Passive repeater review

[Conrad]

This product line represents an interesting technical solution as regards the implementation of radio networks to microwave in areas where visibility between radio terminals is zero or greatly reduced due to the presence of obstacles on the radio links (mountains, buildings, trees, etc..). Repeaters are called "passive" because, for their use, require no power.

The passive transponder antenna were designed in order to guarantee the following advantages in terms of installation and maintenance:

• Wide range of models to meet all types of possible requirements.
  
• Simplified installation through the use of reflective panels weight and small size.
  
• More operational (frequency of 2 to 23 GHz)
  
• Regulations and Zenith independent azimuthal
  
• Orientation angles amplified (to avoid errors of alignment)

The reflective surface is made up of panels, joined together, form the reflective area applied with dimensions between 2 and 120 m. The reflective surface perfectly flat, is able to guarantee perfect operation to the frequency bands 23 GHz. Upon request, the areas suitable for higher frequencies can be provided.

[Effren]

It has the advantage over the installation of a microwave radio relay station with active components, that at the place of the installation no electricity supply is required and that no further frequencies are needed (at repeater stations with active components usually different frequencies for reception and transmission are used, in order to prevent feedbacks). The corresponding disadvantage is that the returned signal is significantly weaker.

[Nalin]

The reflective surface is made up of panels, joined together, form the reflective area applied with dimensions between 2 and 120 m. The reflective surface perfectly flat, is able to guarantee perfect operation to the frequency bands 23 GHz. Upon request, the areas suitable for higher frequencies can be provided. In over 25 years of market presence, more than 540 radio links operating in the world through passive repeaters. The knowledge gained allows antenna assist the customers in all phases of application of passive repeaters, from free feasibility analysis.