4
VHF
FULL
UHF
3
2
1
4
VHF
FULL
UHF
3
2
1
Planning Your Distribution System - Choosing a Location for the Amplifier
The 4-way amplifier may be fitted in any convenient position the most popular being either the loft or the
sitting room near the main TV. In choosing a location, consider the following:
a) The amplifier needs to be plugged into the mains, so it must be near a socket
b) You will need to run cables from the amplifier to each outlet point
c) You must be able to get the cable from the aerial to the input of the amplifier (via the VCR or DVD recorder
if you wish to distribute VCR/DVD signals)
Tilting
Mast
Clamp
Fig. 8
Adjust aerial
to horizontal
before
tightening
bolts
UHF (TV)
Digital &
Analogue
UHF (TV)
Digital &
Analogue
Freeview™ Reception
Please note that the aerial will receive digital TV signals and the amplifier
supplied will distribute them but each TV will require a suitable set top box to
view Freeview™ channels (unless the TV has a built-in Freeview™ digital tuner).
Power
Supply
Coax Cable
Aerial Flyleads
Distributing the aerial signal around your home
Fixing
- The amplifier is best fixed to a wall or other suitable hard surface, using suitable screws and masonry plugs
(not supplied). The amplifier should not be left supported by its own wiring, nor should it be left resting on a carpet
or other insulating and/or inflammable surfaces and must be placed where it will not be smothered by curtains
or other fabrics, etc, or thermal insulation materials in a loft. A ventilation gap of at least 25mm should be left
around the front and sides of the unit.
Locating the amplifier
in the loft
Locating the amplifier
in the main sitting room
Wiring Coax Plugs and Coax Outlets
You will need to fit coax plugs to the aerial lead and to each of the leads running
to TV outlets so that they can be connected to the aerial amplifier.
1.
Unscrew coax plug housing and slide cap over cable.
2.
Strip 23mm of cable outer sheath. Gather copper braid, wrap around outer
sheath, slide claw over braid and crimp.
3.
Strip 18mm of inner insulation to leave 5mm exposed.
4.
Undo screw on plug/clamp, slide clamp over inner wire & tighten screw.
5.
Reassemble plug and trim inner wire flush with plug.
Next run the cables from the amplifier to the outlet positions, if drilling
through walls use a 6mm drill bit and be careful to avoid pipes and other cables.
Use the cable clips supplied to secure cables. Wire the screened flush outlets as
shown below and mount in 35mm or deeper mounting boxes (not supplied).
1. Prepare cable as shown in Fig. 1.
2. Unscrew the 2 screws on the terminal cover and lift lid. Feed prepared cable
over the braid clamp and thread the centre wire through the hole in the central
terminal, tighten the screw on the central terminal. Trim any stray braid that
might come into contact with the centre wire or central terminal. Close terminal
lid and tighten screws. (see Fig. 2)
3. Screw the faceplate into the mounting box making sure cable is not pinched or kinked.
1
2
3
4
5
braid
centre wire
5mm
5mm
5mm
Fig. 1
Fig. 2
Centre Core
Fixing
Cable Entry
Pole
Mount
Pole Mount
Alternative
assembly
Fig. 10
C. Fitting the reflectors
1. Using the reflector clamps, screw and
large wing nut, fix the reflector
assemblies to the main aerial boom as
shown in Fig. 3.
2. Check that the reflector clamp tabs
locate in the holes of the reflector boom
sections as shown in Fig. 4. Also ensure
that the wing nut is tight.
3. Ensure that the reflector elements are
facing towards the front of the aerial
(convex surface forward).
D. Connecting coax cable
1. Before preparing and stripping the cable
ready for connection, feed the coax cable
through the hole in the terminal cover.
2. Prepare cable as shown in Fig. 5.
3. Feed prepared cable through the braid clamp
and thread the centre wire through the hole in
the central terminal as shown in Fig. 6.
4. Clamp the cable braid securely first, then
tighten the screw on the central terminal.
Trim any stray braid that might come into
contact with the centre wire or central terminal.
5. Replace terminal cover carefully and securely
making sure that the cable is not trapped or kinked.
E. Coax cable routing
For optimum performance it is very important that the
coax cable should be routed as shown in Fig. 7.
PVC insulation tape can be used as shown to hold the
cable in place.
F. Fixing to a mast
For best results the aerial should be mounted on an
outdoor aerial mast and pointed in the direction of the
nearest transmitter* making sure it is in a position where
the transmitter signal will not be obstructed by nearby
trees and buildings. If you are in any doubt about the
direction in which the aerial should be pointing or the
orientation of the aerial (horizontal for main transmitter,
vertical for relay transmitter) check your neighbours’
aerials.
If mounting on an existing mast check that the mast is in
good condition and firmly fixed.
1. Using the clamp supplied fix the aerial to the
mast - see Fig. 7 & 8 .
2. After the aerial direction has been fine tuned
for best reception tighten the bolts firmly until
the aerial is securely fixed to the mast.
Alternatively for loft mounting, assemble the pole
mount and mast clamp as shown below (figs. 8-10).
The pole mount can be fitted to a
roof timber (use screws only) or to a
suitably sound indoor wall surface.
Fig.9
engage tab
in hole
reflector
element
reflector boom
assembly
reflector
clamps
Fig. 4
Fig. 3
braid
centre wire
5mm
10mm
8mm
central
terminal
braid
clamp
Fig. 5
Fig. 6
mast
clamp
aerial
boom
Fig. 7
PVC
insulation
tape
