The Anttron AM340LTE is a central-installation multiband amplifier designed for the distribution of digital and analogue television signals in apartment blocks and commercial buildings. It accepts three separate inputs — BI+FM, Band III (DAB), and UHF — and combines them into a single output with independently adjustable attenuation (0–18 dB) per input, allowing installers to balance signal levels from different sources.

The amplifier is built around GaAs-MMIC transistor technology, which delivers high linearity and efficiency from a compact aluminium die-cast chassis. A built-in 5G LTE filter on the UHF input suppresses mobile interference without requiring an external filter. A test output (−30 dB) and front-mounted attenuators simplify commissioning and fine-tuning. The UHF input also carries a 12V/200mA remote power supply for a mast-head preamplifier.

Key Features

• 3 inputs: BI+FM, Band III (DAB), UHF
• 1 output with test output at −30 dB
• Built-in 5G LTE filter on UHF input
• GaAs-MMIC transistor technology for high linearity
• Aluminium die-cast chassis
• Attenuation range per input: 0–18 dB
• Remote power supply for preamplifier: 12V / 200mA (UHF input only, selectable)
• Mains voltage: 230Vac (−10%, +15%)

Product Benefits

• Three independent inputs let installers combine aerial, DAB, and FM sources into a single cable run
• Per-input attenuation (0–18 dB) balances unequal signal levels without external pads
• GaAs-MMIC technology gives high output levels and low noise in a small enclosure
• Built-in LTE filter eliminates 5G interference on the UHF path without an additional accessory
• Test output at −30 dB allows signal-level monitoring without interrupting the main distribution
• Remote 12V power on the UHF input drives a mast-head preamplifier from the same coaxial cable

Technical Specifications

• Number of Inputs: 3
• Number of Outputs: 1
• Test Output: −30 dB
• Gain BI+FM Input: 24 dB
• Gain Band III (DAB) Input: 33 dB
• Gain UHF Input: 40 dB
• Attenuation Range (each input): 0–18 dB
• Noise Figure: < 7 dB
• Max. Output Level (DIN45004B): 120 dBµV
• Remote Power Supply for Preamplifier: 12V / 200mA selectable (UHF input only)
• Mains Voltage: 230Vac (−10%, +15%)
• Power Consumption: 6 W
• Chassis: Aluminium die-cast
• Transistor Technology: GaAs-MMIC
• In the Box: AM340LTE amplifier, instruction manual

Why You'll Love It

• All three signal bands — aerial UHF, DAB, and FM — are combined in one box, reducing installation hardware
• The built-in LTE filter means one less component to source and install for 5G-compliant distributions
• Front-panel attenuators make level adjustment quick without opening the enclosure
• Low 6W power consumption keeps running costs minimal in always-on central distribution systems