Labgear LOG28K User manual

General Safety Precautions
Do not undertake work outdoors at height unless you are
competent in the use of ladders and other access equipment.
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.
Congratulations on the purchase of your log periodic
aerial.The aerial is ideal for the reception of all
available signals in strong and medium signal
strength areas.
Installation Instructions
For optimum results install the aerial using double screened CAI approved
digital coax cable and screened coax outlets.You will need to t the coax
cable with the F type connector supplied to connect to the downlead
(not supplied) to the F socket on the aerial.
1a. Thread the cable through the weather boot supplied.
1b.
Fold the braid back over the outer sheath*.Tear off or cut away
exposed foil. Screw the F plug on to the cable.
1c. Trim the inner wire, leaving 2mm exposed.
*To prevent short circuits ensure that no braid touches
the inner conductor.
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.
The plate for the bracket has extra holes drilled at right angles to
allow vertical mounting of the aerial.
The aerial comes fully assembled. If mounting on an existing mast
check that the mast is in good condition and rmly xed.
2. Loosen the wing nuts on the tted mast clamp open the clamp
and slide the clamp over the top of the mast.
Tighten the wing nuts tightly until the aerial is held rmly in a
horizontal position as shown in Fig. 2a to 2c.
• Built in lter removes any signals from Lte 800 4G and
Lte 700 5G mobile phone transmitters which might
cause interference
•
F type connection
• Superior rejection of impulse noise - the largest cause of
picture freezing and signal dropout on Freeview reception
• Gain 10.2dBi
• Highly directional
• Low wind resistance
• Supplied fully assembled with mast clamp,
F connector and rubber weather boot
28 Element Log-Periodic
TV Aerial Group K
LOG28K
User Guide
Support:
www.labgear.co.uk/support 1
Full HD
HD
Filter
Fig. 2a
Fig. 2b Fig. 2c
Fig. 1a
2mm
8mm
6mm
end of insulation
should be flush
with this face
Fig. 1b
Fig. 1c

3. Connect the aerial downlead to the ‘F’ socket on the back of the
aerial (be careful not to over tighten the F connector) see Fig. 3.
4. Slide the weather boot over the ‘F’ connector and socket to
make a good seal - see Figs. 3 and 4.
Then secure the coax downlead to the mast with cable ties or
insulating tape to prevent it shaking loose in high winds.
5. Finally connect the aerial to your TV or other reception
device and check the picture. Fine adjust the direction
of the aerial to obtain the optimum signal reception.
Fig. 4
Insulating Tape/
Cable Ties
Weather Boot
F Connector
Aerial
F Socket
No picture:
Check all connections from aerial to TV.
Poor picture:
Check all 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.
Troubleshooting
© Philex Electronic Ltd. 2023 vb1.3
For further information, please contact:
Technical Support: www.labgear.co.uk/support/
Specications
Frequency Range MHz 470 - 694
TV Channels 21 - 48
Forward Gain dBi 10.2
Front/Back Ratio dB >20.0
Beam Width +/-deg. +/-26°
PCB Balun Lte700/Lte800 Filter
Connector F-Type
Length 1,000mm
Width 340mm
Other Useful Websites for Digital Advice:
*To nd out what digital channels are available in your area go to
https://www.freeview.co.uk/
To nd your nearest transmitters (distance, compass bearing and
predicted signal strength) go to
http://www.wolfbane.net/cgi-bin/tvd.exe
Fig. 3
UK Distributor
Philex Electronic Ltd.
Kingsher Wharf, London Road,
Bedford MK42 0NX,
United Kingdom.
EU Distributor
Philex Electronic Ireland Ltd.
Robwyn House, Corrintra,
Castleblayney, Co. Monaghan,
A75 YX76, Ireland.
Waste electrical and electronic products should not
be disposed of with household waste. Please recycle
where facilities exist. Check with your Local Authority for
recycling advice.