Tipa

The Johansson Smart Amp intelligent preamplifier for DVB-T2 and DAB+ radio automatically scans and processes the incoming signal so that all output channels are aligned to the same signal level. If an identical channel is received from multiple antennas, it will be converted to the next frequency and not lost, unlike with simple combiners. It allows combining up to 4 separate antennas. The output signal is also free of unwanted interference using a 5G LTE filter. The housing with a high strength and resistance to weathering allows installation in the outdoor environment as well as indoors. The package includes a 12V power supply with two outputs for easy powering of another antenna lead. Thanks to the Plug and Play standard, there is no need to configure anything, which makes combining several antennas as easy and convenient as possible.

Product features
- combining of up to 4 antennas
- designed for DVB-T2 and radio DAB+ broadcasting
- automatic gain control of all channels to the same level (AGC)
- peak slope of filters for adjustment of adjacent channels
- automatic detection of SAW filters
- integrated 5G LTE filter
- protection against electrostatic discharges (ESD)
- power supply and mounting elements included in the package
- for indoor and outdoor use
- Plug and Play standard, nothing needs to be configured
- F connectors

Technical parameters
- number of inputs: 4
- number of outputs: 1
- active band: DAB + / VHF (BIII), UHF k. 21 - 48
- operating frequency: 174 - 862 MHz
- input level: 45 - 109 dBμV
- output level: 84 dBμV
- isolation between inputs:> 35 dB
- LTE band suppression:> 40 dB
- power supply (2437): 12V DC, 350 mA (max.)
- power supply input voltage: 230V~AC, 50 Hz
- number of power supply outputs of the source: 2 (F connector)
- preamplifier dimensions: 112 x 98 x 56 mm
- source dimensions: 120 x 115 x 50 mm

Package contents
- 1x Johansson 7474L2 preamplifier
- 1x power supply 2437
- 1x mast case
- 1x manual