Dual Mode 4-Way Return Path Amplifier, Line Powered

PROAMP104X - Dual Mode 4-Way Return Path Amplifier, Line Powered

Amplifier with or without PSU Kit
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Dual Mode 4-Way Amplifier, Line Powered, With Return Path

This versatile 4-way UHF amplifier can provide high-quality digital signals around the home and is particularly suitable for the multi-digital box household, whether using Freeview, Sky or both.



Dual mode operation

  • Mode 1: Apply power to the local power port, or power remotely via any output, and the unit behaves as a simple 4-way UHF amplifier. All return-path features are disabled in this mode.
  • Mode 2: Feeding the input from the RF OUT-2 output of a Sky receiver activates the return-path features allowing remote control of the satellite box using proSAT1EYE infrared 'eyes'.
  • Also available complete with power supply (proPSU11F).
  • With equipotential bonding point.


 Flexible powering

  • Power locally for Mode 1 using a proPSA125 (where mains available). Alternatively power remotely via any output using a proPSU11F, proPSU12F, suitable Freeview box or IDTV.
  • In Mode 2 the complete 4-way system can be powered entirely from either an old style Sky box or a proPSU11F via a proLINK22 (Flexible RF Output Modulator - restores Sky distribution) for one of new design Sky Boxes that have that they have no ‘RF‑2’ connection. See link below for more details.


Product Code
Gain NF Max Input Mode Power Requirement
Return Path Eye Power



4 dB

3 dB

85 dBµV



5 - 15V, 25 mA

9 - 12V, 38 mA






Find out more about using this product with the New Sky Boxes

Introducing the PROception proLINK22 ‘RF replicator’

New Sky set-top boxes such as the DRX595 and DRX890W do not have the familiar aerial input, RF-1 and RF-2 connectors. These RF-loopthrough facilities have been replaced with the new ‘I/O PORT’ – a small round connector (10- pin mini-DIN) which allows an external ‘RF replicator’ (modulator) unit to provide similar distribution functions.

Applicable to the following models

proAMP12R proAMP104X
proAMP24R proAMP310X
proAMP26R proMHD14R
proAMP28R proSAT1EYE
proSTR5M proSTR10CRS
proSTR5S proSTR10S

Data sheet

Amplifier Distribution Type
X-Amp DTT (Freeview) and Sky (Infra Red Control)
Amplifier TETRA Filtering
Amplifier Inputs
UHF Aerial
Amplifier Outputs
Amplifier Equipotential Bonding Point
Amplifier Powering
Remote or Local PSU
Sky Return Path

Specific References



PROAMP104X Manual

Instructions for Installation and Use.

Download (329.55k)

proLINK22 Supplementary Manual

Using this product with the New Sky Boxes

Download (0)

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