Antenna amplifier ALCAD AM387, for mast, 1xFM G20dB, 1xDAB G20dB, 1xUHF G34dB, filter 5G, U108dBµV

Alcad AM387 is a three-input mast amplifier in a new improved design, increased resistance to weathering and increased resistance to vibration. The 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 indoor and outdoor installation. The individual inputs have a separate gain control by a resistor trimmer, the + 12V amplifier is powered remotely via a coaxial cable via the amplifier output, the original power supplies are AL-105 or AL-205, which include a power switch and have an integrated broadband splitter. The amplifier is manufactured by SMT technology and is located in Zamac casting, the plastic cover guarantees increased protection against weather conditions, the plastic cover of the amplifier is adapted for mounting on a mast (using the supplied bracket) and on the wall, inputs and outputs are on F-connectors, for UHF input it can be switched on by power supply for preamplifiers +12V/50 mA.


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 the UHF band: 34 dB
- ripple in the FM / DAB / BIII bands: ± 1 dB
- ripple in the UHF band: ± 2 dB
- gain control in FM / DAB / BIII bands: -20 dB
- gain control in the UHF band: -16 dB
- noise figure in FM / DAB bands: 5 dB
- noise figure in the 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
- suppression between inputs: >30 dB
- input reflection attenuation: >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 connector female F
- working temperature: -10 ° C ..... + 65 ° C
- degree of protection: IP 53
- weight: 0.25 kg
- package size: 110 x 125 x 45 mm