Instruction manual - Digital 6000 (v4.0)

Table Of Contents
Recommendations for using antennas
182
Omni-directional antennas receive the signals from every horizontal
direction equally and are not directed.
Directional antennas amplify signals from a specific direction while
the remaining signals are attenuated. If you want to receive only trans-
mitters from a specific direction, for example, if the antennas are next
to a stage, we recommend using this type of antenna because it can sig-
nificantly improve the reception quality.
Losses due to cable properties and length
The antennas must be connected to the receivers using coaxial cables with
BNC connectors.
The quality of this cable can vary greatly. The impedance must be 50 ohm
and meet the RG58 standard at minimum. The cable must be mechanically
undamaged and must not be kinked.
All coaxial cables have attenuation that increases with the length. There-
fore, the length should not be greater than necessary and a length of 10 m
(32 ft) should not be exceeded whenever possible.
With longer cables, ensure the attenuation levels are good or use active
antennas.