Satellite Accessories

Johansson 7474L2/2437 Mast Amplifier Satellite

The Johansson 7474L2/2437 masthead amplifier combines 2, 3 or 4 terrestrial TV antennas and automatically scans channels using SMART AMP technology, with no manual programming required. It amplifies...

The Johansson 7474L2/2437 masthead amplifier combines 2, 3 or 4 terrestrial TV antennas and automatically scans channels using SMART AMP technology, with no manual programming required. It amplifies weaker signals and provides a uniform output level of 90 dBµV across all channels. The LTE band reuse function allows channels of the same frequency to be moved...

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125 00 €
Delivery by Thu, 05 Nov
14,00 €   shipping cost
Sent from Greece
From Lynk.gr 4.9 (10)
Greece
1 piece
See Satellite Reception on the page of Lynk.gr

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Description

Description

The Johansson 7474L2/2437 masthead amplifier combines 2, 3 or 4 terrestrial TV antennas and automatically scans channels using SMART AMP technology, with no manual programming required. It amplifies weaker signals and provides a uniform output level of 90 dBµV across all channels. The LTE band reuse function allows channels of the same frequency to be moved to the LTE band.

SAW filters on all four inputs provide protection against 5G and LTE interference, while all ports have ESD protection. The 2437 power supply delivers 12 V DC via coaxial cable and can be mounted on a wall or DIN rail. The kit includes the 7474L2 amplifier, the 2437 power supply, a manual and a wall bracket.

  • Type: Masthead amplifier
  • Amplifier inputs: 4
  • Amplifier outputs: 1
  • Technology: SMART AMP
  • Frequency range: 174–862 MHz (VHF Band III + UHF)
  • Output level: 90 dBµV across all channels
  • LTE rejection: >40 dB (5G, above CH48)
  • Adjacent channel isolation: >35 dB
  • Input sensitivity: Minimum 40 dBµV
  • LTE band reuse: L2 = CH49–69 (694–862 MHz), with ON/OFF switch
  • Filters: SAW filters on all inputs
  • Amplifier power supply: 12 V / 350 mA, DC via coaxial cable
  • Operating temperature: -20 to +50 °C
  • Power supply inputs: 1
  • Power supply outputs: 2
  • Power supply output: 12 V DC / 400 mA
  • Power supply AC input: 110–240 V AC / 50–60 Hz / 6.5 W
  • Power supply insertion loss: 4–5 dB
  • Power supply output isolation: 10 dB
  • Power supply protection: Short-circuit protection
  • Power supply indicator: Power LED
  • Power supply mounting: Wall or DIN rail
  • Port protection: ESD
  • Package contents: 7474L2 amplifier, 2437 power supply, manual, wall bracket

Manufacturer

See full description

Specifications

Specifications

Type
Mast Amplifier

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (1)

Reviews

  1. 5 stars
    0
  2. 1
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • It is an excellent choice for areas that receive television stations from 3-4 nearby centers, and in other cases, either the signals would interfere, or the available channels would be lost since most amplifiers have up to 2 UHF inputs. I use it in Lemnos and I have connected 3 antennas to it that point in completely different directions: 1) Myrina 2) Thassos 3) Pelion. I receive all the local channels from 3 different television regions, Thessaly, Thrace, Northern Aegean, and of course, I receive all the nationwide channels of ERT and DIGEA and from the local center that has the most stable and permanent reception, but also as duplicates from the other 2 centers on different frequencies.

    The flaws that take away one star from my review are
    1) When the signals from the distant centers are low - but not so low that they are not received at all - it does not save the channels. I had to do many restarts and rescans of the amplifier to force it to save all the frequencies (i.e., one time it would save only Thassos channels, another time only Pelion channels, I had to do many restarts to save channels from both centers + the local one)
    2) It would be preferable instead of automatic tuning (or alongside it) to have the option for manual tuning, meaning that you can set which frequencies to receive from antenna 1, which from antenna 2, and which from antenna 3.

    Translated from Greek ·
    Did you find this review helpful?
  • It is an excellent choice for areas that receive television stations from 3-4 nearby centers, and in other cases, either the signals would interfere, or the available channels would be lost since most amplifiers have up to 2 UHF inputs. I use it in Lemnos and I have connected 3 antennas to it that point in completely different directions: 1) Myrina 2) Thassos 3) Pelion. I receive all the local channels from 3 different television regions, Thessaly, Thrace, Northern Aegean, and of course, I receive all the nationwide channels of ERT and DIGEA and from the local center that has the most stable and permanent reception, but also as duplicates from the other 2 centers on different frequencies.

