Johansson KIT 7474L2/2437 - Auto-programming Web Amplifier 5G

Johansson KIT 7474L2/2437

Auto-programming Web Amplifier 5G

Combining multiple terrestrial antennas for full HDTV reception in SFU is often a problem. Mostly, the signal from multiple antennas is combined using a simple splitter, but this solution doesn’t work:

• Loss of 4dB (minimum) = only half the signal left when combining 2 antennas
• Channels with same Channel Number are lost
• Poor isolation between adjacent channels
• Lots of interruptions due to bad signal quality
• TV viewers are looking more and more towards terrestrial TV reception. But the current situation is absolutely not optimal.

So the market needs a solution that offers better signal quality, more TV channels, Plug & Play installation!

Combining 2,3 or 4 tv antennas for full HDTV reception has never been so easy.

The Johansson KIT 7474L2/2437 is a web amplifier who offers better signal quality, more TV channels, and easy setup with no setup. It has 4 VHF/UHF inputs to mix terrestrial antennas with SMART AMP technology. The amplifier performs an automatic search of all channels, amplifying the weakest signals so that all output channels have uniform power. Channels with the same frequency will be amplified in the LTE band. Anti 5G filters integrated in all inputs

How it works?

Features

General

Scans all channels, amplifies the weak signals while keeping the strong channels

All output channels have an equal and stable output power

Treats even the most difficult situations with adjacent channels

Channels with the same frequency can be amplified in and re-located to the LTE band (switchable)

Fully automatic channel scan and process function upon double power start-up.

Fully automatic recognition of the applied country channel plan

SAW filters for LTE (5G) protection on all inputs

DC Power over coax

All ports ESD protected

7474L2 Amplifier: 

4 inputs / 1 output

LTE rejection - 5G (> CH48)

Frequency range - VHF BIII + UHF Automatic channel plan selection

LTE band rejection (dB) : >40 

Output power (dBµV) : 90

Frequency range (MHz): 174 - 862 

LTE band re-use : L2 = CH49-69 (694MHz-862MHz) , Switch ON-OFF

Adjacent channel isolation (dB) : >35 

Input sensitivity  (dBµV) : minimum 40 

Power : 12V / 350mA (DC over coax)

Power Supply : External power supply (ref. 2437 - 2 out)  included

Operating temperature (°C) : -20 to +50

2437 Power supply:

Outputs: 2

Insertion loss (dB): 4-5

Isolation between outputs (dB): 10

AC input voltage / Frequency / Power: 110-240 VAC / 50-60 Hz / 6,5 W

DC output voltage (VDC): 12

Output current (mA): 400

Short-circuit protection

Power LED indicator

wall or DIN-rail mountable

The set contents

1x Johansson KIT 7474L2/2437 - Auto-programming Web Amplifier 5G 

1x Manual

1x Wall clamp