Televes H45 Compact, User Manual

Page: 79 / 140

TV
Mode
79
3.3.3.2.1.5.- Field strength
This unit corresponds to a measure of intensity of electric field in a given point. For the
accomplishment of this measure we should take into account all the elements, from the signal
collection system used (antenna) up to the measuring equipment (prior, cable ...).
For the H45 , this unit is calculated for a Televes DAT-HD antenna and 10 meters of cable T100
(for more information, please visit http://www.televes.com).
- Field Strength -
ICT legislation establishes minimum standards that must be taken at the point of signal
collection. In the case of terrestrial television you can see the following table:
Signal Type Frequencies (MHz) Field Strength
Analog 470 - 582 65 dB(µV/m)
Analog 582 - 830 70 dB(µV/m)
Digital 470 - 862
56.4 - 61.7dB(µV/m)
3+20 log f (MHz) dB(µV/m)