53
Technical
Frequently Asked
Question
After Digital TV Auto Tuning
only some or no services are
found
Check to ensure your area is covered by DVB
transmissions.
Check that the aerial and antenna cable are designed
for DVB. For your safety, the aerial and cable should be
inspected / installed by a licenced installer that should
comply with Australian Standard AS1417.1.
Note: If you live within 5-10 Km of DVB transmission
towers, a combined VHF / UHF aerial should be
adequate. Outside this area, separate VHF and UHF
aerials provide superior reception performance.
If you live in a unit or apartment, check to ensure the
Master Antenna TV (MATV) system is designed for
analogue and DVB-T reception.
Please consult your body corporate.
Aerial connection when
using DTV and VCR / DVD
Recorder
To maintain optimum signal quality from TV aerial, use a
TV aerial splitter (as illustrated) when connecting two or
more equipments to the same aerial.
Problem
Actions
Digital TV
Digital TV reception technology requires high quality, robust DTV signals which in some
domestic aerial installations, may be relatively poor despite good analogue reception.
Picture regularly breaks up
on some programmes, or “No
Signal” message
Check “Signal Condition”. (p. 31) If “Signal Quality” or
“Signal Strength” are displayed in red or constantly
changing, check aerial.
If problem persists consult your local TV aerial installer.
Check that the aerial and antenna cable are designed
for DVB. For your safety, the aerial and cable should be
inspected / installed by a licenced installer that should
comply with Australian Standard AS1417.1.
Interference (known as impulse noise) from household
appliances such as light switches, fridges etc may cause
picture break up and / or audio distortion. Use high
quality quad shielded coaxial cable fly lead between
TV and antenna wall socket to minimise impulse noise
pickup. If problem persists consult your local TV aerial
installer.
When “No Signal” message is displayed check TV aerial
connection.
The received signal may be too weak to allow the TV
to reliably lock to the desired “No Signal” programme to
generate a stable picture. Repeat the tuning procedure
(p. 31). If problem persists consult your local TV aerial
installer.
Picture very infrequently
breaks up on some or all
programmes
Electrical atmospheric interference caused by local or
distant lighting storms or heavy rain with wind in “leafy”
locations may cause pictures to break up and audio to
mute or distort momentarily.
Impulse noise interference from an infrequently used
electrical appliance, or a passing vehicle or lawn mower
with a “noisy” ignition system.
TV
VCR
Aerial
Input
terminal
Aerial Output
Aerial Output
(Individual aerial)
Aerial Input
(Individual aerial)
Splitter
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