The Johansson 7722L2 is a line amplifier for terrestrial TV signal distribution, covering VHF (40–320 MHz) and UHF (470–694 MHz) frequency bands. Its built-in LTE/5G filter blocks interference from mobile networks, protecting signal quality on both bands.

With independently adjustable gain on VHF and UHF, the 7722L2 is suited for installations where the two bands need separate level optimisation. Remote powering capability and flexible mounting options make it straightforward to deploy in both new builds and retrofit installations.

Key Features

• 1 input covering 40–320 MHz (VHF) and 470–694 MHz (UHF) in a single unit
• 2 outputs for splitting the amplified signal
• Built-in LTE/5G filter to suppress interference from mobile networks
• Independently adjustable VHF gain: 15–30 dB
• Independently adjustable UHF gain: 18–28 dB
• Switchable remote power (24 V / 55 mA) for powering remote devices
• Power LED indicator for quick status confirmation
• Compatible with wall mounting and DIN rail mounting

Product Benefits

• Independent gain control on VHF and UHF allows precise level balancing without additional equalisation hardware
• Built-in LTE/5G rejection prevents co-channel interference as 5G networks expand into former TV spectrum
• Switchable remote power eliminates the need for a separate power supply at the mast head
• Two outputs allow the amplified signal to feed two distribution lines from a single unit
• Dual mounting compatibility — wall or DIN rail — suits a wide range of enclosure types

Technical Specifications

• Model: Johansson 7722L2
• Frequency Range: 40–320 MHz (VHF) + 470–694 MHz (UHF)
• Number of Inputs: 1
• Number of Outputs: 2
• Adjustable VHF Gain: 15–30 dB
• Adjustable UHF Gain: 18–28 dB
• Noise Figure: 3.0 dB (typical)
• Max. Output Level: 107 dBµV
• Return Loss (input/output): 10 dB
• Isolation Between Outputs: 15 dB
• Remote Power: 24 V / 55 mA
• Mains Power: 230 V~ / 6.9 VA
• Mounting: Wall or DIN rail

Why You'll Love It

• Ready to install in a standard DIN rail cabinet or on any wall surface without extra adapters
• The LED power indicator gives instant confirmation that the unit is running, simplifying troubleshooting
• Compact design keeps the installation tidy inside headend enclosures
• Manufactured by Johansson, a specialist in professional antenna signal processing equipment