Velleman ANTM7 - Manual (Page 2)

ANTM7 VELLEMAN 2
• Use the original packaging if the device is to be transported.
• Note that all modifications of the device are forbidden for safety reasons.
• Only use the device for its intended purpose. All other uses may lead to short-circuits, burns, electroshocks, lamp
explosion, crash, etc. Using the device in an unauthorised way will void the warranty.
4. Installation
See diagrams on page 11.
5. Cleaning and Maintenance
1. Mechanically moving parts must not show any signs of wear and tear.
2. The electric power supply cables must be undamaged. Have the device installed by a qualified technician.
3. Disconnect the device from the mains prior to maintenance activities.
4. Wipe the device regularly with a moist cloth. Do not use alcohol or solvents.
5. Entrust a qualified technician with the maintenance of this device. Contact your dealer for spare parts if
necessary.
6. Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
No picture or sound No signal is reaching your television
due to a possible break in the signal
path.
Ensure that all equipment has been
switched on and that all coaxial
connectors have been fitted
correctly.
Snowy picture Your signal is too weak. Use a masthead aerial amplifier to
improve the signal quality from the
UHF aerial down-lead. Also, ensure
that your aerial is positioned
correctly (pointing at your local TV
transmitter). Replace corroded
aerials.
Herringbone pattern Too strong signal or local high-power
transmitter such as CB, amateur or
taxi radios.
Use a signal attenuator to reduce the
gain of your aerial signal. Point your
aerial at an alternative transmitter in
order to receive a more suitable
signal level.
Problems with DTT Insufficient or too strong digital
signal.
Fit a suitable wide-band, high-gain
aerial to help improve the signal
quality to a suitable level. Fit a signal
attenuator between the aerial and
the DTT receiver to weaken the
signal.
Problems with satellite televisions Loose connection. Check that all cables and connectors
are properly inserted.
7. Technical Specifications
Frequency UHF 470 – 863MHz
VHF 47 – 230MHz
FM 28 – 108MHz
Gain 18dB
Noise < 4dB
Impedance 75 ohms
Weight 275g
Dimensions 130 x 75 x 46mm
The information in this manual is subject to change without prior notice.