Multiband Amplifier Terra ma400 (FM/VHF/UHF)

Code: R82520
Price Disc. Quantity Validity
€89.06 0 % from 1 piece
Terra ma420 is a top class amplifier of FM, VHF, and UHF signals.
• Three independent amplification paths for FM, VHF/DAB, UHF
• Built-in crossover
• Smooth gain control -15...0 dB
• Additional attenuator -10 dB
• Power supply for preamplifiers DC 12V 0.1A
• Gain 30dB
• Maximum signal level of IMD3 VHF 116


4-year warranty.



Terra ma420 R82520 is a top class amplifier of FM, VHF, and UHF signals. The output signals can then be distributed in large MATV systems - in multifamily buildings, hotels, public buildings, etc. Its high gain (30 dB) and maximum output level of 118 dBuV allow for building very large systems.
The device has been designed for cooperation with at420 R82510 channel amplifiers and mt420 R82515 modulators.
Each path is equipped with a dedicated potentiometer for smooth gain reduction. Additionally, the output level of the signals in any of the three bands can be instantly reduced by 10 dB with an appropriate switch.
The amplifier can be powered with a 12 VDC power supply with minimum current capacity of 0.48 A (for one unit). In the case of a greater number of the units, the best choice is the dedicated power supply DR-60-12 R82532. The ma400 amplifier has the ability to power masthead preamplifiers (12 VDC, in each path, with total current consumption up to 100 mA).
The unit can be installed on a wall (with the wall mount), or placed on universal DIN rail R82538 in a 19" RACK cabinet.
Distinguishing features
  • Three independent paths (FM, VHF&DAB, UHF)
    • 3 separate inputs,
    • individual gain adjustment in each path: -15...0 dB,
    • individual attenuator in each path: -10/0 dB,
    • each path has preamplifier power option: 12 VDC, 0.1 A max,
  • Max gain: 30 dB,
  • Max output level IMD3: VHF 116 dBuV; UHF 118 dBuV,
  • DIN rail mountable, also in 19" RACK cabinets.


Product type Broadband amplifier
Name ma400
RF input number 3
Operating band FM+VHF+UHF
Applications Indoor
standard DVB-T/T2
Specyfikacja techniczna
FM input Frequency range MHz 88...108
Gain dB 30
Impedance Ohm 75
VHF input Frequency range MHz 174...230
Gain dB 30
Impedance Ohm 75
UHF 1 input Frequency range MHz 470...862
Gain dB 30
Impedance Ohm 75
RF output Signal strength dBµV 116 for VHF, 118 for UHF
Impedance Ohm 75
level control dB -10/0 – switch, -15...0 – potentiometer
Return loss dB >10
Noise ratio dB <7
RF combiner Frequency range MHz 47...862
Gain dB 0
Preamplifier power supply V/A 0-12/0.1 (total for 3 inputs)
Configuration switch+potentiometer
Built-in power supply No
Current drawn V/A DC 12/0.48
RACK 19” mounting Yes
Operating temperature °C 0...+50
Weight kg 0,9
Dimensions mm 36 × 107,5 × 198