd (over dipole)
VSWR
Below 2:1 from 450 to 862 MHz
RF Gain
+12 dB with 0dB attenuator; +8 dB with 4dB attenuator; +5 dB with 7dB attenuator
Third Order Intercept
+27 dBm @ input (+41 dBm output)
Connectivity
Connector
50 Ohm BNC
Passband
Passband (ALP650L/E)
470.000 - 700.000 MHz (RoHS compliant)
Power
Power Requirements
8V to 16V DC at the input jack; auto reset poly fuse protection circuit; constant power switching supply; 8V DC (125 to 145 mA); 12V DC (83 to 106 mA); 14.4V DC (69 to 89 mA); 16V DC (60 to 80 mA)
Phantom Powering
DC voltage supplied via coaxial cable by UMC16B, VRM input jack, or BIAS-T power inserter (70 to 80 mA)
Power Consumption
1.2 Watt nominal (switching regulator)
Dimensions
Dimensions
12" high x 10.5" deep x 1.5" wide (without mounting hardware)
Weight
Weight
12 lbs

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