Page 37 of 48 pages
LENCO
TFT-711
ENGLISH
DVB-T RECEPTION TIPS
DVB-T reception is subjected to reception areas. Every country that has setup a DVB-T network, has
set it up differently form other countries. In fact most countries has set up their network for reception of
the DVB-T signals with outside antenna’s. Only in a certain radius of the Transmitter DVB-T signals
can be received inside a building. Even then it depends on the building construction and the
surrounding environment. There are countries that transmit DVB-T signals with over 100MegaWatt,
and there are countries that transmit with 10MegaWatt and everything in between. Then signals can
be transmitted in Horizontal or Vertical polarization or a mix of the two and in Band III, IV and V. At this
moment of time only in Germany and Australia are broadcasting also on Band III. Many tests were
done in Europe with different antenna’s and found out that the reception with a metal rod antenna is
not good and optimum. The Metal rod antenna is not made for Broadband reception.
Reception inside depends totally on the DVB-T network and how it is set-up. Even when a network is
created for inside reception, then it depends on how the location is. When you have windows with sun
protection layer or mirror windows, then these layers are actually blocking DVB-T signals. Concrete
buildings, metal roofing, lowered ceilings, nearby tall buildings, bridges, trees etc, all can have an
impact on the correct reception inside a home.
If you use the TFT-711 in a good outdoor or indoor DVB-T reception area, then you can connect the
DASC antenna directly onto the antenna input. The DASC antenna provides for interference free
reception and a clear picture.
The DASC antenna is omni directional and is in all direction evenly sensitive. Therefore in good DVB-
T signal area’s it does not matter how the antenna is “pointing” and the direction of the unit itself is of
no influence.
In weaker DVB-T area’s
In weaker reception areas , the DASC will be a bit more sensitive to the direction of the unit because
the TFT-711 itself forms a ground-plane and depending to the position of the unit towards the DVB-T
transmission tower, turn the TFT-711 slowly to see if reception improves. (This only when the DASC
Antenna is directly placed on the unit.)
Turning to the tower
Situation two (unit moved)
Turn the unit into a direction to see if there is an improvement in receiving channels and turn it again
into the other direction to receive the other channels.
In extreme situations the unit needs to be turned 180 degrees
TOWER
UNIT
SIGNAL DIRECTION
