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Tri-Boom Ultra High-Gain
LAB450K
TV Aerial Grp. K
User Guide
Congratulations on the purchase of your high gain digital
aerial. The aerial is ideal for the reception of all available
signals in weak and fringe areas. The aerial is of particularly
robust construction to ensure a long operating life.
•
Ideal for fringe reception areas
• Tilting mast clamp for easy adjustment
• Tuned to prevent interference from 4G/5G mobile signals
• Easy dipole assembly
• Unique compact folding design
• Electronic 75Ω balun
• Connection: F type
General Safety Precautions
Do not undertake work outdoors at height unless you are
competent in the use of
Always use correct equipment, observe appropriate safety
precautions and follow manufacturers instructions. If in doubt
consult a professional installer.
Before starting installation check structure is sound and check for
hidden wiring or plumbing.
When working on an installation outside, beware of overhead power lines.
Observe safe working practices, tread carefully on roofs and ensure
adequate lighting is available if working in loft or roof space.
Before making any connections switch electricity off at the mains.
To avoid injury always route cables or wiring carefully. Ensure cable
is correctly routed before xing into position, taking care not to
overtighten cable clips.
This kit contains small parts - keep out of reach of children.
After installation make regular maintenance checks for wear and tear.
ladders
and other access equipment.
Box Contents
2
2
3
1. Triboom x1
2. UHF Reflector clamps x2
(inc. bolt & wing nut)
3. Dipole x1 (inc. wing nut x1)
4. UHF Reflectors x2
1
5
4 4
5. Tilting Mast Clamp
(inc. wing nuts x2)
6. Weather Boot x1
7. F Plug x1
6
7
Aerial assembly
A
1. Twist the lock to open
2-3. Unfold the booms
4. To lock the booms in
position turn both of the
two knobs on either
side of the aerial in a
clockwise direction
through 180˚ making
sure that the arrows
line up with the locked
symbol - see Fig. 4.
1
8
Fasten the balun to the underside of the main
B C
boom as shown in Fig. 5. Make sure the balun is the
right way round as shown in Fig. 4 and 8.
2
4
3
8
Fix the reflectors to the main boom
using the brackets and the bolt with
wing nut supplied
Support:
www.labgear.co.uk/support
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Loosen the screws/bolts of the mast clamp and
D E
slide it onto the boom behind the reflectors.
Attach the assembled aerial
and clamp to the mast
Clamp
assembly
Installation
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.
Thread the cable through
H
the lower reflector
7. F Plug 3. Balun
Attach the connector slide up
I
the boot to make a water tight
seal, attach cable to mast
Insulating Tape
Troubleshooting
No picture:
Check all the connections from aerial to TV.
Poor picture:
Check all the connections from aerial to TV.
Check aerial is properly aligned to the correct transmitter.
If the aerial has been loft mounted try mounting outside.
Make sure new digital coax cable has been used throughout
the installation.
Check the transmitter signal is not obstructed by nearby trees or
buildings.
If in a very weak signal area or for long cable runs,
installing a masthead amplifier will improve the signal.
If in a strong signal area the signal strength may need to be
reduced by fitting an attenuator.
F.
Thread the cable through
the weather boot
G.
Fold the braid back over
the outer sheath*. Tear off
or cut away exposed foil.
Screw the F plug (I) on to
the cable. Trim inner wire,
leaving 2mm exposed.
*To prevent short circuits
ensure that no braid touches
the inner conductor.
Adjust the tilt and direction
J
of the mast clamp (5) to
tune for optimum reception.
For best results mount the aerial
on an outdoor aerial mast
pointed at 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 unsure of the direction
the aerial should be pointing in,
or the orientation of the aerial
(horizontal for a main transmitter, vertical for a relay transmitter)
check your neighbours’ aerials. When adjusting the tilt angle
of the aerial, aim for horizontal or very slightly tilted upwards.
Tighten the nuts on the tilting mast bracket (7) when the
position is correct.
To help you align your aerial, ask someone to watch a connected TV while you make adjustments.
You can also use a signal strength meter (not included) to
align your aerial for optimum reception.
G
8mm
6mm
2mm
5. Mast Clamp
Specications
Frequency Range MHz 470-694
TV Channels 21-48
Forward Gain dBi 13.5
Front/Back Ratio dB >16
Beam Width +/-deg. H32°/V40°
Connector F-Type
Length 1100mm
Width 600mm
F
For further information, please contact:
Customer careline: 08457 573479 (Local Rate - UK Only )
Technical Support: www.philex.com/support/
Other Useful Websites for Digital Advice:
*To nd out what DTT channels should be available locally and to
nd out where your nearest transmitter is (distance and compass
bearing) visit: http://www.wolfbane.net/cgi-bin/tvd.exe
Support:
www.labgear.co.uk/support
Additional technical information
WEEE symbol. Waste electrical and electronic products should not be
disposed of with household waste. Please recycle where facilities exist.
yyWxx
UK Distributor
Philex Electronic Ltd.
Kingsher Wharf, London Road,
Bedford MK42 0NX,
United Kingdom.
Check with your Local Authority or local store for recycling advice.
Manufacturing date code: yy = year of production (21yy)
Wxx = week of production (01 to 52)
EU Distributor
Philex Electronic Ireland Ltd.
Robwyn House, Corrintra,
Castleblayney, Co. Monaghan,
A75 YX76, Ireland.
© Philex Electronic Ltd. 2021 vb1.1
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