    The flaws that take away one star from my review are
    1) When the signals from the distant centers are low - but not so low that they are not received at all - it does not save the channels. I had to do many restarts and rescans of the amplifier to force it to save all the frequencies (i.e., one time it would save only Thassos channels, another time only Pelion channels, I had to do many restarts to save channels from both centers + the local one)
    2) It would be preferable instead of automatic tuning (or alongside it) to have the option for manual tuning, meaning that you can set which frequencies to receive from antenna 1, which from antenna 2, and which from antenna 3.

    Translated from Greek ·
    0
  • See all

Description & Specifications

The Johansson 7474L2/2437 masthead amplifier combines 2, 3 or 4 terrestrial TV antennas and automatically scans channels using SMART AMP technology, with no manual programming required. It amplifies weaker signals and provides a uniform output level of 90 dBµV across all channels. The LTE band reuse function allows channels of the same frequency to be moved to the LTE band.

SAW filters on all four inputs provide protection against 5G and LTE interference, while all ports have ESD protection. The 2437 power supply delivers 12 V DC via coaxial cable and can be mounted on a wall or DIN rail. The kit includes the 7474L2 amplifier, the 2437 power supply, a manual and a wall bracket.

  • Type: Masthead amplifier
  • Amplifier inputs: 4
  • Amplifier outputs: 1
  • Technology: SMART AMP
  • Frequency range: 174–862 MHz (VHF Band III + UHF)
  • Output level: 90 dBµV across all channels
  • LTE rejection: >40 dB (5G, above CH48)
  • Adjacent channel isolation: >35 dB
  • Input sensitivity: Minimum 40 dBµV
  • LTE band reuse: L2 = CH49–69 (694–862 MHz), with ON/OFF switch
  • Filters: SAW filters on all inputs
  • Amplifier power supply: 12 V / 350 mA, DC via coaxial cable
  • Operating temperature: -20 to +50 °C
  • Power supply inputs: 1
  • Power supply outputs: 2
  • Power supply output: 12 V DC / 400 mA
  • Power supply AC input: 110–240 V AC / 50–60 Hz / 6.5 W
  • Power supply insertion loss: 4–5 dB
  • Power supply output isolation: 10 dB
  • Power supply protection: Short-circuit protection
  • Power supply indicator: Power LED
  • Power supply mounting: Wall or DIN rail
  • Port protection: ESD
  • Package contents: 7474L2 amplifier, 2437 power supply, manual, wall bracket

Manufacturer

Type
Mast Amplifier

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (1)

  1. 5 stars
    0
  2. 1
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • It is an excellent choice for areas that receive television stations from 3-4 nearby centers, and in other cases, either the signals would interfere, or the available channels would be lost since most amplifiers have up to 2 UHF inputs. I use it in Lemnos and I have connected 3 antennas to it that point in completely different directions: 1) Myrina 2) Thassos 3) Pelion. I receive all the local channels from 3 different television regions, Thessaly, Thrace, Northern Aegean, and of course, I receive all the nationwide channels of ERT and DIGEA and from the local center that has the most stable and permanent reception, but also as duplicates from the other 2 centers on different frequencies.

    The flaws that take away one star from my review are
    1) When the signals from the distant centers are low - but not so low that they are not received at all - it does not save the channels. I had to do many restarts and rescans of the amplifier to force it to save all the frequencies (i.e., one time it would save only Thassos channels, another time only Pelion channels, I had to do many restarts to save channels from both centers + the local one)
    2) It would be preferable instead of automatic tuning (or alongside it) to have the option for manual tuning, meaning that you can set which frequencies to receive from antenna 1, which from antenna 2, and which from antenna 3.

    Translated from Greek ·
    Did you find this review helpful?
  • It is an excellent choice for areas that receive television stations from 3-4 nearby centers, and in other cases, either the signals would interfere, or the available channels would be lost since most amplifiers have up to 2 UHF inputs. I use it in Lemnos and I have connected 3 antennas to it that point in completely different directions: 1) Myrina 2) Thassos 3) Pelion. I receive all the local channels from 3 different television regions, Thessaly, Thrace, Northern Aegean, and of course, I receive all the nationwide channels of ERT and DIGEA and from the local center that has the most stable and permanent reception, but also as duplicates from the other 2 centers on different frequencies.

    The flaws that take away one star from my review are
    1) When the signals from the distant centers are low - but not so low that they are not received at all - it does not save the channels. I had to do many restarts and rescans of the amplifier to force it to save all the frequencies (i.e., one time it would save only Thassos channels, another time only Pelion channels, I had to do many restarts to save channels from both centers + the local one)
    2) It would be preferable instead of automatic tuning (or alongside it) to have the option for manual tuning, meaning that you can set which frequencies to receive from antenna 1, which from antenna 2, and which from antenna 3.

    Translated from Greek ·
    0
  • See all
125,00 €
14,00 €   shipping cost