replaced. Also check that the position of the aerial has not been misaligned 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 SLx2B amplifier to your DTT receiver output followed by your remaining
equipment. If the signal is still too strong, fit a signal attenuator between the aerial downlead and
DTT receiver to help reduce the signal strength.
For specific help with digital terrestrial television reception problems, visit www.dtg.org.uk
Problems with satellite television
If you are experiencing any problems with your satellite television picture, check that all cables
and connectors have been fitted 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.
Technical Support
If you are experiencing problems setting up your SLx2B amplifier, or have any questions
regarding this product or any other product within the Philex range, please call the Philex
Customer Care Line on 08457 573 479 (UK only). Calls are charged at local rate. Mobile call
charges may vary, please contact your network provider for details.
Alternatively, please visit our technical website at http://technical.philex.com
TECHNICAL SPECIFICATIONS
Inputs
1
Outputs
2
Frequency range
UHF 470 - 862MHz
VHF 47 - 230MHz
Max output level
94dBµV
Gain
6dB
per
split
Noise
3.5dB
Isolation loss
22dB
Weight
330g
Dims (w x d x h)
130 x 75 x 45mm
