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For both connector types the use of crimp connectors, used in accordance with the manufacturers
instructions will give the best results. The importance of achieving sound braid connections cannot be
over-stressed. F connectors should be tightened with a spanner, not left finger tight.
Important: The FULL output (where fitted) must always be terminated in a well matched 75 Ω load. The
terminator plug supplied must be fitted if this output is not used.
Using remote control:
The R versions of the amplifiers are compatible with the PROception PROSAT1EYE and other Sky* remote
control extenders. To use the remote control feature it is essential that the amplifier input is fed directly
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from the RF OUT-2 connector or I/O port
of the Sky receiver. The amplifier provides 9 V DC power for up
to two remote receiver eyes. Note that some Sky receivers require their RFOUT-2 power option to be
enabled in order for remote control extension to work. On the Sky handset press SERVICES, 4, 0, 1,
SELECT, then select the SECOND OUTLET POWER SUPPLY option. Set this to be ON, SAVE SETTINGS and
BACK UP out of the menu.
As always with wired remote extender systems, it is essential to maintain DC continuity through the
coaxial cabling between the amplifier output(s) and the IR receiver equipment in the remote room(s). For
this reason isolated outlet plates cannot be used in the remote rooms and all connections must be
securely clamped, crimped or soldered. When troubleshooting remote control problems, the first step
should be to check for the presence of approximately 9 V DC on the cable in the remote room.
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I/O Port Replicator needed for Sky box DXR850/890; See Supplementary Installation Instructions to
introduce PROception proLINK22 'RF replicator'.
System equipotential bonding:
Distribution systems supplying signals to more than one household should comply with the safety
requirements of BS EN 60728-11. This effectively requires earthed equipotential bonding of the system.
(Isolated outlet plates cannot be used with PROAMP R versions for functional reasons.) Although not
mandatory in single households, system equipotential bonding is strongly recommended for all
installations. All PROAMP Mk 3 s are provided with a bonding terminal. A bonding conductor of 4 mm²
should be provided, connected to the main earth terminal of the electrical installation which supplies the
unit. Bonding may be effected using PROception PROBAR5 or 8 equipotential bonding bar.
Features
PROAMP24 & 24R
Number of outputs
4
Signal frequency range (VHF)
87.5-108MHz & 174-230MHz
Signal frequency range (UHF)
470-862MHz
Noise figure
3dB
Gain to each output (except FULL)
7dB
Gain to each FULL output
-
Output capability (see note below)
86dBµV
IR receiver ('eye') line-power
9V@15mA (s/c protected) present at all outputs ('R' versions only)
Signal connector type
Signal connector type ('R' versions)
Mains power requirement
Operating temperature range
1.Full output is not fitted on R versions. 2.Output capability is given for 5 analogue TV channels plus up to 6 DTT
multiplexes at <-14dB relative level (VHF FM and DAB radio signal should not exceed –10dB relative to analogue TV).
Dual-band VHF input:
The VHF input will accept Band II FM radio signals and/or DAB or TV signals in Band III. Separate bandpass
circuits in the amplifier provide filtering outside and between these bands. Where more than one aerial is
to be connected a separate diplexer such as the PROception proCOM31T should be used (see example in
Fig.1).
Making use of the FULL output:
The FULL output (where fitted) allows additional outlets to be fed via an external passive network. This
network should present a good 75 Ω load to the amplifier (otherwise the other outputs will be affected).
Fig. 1 shows an example of correct practice, using an 8-way tap unit to provide eight additional outlets.
The terminator plug supplied must always be fitted if the FULL output is not used.
PROAMP26 &26R
PROAMP28 &28R
6
8
87.5-108MHz & 174-230MHz
87.5-108MHz & 174-230MHz
470-862MHz
470-862MHz
3dB
3dB
5dB
5dB
16dB
16dB
82dBµV
82dBµV
'IEC'(IEC 60169-2)
F'(IEC 60169-24)
230V 50Hz@2W (8 VA)
-10 - +40 °C
Overheating:
These amplifiers are intended for use in moderate climates only. They should not be used in tropical regions.
The recommended ventilation clearances and other precautions given in the relevant section of this instruction
leaflet should be observed to prevent overheating. No unit should be fixed where it is likely to become
smothered by soft furnishing fabrics such as curtains, or by thermal insulation material in a roof space or
building void. Mains powered equipment should not be left resting on a carpet
Water and fire risks:
The appliance is not waterproof. It is intended for indoor use only and must not be fixed where it could be
exposed to dripping or splashing water. Objects containing liquids should not be placed on or near the
appliance. To prevent risk of fire, no object with a naked flame should be placed on or near the appliance, or its
associated wiring.
Mains plug and disconnection from the supply:
The appliance is supplied with a standard fused plug fitted. If this is unsuitable, refer to the instructions below. If
you need to change the fuse in the fitted plug, a 3 Amp fuse to BS 1362 carrying the ASTA or BSI approval mark
must be used. Always replace the plastic fuse carrier when renewing the fuse. The plug (or other means of
disconnection from the supply, if used) should remain readily accessible for operation when necessary. The LED
power indicator on this equipment should not be regarded as providing reliable indication of supply
disconnection.
Changing the plug:
If the fitted mains plug is not suitable for the socket-outlets in use, it should be cut off and a new plug fitted.
Wiring the new plug: Instructions supplied with the new plug should be followed. The brown wire must be
connected to the live (L) terminal of the plug and the blue wire to the neutral (N) terminal. Neither wire should
be connected to the earth (E) terminal of a 3-pin plug (the appliance does not require an earth connection).
Ensure that the cord grip in the plug is correctly used and clamps the sheath of the cord firmly.
Fuse Rating: If the new plug is a fused type, the fuse fitted should be rated at not more than 3 Amp.
Caution: The old plug should be destroyed immediately since it would be dangerous if plugged into a live
socket.
2
Safety Instructions
3
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