Engel AM 6162 L Manuel D'utilisation page 13

4 Adjusting the gain level
If you are still experiencing reception
problems after installing the AM6162L,
please refer to the troubleshooting guide
below:
No picture or sound
No signal is reaching your television due
to a possible break in the aerial signal
path. Ensure that all equipment has been
switched on (including the AM6162L
amplifier) and that all coaxial connectors
have been fi tted correctly.
Snowy picture
Your signal strength is still too weak. Ensure
that your aerial is positioned correctly
(pointing at your local TV transmitter).
Ageing aerials become corroded by the
weather, which may need to be replaced.
Also check that the position of the aerial
has not been mis-aligned by weather,
birds, or loft activity.
'Herringbone' pattern
'Herringboning' is generally caused by
too strong signal or possibly by local high
power transmitters such as CB, amateur
or taxi radios. Your TV sound may be
affected as well as the picture. Use a
signal attenuator (available from your local
electrical retailer) to reduce the gain of
your aerial signal and improve your picture.
If you are located very close to your local
television transmitter, point your aerial
at an alternative transmitter in order to
receive a more suitable level signal.
Problems with DTT
Unlike analogue terrestrial television, it is
not possible to view DTT channel under
weak signal strength conditions.
Therefore, typically you will either receive
DTT channels with a clear picture and
sound or you will not receive any channels
at all.
Sometimes, an insufficient digital signal
can cause occasional blocking, freezing or
complete loss of picture. Some roof aerials
may not be suitable for digital terrestrial
television.
Ensure that you have fitted a suitable
wideband, high gain aerial to help improve
signal quality to a suitable level for clear
DTT reception.
Blocking, freezing or complete loss of
picture can also occur when a digital signal
is too strong.
If your signal is too strong then connect
your DTT receiver directly to the UHF aerial
downlead, then connect the AM6162L
amplifier to your DTT receiver output
followed by your remaining equipment.
Problems with satellite television
If you are experiencing any problems with
your satellite television picture, check
that all cables and connectors have been
fi tted correctly. If the problem persists it
is probably due to the dish alignment or
a temporary problem with the channel
transmissions. Please contact your local
satellite dealer if the problem persists.
UK