LENCO TFT-711 User Manual page 39

LENCO
Digital Terrestrial Tuner:
Mini Tuner
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BAND III, IV and V (174~860 MHz Frequency Range - VHF/UHF)
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Band 6MHZ, 7MHZ or 8MHZ
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Input Level: -85 ~ -12dBm
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Input Impedance: 75 Ohm
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(TFT-711 only) Active 5Vdc IEC connection (protected)
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AV Input / Output, Headphone output:
Video Output Level: 1.0 Vp-p
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Video Output Impedance: 75 Ohm
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Audio Output frequency Range: 20Hz ~ 20KHz
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7 Inch TFT color LCD
7 Inch Wide View (16:9) TFT Color LCD (analog)
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High Resolution: 1440 (480x3) x 234 Pixels
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Anti-reflection against daylight
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Low power LED Backlight Technology
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DASC ANTENNA:
What is DASC technology?
DASC stands for Digital Active Signal Collector and is an antenna technology is developed in Europe for the TFT-711 for
strong reception of the DVB-T signals and To overcome the passive Antenna drawbacks. Metal (rod) antennas are not
designed for broadband reception, have no filters built-in and have no amplification. Reception is only possible in the areas
where a strong and clear DVB-T signal is present. Even then reception can be distorted (resulting in jittered or frozen
images and squeaking sounds). When an amplifier is used with a metal rod antenna, it will not improve it's reception, it will
only amplify all the noise, making it even worse. The DASC antenna is eliminating all these annoyances with a special
amplifier and special built-in filters, improving reception considerably and resulting in an exceptionally better reception even
in those difficult reception areas.
The big difference between a passive and an active antenna is seen in these area's where the signals become weak or
difficult due to echo's in the signal. The latter happens a lot in populated area's with high buildings, like the many flat
apartments in for example Spain. Secondly you will notice it in these area's where the providers have set up their network
for reception of the DVB-T signal with outside aerials. Most European countries have a network like this with exception of
the Netherlands and parts of Germany where they simply use very high powered transmitters.
The DASC antenna is perfectly matched with the TFT-711 and has the following key features:
Broadband reception in miniature size (150 – 900Mhz).
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Can be easily mounted on the TFT-711.
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High effective passive signal collection for high Signal-to-noise ratio.
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Low noise integrated amplifier
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Optimized internal gain of 14dB
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Low-pass filtering for suppression of GSM, DECT, and other carriers > 862MHz.
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High-pass filtering for suppression of impulsive noise, public broadcasting < 470MHz.
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Receives DVB-T signals OMNI-Directional (in all directions)
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Receives DVB-T signals in Band III, IV and V (6, 7 and 8 MHz)
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Receives DVB-T signals in horizontal and Vertical transmission modes
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Low-loss IEC-connector
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Dimensions
Unit: 187x120x37mm
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Weight
Unit: ±550 gr (without batteries)
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TFT-711
Page 36 of 48 pages
ENGLISH