The Johansson KIT 7422/2430 is a mast-head web amplifier for VHF and UHF television signals. It accepts 3 VHF-UHF inputs and is enclosed in a protective box that insulates the amplifier electronics and shields against moisture, making it appropriate for outdoor or rooftop antenna installations.

Gain is adjustable via a potentiometer, reaching up to 40 dB on the UHF band. The unit is powered by the included 24 V power supply, which also provides 2 outputs for signal distribution.

Key Features

• 3 VHF-UHF inputs
• Frequency range: 170–230 MHz (VHF) / 470–862 MHz (UHF)
• Adjustable gain via potentiometer: 10–30 dB (VHF) / 25–40 dB (UHF)
• Noise figure: 3.5 dB
• Maximum output level: 105 dBmV
• No GSM/LTE trap
• Housed in a protective weatherproof box
• 24 V power supply with 2 outputs

Product Benefits

• Adjustable gain allows the amplifier to be tuned to the signal conditions at the installation site rather than applying a fixed gain that may cause overload
• Weatherproof protective box keeps moisture away from the amplifier circuits, extending service life in outdoor environments
• 3 separate inputs allow combining signals from multiple antennas or directional sources before amplification
• 105 dBmV maximum output level accommodates distribution to several receivers without signal degradation

Technical Specifications

• Model: Johansson KIT 7422/2430
• Type: VHF-UHF Web Amplifier
• Band: VHF-UHF
• Inputs: 3
• Outputs: 2
• Frequency Range: 170–230 MHz / 470–862 MHz
• Gain: 10–30 dB (VHF) / 25–40 dB (UHF)
• Noise Figure: 3.5 dB
• Max Output Level: 105 dBmV
• GSM/LTE Trap: No
• Consumption: 75 mA
• Power Supply: 24 V

Why You'll Love It

• Potentiometer-controlled gain means you can fine-tune signal levels without swapping fixed-gain modules
• The weatherproof enclosure removes the need for a separate outdoor housing or cabinet
• 2 power supply outputs simplify installation where the amplifier and power injector are located at different points
• 3 dB noise figure is low enough to preserve weak signal quality from distant transmitters