Tipa

Alcad AM387 is a three-input mast amplifier in a new improved design, increased resistance to weather conditions and increased resistance to oscillation. AM387 has a suppressed LTE700 band (it has a built-in 5G filter and amplifies UHF only up to 694MHz). The amplifier is suitable for installation in indoor and outdoor environments. Individual inputs have separate gain control with a resistor trimmer, the amplifier's +12V power supply is implemented remotely via a coaxial cable via the amplifier output, the original power supplies are AL-105 or AL-205, which include a power crossover and have an integrated broadband splitter. The amplifier is manufactured using SMT technology and is housed in a Zamac die-cast housing, the plastic housing provides increased protection against weather conditions, the plastic housing of the amplifier is suitable for both pole mounting (using the supplied bracket) and wall mounting, the inputs and outputs are F-connectors, and the UHF input can be switched on with a power switch for the +12V/50 mA preamplifier.

Technical parameters:

- number of inputs/outputs: 3 / 1
- amplifier input: 1 x FM (88-108 MHz)
- amplifier input: 1 x DAB/BIII (160-260 MHz)
- amplifier input: 1 x UHF (470-694 MHz)
- gain in FM/DAB/BIII bands: 20 dB
- gain in UHF band: 34 dB
- ripple in FM/DAB/BIII bands: ±1 dB
- ripple in UHF band: ±2 dB
- gain control in FM/DAB/BIII bands: -20 dB
- gain control in UHF band: -16 dB
- noise figure in FM/DAB bands: 5 dB
- noise figure in UHF band: 3.5 dB
- max. output level (DIN45004B): 108 dBµV
- max. output level (IMD3 -66 dB): 105 dBµV
- max. output level (IMD2 -60 dB): 93 dBµV
- rejection between inputs: >30 dB
- reflection attenuation at input: >10 dB
- preamplifier power supply for UHF input: 12V/50 mA (switchable)
- power supply from external source (AL-105 or AL-205): +12V/45 mA
- connectors: 4 x F female connector
- operating temperature: -10°C - +65°C
- protection level: IP 53
- weight: 0.25 kg
- packaging dimensions: 110 x 125 x 45 mm