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Intelligent antenna preamplifier JOHANSSON KIT 7472L2 Smart Amp
Intelligent antenna preamplifier - DVB-T2 and DAB+, combining 2 aerials, automatic levelling of output channel levels, conversion of duplicate channels to a free frequency, 5G LTE filter, power supply 12V DC (adapter included, 2× output), plug and play without configuration, durable case for outdoor and indoor mounting, compatible with standard aerial distribution systems
In stock 8 pcs
Expected shipping:
29.09.2026
Regular price
€116,08
Unit price
/
Unavailable
JOHANSSON | SKU:
14430916
Product description
The intelligent preamplifier for DVB-T2 and DAB+ radio Johansson Smart Amp automatically searches for 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 directions, it is converted to the next frequency and not lost, unlike simple combiners. It allows you to cleverly combine 2 separate antennas. The output signal is also free from unwanted interference using a 5G LTE filter. The housing with high strength and weather resistance allows for installation outdoors and indoors. The package includes a 12V power supply with two outputs for easy powering of an additional antenna lead. Thanks to the Plug and Play standard, there is no need to configure anything, just connect everything, making combining multiple antennas extremely easy and convenient.
Product features
- convenient and smart merging of 2 antennas
- designed for DVB-T2 and DAB+ radio broadcast
- automatic adjustment of all channels to the same level (AGC)
- peak filter slope for adjusting adjacent channels
- automatic detection of SAW filters
- integrated 5G LTE filter
- protection against electrostatic discharge (ESD)
- power supply and mounting hardware included
- for indoor and outdoor use
- Plug and Play standard, nothing needs to be configured
- F connectors
Technical parameters
- number of inputs: 2
- number of outputs: 1
- active band: DAB+ / VHF (BIII), UHF k. 21 - 48
- operating frequency: 174 - 240 MHz / 470 - 694 MHz
- input level: 40 - 100 dBµV
- output level: 90 dBµV - AGC
- isolation between inputs: > 35 dB
- LTE band suppression: > 40 dB
- power supply (2437): 12V DC, 350 mA (max.)
- input voltage of the power supply: 230V~AC, 50 Hz
- number of power supply outputs of the power supply: 2 (F connector)
- preamplifier dimensions: 112 x 98 x 56 mm
- power supply dimensions: 120 x 115 x 50 mm
Package contents
- 1x Johansson 7474L2 preamplifier
- 1x 2437 power supply
- 1x mast case
- 1x manual
Product features
- convenient and smart merging of 2 antennas
- designed for DVB-T2 and DAB+ radio broadcast
- automatic adjustment of all channels to the same level (AGC)
- peak filter slope for adjusting adjacent channels
- automatic detection of SAW filters
- integrated 5G LTE filter
- protection against electrostatic discharge (ESD)
- power supply and mounting hardware included
- for indoor and outdoor use
- Plug and Play standard, nothing needs to be configured
- F connectors
Technical parameters
- number of inputs: 2
- number of outputs: 1
- active band: DAB+ / VHF (BIII), UHF k. 21 - 48
- operating frequency: 174 - 240 MHz / 470 - 694 MHz
- input level: 40 - 100 dBµV
- output level: 90 dBµV - AGC
- isolation between inputs: > 35 dB
- LTE band suppression: > 40 dB
- power supply (2437): 12V DC, 350 mA (max.)
- input voltage of the power supply: 230V~AC, 50 Hz
- number of power supply outputs of the power supply: 2 (F connector)
- preamplifier dimensions: 112 x 98 x 56 mm
- power supply dimensions: 120 x 115 x 50 mm
Package contents
- 1x Johansson 7474L2 preamplifier
- 1x 2437 power supply
- 1x mast case
- 1x manual
